Bag-like container and method of lifting the same

Abstract

To provide a bag-like storage body which can be easily lifted by using a heavy machine having a suction device and a hook, and a method for lifting the same.SOLUTION: The bag-like storage body includes a bag body for storing contents, a hanging belt attached to the bag body for hanging the bag body, and a strip-like sheet attached to the center part in the longitudinal direction of the hanging belt. The bag-like accommodating body can be easily lifted by a method including a step of sucking the strip-shaped sheet by a suction device using a heavy machine having the suction device and a hook, a step of forming a space between the suspension belt and the bag main body by moving the suction device upward, a step of inserting the hook into the space, and a step of lifting the bag-like accommodating body by moving the hook upward.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a bag-shaped container that can be lifted using heavy machinery having a suction device and a hook, and a lifting method thereof. [Background technology]

[0002] Generally, loads such as powdered materials such as soil, cement, and grains, as well as radioactive waste removed during decontamination, are stored and transported in bag-like containers such as flexible container bags and sandbags. When transporting these loads, the bag-like containers are hooked onto a hoisting device attached to a work machine (heavy machinery) such as a hydraulic excavator or crane and lifted. At this time, a worker performs a slinging operation in which a pair of slings or ropes attached to the bag-like container are slinged onto the hoisting device.

[0003] However, slinging work carries the risk that a worker may come into contact with the sling or be crushed under the bag-like container when the work machine is operating, and the worker may be exposed to radiation if the bag-like container contains radioactive waste. Therefore, it is necessary to have the bag-like container hoisted by hooking a pair of slings or ropes onto the sling only by the operation of the work machine operator, without the worker performing slinging work.

[0004] Patent Document 1 describes a load lifting device that includes an attracted member attached to a flexible wire handle attached to a load, a suction device that attracts the attracted member and pulls up the handle from a lying down position, forming a hooking hole between the handle and the top of the load, a lifting tool having a hook-shaped hook that is inserted into the hooking hole and hooks the handle, and a lifting device that lifts the load hung on the lifting tool.The hook has a base end that is rotatably supported on the main body of the lifting tool by a support pin with a horizontal axis, and rotates vertically relative to the main body around the support pin to move between a closed position where the tip faces upward and an open position where the tip faces downward.The suction device attracts the attracted member by suction force, and has a suction port that is positioned opposite the hook in the closed position and opens downward. Patent document 1 describes the attracted member as a sphere or a linear body (string) attached to the longitudinal center of the area of ​​the handle that forms the hook hole between it and the top of the load. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2023-42182 Summary of the Invention [Problem to be solved by the invention]

[0006] However, when a sphere is used as the member to be sucked, the member to be sucked (sphere) must be moved very close to the suction port of the suction device, and the operator of heavy machinery such as a hydraulic excavator or crane must fine-tune the position of the suction port. Furthermore, when a sphere is used as the member to be sucked, it becomes difficult to pull up the belt when the sphere gets under the belt (when the belt becomes twisted, for example). Furthermore, the sphere and the hanging belt must be secured with a string or the like, and if the string is not strong enough, there is a risk that the sphere alone will be sucked into the suction port of the suction device and lost. While both the bag body and the belt can be easily folded when folding the bag-shaped container, there is also the issue that the sphere alone cannot be folded.

[0007] Furthermore, when a wire (string) is used as the suction target, the wire (string) can get wrapped around a hanging belt or the like, making it difficult to untie it. In addition, the force holding the wire (string) in a sucked state from the suction port of the suction device is very weak, making it difficult to maintain the handle attached to the load in a pulled-up state.

[0008] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a bag-shaped container that can be easily lifted using heavy machinery having a suction device and a hook, and a method for lifting the same. [Means for solving the problem]

[0009] The present invention includes a bag body for accommodating contents, a lifting belt attached to the bag body for lifting the bag body; a strip-shaped sheet attached to the longitudinal center of the suspension belt; It is a bag-shaped container having the following.

[0010] The present invention also provides a method for lifting the bag-like container using heavy machinery having a suction device and a hook, comprising: a step of sucking the strip-shaped sheet with the suction device; a step of moving the suction device upward to form a space between the hanging belt and the bag body; inserting the hook into the space; a step of lifting the bag-shaped container by moving the hook upward; have A method for lifting a bag-shaped container. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a bag-shaped container that can be easily lifted using heavy machinery having a suction device and a hook, and a lifting method thereof. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a schematic perspective view showing the configuration of a bag-shaped container according to an embodiment of the present invention. [Figure 2] 2 is an enlarged view showing the structure of a connection portion between a hanging belt and a strip-shaped sheet in the bag-shaped container of FIG. 1. FIG. [Figure 3] 1 is a schematic diagram illustrating a method for lifting a bag-shaped container according to one embodiment of the present invention, showing (a) a state in which a suction device is brought close to a strip-shaped sheet, (b) a state in which the strip-shaped sheet is being sucked by the suction device, (c) a state in which the suction device is moved upward to form a space between the hanging belt and the bag body, and (d) a state in which a hook is inserted into that space. DETAILED DESCRIPTION OF THE INVENTION

[0013] The configuration of a bag-shaped container 1 according to one embodiment of the present invention is shown in Fig. 1. The bag-shaped container 1 shown in Fig. 1 has a bag body 2 that contains the contents, and a hoisting belt 3 attached to the bag body 2 and used to hoist the bag body 2. The bag-shaped container 1 can contain, for example, powdered or granular materials such as soil, cement, and grains, or radioactive waste removed by decontamination, in the bag body 2; specific examples include bag-shaped containers called sandbags and flexible containers.

[0014] The bag body 2 typically has an inlet (not shown) at the top through which contents can be inserted, and an outlet (not shown) at the top and / or bottom through which the contents can be removed. A single opening may serve as both the inlet and outlet. The inlet and outlet are typically closed when the bag body 2 contains contents. The bag body 2 may be made of various materials used for cross-type or running-type sandbags, flexible containers, etc. Specific examples of materials used for the cross-type bag body 2 include yarn fabrics obtained by weaving flat yarns made of polyolefin resins such as polyethylene and polypropylene as warp and weft on a loom. Specific examples of materials used for the running-type bag body 2 include woven fabrics and resin-treated fabrics made of ethylene-vinyl acetate copolymer (EVA), polyvinyl chloride (PVC), various rubbers, polyethylene, etc.

[0015] The bag-shaped container 1 with contents accommodated inside the bag body 2 becomes very heavy, and is therefore lifted and transported by heavy machinery such as a hydraulic excavator or a crane. For this reason, a lifting belt 3 is attached to the bag body 2 for lifting the bag body 2. The lifting belt 3 is preferably attached at both ends to the bag body 2 by sewing to the bag body 2 or by fastening to the bag body 2 with a hook-and-loop fastener, so that the bag body 2 can be easily balanced when lifted. The material of the lifting belt 3 can be the same as that of the bag body 2. The number of lifting belts may be one or three or more, but two is preferred because it makes it easier to balance the bag body 2 when lifted (Fig. 1).

[0016] The width of the suspending belt 3 may be selected as appropriate so long as it is capable of hoisting the bag body 2. However, if it is too short, the strength will be weak, and if it is too long, the bag body will be heavy. Therefore, a width of 30 to 160 mm (30 to 80 mm when folded in half) is preferred, and a width of 40 to 130 mm (40 to 65 mm when folded in half) is more preferred, and it can be set to, for example, 100 mm (50 mm when folded in half). The length of the suspending belt 3 (limited to the area not connected to the bag body 2) may be selected as appropriate so long as it is capable of hoisting the bag body 2. However, if it is too short, it will be difficult to hook onto the hook of heavy machinery, and if it is too long, the bag body 2 cannot be hoisted over a sufficient distance. Therefore, a length of 800 to 2000 mm is preferred, and a length of 1000 to 1500 mm is more preferred, and it can be set to, for example, 1200 mm. The suspending belt 3 may be a rope-like belt instead of a belt-like belt.

[0017] In the present invention, the strip-shaped sheet 4 is attached to the hoisting belt 3. By doing so, an operator of heavy machinery having a suction device and a hook can suck up the strip-shaped sheet 4 with the suction device and hook the hoisting belt 3 onto the hook, thereby easily hoisting the bag-shaped container 1 (a specific hoisting method will be described later). Furthermore, by attaching the strip-shaped sheet 4 to the longitudinal center of the hoisting belt 3, it becomes easier to balance the bag body 2 when it is hoisted. The attachment position of the strip-shaped sheet 4 may be selected appropriately within the longitudinal center of the hoisting belt 3 within a range that makes it easier to balance the bag body 2 when hoisted. For example, the attachment position may be 40 to 60% of the longitudinal length of the hoisting belt 3 (limited to the area not connected to the bag body 2). The strip-shaped sheet 4 may be, for example, a flexible sheet such as a polyethylene sheet.

[0018] The width of the strip-shaped sheet 4 may be selected as appropriate within the range that allows it to be sucked up by the suction device. However, if it is too short, the suction and retention force of the suction device will be weak, and if it is too long, it will be difficult to suck up the sheet through the suction port of the suction device. Therefore, it is preferably 20 to 100 mm, more preferably 35 to 75 mm, and can be, for example, 50 mm. The length of the strip-shaped sheet 4 may be selected as appropriate within the range that allows it to be sucked up by the suction device. However, if it is too short, the suction and retention force of the suction device will be weak, and if it is too long, the suction device will be large. Therefore, it is preferably 100 to 300 mm, more preferably 150 to 250 mm, and can be, for example, 200 mm. The thickness of the strip-shaped sheet 4 may be selected as appropriate within the range that allows it to be sucked up by the suction device. However, if it is too thin, the suction and retention force of the suction device will be weak, and if it is too thick, it will be difficult to suck up the sheet through the suction port of the suction device. Therefore, it is preferably 0.15 to 0.50 mm, more preferably 0.30 to 0.45 mm, and can be, for example, 0.36 mm.

[0019] As shown in an enlarged view in FIG. 2, it is preferable that one end 4E of the strip-shaped sheet 4 is attached along the center line 3C extending in the longitudinal direction of the hanging belt 3. This allows the suction device to suck up the strip-shaped sheet 4, thereby making it easier for the suction device to suck the hanging belt 3 itself and exert a strong holding force when the strip-shaped sheet 4 is sucked up by the suction device. The number of strip-shaped sheets 4 attached to the hanging belt 3 may be one or three or more. However, two strip-shaped sheets 4 are preferred from the viewpoint of expanding the area where the strip-shaped sheets 4 are present by unfolding in opposite directions relative to the center line 3C (FIGS. 1 and 2). Even if three or more strip-shaped sheets 4 are used, the third and subsequent strip-shaped sheets 4 can only unfold in the opposite direction relative to the center line 3C, so the area where the strip-shaped sheets 4 are present cannot be expanded as compared to when two strip-shaped sheets are used. When there are two hanging belts 3, the strip-shaped sheets 4 need only be attached to one of the belts, but they may also be attached to both belts. When there are three or more suspension belts 3, the strip-shaped sheet 4 only needs to be attached to at least one of them.

[0020] When there are two hanging belts 3, it is preferable that a tie belt 5 for bundling them is attached to one of them. When there are three or more hanging belts 3, it is preferable that a tie belt 5 for bundling them is attached to at least one of them. In this way, multiple hanging belts 3 can be bundled together, and by sucking up the strip-shaped sheet 4 with a suction device, multiple hanging belts 3 can be moved upward together. The tie belt 5 is preferably attached to the hanging belts 3 by sewing to the hanging belts 3 or by fastening to the hanging belts 3 with a hook-and-loop fastener. The attachment position of the tie belt 5 to the hanging belts 3 may be any position that does not interfere with sucking up the strip-shaped sheet 4 with a suction device. The tie belt 5 may be appropriately selected from those that can bundle multiple hanging belts 3, but a hook-and-loop fastener belt is preferable from the viewpoint of easy attachment and detachment of the hanging belts 3 bundled with the tie belt 5.

[0021] Furthermore, it is preferable that the binding belts 5 are made of rubber or other material with a certain degree of flexibility and hardness, so that when the strip-shaped sheets 4 are sucked up by a suction device and the multiple hanging belts 3 are moved upward together, the binding belts 5 bundling them together are less likely to come off.

[0022] The bag-shaped container 1 described above can be easily lifted using heavy machinery equipped with a suction device and a hook. The lifting method will be explained below with reference to Figure 3. If the bag-shaped container 1 has multiple lifting belts 3 and bundling belts 5, it is preferable to bundle the multiple lifting belts 3 with the bundling belts 5 in advance.

[0023] Examples of heavy machinery include hydraulic excavators and cranes, and a lifting device 20 is attached to the tip of their arms (not shown). Attached to the lifting device 20 are a suction device 10 capable of sucking from a suction port 11 facing downward, a hook 21 for hooking a lifting belt, and a stopper 22 for closing the tip of the hook 21, and the hook 21 and the stopper 22 can be opened and closed by rotating around a hook support pin 21a and a stopper support pin 22a. It is preferable that the opening and closing of the hook 21 and the stopper 22 are linked.

[0024] Suction device 10 is cylindrical and can suction air through suction port 11, which is an opening at one end. The diameter (inner diameter) of suction port 11 of suction device 10 is preferably 50 mm, the same as the diameter of a currently commercially available bellows hose, but in principle can be selected appropriately within a range that allows for sucking up strip-shaped sheet 4, and can be selected from, for example, 20 to 100 mm, or can also be selected from 35 to 75 mm. From the perspective of ease of sucking up strip-shaped sheet 4, the diameter (inner diameter) of suction port 11 of suction device 10 is preferably within a range of the width of strip-shaped sheet 4 minus 10 mm to the width of strip-shaped sheet 4, and more preferably is the same as the width of strip-shaped sheet 4.

[0025] First, the operator of the heavy equipment turns on the switch of the suction device 10 and moves the position of the lifting device 20 to bring it closer to the strip-shaped sheet 4 of the bag-shaped container 1 (FIG. 3(a)). At this time, the hook 21 and the stopper 22 are in the "open" state. In the present invention, the strip-shaped sheet 4 is attached to the hanging belt 3, and the area where the strip-shaped sheet 4 exists is relatively wide, so the suction device 10 can be easily brought close to the location where the strip-shaped sheet 4 exists. Then, when the suction port 11 of the suction device 10 approaches the strip-shaped sheet 4 to a certain distance, the strip-shaped sheet 4 is sucked in by the suction port 11 of the suction device 10 (FIG. 3(b)).

[0026] While maintaining this state, the operator of the heavy equipment moves the position of the suction device 10 (lifting device 20) upward. If a bellows hose is used as the suction device 10, the suction port 11 moves upward as the bellows-shaped suction device 10 contracts, even without moving the position of the suction device 10. At this time, since the strip-shaped sheet 4 is being sucked through the suction port 11 of the suction device 10, not only the strip-shaped sheet 4 but also the hanging belt 3 to which the strip-shaped sheet 4 is attached is lifted upward, and a space can be formed between the hanging belt 3 of the bag-shaped container 1 and the bag main body 2 (FIG. 3(c)). Note that the hanging belt 3 to which the strip-shaped sheet 4 is not attached is also lifted upward in the same way because it is bound by the bundling belt 5.

[0027] While maintaining this state, the operator of the heavy equipment sets hook 21 of lifting device 20 to the "closed" state. At this time, stopper 22 is also set to the "closed" state (preferably in conjunction with this). By doing so, hook 21 of lifting device 20 can be inserted into the space formed between hoisting belt 3 of bag-shaped container 1 and bag body 2 (FIG. 3(d)). Then, the operator of the heavy equipment can lift bag-shaped container 1 by moving hook 21 (lifting device 20) upward.

[0028] As described above, according to the present invention, it is possible to easily lift a bag-shaped container using heavy machinery having a suction device and a hook. [Explanation of symbols]

[0029] 1. Bag-shaped container 2 bags 3 Hanging belt 3C center line 4 Strips of paper 4E End 5. Binding belt 10 Suction device 11 Suction port 20 Lifting equipment 21 Hook 21a Hook support pin 22 Stopper 22a Stopper support pin

Claims

1. A bag body that contains the contents; a lifting belt attached to the bag body for lifting the bag body; a strip-shaped sheet attached to the longitudinal center of the suspension belt; A bag-shaped container having the following structure.

2. One end of the strip-shaped sheet is attached along a center line extending in the longitudinal direction of the suspension belt. The bag-shaped container according to claim 1 .

3. Two of the strip-shaped sheets are attached to the hanging belt. The bag-shaped container according to claim 1 .

4. Two of the hanging belts are attached to the bag body, The strip-shaped sheet is attached to one of the two hanging belts. The bag-shaped container according to claim 1 .

5. a bundling belt attached to at least one of the two suspension belts to bundle the two suspension belts together; Further having The bag-shaped container according to claim 4.

6. The binding belt has elasticity. The bag-shaped container according to claim 5 .

7. A method for lifting the bag-shaped container according to any one of claims 1 to 6 using heavy machinery having a suction device and a hook, comprising: a step of sucking the strip-shaped sheet with the suction device; a step of moving the suction device upward to form a space between the hanging belt and the bag body; inserting the hook into the space; a step of lifting the bag-shaped container by moving the hook upward; have A method for lifting a bag-shaped container.

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