CA2709436A1 - Interior bag for a container - Google Patents
Interior bag for a container Download PDFInfo
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- CA2709436A1 CA2709436A1 CA 2709436 CA2709436A CA2709436A1 CA 2709436 A1 CA2709436 A1 CA 2709436A1 CA 2709436 CA2709436 CA 2709436 CA 2709436 A CA2709436 A CA 2709436A CA 2709436 A1 CA2709436 A1 CA 2709436A1
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- side element
- rear side
- reinforcing sheet
- container
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Abstract
An interior bag having a reinforcing sheet 14 suspended along a rear side element 2d and retained by supporting bars 15 can easily be set within a container 3 in safety while being effectively prevented from twisting or wrinkling possibly caused due to the burden of cargo loaded into the bag body 2. The bag has four-layered reinforced portions 31 formed by folding the edge portions of side elements constituting the bag body 2 into four layers at corner edge portions to enhance the strength of the bag. The bag is held within the container in a suspending state through the medium of holders 30 movably attached to the four-layered reinforced portions 31 of the bag body 2, thereby to absorb distortion of the bag caused accidentally when loading cargo into the bag.
Description
TITLE OF THE INVENTION
INTERIOR BAG FOR A CONTAINER
TECHNICAL FIELD
This invention relates to an interior bag for a container, which is useful for transporting all kinds of granulated or powdery goods such as cereal with a general shipping container.
BACKGROUND OF THE ART
The general shipping container for transportation of cereal grain has been widely known. The general-purpose shipping container of large size capable of dealing with a great deal of cargo and being piled one on top of another is suitable particularly for ocean transportation of a=great deal of cereal.
The transportation using the general-purpose container can be inclined with a tilt mechanism to enable prompt operation to load and unload cargo with high working efficiency. With the use of container bag installed inside the container, the direct loading and unloading of the cargo such as the cereal can be carried out while protecting the cargo in a hygienic way. So the container using the interior bag is becoming essential to current cargo transportation.
Thus, the interior bag for the container is indispensable for container transportation of cargo such as cereal, but it has one problem such that heavy granular cargo such as of cereal, which is loaded inside the interior bag held in the container, disadvantageously bulges out from a rear opening of the container to possibly interfere with opening and closing operation for rear doors of the container.
As a measure of resolving the aforementioned problem, one of the inventors of the present invention described herein has ever developed an innovative interior bag for a container for practical use, as described in Canadian Patent No. 2007045. This container interior bag can diminish the number of supporting bars mounted across the rear opening of the container while effectively preventing the rear side element of the container interior bag from bulging backward with inner pressure due to the weight of the cargo.
The conventional container interior bag thus proposed is formed in a rectangular solid shape to fit the internal configuration of the container and has an auxiliary tension sheet suspending from the substantial midpoint of the height of the rear side element of the bag. The auxiliary tension sheet is secured at its top part with one horizontal supporting bar and at its middle part with another horizontal supporting bar and has its lower part tucked into between the bottom of the bag and the bottom of the container so as to render the lower part incapable of dislocating therefrom due to the burden of the cargo contained in the container, consequently to keep a firm hold on the rear side element.
The container interior bag having the rear side element reinforced by the auxiliary tension sheet in cooperation with the supporting bars has the advantage of being able to load and unload the cargo easily and conveniently, but suffers from one disadvantage of being complicated in formation, consequently to increase the cost of producing the bag.
Further, the conventional bag of this kind is not exclusively for cereals, thus to be far from being waterproof, and therefore, has a problem of making the cargo dirty, foul or unsanitary disadvantageously. Also, since the bag is produced by sewing heavyweight and rigid cloth by using a thick sewing needle, needle holes resultantly formed cause diminish waterproof and airtight properties of the bag. Besides, as the conventional bag was produced by sewing pieces of cloth, it cannot have adequate strength to possibly cause the seam joint to be ruptured when loading the cargo into the bag provided inside the container or hauling the cargo. The sewing of the heavyweight and rigid cloth with tough textile thread to produce the bag capable of sufficiently enduring harsh usage is an extremely troubling laborious task. Therefore, there has been a great need for a tough container interior bag having an adequate strength and capable of being produced by a simple sewing work.
The granular cargo such as cereal is loaded into the bag inside the container through a cargo loading opening formed in the upper part of the rear surface of the bag by using a hopper. When loading the cargo into the large-size container, the container is tilted by raising the back part of the container so as to loading the cargo into the container within a short time, consequently to increase the efficiency of loading.
However, if the cargo is loaded precipitously into the container tilted forwardly, the container interior bag is disadvantageously deformed and displaced to be distorted to cause twisting and wrinkling in whole.
To prevent the dislocation of the bag inside the container, there has been taken measures of attaching hanging bands and hanging rings to corners or inner walls inside the container so as to suspend the bag in position. However, even this way cannot thoroughly prevent the twisting and wrinkling of the bag, which are caused by loading the cargo into the bag within the tilted container.
The twisting and wrinkling occur notably between the aforementioned auxiliary tension sheet and the rear side element of the container interior bag, involving deformation of the bag due to the burden of the cargo to cause the seam joint of the bag to be broken and/or the cargo to leak from a hopper for letting the cargo into the container, consequently to pose a problem of rendering the bag incapable of reuse.
OBJECT OF THE INVENTION
To solve the problems described above, it is an object of the present invention to provide an interior bag for a container, which enables easy and safe loading, unloading and storage of cargo such as the cereal and is capable of being fitted into the container, handled and maintained easily and conveniently.
Another object of the invention is to provide an interior bag for a container, which can lessen backward bulging of the rear side element of the container interior bag, caused due to the burden of the cargo stored in the container, so that opening and closing of rear doors of the container can easily be performed in safety.
Still another object of the invention is to provide an interior bag for a container, having an auxiliary tension sheet attached detachably to the rear side of the bag for lessening backward bulging of the rear side element of the bag, which is caused due to the burden of the cargo stored in the container.
Yet another object of the invention is to provide an interior bag for a container, in which sheet joints of right and left side elements, upper side element, front side element, bottom side element and rear side element of the bag are strongly formed so as to sufficiently withstand even intense loading and unloading of cargo to be stored within the container and ensure excellent waterproof and airtight performance for protecting the cargo in safety from rain water, grit and dust.
Further object of the invention is to provide a container interior bag capable of being produced effectively at a low cost SUMMARY OF THE INVENTION
To attain the objects described above according to the present invention, there is provided an interior bag for a container, comprising a bag body made by splicing right and left side elements, upper side element, front side element, bottom side element and rear side element having a cargo loading opening into a shape to fit an internal configuration of the container, and a reinforcing sheet suspending from underneath the cargo loading opening along the rear side element, which reinforcing sheet is attached detachably to the rear side element of the bag body through a joint portion.
The container interior bag according to the invention is characterized in that the reinforcing sheet has the upper end portion fixedly supported by a support bar at a fixing position of the middle of the rear side element of the bag so as to allow the upper end portion to freely move within a prescribed range, thereby to absorb distortion caused between the reinforcing sheet and the joint portion due to displacement of the rear side element when loading cargo into the bag.
Further, the container interior bag according to the invention is characterized in that the rear side element is formed of a rear sheet having the cargo loading opening covered with an openable and closable flap sheet.
Further, the container interior bag according to the invention is characterized in that the rear side element is provided with a rear opening for letting the cargo into the bag, which rear opening is covered openably by a cover sheet Further, the container interior bag according to the invention is characterized in that the rear side element is formed of a cover sheet with a rear opening for letting the cargo into the bag and a rear sheet for openably covering the rear opening having a cargo loading opening.
Further, the container interior bag according to the invention is characterized in that the right and left side elements, upper side element, front side element, bottom side element and rear side element of the bag body are brought into overlapped face contact with and joined at their opposed edges with each other by heat welding.
Further, the container interior bag according to the invention is characterized in that the right and left side elements, upper side element, front side element and bottom side element are joined with each other at their opposed edges in the state of folding the joint surfaces of the respective edge parts in four layers to form four-layered reinforced joints along the abutting joint edges.
Further, the container interior bag according to the invention is characterized by slidably mounting holders for holding hanging members or fixing connectors on thick reinforced portions formed along the reinforced joints so as to freely move the hanging members or fixing connectors to arbitrary positions along the reinforced portions.
Further, the container interior bag according to the invention is characterized by 5 slidably mounting holders for holding hanging members or fixing connectors on thick reinforced portions formed along the reinforced joints and the hanging members or fixing connectors to be hooked on locking rings.
Further, the container interior bag according to the invention is characterized in that upper and lower subsidiary rear sheets are formed extending from the respective rear ends of the upper and bottom side elements and have right and left edges joined to the rear ends of the right and left side elements so as to confront the rear side elements.
Further, the container interior bag according to the invention is characterized in that the reinforcing sheet is detachably attached to the rear side element of the bag body.
Further, the container interior bag according to the invention is characterized in that the thick reinforced joint incorporates a bracing core along the longitudinal direction to form a thick reinforced portion.
Further, the container interior bag according to the invention is characterized in that the reinforced joint formed along the right and left edge parts of the upper side element has through holes bored in the front end and rear end thereof to retain the hanging members at the through holes.
Further, the container interior bag according to the invention is characterized in that the reinforced joint formed along the right and left edge parts of the bottom side element has through holes bored in the front end and. rear end thereof to retain the fixing connectors at the through holes.
According to the container interior bag of the invention, backward bulging of the rear side element of the bag body, which is caused due to the burden of the cargo contained in the container, can be appreciably prevented to facilitate opening and closing operation of the rear doors of the container, so that loading and unloading of cargo such as the cereal can easily be carried out in safe. Furthermore, the auxiliary tension sheet attached detachably to the container interior bag brings about a desirable effect of facilitating installation, handling and maintenance of the bag.
Specifically in a case of possibly causing twisting or wrinkling of the container interior in loading or unloading cargo with respect to the bag, the container interior bag of the invention makes it possible to absorb distortion caused between the reinforcing sheet and the joint portion due to displacement of the rear side element and prevent the supporting bar from being deformed due to undesirable burden imposed on the bag by means of the reinforcing sheet having its upper end portion freely movable relative to the fixing position of the rear side element of the bag body.
Moreover, since the auxiliary tension sheet of the container interior bag according to the invention is attached detachably to the bag body, the bag can easily be produced with high efficiency and made reusable to reduce the production cost of the bag.
Further, the container interior bag of the invention has the reinforced joints of four-layered structure formed by folding and joining the joint surfaces of the respective edge parts of the right and left side elements, upper side element, front side element and bottom side element in four layers, so that the joint surface portions of the bag body can be made tough, robust and strong so as to sufficiently withstand even intense loading and unloading of cargo to be stored within the container.
Further advantages and specific details of the invention will be set forth hereinafter in conjunction with the following detailed description of a presently preferred embodiment.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG 1 is a partially cutaway perspective view showing an interior bag for a container of the present invention.
FIG 2 is a longitudinally exploded sectional view showing the principal portion of the bag of the invention.
FIG 3 is an exploded perspective view showing the principal portion of the bag of the invention.
FIG 4 is a longitudinal sectional side view showing the principal portion before mounting supporting bars in the bag of the invention.
FIG 5 is a perspective view illustrative of the bag fitted inside a container.
FIG 6 is a longitudinal sectional side view illustrative of the principal portion of the bag in use according to the invention.
INTERIOR BAG FOR A CONTAINER
TECHNICAL FIELD
This invention relates to an interior bag for a container, which is useful for transporting all kinds of granulated or powdery goods such as cereal with a general shipping container.
BACKGROUND OF THE ART
The general shipping container for transportation of cereal grain has been widely known. The general-purpose shipping container of large size capable of dealing with a great deal of cargo and being piled one on top of another is suitable particularly for ocean transportation of a=great deal of cereal.
The transportation using the general-purpose container can be inclined with a tilt mechanism to enable prompt operation to load and unload cargo with high working efficiency. With the use of container bag installed inside the container, the direct loading and unloading of the cargo such as the cereal can be carried out while protecting the cargo in a hygienic way. So the container using the interior bag is becoming essential to current cargo transportation.
Thus, the interior bag for the container is indispensable for container transportation of cargo such as cereal, but it has one problem such that heavy granular cargo such as of cereal, which is loaded inside the interior bag held in the container, disadvantageously bulges out from a rear opening of the container to possibly interfere with opening and closing operation for rear doors of the container.
As a measure of resolving the aforementioned problem, one of the inventors of the present invention described herein has ever developed an innovative interior bag for a container for practical use, as described in Canadian Patent No. 2007045. This container interior bag can diminish the number of supporting bars mounted across the rear opening of the container while effectively preventing the rear side element of the container interior bag from bulging backward with inner pressure due to the weight of the cargo.
The conventional container interior bag thus proposed is formed in a rectangular solid shape to fit the internal configuration of the container and has an auxiliary tension sheet suspending from the substantial midpoint of the height of the rear side element of the bag. The auxiliary tension sheet is secured at its top part with one horizontal supporting bar and at its middle part with another horizontal supporting bar and has its lower part tucked into between the bottom of the bag and the bottom of the container so as to render the lower part incapable of dislocating therefrom due to the burden of the cargo contained in the container, consequently to keep a firm hold on the rear side element.
The container interior bag having the rear side element reinforced by the auxiliary tension sheet in cooperation with the supporting bars has the advantage of being able to load and unload the cargo easily and conveniently, but suffers from one disadvantage of being complicated in formation, consequently to increase the cost of producing the bag.
Further, the conventional bag of this kind is not exclusively for cereals, thus to be far from being waterproof, and therefore, has a problem of making the cargo dirty, foul or unsanitary disadvantageously. Also, since the bag is produced by sewing heavyweight and rigid cloth by using a thick sewing needle, needle holes resultantly formed cause diminish waterproof and airtight properties of the bag. Besides, as the conventional bag was produced by sewing pieces of cloth, it cannot have adequate strength to possibly cause the seam joint to be ruptured when loading the cargo into the bag provided inside the container or hauling the cargo. The sewing of the heavyweight and rigid cloth with tough textile thread to produce the bag capable of sufficiently enduring harsh usage is an extremely troubling laborious task. Therefore, there has been a great need for a tough container interior bag having an adequate strength and capable of being produced by a simple sewing work.
The granular cargo such as cereal is loaded into the bag inside the container through a cargo loading opening formed in the upper part of the rear surface of the bag by using a hopper. When loading the cargo into the large-size container, the container is tilted by raising the back part of the container so as to loading the cargo into the container within a short time, consequently to increase the efficiency of loading.
However, if the cargo is loaded precipitously into the container tilted forwardly, the container interior bag is disadvantageously deformed and displaced to be distorted to cause twisting and wrinkling in whole.
To prevent the dislocation of the bag inside the container, there has been taken measures of attaching hanging bands and hanging rings to corners or inner walls inside the container so as to suspend the bag in position. However, even this way cannot thoroughly prevent the twisting and wrinkling of the bag, which are caused by loading the cargo into the bag within the tilted container.
The twisting and wrinkling occur notably between the aforementioned auxiliary tension sheet and the rear side element of the container interior bag, involving deformation of the bag due to the burden of the cargo to cause the seam joint of the bag to be broken and/or the cargo to leak from a hopper for letting the cargo into the container, consequently to pose a problem of rendering the bag incapable of reuse.
OBJECT OF THE INVENTION
To solve the problems described above, it is an object of the present invention to provide an interior bag for a container, which enables easy and safe loading, unloading and storage of cargo such as the cereal and is capable of being fitted into the container, handled and maintained easily and conveniently.
Another object of the invention is to provide an interior bag for a container, which can lessen backward bulging of the rear side element of the container interior bag, caused due to the burden of the cargo stored in the container, so that opening and closing of rear doors of the container can easily be performed in safety.
Still another object of the invention is to provide an interior bag for a container, having an auxiliary tension sheet attached detachably to the rear side of the bag for lessening backward bulging of the rear side element of the bag, which is caused due to the burden of the cargo stored in the container.
Yet another object of the invention is to provide an interior bag for a container, in which sheet joints of right and left side elements, upper side element, front side element, bottom side element and rear side element of the bag are strongly formed so as to sufficiently withstand even intense loading and unloading of cargo to be stored within the container and ensure excellent waterproof and airtight performance for protecting the cargo in safety from rain water, grit and dust.
Further object of the invention is to provide a container interior bag capable of being produced effectively at a low cost SUMMARY OF THE INVENTION
To attain the objects described above according to the present invention, there is provided an interior bag for a container, comprising a bag body made by splicing right and left side elements, upper side element, front side element, bottom side element and rear side element having a cargo loading opening into a shape to fit an internal configuration of the container, and a reinforcing sheet suspending from underneath the cargo loading opening along the rear side element, which reinforcing sheet is attached detachably to the rear side element of the bag body through a joint portion.
The container interior bag according to the invention is characterized in that the reinforcing sheet has the upper end portion fixedly supported by a support bar at a fixing position of the middle of the rear side element of the bag so as to allow the upper end portion to freely move within a prescribed range, thereby to absorb distortion caused between the reinforcing sheet and the joint portion due to displacement of the rear side element when loading cargo into the bag.
Further, the container interior bag according to the invention is characterized in that the rear side element is formed of a rear sheet having the cargo loading opening covered with an openable and closable flap sheet.
Further, the container interior bag according to the invention is characterized in that the rear side element is provided with a rear opening for letting the cargo into the bag, which rear opening is covered openably by a cover sheet Further, the container interior bag according to the invention is characterized in that the rear side element is formed of a cover sheet with a rear opening for letting the cargo into the bag and a rear sheet for openably covering the rear opening having a cargo loading opening.
Further, the container interior bag according to the invention is characterized in that the right and left side elements, upper side element, front side element, bottom side element and rear side element of the bag body are brought into overlapped face contact with and joined at their opposed edges with each other by heat welding.
Further, the container interior bag according to the invention is characterized in that the right and left side elements, upper side element, front side element and bottom side element are joined with each other at their opposed edges in the state of folding the joint surfaces of the respective edge parts in four layers to form four-layered reinforced joints along the abutting joint edges.
Further, the container interior bag according to the invention is characterized by slidably mounting holders for holding hanging members or fixing connectors on thick reinforced portions formed along the reinforced joints so as to freely move the hanging members or fixing connectors to arbitrary positions along the reinforced portions.
Further, the container interior bag according to the invention is characterized by 5 slidably mounting holders for holding hanging members or fixing connectors on thick reinforced portions formed along the reinforced joints and the hanging members or fixing connectors to be hooked on locking rings.
Further, the container interior bag according to the invention is characterized in that upper and lower subsidiary rear sheets are formed extending from the respective rear ends of the upper and bottom side elements and have right and left edges joined to the rear ends of the right and left side elements so as to confront the rear side elements.
Further, the container interior bag according to the invention is characterized in that the reinforcing sheet is detachably attached to the rear side element of the bag body.
Further, the container interior bag according to the invention is characterized in that the thick reinforced joint incorporates a bracing core along the longitudinal direction to form a thick reinforced portion.
Further, the container interior bag according to the invention is characterized in that the reinforced joint formed along the right and left edge parts of the upper side element has through holes bored in the front end and rear end thereof to retain the hanging members at the through holes.
Further, the container interior bag according to the invention is characterized in that the reinforced joint formed along the right and left edge parts of the bottom side element has through holes bored in the front end and. rear end thereof to retain the fixing connectors at the through holes.
According to the container interior bag of the invention, backward bulging of the rear side element of the bag body, which is caused due to the burden of the cargo contained in the container, can be appreciably prevented to facilitate opening and closing operation of the rear doors of the container, so that loading and unloading of cargo such as the cereal can easily be carried out in safe. Furthermore, the auxiliary tension sheet attached detachably to the container interior bag brings about a desirable effect of facilitating installation, handling and maintenance of the bag.
Specifically in a case of possibly causing twisting or wrinkling of the container interior in loading or unloading cargo with respect to the bag, the container interior bag of the invention makes it possible to absorb distortion caused between the reinforcing sheet and the joint portion due to displacement of the rear side element and prevent the supporting bar from being deformed due to undesirable burden imposed on the bag by means of the reinforcing sheet having its upper end portion freely movable relative to the fixing position of the rear side element of the bag body.
Moreover, since the auxiliary tension sheet of the container interior bag according to the invention is attached detachably to the bag body, the bag can easily be produced with high efficiency and made reusable to reduce the production cost of the bag.
Further, the container interior bag of the invention has the reinforced joints of four-layered structure formed by folding and joining the joint surfaces of the respective edge parts of the right and left side elements, upper side element, front side element and bottom side element in four layers, so that the joint surface portions of the bag body can be made tough, robust and strong so as to sufficiently withstand even intense loading and unloading of cargo to be stored within the container.
Further advantages and specific details of the invention will be set forth hereinafter in conjunction with the following detailed description of a presently preferred embodiment.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG 1 is a partially cutaway perspective view showing an interior bag for a container of the present invention.
FIG 2 is a longitudinally exploded sectional view showing the principal portion of the bag of the invention.
FIG 3 is an exploded perspective view showing the principal portion of the bag of the invention.
FIG 4 is a longitudinal sectional side view showing the principal portion before mounting supporting bars in the bag of the invention.
FIG 5 is a perspective view illustrative of the bag fitted inside a container.
FIG 6 is a longitudinal sectional side view illustrative of the principal portion of the bag in use according to the invention.
FIG. 7 is a partially cutaway perspective view showing the container interior bag in another embodiment of the invention.
FIG. 8 is an exploded perspective view showing the container interior bag shown in FIG. 7.
FIG. 9 is an exploded longitudinal sectional side view showing in part the rear part of the bag of FIG. 7.
FIG. 10 is a partially cutaway perspective view showing in part the rear part of the bag of FIG 7.
FIG. 11 is a partially enlarged perspective view showing one part of the bag body according to the invention.
FIG. 12 is a partially enlarged longitudinal sectional side view illustrative of the suspended state of the bag in the container according to the invention.
FIG. 13 is a partially enlarged view illustrative of the state of mounting a hanging member onto a reinforced edge part of the bag according to the invention.
FIG. 14 is an exploded perspective view showing the relation between a thick reinforced portion of a reinforced joint and a holder in the bag according to the invention.
FIGS. 15(A) through 15(C) are partially longitudinal sectional side views illustrative of the action of the reinforced joint against an external force in the container interior bag according to the invention.
DETAILED DESCRIPTION OF THE INVENTION
One prefer ed embodiment of the present invention will be described hereinafter with reference to the accompanying drawings.
Referring to FIGS. 1 through 6 illustrating the first embodiment of the invention, a container interior bag I comprises a bag body 2 formed in a rectangular solid shape to fit the internal configuration of a general container 3. The bag body 2 has an upper side element 2a with four corners. At arbitrary positions of the side edge parts 4 extending between the front and rear corners, there are disposed hanging members 5 for hanging the bag body 2 inside the container 3. Similarly, at arbitrary positions of the side edge parts 6 extending between the front and rear corners of an bottom side element 2b, there are disposed connecting strings 7 for fixing the bottom side element 2b inside the container 3.
FIG. 8 is an exploded perspective view showing the container interior bag shown in FIG. 7.
FIG. 9 is an exploded longitudinal sectional side view showing in part the rear part of the bag of FIG. 7.
FIG. 10 is a partially cutaway perspective view showing in part the rear part of the bag of FIG 7.
FIG. 11 is a partially enlarged perspective view showing one part of the bag body according to the invention.
FIG. 12 is a partially enlarged longitudinal sectional side view illustrative of the suspended state of the bag in the container according to the invention.
FIG. 13 is a partially enlarged view illustrative of the state of mounting a hanging member onto a reinforced edge part of the bag according to the invention.
FIG. 14 is an exploded perspective view showing the relation between a thick reinforced portion of a reinforced joint and a holder in the bag according to the invention.
FIGS. 15(A) through 15(C) are partially longitudinal sectional side views illustrative of the action of the reinforced joint against an external force in the container interior bag according to the invention.
DETAILED DESCRIPTION OF THE INVENTION
One prefer ed embodiment of the present invention will be described hereinafter with reference to the accompanying drawings.
Referring to FIGS. 1 through 6 illustrating the first embodiment of the invention, a container interior bag I comprises a bag body 2 formed in a rectangular solid shape to fit the internal configuration of a general container 3. The bag body 2 has an upper side element 2a with four corners. At arbitrary positions of the side edge parts 4 extending between the front and rear corners, there are disposed hanging members 5 for hanging the bag body 2 inside the container 3. Similarly, at arbitrary positions of the side edge parts 6 extending between the front and rear corners of an bottom side element 2b, there are disposed connecting strings 7 for fixing the bottom side element 2b inside the container 3.
The container interior bag 1 is useful for transporting and storing various cargos such as cereals and can be folded into a flat shape of small size when not in use. When used, the folded bag body 2 is first spread from the front side element 2c, and then, foremost hanging members 5 disposed on the front confers of the upper side element 2a are hooked on locking rings 34 fixed on the inner corners of the ceiling 3a of the container 3 in order from the front hanging member. Next, while keeping the front side element 2c close to the front inner wall of the container, the bag body is spread sterically so as to pull the rear side element 2d backward, and then, remaining hanging members 5 disposed on the comers of the upper side element 2a are hooked on the other locking rings 34 fixed on the ceiling 3a of the container 3. Finally, connecting strings 7 attached to the corners of the bottom side element 2b of the bag body 2 are fastened to hanging members (not shown) disposed on the corners of the bottom of the container 3, thus to settle the bag body 2 within the container 3.
That is, with the hanging members 5 and connecting strings 7 fastened to the hanging members fixed on the upper and lower corners inside the container 3, the bag body 2 is steadily retained in the container 3 entirely in the spatially spread state while keeping the front side element 2c of the bag close to the front inner wall of the container 3, the right and left side elements 2e and 2f of the bag close to the side inner walls of the container 3 and the bottom side element 2b close to the bottom of the container.
In the installed state of the interior bag in the container, the rear side element 2d of the bag body 2, which confronts the rear opening 8 of the container 3, is suspended within the rear opening 8. The rear side element 2d of the bag body 2 has a cargo loading opening 9 formed in the upper half thereof for loading the cargo into the bag, as shown in the drawings. The cargo loading opening 9 is covered with a flap sheet 10 having its lower end part united with the lower rim of the cargo loading opening 9 so as to be openable outward about the lower end part as a hinge. The flap sheet 10 is shut by locking a slide fastener 12 by sliding a sliding tab 11 so as to freely open and close the cargo loading opening 9.
The rear side element 2d is provided at the midpoint of height with a retaining member 13 horizontally extending substantially across the overall width of the element 2d. Through the retaining member 13, the reinforcing sheet 14 is joined in the suspended state to the rear side element 2d of the bag body 2.
The reinforcing sheet 14 for reinforcing the rear side element 2dhas a width substantially equal to that of the rear side element 2d and a longitudinal length to hang down below the lower end of the rear side element 2d. The reinforcing sheet 14 is provided at the two portions of height, one near the top part 14a and the other at the middle part with relation to the overall height of the sheet 14, with tubelike bar retaining members 16 and 17 through which the supporting bars 15 are inserted.
As shown in FIG 3, the reinforcing sheet 14 has grommets 18 aligned transversely at prescribed intervals in the top part 14a thereof and connection bands 19 caught in the grommets 18, and correspondingly, the retaining member 13 is also provided with the same number of grommets 20 catching connection bands 21 so as to tie up the connection bands 21 on the connection bands 21, thereby to connect the reinforcing sheet 14 with the rear side element 2d.
Although this embodiment is illustrated as using four pairs of the grommets 18 and and the connection bands 19 and 21, the number of such grommets and connection bands is not specifically limited. That is, the invention does not contemplate imposing 15 any limitation on not only the number of the grommets and connection bands, but also the material of these components. Namely, the grommets and connection bands may be made of any materials such as metal and plastic.
The connection bands 19 and 21 each have a length enough for being tied together to serve as connecting means for ultimately connecting the reinforcing sheet 14 to the 20 rear side element 2d of the bag body and arranged in a plural manner widthwise at prescribed intervals.
Incidentally, this embodiment employs the grommets and connection bands as illustrated in FIG 3, but tough cloth bands or cords may be sewn, thermo-welded or firmly attached by any other ways directly to the retaining member 13 and/or reinforcing sheet 14 instead of the grommets 18 and/or 20 and the connection bands 19 and/or 21. As substitute for the connection bands 19 and 21, a fastening tape consisting of minute hooks and uncut piles may of course be used to facilitate connection and disconnection of the reinforcing sheet 14 relative to the rear side element 2d. As an alternative, it is optional to provided one of the rear side element 2d and reinforcing sheet 14a with connection bands or hooks and the other with engaging loops or rings.
What matters is that the reinforcing sheet 14 is attached to the rear side element 2d of the bag body 2 securely but movably within a prescribed permissible range so as not to be kept in a fixed position in a unified manner with the rear side element 2d, so that the reinforcing sheet 14 can be freely placed at arbitrary position relative to the rear side element 2d while being kept in position. Thus, the connection bands 19 and 21 do not 5 always have to be made of elastic material.
To be specific, the structure for connecting the reinforcing sheet 14 to the rear side element 2d of the bag body through the retaining member 13 is employed in the illustrated embodiment of the invention for the purpose of enhancing the connecting strength of the connection bands 21 relative to the rear side element 2d and making 10 fabrication of the bag easy. From this respective, the connection band 21 may be attached directly to the reinforcing sheet 14 without using the retaining member 13.
As an alternative to a single sheet of retaining member 13 illustrated in FIG
3, a plurality of strips may be used as the retaining member 13 so as to be connected to the respective connection bands 19 or directly to the top part 14a of the reinforcing sheet 14.
The reinforcing sheet 14 is joined to the rear side element 2d of the bag body through the connection bands 19 and 21 as described above, and when not in use, it is folded in the state attached to the rear side element 2d. When in use, the reinforcing sheet 14 is spread with the rear side element 2d and suspended as shown in FIG
4, so as to be inserted into between the bottom side element 2b of the bag body land the bottom 3b of the container 3.
In this state, the rear side element 2d of the bag body is hung from the rear corners of the ceiling 3a of the container 3 by means of the locking ring 34 to close the rear opening 8 of the container 3 entirely. The reinforcing sheet 14 is hung down along the rear side element 2d.
The reinforcing sheet 14 thus hung along the rear side element 2d is supported by the supporting bars 15 as shown in FIG 5.
The supporting bars 15 inserted through the bar retaining members 16 and 17 have both ends supported by engaging grooves 23 formed vertically in the right and left inner walls 3c of the container 3. The upper supporting bar 15 is hung from the ceiling 3a by means of hanging belts 24 and hanging rings 25 to keep the reinforcing sheet 14 at a prescribed position in conjunction with the lower supporting bar 15.
The rear side element 2d is securely supported by the reinforcing sheet 14 thus supported by the supporting bars 15 and having its lower part inserted into between the bottoms 2b and 3b of the bag body and the container.
As one example, the loading of the cargo such as cereals is performed by first opening the rear double doors 26 for closing the rear opening 8 of the container 3, tilting the container 3 by lifting the rear of the container 3 at a prescribed angle (about 45 degree) and introducing the cargo into inside the bag body 2 in the tilted container 3 by using a hopper inserted into a cargo loading opening 9 unclosed by opening the flap sheet 10.
In the drawings, 28 denotes a cover sheet openably closing entirely the cargo loading opening 9 in the rear side element 2d. When loading the cargo into the container inner bag, the cover sheet 28 is rolled up above the rear part of the ceiling 3a of the container 3, as shown by a chain line in FIG 4, so as not to allow the cargo discharged from the hopper to enter into the space between the bag body 2 and the container ceiling 3a or between the right and left side elements 2e and 2f of the bag body 2 and the side walls 3c of the container 3. Consequently, effective prevention of contamination of the container and efficient and speedy unloading of the cargo can be expected.
As shown in FIG 6 illustrative of the rear doors 26 of the container 3 in the closed state after loading the cargo into the container interior bag, the cargo GL
such as cereals introduced into the bag presses against the inner walls of the container 3 with pressure of the burden of the cargo, which is exerted on the bottom side element 2b, front side element 2c and right and left side elements 2e and 2f in sequence, so that the lower part 14c of the reinforcing sheet 14 inserted into between the bottoms of the bag body 2 and container 3 is inextrictable caught firmly in between the bottoms with the pressure caused by the heavyweight cargo.
The heavyweight cargo GL further presses forcibly against the rear side element 2d of the bag body 2 to cause the rear side element 2d to bulge backward, but the bulging of the rear side element 2d is prevented by the reinforcing sheet 14.
FIG 6 illustrates the state of preventing the bulging of the rear side element 2d by the tension action of the reinforcing sheet 14. Thus, the rear doors of the container 3 can be opened and closed without being distracted by the bulging of the rear side element 2d caused by the burden of the cargo loaded into the bag. Beside, the rear doors of the container 3 are less affected by the heavyweight cargo loaded in the bag owing to the supporting bars 15 even during transport of the cargo.
Meanwhile, the conventional container interior bag as described in the aforementioned Canadian Patent has suffered a disadvantage such that the supporting bars disposed immovably on the rear portion of the container can possibly be bent or deformed to cause twisting and/or wrinkling of the bag body by the burden produced in injecting the cargo into the bag body consequently to be reusable or destroy the bag body and/or the joint portion relative to the reinforcing sheet.
However, the container internal bag according to the present invention has an advantageous structure in which the rear side element 2d of the bag body 2 is installed so as to freely move relative to the reinforcing sheet 14 fixedly secured relative to the container by means of the connection bands 19 and 21, so that an undesirable tensile force imparted on the rear side element 2d due to moving of the rear side element 2d can be absorbed effectively by the connection bands 19 and 21. As a result, the bag body 2, the rear side element 2d and supporting bars 15 can be prevented from being broken or deformed by twisting and/or wrinkling caused by the undesirable tensile force.
Specifically, the container interior bag according to the invention can surmount disadvantages such that seam or joint parts between the side elements constituting the bag body 2 may possibly be torn apart or broken by the twisting and/or wrinkling of the side elements of the bag body caused by the undesirable tensile force, consequently to cause leakage and/or soilure of the cargo The bag body 2 including the reinforcing sheet 14 of the container interior bag of the invention is preferably made of high-strength fabric sheet material, but the fabric sheet in this invention is further required to be tough and have waterproof property. As examples, there may be used plastic sheet material of polyester, polyamide, polyvinyl chloride, polyomino or the like.
To be specific, thermoplastic sheet material capable of heat welding is more preferable for this invention as it can enhance watertight and waterproof effects to be effective as the bag body of the invention.
When arriving at the prescribed destination, the container interior bag of the invention having the structure as described above may be torn at the rear side element 2d with a cutter upon opening the rear doors 26 of the container 3 and tilting the container by lifting the rear of the container, thus to unload the cargo as performed so far.
Next, the second embodiment of the invention will be described hereinafter with reference to FIG 7 through FIG 15. In these figures, the elements indicated by like reference numerals or symbols with respect to those of the first embodiment have analogous structures and functions to those of the first embodiment and will not be described in detail again.
Similarly in the foregoing embodiment, the bag body 2 in this embodiment is also formed in a rectangular solid shape by uniting the upper side element 2a, bottom side element 2b, front side element 2c, rear side element 2d and right and left side elements 2e and 2f by heat welding to fit the internal configuration of the container 3.
As shown in FIG 8 in an exploded state, the front side element 2c is composed of an upper half part U2c extending rearward from the rear end of the upper side element 2a, a lower half part D2c extending rearward from the rear end of the bottom side element 2b and a rear sheet 2g independent of the upper side element 2a. That is to say, the front side element 2c and rear side element 2d in this embodiment are divided respectively into two parts in a preliminary manner, so that the respective divided half parts of the front side element 2c and rear side element 2d are united with the upper side element 2a and bottom side element 2b, whereas the structure of the bag body 2 comprising the upper and lower half parts U2c and D2c is substantively the same as that in the foregoing embodiment.
The joining of the upper side element 2a with the right and left side elements 2e and 2f are fulfilled by respectively connecting the upper edge parts 2e1 and 2f1 of the right and left side elements 2e and 2f to the right and left edge parts 2a1 and 2a2 of the upper side element 2a in layers, to form four-layered overlap parts. The four-layered overlap parts are thermally welded to form thick oblong reinforced joints 31 along the right and left edge parts 2a1 and W.
As shown in FIG 11 through FIG 14, each four-layered reinforced joint 31 incorporates a bracing core 32 such as of a rope to form a thick reinforced portion 33.
The thick reinforced portion 33 in this embodiment of the invention has an effect of further enhancing strength and rigidity of the reinforced joint 31 so as to steadily retain hanging members or fixing connectors as described below In this embodiment, since the upper side element 2a is united in one body with the upper half part U2c of the front side element 2c and the upper half part U2d of the rear side element 2d, the thick reinforced portions 33 are also formed by incorporating the bracing cores 32 in the reinforced joint 31 formed between the upper half parts U2c and U2d and the right and left side parts 2e and 2f.
In conjunction with joining the upper side element 2a to the right and left side elements 2e and 2f, the bottom side element 2b and the right and left side elements 2e and 2f are united at their edge parts 2bl, 2b2, 2e2 and 212 by heat welding in the same manner as above, thus to form thick reinforced joints 31 identical to the aforementioned reinforced joints 31. Similarly, each reinforced joint 31 incorporates a bracing core 32 such as of a rope to form a thick reinforced portion 33.
The reinforced joint 31 with the reinforced portion 33 is formed respectively at the both end portions of the lower half part D2c of the front side element 2c, the lower half part D2d of the rear side element 2d and the edge parts of the right and left side elements 2e and 2f.
On the other hand, with joining the upper side element 2a to the right and left side elements 2e and 2f in the manner as described, the butt edge parts of the upper half part U2c and the lower half part D2c of the front side element 2c are united in the overlapped face contact state by heat welding to constitute the front side element 2c.
The sheet part forming the upper half part U2d of the rear side element 2d is finally incorporated in the bag body 2 upon complete of joining.
The independent upper half part U2d is formed by another processing after assembling the entire bag body 2 because it is necessary to attach the reinforcing sheet 14 and form the cargo loading opening 9.
The independent rear sheet 2g of the bag body in this embodiment is provided with the cargo loading opening 9 and flap sheet 10 similarly to the retaining member 13 in the foregoing embodiment so as to open and close the cargo loading opening 9 by operating the slide fastener 12. The rear sheet 2g further has the retaining member 13 and connection band 21 similarly to the foregoing embodiment. The reinforcing sheet 14 having the tube-like bar retaining members 16 and 17 and connection band 19 is attached detachably in a suspended state.
The independent rear sheet 2g of the rear side element 2d is united at its upper edge portion to the upper half part U2d of the rear side element 2d in the overlapped face contact state by heat welding, to form the rear side element 2d of the bag body 2.
Upon incorporation of the upper half part U2d into the bag body 2, the reinforcing sheet 14 is joined to the upper half part with the connection bands 19 and 21.
The 5 connection bands 19 and 21 forming a joint portion serving as connecting means are aligned across the respective widths of the retaining member 13 and the reinforcing sheet 14 at prescribed intervals so as to fasten the reinforcing sheet 14 to the rear side element 2d of the bag body 2 in a movable state within a prescribed range.
Like the structure shown in FIG 7, the bag body 2 in this embodiment is installed 10 inside the container in the state of being suspended by means of hanging members 5a attached to the four upper corners of the upper side element 2a similarly to the hanging members 5 in the foregoing embodiment. In FIG 7, denoted by 5b is an intermediate hanging member attached slidably to the aforementioned reinforced portion 33 formed along the right and left edge parts 2a1 and 2a2 of the upper side element 2a.
That is, with the hanging members 5 and connecting strings 7 fastened to the hanging members fixed on the upper and lower corners inside the container 3, the bag body 2 is steadily retained in the container 3 entirely in the spatially spread state while keeping the front side element 2c of the bag close to the front inner wall of the container 3, the right and left side elements 2e and 2f of the bag close to the side inner walls of the container 3 and the bottom side element 2b close to the bottom of the container.
In the installed state of the interior bag in the container, the rear side element 2d of the bag body 2, which confronts the rear opening 8 of the container 3, is suspended within the rear opening 8. The rear side element 2d of the bag body 2 has a cargo loading opening 9 formed in the upper half thereof for loading the cargo into the bag, as shown in the drawings. The cargo loading opening 9 is covered with a flap sheet 10 having its lower end part united with the lower rim of the cargo loading opening 9 so as to be openable outward about the lower end part as a hinge. The flap sheet 10 is shut by locking a slide fastener 12 by sliding a sliding tab 11 so as to freely open and close the cargo loading opening 9.
The rear side element 2d is provided at the midpoint of height with a retaining member 13 horizontally extending substantially across the overall width of the element 2d. Through the retaining member 13, the reinforcing sheet 14 is joined in the suspended state to the rear side element 2d of the bag body 2.
The reinforcing sheet 14 for reinforcing the rear side element 2dhas a width substantially equal to that of the rear side element 2d and a longitudinal length to hang down below the lower end of the rear side element 2d. The reinforcing sheet 14 is provided at the two portions of height, one near the top part 14a and the other at the middle part with relation to the overall height of the sheet 14, with tubelike bar retaining members 16 and 17 through which the supporting bars 15 are inserted.
As shown in FIG 3, the reinforcing sheet 14 has grommets 18 aligned transversely at prescribed intervals in the top part 14a thereof and connection bands 19 caught in the grommets 18, and correspondingly, the retaining member 13 is also provided with the same number of grommets 20 catching connection bands 21 so as to tie up the connection bands 21 on the connection bands 21, thereby to connect the reinforcing sheet 14 with the rear side element 2d.
Although this embodiment is illustrated as using four pairs of the grommets 18 and and the connection bands 19 and 21, the number of such grommets and connection bands is not specifically limited. That is, the invention does not contemplate imposing 15 any limitation on not only the number of the grommets and connection bands, but also the material of these components. Namely, the grommets and connection bands may be made of any materials such as metal and plastic.
The connection bands 19 and 21 each have a length enough for being tied together to serve as connecting means for ultimately connecting the reinforcing sheet 14 to the 20 rear side element 2d of the bag body and arranged in a plural manner widthwise at prescribed intervals.
Incidentally, this embodiment employs the grommets and connection bands as illustrated in FIG 3, but tough cloth bands or cords may be sewn, thermo-welded or firmly attached by any other ways directly to the retaining member 13 and/or reinforcing sheet 14 instead of the grommets 18 and/or 20 and the connection bands 19 and/or 21. As substitute for the connection bands 19 and 21, a fastening tape consisting of minute hooks and uncut piles may of course be used to facilitate connection and disconnection of the reinforcing sheet 14 relative to the rear side element 2d. As an alternative, it is optional to provided one of the rear side element 2d and reinforcing sheet 14a with connection bands or hooks and the other with engaging loops or rings.
What matters is that the reinforcing sheet 14 is attached to the rear side element 2d of the bag body 2 securely but movably within a prescribed permissible range so as not to be kept in a fixed position in a unified manner with the rear side element 2d, so that the reinforcing sheet 14 can be freely placed at arbitrary position relative to the rear side element 2d while being kept in position. Thus, the connection bands 19 and 21 do not 5 always have to be made of elastic material.
To be specific, the structure for connecting the reinforcing sheet 14 to the rear side element 2d of the bag body through the retaining member 13 is employed in the illustrated embodiment of the invention for the purpose of enhancing the connecting strength of the connection bands 21 relative to the rear side element 2d and making 10 fabrication of the bag easy. From this respective, the connection band 21 may be attached directly to the reinforcing sheet 14 without using the retaining member 13.
As an alternative to a single sheet of retaining member 13 illustrated in FIG
3, a plurality of strips may be used as the retaining member 13 so as to be connected to the respective connection bands 19 or directly to the top part 14a of the reinforcing sheet 14.
The reinforcing sheet 14 is joined to the rear side element 2d of the bag body through the connection bands 19 and 21 as described above, and when not in use, it is folded in the state attached to the rear side element 2d. When in use, the reinforcing sheet 14 is spread with the rear side element 2d and suspended as shown in FIG
4, so as to be inserted into between the bottom side element 2b of the bag body land the bottom 3b of the container 3.
In this state, the rear side element 2d of the bag body is hung from the rear corners of the ceiling 3a of the container 3 by means of the locking ring 34 to close the rear opening 8 of the container 3 entirely. The reinforcing sheet 14 is hung down along the rear side element 2d.
The reinforcing sheet 14 thus hung along the rear side element 2d is supported by the supporting bars 15 as shown in FIG 5.
The supporting bars 15 inserted through the bar retaining members 16 and 17 have both ends supported by engaging grooves 23 formed vertically in the right and left inner walls 3c of the container 3. The upper supporting bar 15 is hung from the ceiling 3a by means of hanging belts 24 and hanging rings 25 to keep the reinforcing sheet 14 at a prescribed position in conjunction with the lower supporting bar 15.
The rear side element 2d is securely supported by the reinforcing sheet 14 thus supported by the supporting bars 15 and having its lower part inserted into between the bottoms 2b and 3b of the bag body and the container.
As one example, the loading of the cargo such as cereals is performed by first opening the rear double doors 26 for closing the rear opening 8 of the container 3, tilting the container 3 by lifting the rear of the container 3 at a prescribed angle (about 45 degree) and introducing the cargo into inside the bag body 2 in the tilted container 3 by using a hopper inserted into a cargo loading opening 9 unclosed by opening the flap sheet 10.
In the drawings, 28 denotes a cover sheet openably closing entirely the cargo loading opening 9 in the rear side element 2d. When loading the cargo into the container inner bag, the cover sheet 28 is rolled up above the rear part of the ceiling 3a of the container 3, as shown by a chain line in FIG 4, so as not to allow the cargo discharged from the hopper to enter into the space between the bag body 2 and the container ceiling 3a or between the right and left side elements 2e and 2f of the bag body 2 and the side walls 3c of the container 3. Consequently, effective prevention of contamination of the container and efficient and speedy unloading of the cargo can be expected.
As shown in FIG 6 illustrative of the rear doors 26 of the container 3 in the closed state after loading the cargo into the container interior bag, the cargo GL
such as cereals introduced into the bag presses against the inner walls of the container 3 with pressure of the burden of the cargo, which is exerted on the bottom side element 2b, front side element 2c and right and left side elements 2e and 2f in sequence, so that the lower part 14c of the reinforcing sheet 14 inserted into between the bottoms of the bag body 2 and container 3 is inextrictable caught firmly in between the bottoms with the pressure caused by the heavyweight cargo.
The heavyweight cargo GL further presses forcibly against the rear side element 2d of the bag body 2 to cause the rear side element 2d to bulge backward, but the bulging of the rear side element 2d is prevented by the reinforcing sheet 14.
FIG 6 illustrates the state of preventing the bulging of the rear side element 2d by the tension action of the reinforcing sheet 14. Thus, the rear doors of the container 3 can be opened and closed without being distracted by the bulging of the rear side element 2d caused by the burden of the cargo loaded into the bag. Beside, the rear doors of the container 3 are less affected by the heavyweight cargo loaded in the bag owing to the supporting bars 15 even during transport of the cargo.
Meanwhile, the conventional container interior bag as described in the aforementioned Canadian Patent has suffered a disadvantage such that the supporting bars disposed immovably on the rear portion of the container can possibly be bent or deformed to cause twisting and/or wrinkling of the bag body by the burden produced in injecting the cargo into the bag body consequently to be reusable or destroy the bag body and/or the joint portion relative to the reinforcing sheet.
However, the container internal bag according to the present invention has an advantageous structure in which the rear side element 2d of the bag body 2 is installed so as to freely move relative to the reinforcing sheet 14 fixedly secured relative to the container by means of the connection bands 19 and 21, so that an undesirable tensile force imparted on the rear side element 2d due to moving of the rear side element 2d can be absorbed effectively by the connection bands 19 and 21. As a result, the bag body 2, the rear side element 2d and supporting bars 15 can be prevented from being broken or deformed by twisting and/or wrinkling caused by the undesirable tensile force.
Specifically, the container interior bag according to the invention can surmount disadvantages such that seam or joint parts between the side elements constituting the bag body 2 may possibly be torn apart or broken by the twisting and/or wrinkling of the side elements of the bag body caused by the undesirable tensile force, consequently to cause leakage and/or soilure of the cargo The bag body 2 including the reinforcing sheet 14 of the container interior bag of the invention is preferably made of high-strength fabric sheet material, but the fabric sheet in this invention is further required to be tough and have waterproof property. As examples, there may be used plastic sheet material of polyester, polyamide, polyvinyl chloride, polyomino or the like.
To be specific, thermoplastic sheet material capable of heat welding is more preferable for this invention as it can enhance watertight and waterproof effects to be effective as the bag body of the invention.
When arriving at the prescribed destination, the container interior bag of the invention having the structure as described above may be torn at the rear side element 2d with a cutter upon opening the rear doors 26 of the container 3 and tilting the container by lifting the rear of the container, thus to unload the cargo as performed so far.
Next, the second embodiment of the invention will be described hereinafter with reference to FIG 7 through FIG 15. In these figures, the elements indicated by like reference numerals or symbols with respect to those of the first embodiment have analogous structures and functions to those of the first embodiment and will not be described in detail again.
Similarly in the foregoing embodiment, the bag body 2 in this embodiment is also formed in a rectangular solid shape by uniting the upper side element 2a, bottom side element 2b, front side element 2c, rear side element 2d and right and left side elements 2e and 2f by heat welding to fit the internal configuration of the container 3.
As shown in FIG 8 in an exploded state, the front side element 2c is composed of an upper half part U2c extending rearward from the rear end of the upper side element 2a, a lower half part D2c extending rearward from the rear end of the bottom side element 2b and a rear sheet 2g independent of the upper side element 2a. That is to say, the front side element 2c and rear side element 2d in this embodiment are divided respectively into two parts in a preliminary manner, so that the respective divided half parts of the front side element 2c and rear side element 2d are united with the upper side element 2a and bottom side element 2b, whereas the structure of the bag body 2 comprising the upper and lower half parts U2c and D2c is substantively the same as that in the foregoing embodiment.
The joining of the upper side element 2a with the right and left side elements 2e and 2f are fulfilled by respectively connecting the upper edge parts 2e1 and 2f1 of the right and left side elements 2e and 2f to the right and left edge parts 2a1 and 2a2 of the upper side element 2a in layers, to form four-layered overlap parts. The four-layered overlap parts are thermally welded to form thick oblong reinforced joints 31 along the right and left edge parts 2a1 and W.
As shown in FIG 11 through FIG 14, each four-layered reinforced joint 31 incorporates a bracing core 32 such as of a rope to form a thick reinforced portion 33.
The thick reinforced portion 33 in this embodiment of the invention has an effect of further enhancing strength and rigidity of the reinforced joint 31 so as to steadily retain hanging members or fixing connectors as described below In this embodiment, since the upper side element 2a is united in one body with the upper half part U2c of the front side element 2c and the upper half part U2d of the rear side element 2d, the thick reinforced portions 33 are also formed by incorporating the bracing cores 32 in the reinforced joint 31 formed between the upper half parts U2c and U2d and the right and left side parts 2e and 2f.
In conjunction with joining the upper side element 2a to the right and left side elements 2e and 2f, the bottom side element 2b and the right and left side elements 2e and 2f are united at their edge parts 2bl, 2b2, 2e2 and 212 by heat welding in the same manner as above, thus to form thick reinforced joints 31 identical to the aforementioned reinforced joints 31. Similarly, each reinforced joint 31 incorporates a bracing core 32 such as of a rope to form a thick reinforced portion 33.
The reinforced joint 31 with the reinforced portion 33 is formed respectively at the both end portions of the lower half part D2c of the front side element 2c, the lower half part D2d of the rear side element 2d and the edge parts of the right and left side elements 2e and 2f.
On the other hand, with joining the upper side element 2a to the right and left side elements 2e and 2f in the manner as described, the butt edge parts of the upper half part U2c and the lower half part D2c of the front side element 2c are united in the overlapped face contact state by heat welding to constitute the front side element 2c.
The sheet part forming the upper half part U2d of the rear side element 2d is finally incorporated in the bag body 2 upon complete of joining.
The independent upper half part U2d is formed by another processing after assembling the entire bag body 2 because it is necessary to attach the reinforcing sheet 14 and form the cargo loading opening 9.
The independent rear sheet 2g of the bag body in this embodiment is provided with the cargo loading opening 9 and flap sheet 10 similarly to the retaining member 13 in the foregoing embodiment so as to open and close the cargo loading opening 9 by operating the slide fastener 12. The rear sheet 2g further has the retaining member 13 and connection band 21 similarly to the foregoing embodiment. The reinforcing sheet 14 having the tube-like bar retaining members 16 and 17 and connection band 19 is attached detachably in a suspended state.
The independent rear sheet 2g of the rear side element 2d is united at its upper edge portion to the upper half part U2d of the rear side element 2d in the overlapped face contact state by heat welding, to form the rear side element 2d of the bag body 2.
Upon incorporation of the upper half part U2d into the bag body 2, the reinforcing sheet 14 is joined to the upper half part with the connection bands 19 and 21.
The 5 connection bands 19 and 21 forming a joint portion serving as connecting means are aligned across the respective widths of the retaining member 13 and the reinforcing sheet 14 at prescribed intervals so as to fasten the reinforcing sheet 14 to the rear side element 2d of the bag body 2 in a movable state within a prescribed range.
Like the structure shown in FIG 7, the bag body 2 in this embodiment is installed 10 inside the container in the state of being suspended by means of hanging members 5a attached to the four upper corners of the upper side element 2a similarly to the hanging members 5 in the foregoing embodiment. In FIG 7, denoted by 5b is an intermediate hanging member attached slidably to the aforementioned reinforced portion 33 formed along the right and left edge parts 2a1 and 2a2 of the upper side element 2a.
15 As shown in FIG 13, the hanging member 5a is an S-shaped metallic hook to be attached to the bag body through binding bands 5c.
The binding band 5c is tied to an engaging through hole 5d formed in front and rear edges of the reinforced joint 31 disposed along the edge of the upper side element 2a so as to be retained through the hanging members 5a onto the front and rear corners of the bag body corresponding to the four corner edge portions of the upper side element 2a The binding band 5c piercing the reinforced joint 31 is reinforced by a grommet.
The intermediate hanging member 5b is set to the holder 30 to retain the middle portions of the right and left edges of the upper side element 2a at prescribed intervals as shown in FIG 14.
The holder 30 comprises a sliding member 30a having a C-shaped cross section and an engaging piece 30b protruding from the back of the sliding member 30a and having a through hole 30c for catching the S-shaped hanging member 5a.
The holder 30 is attached to the thick reinforced portion 33 by fitting the C-shaped sliding member 30a to the reinforced portion 33, thereby to be slidably movable freely in the longitudinal direction of the reinforced portion 33.
Meanwhile, the bottom side element 2b of the bag body 2 is provided with fixing connectors 51 and movable connectors 52 for retaining the bag body 2 to the inside of the container 3 similarly to the hanging members 5a and 5b.
The fixing connector 51 is made of a tough band and fastened to an engaging through hole 53 similar to the aforementioned engaging through hole 5d bored in the front and rear end parts of the reinforced joint 31 formed along the right and left edge portions 7a and 7b of the bottom side element 2b. The movable connector 52 is fastened to the through hole 30c in the same holder 30 in the same intermediate hanging member 5b as previously described.
The container interior bag of the invention can be folded into a flat state in an arbitrary manner when not in use so as to be stored in a cardboard case or the like. In use, the folded bag should be unfolded inside the container 3 and installed in the same manner as described above.
Incidentally, the reinforced joint 31 is possibly damaged to strip off the joint part of the thermal-welded side element 2e as shown in FIGS. 15(A) through 15(C). To be more specific, the reinforced joint 31 formed a the joint part of the upper side element 2a and the left side element 2e assumes the regular state under normal conditions as shown in FIG 15(A). When the left side element 2e is forced to move inside the container with throwing the cargo into the bag body 2 or displacing the cargo during transport, twisting caused accidentally between the joint part and the upper side element 2a possibly causes only the joint part to be stripped off, but the other parts including the reinforced joint 31 remain their joint state without being influenced by the twisting of the bag, as shown in FIG 15(B). The part between the upper side element 2a and the left side element 2e becomes tense to concentrate the burden on the joint part as shown in FIG 15(C). When the upper side element 2a and the left side element 2e are supposedly drawn in a planar direction, the joint part is not easily stripped off to maintain its joint state. Thus, the bag body 2 can be prevented effectively from being destroyed due to the tensile force imposed on the bag body.
As is apparent from the foregoing, the present invention can provide the tough and robust container interior bag such as is described above. The toughness of the bag of the invention can be ensured by the two-layered or four-layered sheet structure of the reinforced joint 31 to enhance the strength of the bag and handling efficiency of spreading the bag body inside the container in use.
The binding band 5c is tied to an engaging through hole 5d formed in front and rear edges of the reinforced joint 31 disposed along the edge of the upper side element 2a so as to be retained through the hanging members 5a onto the front and rear corners of the bag body corresponding to the four corner edge portions of the upper side element 2a The binding band 5c piercing the reinforced joint 31 is reinforced by a grommet.
The intermediate hanging member 5b is set to the holder 30 to retain the middle portions of the right and left edges of the upper side element 2a at prescribed intervals as shown in FIG 14.
The holder 30 comprises a sliding member 30a having a C-shaped cross section and an engaging piece 30b protruding from the back of the sliding member 30a and having a through hole 30c for catching the S-shaped hanging member 5a.
The holder 30 is attached to the thick reinforced portion 33 by fitting the C-shaped sliding member 30a to the reinforced portion 33, thereby to be slidably movable freely in the longitudinal direction of the reinforced portion 33.
Meanwhile, the bottom side element 2b of the bag body 2 is provided with fixing connectors 51 and movable connectors 52 for retaining the bag body 2 to the inside of the container 3 similarly to the hanging members 5a and 5b.
The fixing connector 51 is made of a tough band and fastened to an engaging through hole 53 similar to the aforementioned engaging through hole 5d bored in the front and rear end parts of the reinforced joint 31 formed along the right and left edge portions 7a and 7b of the bottom side element 2b. The movable connector 52 is fastened to the through hole 30c in the same holder 30 in the same intermediate hanging member 5b as previously described.
The container interior bag of the invention can be folded into a flat state in an arbitrary manner when not in use so as to be stored in a cardboard case or the like. In use, the folded bag should be unfolded inside the container 3 and installed in the same manner as described above.
Incidentally, the reinforced joint 31 is possibly damaged to strip off the joint part of the thermal-welded side element 2e as shown in FIGS. 15(A) through 15(C). To be more specific, the reinforced joint 31 formed a the joint part of the upper side element 2a and the left side element 2e assumes the regular state under normal conditions as shown in FIG 15(A). When the left side element 2e is forced to move inside the container with throwing the cargo into the bag body 2 or displacing the cargo during transport, twisting caused accidentally between the joint part and the upper side element 2a possibly causes only the joint part to be stripped off, but the other parts including the reinforced joint 31 remain their joint state without being influenced by the twisting of the bag, as shown in FIG 15(B). The part between the upper side element 2a and the left side element 2e becomes tense to concentrate the burden on the joint part as shown in FIG 15(C). When the upper side element 2a and the left side element 2e are supposedly drawn in a planar direction, the joint part is not easily stripped off to maintain its joint state. Thus, the bag body 2 can be prevented effectively from being destroyed due to the tensile force imposed on the bag body.
As is apparent from the foregoing, the present invention can provide the tough and robust container interior bag such as is described above. The toughness of the bag of the invention can be ensured by the two-layered or four-layered sheet structure of the reinforced joint 31 to enhance the strength of the bag and handling efficiency of spreading the bag body inside the container in use.
Further, the toughness of the bag can be ensured by the bracing core 32 such as of a rope embedded in the reinforced joint 31 to have the intermediate hanging member 5b and movable connectors 52 serving as fixing means. With the reinforced joint incorporating the bracing core 32, the bag body can freely move by means of the reinforced portion 33 and the holder 30 to be adjusted relative to the container and easily set in position inside the container by means of the movable connectors 52 with the intermediate hanging members 5b. Besides, the reinforced joint 31 and thick reinforced portion 33 have an effect of strengthening the joint portion against the tensile load produced in moving the bag body, thereby to prevent the mounting portions of the bag from being damaged or destroyed.
Incidentally, although the bracing core 32 embedded in the reinforced portion 33 is of a rope in the foregoing embodiments, the material of the bracing core is not specifically limited and may be of a metallic or fabric cable, tape and cord or any other string-like material. To put it briefly, any material or configuration may be chosen arbitrarily for the bracing core 32 as long as the reinforced portion 33 has sufficient flexibility to easily fold the bag body 2 when stowing the bag in non-use.
As is obvious from the foregoing, according to the interior bag for a container of the present invention, the rear side element of the bag body can effectively be prevented from bulging backward due to the cargo contained in the bag body by means of the reinforcing sheet in association with the supporting bars mounted across the rear opening of the container. Besides, the bag according to the invention can be ensured sufficiently in strength and toughness by the tough structure of the rear side element held by the reinforcing sheet and the four-layered structure formed by the reinforced joints incorporating the bracing cores and the thick reinforced portions, so that the bag can sufficiently sustain hard usage even under severe conditions in loading, unloading and transporting the cargo and be handled in safe with ease while dealing with the loaded cargo.
While the invention has been explained by reference to particular embodiments thereof, and while these embodiments have been described in considerable detail, the invention is not limited to the representative means and methods described.
Those of ordinary skill in the art will recognize various modifications which may be made to the embodiments described herein without departing from the scope of the invention.
Accordingly, the scope of the invention is to be determined by the following claims.
Incidentally, although the bracing core 32 embedded in the reinforced portion 33 is of a rope in the foregoing embodiments, the material of the bracing core is not specifically limited and may be of a metallic or fabric cable, tape and cord or any other string-like material. To put it briefly, any material or configuration may be chosen arbitrarily for the bracing core 32 as long as the reinforced portion 33 has sufficient flexibility to easily fold the bag body 2 when stowing the bag in non-use.
As is obvious from the foregoing, according to the interior bag for a container of the present invention, the rear side element of the bag body can effectively be prevented from bulging backward due to the cargo contained in the bag body by means of the reinforcing sheet in association with the supporting bars mounted across the rear opening of the container. Besides, the bag according to the invention can be ensured sufficiently in strength and toughness by the tough structure of the rear side element held by the reinforcing sheet and the four-layered structure formed by the reinforced joints incorporating the bracing cores and the thick reinforced portions, so that the bag can sufficiently sustain hard usage even under severe conditions in loading, unloading and transporting the cargo and be handled in safe with ease while dealing with the loaded cargo.
While the invention has been explained by reference to particular embodiments thereof, and while these embodiments have been described in considerable detail, the invention is not limited to the representative means and methods described.
Those of ordinary skill in the art will recognize various modifications which may be made to the embodiments described herein without departing from the scope of the invention.
Accordingly, the scope of the invention is to be determined by the following claims.
Claims (26)
1. An interior bag for a container having a rear opening and rear doors openably closing said rear opening, comprising a bag body formed by splicing right and left side elements, upper side element, front side element, bottom side element and rear side element having a cargo loading opening into a shape to fit the internal configuration of said container, and a reinforcing sheet suspending from underneath said cargo loading opening along said rear side element, said reinforcing sheet being attached detachably to said rear side element of said bag body through a joint portion.
2. The interior bag set forth in Claim 1, wherein said joint portion is formed of connection bands aligned across the respective widths of said rear side element and said reinforcing sheet at prescribed intervals to fasten said reinforcing sheet to said rear side element of said bag body in a movable state within a prescribed range.
3. The interior bag set forth in Claim 1, wherein said reinforcing sheet has the upper end portion fixedly supported by a support bar at a fixing position of the middle of said rear side element of said bag body to allow the upper end portion to freely move within a prescribed range, thereby to absorb distortion caused between said reinforcing sheet and said joint portion due to displacement of said rear side element when loading cargo into said bag.
4. The interior bag set forth in Claim 1, wherein said rear side element of said bag body is provided at its fixing position with engaging through holes and said reinforcing sheet is provided at its upper part with engaging through holes corresponding to said engaging through holes in said rear side element so as to join said reinforcing sheet to said rear side element by fastening connection bands caught by said engaging through holes in said reinforcing sheet and said rear side element.
5. The interior bag set forth in any of Claims 1 to 3, wherein said connection bands are fixed onto one of said reinforcing sheet and said rear side element so as to be inserted through said engaging through holes in the other of said reinforcing sheet and said rear side element for being tied onto said engaging through holes.
6. The interior bag set forth in any of Claims 1 to 4, wherein said connection bands are formed of tough material having a prescribed length.
7. The interior bag set forth in any of Claims 1 to 4, wherein said connection bands are formed of tough cloth material having flexibility.
8. The interior bag set forth in any of Claims 1 to 7, wherein said rear side element of said bag body has a retaining member horizontally extending substantially across and united to said rear side element and said reinforcing sheet is joined to said retaining member by fastening said connection bands connected to said retaining member and said reinforcing sheet.
9. The interior bag set forth in Claims 3, 6 or 7, wherein said connection bands are fixed to said retaining member and said reinforcing sheet by heat welding.
10. An interior bag for a container, comprising a bag body formed by splicing right and left side elements, upper side element, front side element, bottom side element and rear side element having a cargo loading opening at their edge portions in the overlapped face contact state by heat welding, and a reinforcing sheet suspending from underneath said cargo loading opening along said rear side element, said reinforcing sheet being attached detachably to said rear side element of said bag body through a joint portion.
11. The interior bag set forth in Claim 1, wherein said right and left side elements, upper side element, front side element, bottom side element and rear side element are spliced at their edge portions in the overlapped face contact state by heat welding to form four-layered reinforced edge parts.
12. The interior bag set forth in Claim 10 or Claim 11, wherein said right and left side elements, tipper side element, front side element, bottom side element and rear side element are spliced by placing their edge portions one on top of the other in the overlapped face contact state, folding said overlapped edge portions into four layers and uniting the edge portions by heat welding to form four-layered reinforced edge parts.
13. The interior bag set forth in any of Claims 10 to 12, wherein said overlapped edge portions incorporate bracing cores to form thick reinforced portions.
14. The interior bag set forth in any of Claims 10 to 13, wherein said reinforced joints formed along said edge portions of said upper side element are provided in their front and rear end parts with through holes for retaining hanging members.
15. The interior bag set forth in any of Claims 10 to 14, wherein said reinforced joints formed along said edge portions of said bottom side element are provided in their front and rear end parts with through holes for retaining hanging members.
16. The interior bag set forth in any of Claims 13 to 15, wherein holders for holding said hanging members or fixing connectors are slidably mounted on said reinforced portions formed along said reinforced joints so as to freely move said hanging members or fixing connectors to arbitrary positions along said reinforced portions.
17. An interior bag for a container having a rear opening and rear doors openably closing said rear opening, comprising a bag body formed by splicing right and left side elements, upper side element, front side element and bottom side element into a rectangular solid shape to fit the internal configuration of said container, an independent rear side element having a cargo loading opening, and a reinforcing sheet suspending from underneath said cargo loading opening along said rear side element, said reinforcing sheet being attached detachably to said rear side element of said bag body through a joint portion.
18. The interior bag set forth in Claim 1 or Claim 10, wherein said rear side element is formed independent of said right and left side elements, upper side element, front side element and bottom side element and attached to the united right and left side elements, upper side element, front side element and bottom side element to form said bag body of a rectangular solid shape to fit the internal configuration of said container.
19. The interior bag set forth in Claim 17 or Claim 18, wherein said bag body is formed by placing the abutting joint edges of said right and left side elements, upper side element, front side element, bottom side element and rear side element one on top of the other in the overlapped face contact state to form overlapped edge portion and uniting said overlapped edge portions by heat welding.
20. The interior bag set forth in any of Claims 17 to 19, wherein said right and left side elements, upper side element, front side element and bottom side element are joined with each other at their opposed edges in the state of folding the joint surfaces of the respective edge parts in four layers to form four-layered reinforced joints along the abutting joint edges.
21. The interior bag set forth in Claim 20, wherein said reinforced joint incorporates a bracing core along the longitudinal direction to form a thick reinforced portion.
22. The interior bag set forth in Claim 21, wherein holders for holding said hanging members or fixing connectors are slidably mounted on said reinforced portions formed along said reinforced joints so as to freely move said hanging members or fixing connectors to arbitrary positions along said reinforced portions.
23. The interior bag set forth in Claim 17 or 18, wherein upper and lower subsidiary rear sheets are formed extending from the respective rear ends of said upper and bottom side elements and have right and left edges joined to the rear ends of said right and left side elements so as to confront said rear side elements.
24. The interior bag set forth in any of Claims 17 to 23, wherein said reinforcing sheet is suspended from the joint portion between said reinforcing sheet and said rear side element along said rear side element.
25. The interior bag set forth in any of Claims 17 to 24, wherein said reinforcing sheet is joined to said rear side element through connecting means in a state movable freely relative to said rear side element within a prescribed range.
26. The interior bag set forth in Claim 25, wherein said reinforcing sheet is detachably attached to said rear side element by connecting means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009165144A JP5283578B2 (en) | 2009-07-13 | 2009-07-13 | Container interior bag |
| JP2009-165144 | 2009-07-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2709436A1 true CA2709436A1 (en) | 2011-01-13 |
| CA2709436C CA2709436C (en) | 2014-12-23 |
Family
ID=43448746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2709436A Expired - Fee Related CA2709436C (en) | 2009-07-13 | 2010-07-12 | Interior bag for a container |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5283578B2 (en) |
| CA (1) | CA2709436C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112088388A (en) * | 2018-03-05 | 2020-12-15 | 万喜建筑工程公司 | Container for a system for distributing goods in urban areas |
| CN112607231A (en) * | 2020-12-03 | 2021-04-06 | 泉州国利包装有限公司 | Novel dry material bag |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3825255A1 (en) * | 2019-11-21 | 2021-05-26 | Oswaldo Mino | Liner floor, liner and method for unloading bulk cargo |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3980196A (en) * | 1975-05-21 | 1976-09-14 | United States Lines, Inc. | Lining of containers for bulk cargo |
| JPS6391499U (en) * | 1986-12-04 | 1988-06-13 | ||
| JPH062510B2 (en) * | 1989-01-10 | 1994-01-12 | エーピーエス株式会社 | Interior bag for container |
| JP2599302B2 (en) * | 1989-08-30 | 1997-04-09 | エーピーエス株式会社 | Container interior bag |
| JPH0610021B2 (en) * | 1989-04-21 | 1994-02-09 | エーピーエス株式会社 | Interior bag for container |
| JPH0642781U (en) * | 1992-11-13 | 1994-06-07 | 日新製袋株式会社 | Inner bag for container |
| JPH0654590U (en) * | 1993-01-08 | 1994-07-26 | 日本郵船株式会社 | Container interior bag |
| JP3312535B2 (en) * | 1995-07-11 | 2002-08-12 | 株式会社スリーボンド | Concrete tank with bag-shaped sheet on the inner surface |
| JPH11165790A (en) * | 1997-12-05 | 1999-06-22 | Suntory Ltd | Repeatedly usable container inner bag |
| JP2000175801A (en) * | 1998-12-17 | 2000-06-27 | Ogawa Tent Co Ltd | Suspending device and suspended member |
| JP3078130U (en) * | 2000-12-05 | 2001-06-22 | 日本マタイ株式会社 | Container interior bag |
| JP2004352286A (en) * | 2003-05-28 | 2004-12-16 | Kita Nihon Kumiai Shiryo Kk | Flexible container bag |
| US20070102428A1 (en) * | 2005-11-07 | 2007-05-10 | Sunun Eamcharoenying | Flexible liner for packaging powdered or granular cargo for cargo container transportation |
-
2009
- 2009-07-13 JP JP2009165144A patent/JP5283578B2/en not_active Expired - Fee Related
-
2010
- 2010-07-12 CA CA2709436A patent/CA2709436C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112088388A (en) * | 2018-03-05 | 2020-12-15 | 万喜建筑工程公司 | Container for a system for distributing goods in urban areas |
| CN112607231A (en) * | 2020-12-03 | 2021-04-06 | 泉州国利包装有限公司 | Novel dry material bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2709436C (en) | 2014-12-23 |
| JP5283578B2 (en) | 2013-09-04 |
| JP2011020692A (en) | 2011-02-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20190712 |