JPH1095492A - Flexible container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the strength of a hanging means and prevent breakage thereof in hanging down, to increase the safety. SOLUTION: Hanging means 3 composed of a cylindrical base material 16 are sewed on a container body 2 at a plurality positions. When the container is hung by fitting forks of a fork lift or a hook of a crane or the like to fitting parts 23 of hanging means 3, in the state that the contents are charged in the container body 2, since the fitting parts 23 are cylindrical and excellent in strength and the lower layer part side of the fitting part 23 can escape a little to the upper layer part side against the forks or the like, the fitting parts 23 do not contact the fork under tension. And since the hanging means 3 is kept in a contact state with the fork or the like, even if the fork is shifted under tension, the fitting parts are twisted and they are not easily shifted against the fork or the like under tension. And further, the upper side of the fitting part is hardly rubbed and cut.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible container used for storing and transporting or storing various articles such as cement, resin pellets, agricultural crops, clay, encapsulated liquid, etc. It relates to the structure of the means.

[0002]

2. Description of the Related Art Conventionally, as a flexible container of this kind, a cylindrical body is formed using a base material woven with a stretch tape yarn made of a polyolefin synthetic resin such as polyethylene or polypropylene, and the upper part of the body is formed. In addition, a configuration is known in which an upper lid and a bottom lid having an inlet and an outlet at the bottom and a bottom are attached, and a suspension belt made of a base material woven with a polyolefin-based synthetic resin stretched tape yarn or the like is sewn to the body. The flexible container having such a configuration is foldable, and is lightweight, simple, and inexpensive.

[0003] The above-mentioned flexible container is suspended by using a suspension belt, so that contents can be charged, transported, and so on.
We are working to discharge the waste. When suspending the flexible container in this manner, a load is applied to the body of the container body and the sewn portion of the suspension belt, but since the body of the container body is woven with the synthetic resin stretched tape yarn as described above, The sewn portion of the suspension belt to the trunk, in particular, the lower edge of the suspension belt in the trunk is cut without being able to withstand the load, and in the worst case, the container body or the contents may fall and be dangerous.

Therefore, conventionally, in order to prevent the above-mentioned danger, a lateral (peripheral) reinforcing belt is sewn to the trunk and a suspending belt is sewn to the reinforcing belt, or a suspending belt is attached to the trunk. And sew a reinforcing belt in the lateral direction (circumferential direction) on the trunk from above the suspending belt, or strengthen the sewn portion with the suspending belt on the trunk in the longitudinal direction in a belt shape,
A hanging belt is sewn to the belt-like reinforcing portion.

[0005]

As described above, if the sewn portion between the body of the container body and the suspension belt is reinforced, the fall of the sewn portion of the container body due to the cutting of the sewn portion when the flexible container is suspended. Can be reduced. However, it is not possible to prevent a fall accident due to breakage of the flat belt-shaped suspension belt. For example, when a flexible container is suspended by engaging the fork of a forklift or the hook of a crane with its suspension belt, the suspension belt is stretched like a string when a load is applied, and the suspension belt is When it rubs against a sharp hard object like a blade like a metal projection, the portion is relatively easily damaged. Also, while the flexible container is being transported by engaging the fork of a forklift with its suspension belt, the flexible container collides with an object,
When the suspension belt slides on the fork, or when the fork is pulled out of the suspension belt with the load applied to the fork without completely lowering the flexible container, the fork is worn and the corners are sharp. In some cases, the suspension belt rubs at this corner and is relatively easily damaged.

When one of the pair of suspension belts comes off the fork while the flexible container is being conveyed by the forklift as described above, the flexible container swings like a pendulum at that moment. The full load is applied to the remaining suspension belt, and the suspension belt is cut to tear or slipped on a fork to wear. Furthermore, when a flexible container loaded on the bottom of the ship and compressed from all sides is pulled out by a crane for landing, if the hanging belt is not in a stable state on the hook of the crane, the hanging belt is shifted with respect to the hook and cut off. . As described above, human factors other than deterioration due to irradiation with ultraviolet rays, mistakes in work methods, and the like are compounded and the suspension belt is cut, and a container accident often falls.

The present invention has been made to solve the above-mentioned conventional problems, and can improve the strength of the suspending means so as to prevent the suspension means from being cut by being rubbed or the like at the time of suspension. It is an object of the present invention to provide a flexible container capable of preventing a container main body from falling accident, that is, an occupational accident by improving operability.

[0008]

A flexible container according to the present invention for achieving the above object comprises a container body,
A loop-shaped suspending means attached to the container body and having a suspending engagement portion, wherein the suspending means is formed of a tubular base material.

According to another aspect of the present invention, there is provided a flexible container comprising: a container body; and a loop-shaped suspending means attached to the container body and having a hanging engaging portion. The means is formed by a composite base material comprising a flat base material and a cylindrical base material covering at least an intermediate portion of the flat base material.

[0010] Still another flexible container of the present invention for achieving the above object comprises a container main body, and a loop-shaped suspending means attached to the container main body and having a hanging engaging portion. The suspending means is formed by a composite base material including a first cylindrical base material and a second cylindrical base material covering at least an intermediate portion of the first cylindrical base material.

In each of the above structures, the suspension means
Reinforced by a reinforcing section provided in the upper part of the body of the container body in the horizontal direction, or by a reinforcing belt attached to the body of the container body in the vertical direction, or attached to the body of the container itself in the vertical direction Can be attached to the strip-shaped reinforcement part.

According to the present invention configured as described above,
When the container body is filled with contents and a fork of a forklift, a hook of a crane, etc. is engaged with an engaging portion of the suspending means and suspended, the engaging portion is cylindrical and has strong strength. In addition to being superior, the lower part side of the engaging portion can slightly escape to the upper part side with respect to the fork or the like, so that it does not contact in a tension state, and even if the fork or the like is shifted in the tension state, the lifting means The contact portion with the fork, etc. is kept in contact with the fork, etc., so that it is unlikely to be distorted with respect to the fork, etc. under tension, and the upper layer side of the engaging portion hardly rubs with the fork, etc. Hard to cut.
Also, when the flexible container is moved in a suspended state, the suspending means is hard and has an excellent strength as described above even when the flexible container is in contact with a relatively sharp angle, and the contact in a tension state is relaxed, and the That is, rubbing can be reduced,
Hard to cut.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described. FIG. 1 is a schematic perspective view showing a flexible container according to a first embodiment of the present invention, FIG. 2A is a partially enlarged plan view showing an example of a base material used for a container body of the flexible container, and FIG. ) Is a sectional view taken along the line AA in FIG. 3A, and FIGS.
Is a partially enlarged schematic perspective view showing an example of a tubular base material used for hanging means of the flexible container, a cross-sectional view,
4 to 6 are cross-sectional views showing other examples of the tubular base material used for the suspending means of the flexible container.

As shown in FIG. 1, the flexible container 1 is provided with a container body 2 and hanging means 3.
The container body 2 has an upper lid 5 attached by sewing or the like to an upper part of a rectangular cylindrical body 4, an input port 6 is attached to the upper lid 5 by sewing or the like, and a bottom lid 7 is sewn to the lower part of the body 4. The outlet 8 is attached to the bottom cover 7 by sewing or the like. Closing cords 9 and 10 are attached to the inlet 6 and the outlet 8, respectively, by sewing or the like.

The container body 2 is, for example,
It is constituted by a substrate 11 as shown in FIGS. The base material 11 is made of a synthetic resin, for example, a polyolefin-based stretched tape yarn such as polyethylene or polypropylene, and the woven fabric 14 is woven in a plain weave as the warp 12 and the weft 13. Alternatively, a synthetic resin, for example, a polyolefin-based film 15 is laminated on the film by heat sealing or the like to form a water-impermeable material (for applications where a waterproof effect is not required, the film 15 is unnecessary. Become.). As the closing cords 9, 10, a synthetic resin tape or the like is used.

The suspension means 3 shown in FIG. As an example, FIGS. 3A and 3B
As shown in FIG. 7, various synthetic fibers or polyolefin-based drawn tape yarns or flat monofilament yarns are used as warp yarns 17, and multifilament yarns are used as weft yarns 1.
8 is formed into a belt-like shape by using a power loom to form a sack (tubing) with a flat sack structure, a traverse twill sack structure, or the like. As another example of the tubular base material 16, as shown in FIG.
The weft 18 is entangled with the warp 17 along one end in the longitudinal direction by a needle loom and is sack-woven (cylindrical-woven) to be formed into a belt-like elongated shape. As another example of the tubular base material 16, as shown in FIG. 5, two plain woven fabrics 21 each composed of a warp yarn 19 and a weft yarn 20 made of the same material as described above are superimposed, and a sewing thread 22 is formed along a longitudinal edge on both sides. It is sewn and formed in a tubular and belt-like shape. As still another example of the tubular base material 16, as shown in FIG. 6, a woven fabric 21 similar to the above is folded in two along the longitudinal direction, and the sewing material 22 is used along the one-side open side in the longitudinal direction. It is sewn and formed in a tubular and belt-like shape.

Then, as shown in FIG.
Are used in a pair, and each is curved at a central portion in the longitudinal direction to form a loop-shaped hanging engaging portion 23. Both side portions of the engaging portion 23 are provided at a plurality of portions of the body portion 4, for example, the opposite side wall. It is superimposed on both sides of the outer side surface and both sides of the outer side surface of the bottom cover 7, is attached by sewing with a sewing thread 24, and a hanging engaging portion 23 can protrude above the trunk portion 4 of the container body 2. It is set as follows.

Hereinafter, the usage of the flexible container 1 configured as described above will be described. With the discharge port 8 closed by the closing cord 10, the engaging portions 23 of the pair of suspending means 3 are arranged in parallel above the container body 2 to engage with forks of a forklift, hooks of a crane, and the like. Is held in a suspended state, and powder and the like are charged into the container body 2 from the charging port 6. After the loading, the loading port 6 is closed by the closing cord 9, and the flexible container 1 is transported to a desired place for transportation, storage, etc. and lowered in a suspended state.

Further, the engaging portions 23 of the pair of suspending means 3 of the flexible container 1 filled with the granular material or the like are arranged in parallel above the container body 2 to engage with forks of a forklift, hooks of a crane, and the like. Then, the flexible container 1 is held in a suspended state, transported to a desired place, and the closing string 10 is released, so that the powder and the like can be discharged from the outlet 8.
Can be discharged from

Then, in the state where the contents are filled in the container body 2 as described above, the fork of the forklift, the hook of the crane, etc. are engaged with the engaging portions 23 of the suspending means 3 in the same manner as described above. At the time of lowering, the suspending means 3 is formed of the cylindrical base material 16 and has two layers, so that the suspending means 3 itself has excellent tear strength and hooking strength, and also has Because the lower layer side can escape a little to the upper layer side, it does not contact in tension,
Further, even if the fork or the like is shifted while the suspending means 3 is in a tension state, the suspension means 3 is twisted due to the contact portion with the fork or the like being kept in contact with the fork or the like, and the suspending means 3 is distorted with respect to the fork or the like in the tension state. It is hard to be displaced, that is, hard to rub, and the upper layer side of the engaging portion 23 hardly rubs with a fork or the like, and is hard to cut. Also, when moving the flexible container 1 in a suspended state, even if the suspending means 3 abuts against a relatively sharp corner such as a beam, a column, a concrete wall, or a bed of a truck of a hard building, as described above, It is excellent in strength, can reduce contact under tension, can reduce displacement, that is, rubbing, and it is difficult to cut. Further, since the suspending means 3 is formed by the tubular base material 16, the width can be reduced to obtain the same strength as that of the conventional flat belt-shaped base material. When lowered, the tubular base material 16 can be smoothly curved along the hooks, so that the hooking strength is excellent.

Next, a second embodiment of the present invention will be described. FIG. 7 is a schematic perspective view showing a flexible container according to a second embodiment of the present invention, and FIG. 8 is a partially enlarged schematic plan view showing a combined structure of a flat band base material and a cylindrical base material used for hanging means of the flexible container. FIG.

In this embodiment, as shown in FIG. 7, a reinforcing yarn is woven in the longitudinal direction at the seam portion of the body 4 of the container body 2 to be sewn to the suspending means 3, and a belt-like reinforcement is performed by high-density weaving or the like. Portion 25 is formed.
Alternatively, a reinforcing belt may be attached in the vertical direction by sewing or the like. ). On the other hand, as shown in FIG.
It is composed of a composite base material in which the flat base material 26 and the cylindrical base material 16 are combined. The flat band base material 26 is formed into a flat and elongated belt shape by a plain weave structure, a twill break twill weave structure, or the like using various synthetic fibers, a polyolefin-based stretched tape yarn, or a flat monofilament yarn. Long sides of both sides of the intermediate portion of the flat strip base material 26 are bent in the longitudinal direction, and are fixed in a folded state by sewing or the like as necessary. This flat strip base material 2
The intermediate portion of No. 6 is covered by being inserted into a tubular base material 16 made of sachet and the like configured in the same manner as in the first embodiment. The tubular base material 16 is prevented from falling off from the flat band-shaped base material 26 by expanding portions 27 formed at both ends of the flat band-shaped base material 26 by bending the intermediate portion. It can also be connected by the like.

Then, both ends of the flat band-shaped substrate 26 in the suspending means 3 configured as described above are attached to the band-shaped reinforcing portion 25 (or reinforcing belt) of the body 4 by sewing with a sewing thread 28, and a loop is formed. The suspending engagement portion 23 having a rectangular shape is set so as to protrude above the body portion 4. Other configurations are the same as those in the first embodiment.

In the present embodiment, the hanging engaging portion 23 is composed of a composite base material of the flat band base material 26 and the cylindrical base material 16 and has excellent tear strength. 16
Can be displaced with respect to the flat strip substrate 26,
Even if an impact is applied to the cylindrical base material 16, the shock can be absorbed, and the flat band base material 26 can be covered with the cylindrical base material 16 to prevent deterioration due to irradiation with ultraviolet light. As described above, when the fork of the forklift, the hook of the crane, or the like is engaged with the engaging portion 23 of the suspending means 3 and suspended, the suspending means 3 is further effectively prevented from being cut due to rubbing or the like. be able to.

Next, a third embodiment of the present invention will be described. FIG. 9 is a schematic perspective view showing a flexible container according to a third embodiment of the present invention.

In the present embodiment, as shown in FIG. 9, the upper part of the body 4 of the container body 2 is placed in the lateral direction (circumferential direction).
A reinforcement belt 29 is attached by sewing or the like (instead of the reinforcement belt 29, the upper part of the body 4 may be folded back to reinforce). On the other hand, as in the second embodiment, the suspending means 3 has a bent portion in the middle of the flat band-shaped base material 26 inserted through the tubular base material 16 and covered. The suspending means 3 of the present embodiment differs from the suspending means 3 of the second embodiment in that the protruding portions on both sides of the flat band base material 26 are formed long. Then, the position of the flat band-shaped base material 26 near the tubular base material 16 is attached to the reinforcing belt 29 (or the folded back portion) by sewing with a sewing thread 28, and the flat band-shaped base material 26 is further attached to the trunk 4 of the container body 2. And is attached by sewing with a sewing thread 24.

In the illustrated example, the pair of suspending means 3 are attached to adjacent side surfaces across the corner portion of the container body 2, but they are attached to the same side surface as in the second embodiment. It may be. Other configurations are the same as those in the first and second embodiments.

In this embodiment, similarly to the above-described second embodiment, the suspending engaging portion 23 is formed of a flat band-like base material 26.
In addition to being excellent in tear strength, it is possible to allow the cylindrical base material 16 to be displaced with respect to the flat band base material 26, Can be absorbed even if a shock is applied to the forklift, and furthermore, the flat band base material 26 can be covered with the cylindrical base material 16 to prevent deterioration due to irradiation with ultraviolet light. When the fork and the hook of the crane are suspended by engaging with the engaging portion 23 of the suspending means 3,
Can be further effectively prevented from being cut by rubbing or the like. Also, by attaching the suspending means 3 to the lateral reinforcing belt 29 (or the folded back portion) and extending the flat belt-like base material 26 below the reinforcing belt 29, the suspending means 3 should be used. Even when the lifting device 3 is disengaged from the fork of the forklift, the hook of the crane, or the like, the load is distributed in three directions by the reinforcing belt 29 (or the reinforcing folded portion) to which the engaging lifting device 3 is engaged, and the mounting of the lifting device 3 The burden on the department can be reduced.

Next, a fourth embodiment of the present invention will be described. FIG. 10 is a schematic perspective view showing a flexible container according to a fourth embodiment of the present invention.

In this embodiment, as shown in FIG. 10, a reinforcing belt 29 is attached to the upper part of the body 4 of the cylindrical container body 2 in the lateral direction (circumferential direction) by sewing or the like (reinforcing). Instead of the belt 29, the upper part of the body 4 may be folded back to reinforce it.) On the other hand, in the suspension means 3, the intermediate part of the first tubular base 16 is inserted through the second tubular base 16 to be reinforced. Coated. Then, the end of the second tubular base 16 and the first tubular base 16 are both attached to a reinforcing belt 29 or the like by sewing with a sewing thread 28. The sewing thread 24 is superimposed on the side and bottom of the portion 4.
It is attached by sewing. Other configurations are the same as those of the first to third embodiments.

In the present embodiment, the hanging engaging portion 23 is made of a composite base material of the first cylindrical base material 16 and the second cylindrical base material 16 and has excellent tear strength. In addition, it is possible to allow the second cylindrical base material 16 to be displaced with respect to the first cylindrical base material 16, and to absorb even if an impact is applied to the cylindrical base material 16, In addition, since the first tubular base 16 is covered with the second tubular base 16 to prevent deterioration due to the irradiation of ultraviolet rays, the fork of the forklift, the hook of the crane, and the like are suspended as described above. It is possible to further effectively prevent the suspension means 3 from being cut due to rubbing or the like when the suspension means 3 is suspended by being engaged with the engagement portion 23 of the means 3. In addition, the lateral reinforcing belt 29
And the like, and the first cylindrical substrate 1
6 is extended downward to the reinforcing belt 29 or the like, so that even if one of the suspension means 3 is disengaged from a fork of a forklift, a hook of a crane, or the like, the engaged suspension means 3 is attached. The load can be dispersed in three directions by the reinforcing belt 29 and the like, and the load on the mounting portion of the suspension means 3 can be reduced.

In each of the above embodiments, the case where the suspending means 3 is sewn to the container body 2 has been described. However, the suspending means 3 is sewn to the patch cloth, and the patch cloth is adhered to the container body 2. Or a combination of adhesion and sewing may be used. Further, the inlet 6 and the outlet 8 may be shared. Further, the configurations of the above embodiments may be appropriately combined. In addition, the present invention can be variously changed in design without departing from the basic technical idea.

[0033]

As described above, according to the present invention, when a container body is filled with contents, a fork of a forklift, a hook of a crane or the like is engaged with the engaging portion of the suspending means to suspend the container. When lowered, this engaging portion has a cylindrical shape and is itself excellent in strength. In addition, the lower layer side of the engaging portion can slightly escape to the upper layer side with respect to a fork etc. Also, even if the fork or the like is displaced in a tension state, the suspension means is twisted because the contact portion with the fork or the like is kept in contact with the fork or the like. Moreover, the upper layer side of the engaging portion hardly rubs against the fork or the like, and is hard to cut. Also, when moving the flexible container in a suspended state, the suspending means is hard, even in contact with a relatively sharp angle, similarly to the above, has excellent strength, relaxes the contact in tension,
Displacement, that is, rubbing can be reduced, and cutting is difficult. Therefore, it is possible to improve the safety and prevent the accident of dropping the container body, that is, the work accident.

The engaging portion of the suspending means is formed of a flat base material and a tubular base material covering the outside thereof, or a first tubular base material and a second tubular base material covering the outside thereof. By having a multilayer structure, it is possible to allow the outer tubular base material to be displaced with respect to the inner flat band base material or the tubular base material. Together, it becomes even more difficult to cut.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a flexible container according to a first embodiment of the present invention.

FIG. 2A is a partially enlarged plan view showing an example of a base material used for a container body of the flexible container, and FIG. 2B is a cross-sectional view taken along line AA in FIG.

FIGS. 3 (a) and 3 (b) are a partially enlarged schematic perspective view and a cross-sectional view, respectively, showing an example of a tubular base material used for hanging means of the flexible container.

FIG. 4 is a cross-sectional view showing another example of a tubular base material used for hanging means of the flexible container.

FIG. 5 is a cross-sectional view showing another example of a tubular base material used for hanging means of the flexible container.

FIG. 6 is a cross-sectional view showing still another example of a tubular base material used for hanging means of the flexible container.

FIG. 7 is a schematic perspective view showing a flexible container according to a second embodiment of the present invention.

FIG. 8 is a partially enlarged schematic plan view showing a combination structure of a flat strip-shaped base material and a cylindrical base material used for hanging means of the flexible container.

FIG. 9 is a schematic perspective view showing a flexible container according to a third embodiment of the present invention.

FIG. 10 is a schematic perspective view showing a flexible container according to a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flexible container 2 Container main body 3 Hanging means 4 Trunk part 16 Cylindrical base material 23 Engagement part 25 Band-shaped reinforcement part 26 Flat band-shaped base material 29 Reinforcement belt

Claims (5)

[Claims] 1. A flexible container comprising: a container body; and a loop-shaped suspending means attached to the container body and having a suspending engagement portion, wherein the suspending means is formed of a tubular base material. 2. A container comprising: a container body; and a loop-shaped suspending means attached to the container body and having a suspending engaging portion, wherein the suspending means comprises a flat band-shaped base material and the flat band-shaped base material. A flexible container formed of a composite base material comprising a cylindrical base material having at least an intermediate portion covered. 3. A container body, and a loop-shaped hanging means attached to the container body and having a hanging engaging portion, wherein the hanging means comprises a first tubular base material,
A second tubular member covering at least the intermediate portion of the first tubular substrate
A flexible container formed of a composite substrate with a cylindrical substrate. 4. The flexible container according to claim 1, wherein the hanging means is reinforced by a reinforcing portion provided on a body of the container body. 5. The flexible container according to claim 1, wherein the suspending means is attached to a band-shaped reinforcing portion formed in a longitudinal direction on the body of the container body.