Flexible Container Bag
The flexible container bag allows remote opening of the discharge section using a string-like member and covering member, ensuring safety by preventing direct contact and damage.
Patent Information
- Application Number
- JP2025002198U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2035-07-03
AI Technical Summary
Conventional flexible container bags require workers to crawl under them to open the discharge section, posing safety risks.
A flexible container bag design featuring a first string-like member that closes the discharge section, allowing remote opening by cutting the exposed portion using a cutting blade, and a covering member to protect the discharge section from external damage.
Enables safe and remote opening of the discharge section without crawling, preventing damage to the discharge mechanism.
Smart Images

Figure 0003252658000001_ABST
Abstract
Description
[Technical Field]
[0001] This invention relates to a flexible container bag used for transporting and storing contents. [Background technology]
[0002] In the conventional flexible container bag 110, as shown in FIG. 7, the worker has chosen to close the discharge section 160 by wrapping a binding tape 180 around it and securing it with a slide hose 181. Summary of the Invention [Problem to be solved by the invention]
[0003] However, with the flexible container bag 110 described above, a worker must crawl under the flexible container bag 110 to open the discharge section 160, and it has been desired to perform the work remotely and safely.
[0004] In view of the above circumstances, the present invention aims to provide a flexible container bag that allows the discharge section to be opened remotely without having to crawl under the flexible container bag, ensuring safety. [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, an input portion at the top of the main body and a cylindrical discharge portion at the bottom wall, in which an object is inserted through the input portion with the discharge portion closed, and the object is discharged by opening the discharge portion, a first string-like member that closes the discharge portion; When viewed from below, the first string-like member has one end fixed to one side of the main body that will become the discharge section, and the other end fixed to the other side of the discharge section, and is wrapped around the discharge section at the middle part, thereby closing the discharge section.
[0006] According to this, by wrapping a linear or band-shaped member having a cutting blade or the like around the first string-shaped member and cutting it, it is possible to open the discharge section remotely, without having to crawl under the flexible container bag, ensuring safety.
[0007] In addition, a covering member capable of covering the closed discharge portion is arranged on the bottom wall, and the covering member is held in a state in which the discharge portion is covered by a second string-shaped member.
[0008] According to this, by arranging the closed discharge section between the main body section and the covering member, it is possible to eliminate problems caused by the discharge section being exposed (such as damage to the discharge section or the first string-shaped member due to contact with the outside).
[0009] The first string-shaped member includes a covered portion that is covered by the covering member and an exposed portion that is not covered by the covering member, The exposed portion is cuttable.
[0010] This allows the first string-shaped member to be cut by utilizing the exposed portion, avoiding interference with the covering member, thereby ensuring safety and enabling the discharge section to be opened remotely. [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 below. [Figure 2] FIG. [Figure 3] FIG. 10 is an explanatory cross-sectional view of the discharge section in a closed state. [Figure 4] FIG. 10 is an explanatory bottom view of the discharge unit in a closed state. [Figure 5] 10A and 10B are explanatory views of the discharge section of the embodiment when it is closed. [Figure 6] 10 is an explanatory diagram of the discharge section of the embodiment when it is opened. FIG. [Figure 7] 10A and 10B are explanatory diagrams of opening and closing of a discharge portion of a conventional flexible container bag. 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.
[0013] As shown in Figures 1 to 6, the flexible container bag 10 generally comprises a main body 20 having a cylindrical peripheral wall 30 and a bottom wall 40 that closes the lower side of the peripheral wall 30, and has a cylindrical discharge section 60 on the bottom wall 40, with the upper side of the peripheral wall 30 open to form an insertion section 21, and with the discharge section 60 closed, items are inserted through the insertion section 21, and the discharge section 60 is opened to discharge the items inside.
[0014] In this embodiment, the main body 20 is made of polypropylene and includes a peripheral wall 30 and a bottom wall 40 .
[0015] 1, the peripheral wall 30 is formed in a seamless four-tube shape. Long, strip-shaped hanging belts 31 are disposed on the upper corners of the peripheral wall 30. In this embodiment, the open upper portion of the peripheral wall 30 serves as the insertion section 21.
[0016] As shown in Figure 1, the bottom wall 40 is rectangular with a cross-shaped notch formed in the center, and when the area around the notch of the bottom wall 40 hangs down, a rounded rectangular opening 41 is formed (see Figures 5 and 6).
[0017] In this embodiment, four triangular portions around the opening 41 of the bottom wall 40 serve as a covering member 50 that can cover the closed discharge portion 60. An insertion hole 51 is formed at the tip of the covering member 50, through which a second string-like member 80 (described later) can be inserted.
[0018] The discharge part 60 is made of polyethylene and has a cylindrical shape that extends downward. The upper end of the discharge part 60 is sewn to the periphery of the opening 41 of the bottom wall 40, so that the bottom wall 40 and the discharge part 60 are integrated. How to open and close the discharge part 60 will be described later.
[0019] The first string-like member 70 and the second string-like member 80 are made of existing string members.
[0020] The manner in which the discharge section 60 of the flexible container bag 10 is opened and closed will now be described.
[0021] 5(a), (b), and (c), when closing the discharge portion 60, one end of the first string-shaped member 70 is fixed to one side of the bottom wall 40 that will become the discharge portion 60 when viewed from below, with the discharge portion 60 as the reference. The middle portion of the first string-shaped member 70 is wound once around the discharge portion 60, and the other end of the first string-shaped member 70 is fixed to the other side of the discharge portion 60, thereby closing the discharge portion 60 (see FIG. 4).
[0022] The closed discharge section 60 is arranged along the bottom wall 40 and covered with a four-piece covering member 50. Second string-like members 80 are inserted into the insertion holes 51 and fastened in a cross shape, and the four-piece covering member 50 maintains the closed state.
[0023] In this case, the first string-shaped member 70 has a covered portion 71 that is covered by the covering member 50 and an exposed portion 72 that is not covered by the covering member 50.
[0024] When opening the discharge section 60, as shown in Figures 6(a), (b), and (c), the second string-like member 80 is untied, the covering state of the covering member 50 is released, and a linear or strip-like member having a cutting blade or the like is wrapped around the part that was previously the exposed section 72, and the first string-like member 70 is cut while avoiding interference with the hanging covering member 50, thereby allowing the discharge section 60 to be opened remotely without having to crawl under the flexible container bag 10.
[0025] The flexible container bag 10 of the present invention is a flexible container bag having a main body 20 with a cylindrical peripheral wall 30 and a bottom wall 40 closing the lower side of the peripheral wall 30, an input section 21 at the top of the main body 20 and a cylindrical discharge section 60 at the bottom wall 40, in which an object to be contained is inserted through the input section 21 with the discharge section 60 closed, and the object is discharged by opening the discharge section 60. a first string-like member 70 that closes the discharge portion 60; When viewed from below, the first string-like member 70 has one end fixed to one side of the main body 20 that is one side of the discharge section 60, and the other end fixed to the other side of the discharge section 60, and is wrapped around the discharge section 60 at the middle part, thereby closing the discharge section 60.
[0026] According to this, by wrapping a linear or band-like member having a cutting blade or the like around the first string-like member 70 and cutting it, it is possible to open the discharge section 60 by remote control, ensuring safety without having to crawl under the flexible container bag 10.
[0027] In addition, a covering member 50 capable of covering the closed discharge section 60 is arranged on the bottom wall 40, and the covering member 50 is held in a state in which the discharge section 60 is covered by a second string-shaped member 80.
[0028] According to this, by disposing the closed discharge section 60 between the main body section 20 and the covering member 50, it is possible to eliminate problems caused by the discharge section 60 being exposed (such as damage to the discharge section 60 or the first string-shaped member 70 due to contact with the outside).
[0029] The first string-shaped member 70 includes a covered portion 71 that is covered by the covering member 50 and an exposed portion 72 that is not covered by the covering member 50, The exposed portion 72 is cuttable.
[0030] This allows the first string-like member 70 to be cut using the exposed portion 72 while avoiding interference with the covering member 50, thereby ensuring safety and enabling the discharge section 60 to be opened by remote control.
[0031] 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.
[0032] For example, the bag may be configured to have an upper wall that closes the upper side of the peripheral wall 30 and a cylindrical insertion portion in the upper wall, with a roughly trapezoidal tying rope threading piece extending from near the hole in the upper wall, and the tying rope being inserted into the cylindrical portion at the upper end of the tying rope threading piece, in other words, a flexible container bag with an insertion opening at the top.
[0033] In addition, the four covering members 50 and the four second string-like members 80 can be sewn together and the second string-like members 80 can be tied together to keep the discharge portion 60 covered.
[0034] Furthermore, the main body 20 may have a two-layer structure of an inner member and an outer member, with the discharge portion 60 disposed on the inner member and the covering member 50 disposed on the outer member. [Explanation of symbols]
[0035] 10 Flexible Container Bags 20 Main body 21 Input section 30 Peripheral wall 40 Bottom Wall 50 Covering member 60 Discharge section 70 First cord-like member 71 Covering part 72 Exposed part 80 Second string member
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, an insertion portion at an upper portion of the main body and a cylindrical discharge portion at the bottom wall, in which an object to be contained is inserted through the insertion portion with the discharge portion closed, and the object to be contained inside is discharged by opening the discharge portion, a first string-like member that closes the discharge portion; The flexible container bag is characterized in that, when viewed from below, one end of the first string-like member is fixed to one side of the main body portion that will become one of the discharge sections, and the other end is fixed to the other side of the discharge section, and the first string-like member closes the discharge section by being wrapped around the discharge section at the middle part.
2. The flexible container bag according to claim 1, characterized in that a covering member capable of covering the closed discharge portion is arranged on the bottom wall, and the covering member is held in a state in which the discharge portion is covered by a second string-like member.
3. the first string-shaped member includes a covered portion that is covered by the covering member and an exposed portion that is not covered by the covering member, 3. The flexible container bag according to claim 2, wherein the exposed portion is cuttable.
Citation Information
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