Flexible Container Bag

Abstract

To provide a flexible container bag equipped with a hanging belt and capable of passing through the claws of a forklift without the need for an assistant worker. [Solution] A flexible container bag (10) comprises a main body (20) having at least a cylindrical peripheral wall (30) and a bottom wall (40) closing the lower side of the peripheral wall (30), and an insertion section (70) at the top of the main body (20) through which contents are inserted. A suspending belt (31) is disposed at the top of the peripheral wall (30). The suspending belt (31) comprises a high-rigidity section (31b) having high rigidity and a low-rigidity section (31a) having lower rigidity than the high-rigidity section (31b), with the low-rigidity section (31a) disposed on the peripheral wall (30) side.

Description

[Technical Field]

[0001] This invention relates to a flexible container bag used for transporting and storing contents. [Background technology]

[0002] In conventional flexible container bags, the suspension belts arranged to extend upward in a U-shape from the peripheral wall have flexibility. Summary of the Invention [Problem to be solved by the invention]

[0003] However, when the above-mentioned flexible container bag is packed with contents and transported by forklift, its flexibility can cause it to bend inward or sag downward, requiring an assistant worker to hold the hanging belt to pass it through the forklift's tines.

[0004] In view of the above circumstances, the present invention aims to provide a flexible container bag that can be passed through the claws of a forklift without the need for an assistant worker holding a lifting belt. [Means for solving the problem]

[0005] The device described in claim 1 is a flexible container bag having a main body having at least a cylindrical peripheral wall and a bottom wall closing the lower side of the peripheral wall, and an insertion part at the top of the main body, through which contents can be inserted, A suspension belt is disposed on the upper part of the peripheral wall, The suspension belt has a high-rigidity portion having high rigidity and a low-rigidity portion having lower rigidity than the high-rigidity portion, Equipped with The low-rigidity portion is disposed on the peripheral wall side.

[0006] With this, the high-rigidity section can maintain the shape of the lifting belt, so the forklift claws can be inserted even without an assistant. Furthermore, the low-rigidity section allows the lifting belt to be tilted outward, making it easy to stack flexible container bags on top of each other.

[0007] In addition, the circumferential length of the outer side of the suspension belt is longer than the circumferential length of the inner side of the suspension belt.

[0008] This makes it easier for the hanging belts to tilt outward, making it easier to stack them on top of each other.

[0009] The suspension belt also has a bent portion bent in the short direction, and the bent portion is disposed on the outer side of the suspension belt.

[0010] With this configuration, the hanging belts can be easily tilted outward, making it easier to stack them on top of each other. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view of a flexible container bag according to an embodiment of the present invention, seen from above; [Figure 2] FIG. 2 is a plan view of the flexible container bag of the embodiment. [Figure 3] FIG. 2 is a partially enlarged explanatory view of a flexible container bag. [Figure 4] FIG. [Figure 5] 10A to 10C are explanatory diagrams of a manufacturing method of a suspension belt. DETAILED DESCRIPTION OF THE INVENTION

[0012] An embodiment of the flexible container bag of the present invention will be described with reference to the drawings. In Fig. 3, the insertion part 70 is partially cut away to make the hanging belt 31 easier to see.

[0013] As shown in Figures 1 to 5, the flexible container bag 10 generally comprises a main body 20 having a rectangular cylindrical peripheral wall 30, a bottom wall 40 that closes the lower side of the peripheral wall 30, and an upper wall 50 that closes the upper side of the peripheral wall 30, and has an insertion section 70 in the upper wall 50 through which items to be contained can be placed.

[0014] In this embodiment, the main body 20 is made of polypropylene and includes a peripheral wall 30, a bottom wall 40, and an upper wall 50.

[0015] The peripheral wall 30 is formed in a seamless four-tube shape. Long, belt-like suspension belts 31 are disposed on the upper corners of the peripheral wall 30.

[0016] The suspension belt 31 is made of polypropylene or the like and is formed in a strip shape. The suspension belt 31 is bent in a substantially U-shape at the center in the longitudinal direction, and both ends in the longitudinal direction are sewn together at a total of eight locations on the peripheral walls 30 adjacent to each other across the boundary line.

[0017] A core material 34 is disposed within the suspension belt 31. The core material 34 is made of PET, formed into a long, flat plate, and set to have higher rigidity than the member covering the outside. The method of disposing the core material 34 will be described later.

[0018] The bottom wall 40 is rectangular and closes the lower end portion of the peripheral wall 30 (see FIG. 1).

[0019] The upper wall 50 is formed in a rectangular shape and is disposed so as to close the upper end portion of the peripheral wall 30, and has a circular hole formed in the center so that the contents can be inserted.

[0020] The insertion portion 70 is formed by cutting a polyethylene sheet into a seamless cylindrical shape. The lower part of the insertion portion 70 is connected to the portion of the upper wall 50 near the hole by sewing.

[0021] The process of providing the core material 34 to the suspension belt 31 will be described with reference to FIG.

[0022] As shown in Figures 5(a) and 5(b), a core material 34 is placed on a suspension belt forming member 35, and the suspension belt forming member 35 is folded in half in the short direction to form a folded portion 32. As shown in Figure 5(c), the PET core material 34 is sandwiched between the overlapping suspension belt forming members 35. The core material 34 is sewn along the edge opposite the folded portion 32 so that it is embedded and cannot easily move. The center of the suspension belt 31 is then folded in half to form a U-shape, which is then sewn to the peripheral wall 30, forming an integral suspension belt 31. As shown in Figures 2 and 3, the suspension belt 31 has a semicircular shape facing outward.

[0023] The suspension belt 31 has a low rigidity portion 31a (soft) at the base where the core material 34 is not arranged and is arranged on the peripheral wall 30 side, and a high rigidity portion 31b (hard) in the middle where the core material 34 is arranged.

[0024] The suspension belt 31 is semicircular and slightly tilted outward (but not too tilted) due to the difference in rigidity between the low-rigidity portion 31a and the high-rigidity portion 31b and the elasticity of the PET band.

[0025] The following describes how to use the flexible container bag 10. First, the items to be contained are placed into the loading section 70. Once the items have been placed into the flexible container bag 10, the loading section 70 is closed using a tie rope or the like, and the bag is then moved to a predetermined location by a forklift via the hoisting belt 31 and stored.

[0026] At this time, the high rigidity portions 31b can maintain the shape of the hoisting belts 31, so the forklift claws can be inserted even without an assistant. Furthermore, the low rigidity portions 31a make it possible to tilt the hoisting belts 31 outward, making it easy to stack flexible container bags 10 on top of each other.

[0027] As shown in Figures 2 and 5, the circumferential length L1 of the outer side of the hanging belt 31 is longer than the circumferential length L2 of the inner side of the hanging belt 31, which makes it more likely for sagging to occur and for the hanging belt 31 to tilt outward.

[0028] Also, as shown in Figures 2 and 5, since the bent portion 32 is arranged on the outside, the circumferential length L1 of the outer side of the hanging belt 31 becomes longer than the circumferential length L2 of the inner side of the hanging belt 31, making it easier for the hanging belt 31 to tilt outward.

[0029] The flexible container bag 10 of the present invention is a flexible container bag having a main body 20 having at least a cylindrical peripheral wall 30 and a bottom wall 40 closing the lower side of the peripheral wall 30, and an insertion portion 70 at the top of the main body 20, through which contents can be inserted. A suspension belt 31 is disposed on the upper part of the peripheral wall 30, The suspension belt 31 has a high rigidity portion 31b having high rigidity and a low rigidity portion 31a having lower rigidity than the high rigidity portion 31b. Equipped with The low rigidity portion 31a is disposed on the peripheral wall 30 side.

[0030] According to this, the high rigidity portion 31b can maintain the shape of the hoisting belt 31, so the forklift claws can be inserted even without an assistant. Furthermore, the low rigidity portion 31a allows the hoisting belt 31 to be tilted outward, making it easy to stack flexible container bags 10 on top of each other.

[0031] In addition, the circumferential length L1 of the outer side of the suspending belt 31 is longer than the circumferential length L2 of the inner side of the suspending belt 31.

[0032] This allows the hanging belts 31 to be easily tilted outward, making it easier to stack them on top of each other.

[0033] The suspension belt 31 also has a bent portion 32 bent in the short direction, and the bent portion 32 is disposed on the outside of the suspension belt 31.

[0034] Even with this configuration, the hanging belts 31 tend to tilt outward, making it easier to stack items on top of each other.

[0035] The flexible container bag of the present invention is not limited to the above-described configuration, and various design modifications are possible without departing from the spirit and scope of the present invention.

[0036] For example, it can also be applied to a flexible container bag that does not have an upper wall 50 that closes the upper side of the peripheral wall 30 and a cylindrical insertion portion 70 in the upper wall 50, in other words, in which the open portion on the upper side of the peripheral wall 30 is used as the insertion portion.

[0037] It can also be applied to a flexible container bag having a cylindrical discharge portion on the bottom wall 40.

[0038] Furthermore, the main body 20 may have a two-layer structure consisting of an inner member and an outer member.

[0039] Furthermore, the core material 34 can be made of any existing material as long as it can form the high-rigidity portion 31b and the low-rigidity portion 31a. [Explanation of symbols]

[0040] 10 Flexible Container Bags 20 Main body 30 Peripheral wall 31 Hanging belt 31a Low rigidity part 31b High rigidity part 32 Bend section 40 Bottom Wall 70 Input section L1 Circumference (outer side) L2 circumference (inner side)

Claims

1. A flexible container bag comprising a main body having at least a cylindrical peripheral wall and a bottom wall closing a lower side of the peripheral wall, and having an insertion portion at an upper portion of the main body, into which an object to be contained can be inserted through the insertion portion, A suspension belt is disposed on the upper part of the peripheral wall, The suspension belt has a high-rigidity portion having high rigidity and a low-rigidity portion having lower rigidity than the high-rigidity portion, Equipped with A flexible container bag characterized in that the low rigidity portion is arranged on the peripheral wall side.

2. 2. The flexible container bag according to claim 1, wherein the perimeter of the outer side of the hanging belt is longer than the perimeter of the inner side of the hanging belt.

3. 2. The flexible container bag according to claim 1, wherein the suspending belt has a bent portion bent in the short direction, the bent portion being disposed on the outer side of the suspending belt.

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