AU593346B2

AU593346B2 - Inner bag for container

Info

Publication number: AU593346B2
Application number: AU71842/87A
Authority: AU
Inventors: Hiroshi Hamada; Michiharu Suzuki; Takamitsu Watanabe
Original assignee: Ogawa Tent Co Ltd
Current assignee: Kawasaki Kisen Kaisha Ltd; Ogawa Tent Co Ltd
Priority date: 1987-02-26
Filing date: 1987-04-22
Publication date: 1990-02-08
Anticipated expiration: 2007-04-22
Also published as: EP0280495A2; EP0280495A3; EP0280495B1; DE3870279D1; AU7184287A; JPS63134995U; JPH0327998Y2

Description

FORM 10 SPRUSON FERGUSON COMMONWEALTH OF AUSTRALIA PATENTS ACT 1952 COMPLETE SPECIFICATION (ORIGINAL) 5 93 3 4 FOR OFFICE USE: 7/'S~L e~ 7 Class Int. Class Complete Specification Lodged: Accepted: Published: 4 4 ~1 Priority: Related Art: Name of Applicants: Address of Applicants: Actual Inventor(s): Address for Service: OGAWA TENT CO., LTD. and KAWASAKI KISEN KAISHA No. 10-13, Fuyuki, Koto-ku, Tokyo, Japan and 8, Kaigan-Dori, Chuo-ku, Kobe 650, Hyogo-Ken, Japan respectively MICHIHARU SUZUKI, HIROSHI HAMADA and TAKAMITSU WATANABE Spruson Ferguson, Patent Attorneys, Level 33 St Martins Tower, 31 Market Street, Sydney, New South Wales, 2000, Australia 2

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Complete Specification for the invention entitled: "INNER BAG FOR CONTAINER" The following statement is a full description of this invention, including the best method of performing it known to us SBR/as/318U 2 3 4 6 7 8 9 0 04 19 4. 9 22 27 28 29 This invention relates to an inner bag for a container for use in transportation, and more particularly to a construction of an upper surface of an inner bag for a container.

Containers 'nave been widely used in transporting facilities as ships, railway trains and like for transporting goods on large scale such as corns, foods, raw materials for industries, industrial goods and other loads accommodated in the containers. In such a transportation with containers, goods are often accommodated in inner bags which are then loaded in containers in order to avoid contamination of the containers by remaining smell or odor from goods which have been accommodated in the containers.

various kinds of inner bags for containers have been proposed. For example, Japanese Laid-open Utility Model- Application No. 62-8988 disclosed an inner bag for a container capable of preventing slack of an upper surface of the inner bag. Such an inner bag as one example will be briefly explained hereinafter.

Fig. 1 is a schematic plan view of the inner bag of the prior art. The inner bag mainly comprises an upper surf ace 10, a bottom surf ace (not shown) a rear surf ace 12, side surfaces 14 and 16 and a front surface 18 to form a substantial hexahedron. The inner bag further comprises, although not shown, jointing portions provided along edges of the hexahedron, for example, hook-like hangers and

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1 2 3 4 6 7 8 9 15 7 19 20 a o a 22 23 2 4 26 27 28 29 20 Pp P p* 8 44+ 26o 29 30 charging and discharging openings provided at dete n'.,ned locations of the hexahedron.

Reference numerals 20 and 22 denote an edge of the upper surface 10 connecting with the side surface 14 and an edge of the upper surface 10 connecting with the side surface 16, respectively. In this example, the edges 20 and 22 are in the form of circular arcs having apexes at mids of the edges 20 and 22 of the upper surface Moreover, one edge 20 or 22 is curved toward the other edge 22 or 20. In this manner, slack occurring at a center of the upper surface 10 is prevented.

In transporting goods in containers, dew is often deposited to form water droplets on inner walls of the container and outer surfaces of inner bags, and rain water and sea water often enters the containers. As a result, if there is slack of the upper surface 10, the water tends to accumulate on the slack. However, the illustrated inner bag does not include the slack on the upper surface so that water does not accumulate on the upper surface 10. Accordingly, when the container is tilted into a dump-up position for discharging the goods therein, the goods, for example, corns or chemical medicines are not contaminated by the water. Such a contamination of the goods is caused by the water flowing along the outer surfaces of the inner bag to splash over the discharging goods or by the water directly entering the inner bag through the upper surface.

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4 19 22 23 24 26 29 With this hitherto used inner bag, the slack of the upper surface is prevented by bending at least one edge of the upper surface connecting with one side surface into the convex or circular arc shape toward the other edge of the upper surface connecting with the other side surface as above described.

In case of a short inner bag of this kind of the prior art, for example, for a twenty-feet container, the slack of the upper surface is effectively prevented because of a short edge of the upper surface of the inner bag. In case of a long inner bag, for example, for a forty-feet container, however, the slack of the upper surface could not be prevented sufficiently because a long edge of the upper surface of the inner bag tends to increase chance that the slack occurs.

In case of such a long inner bag, moreover, there are often provided a plurality of jointing portions on bendable edges of the upper surface in order to distribute as uniformly as possible the load from the accommodated goods increases for the long or large inner bag. However, as these jointing portions are provided along the bendable edges, it is difficult to extend the upper surface uniformly and therefore it is more difficult to prevent the slack of the upper surface of the inner bag sufficiently. A plurality of the jointing portions provided along bendable edges are shown by circles in broken lines in Fig. 1.

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-4- It is the object of the present invention to overcome or substantially ameliorate the above disadvantages.

There is disclosed herein an inner bag for a container, said inner bag including an upper surface, a bottom surface, a rear surface, side surfaces and a front surface to form a substantial hexahedron and having jointing portions provided at ends of edges of said upper surfaces for connecting the inner bag to inner walls of the container, wherein at least one edge of said upper surface of the inner bag is provided midway of the edge with at least one jointing portion so that all the jointing portions along said one edge are substantially in alignment with each other, edges between the adjacent jointing portions along said one edge being concaved inwardly of the upper surface viewed in a plan view of the upper surface to an extent sufficient to substantially prevent any slack of said edges between the adjacent jointing portions.

The parts of the edge are preferably arcuate. The concaved parts may consist of segments of straight lines.

Edges of the upper surface extending substantially perpendicular to the edge provided with the jointing portion may be also concaved inwardly ,08 S of the upper surface viewed in the plan view of the upper surface.

With the construction of the inner bag for a container, at least one edge of the upper surface of the inner bag is provided with a plurality of jointing portions and parts of the edge between the adjacent jointing portions are concaved inwardly of the upper surface. Accordingly, at least S one edge of the upper surface has plural concaved parts so that the slack 5 of the upper surface can be considerably reduced in comparison with the prior art or the slack can be effectively prevented, even if a long inner bag is hung and extended in a long container.

With the concaved parts of the edge between the adjacent jointing portions, the upper surface can be tensioned more uniformly than in the 10 prior art, so that the slack of the long inner bag is reduced or prevented S more effectively than in the prior art.

Preferred forms of the present Invention wll now be described by way of example with reference to the accompanying drawings, wherein: Fig. 1 is a schematic plan vliew illustrating an inner bag for a container of the prior art; a., 'a a .4 a al i f I .1l

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Fig. 2 is a embodiment of the Fig. 3 is a embodiment of the Fig. 4 is a the Inner bag for schematic perspective view illustrating a first inner bag for a container according to the invention; schematic plan view of the inner bag of the first invention; and schematic plan view illustrating a second embodiment of a container .4 4 t 4* *444

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19 22 23 24 215 26 27 218 29 according to the invention.

The attached drawings for explaining the invention is so schematic to an extent that the invention can be substantially understood and therefore shapes material, dimensions and positional relations between the respective components of the invention are not limited to those shown in the drawings.

First Embodiment Fig. 2 is a schematic perspective view illustrating as a whole the first embodiment of the inner bag for a container according to the invention. Fig. 3 is a plan view of the inner bag shown in Fig. 2.

Referring to Fig. 2, the inner bag of this embodiment comprises mainly an upper surface 42, a bottom surface 44, a rear surface 46, side surfaces 48 and 50 and a front surface 52 to form a substantial hexahedron.

In this embodiment, the inner bag is provided with an opening 54 at an upper portion of the front surface 52 for charging or discharging goods and with a cover member 56 extending from a location above the opening 54 for opening and closing the opening 54.

Reference numeral 58 denotes fastening members, for example, surface fasteners. In this embodiment, an extending and of the cover member 56 is anchored to a substantial center portion of the front surface 52 by means of the fastening members 58 for closing the opening 54. When the goods, for example, corns as barleycorns for -6

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t ii; y L- .n W r 1 2 3 4 6 7 8 9 19 02 00 0 0 a 0 220 j 24 26 S27, 28 19 20 00 22 21 22 beer are discharged from the inner bag in a dump-up position, the lower portion of the front surface 52 may be formed with an opening by cutting part of the lower portion with a knife to discharge the corns through the opening.

Reference numerals 60 illustrate belts Qo4thi which in this embodiment are provided along edges of the inner bag to reinforce the inner bag.

Reference numerals 38, 64, 66 and 68 denote jointing portions for connecting the inner bag to inner walls of the container. In this embodiment, the jointing portions 64 are provided at two corners on an upper portion of the front surface of the inner bag. The jointing portions 66 are provided at two corners on a lower portion of the front surface of the inner bag.

Moreover, the jointing portions 68 are provided at four corners of upper and lower portions of the rear surface of the inner bag. The jointing portions 38 are provided at substantial mid portions of edges a and b of the upper surface 42 on the sides of the side surfaces 48 and 50. In this manner, this inner bag comprises the jointing portions 64, 38 and 68 along the edges a and b in this order from the front surface 52 to the rear surface 46.

Referring to Figs. 2 and 3, according to the invention, parts of the edges a and b between the adjacent jointing portions 64 and 38 and between the adjacent jointing portions 38 and 68 are curved or concaved 7

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1 inwardly of the upper surface 42, respectively, as viewed 2 in the plan view. The concaved edges are preferably 3 substantially circular arcuate. However, the concaved 4 edges may be of the other shapes, for example, consisting of segments of straight lines. In order to prevent slack j 6 of the upper surface effectively, it is preferable to 7 concave both the edges a and b inwardly. However, only 8 either one of the edged a and b may be concaved. The 9 jointing portions 38, 64 and 68 are shown by circles in a solid lines in Fig. 3.

:Any constructions of the jointing portions 64, S 66, 68 and 38 are acceptable. In this embodiment, for «13 example, the jointing portions 64 are case hanging devices i14«. proposed by the applicant of this application.

As shown in fig 2, the jointing portion 64 4.

1 comprises a belt member 70 whose one end (fixed end) is fixed to a side edge of one corner of the inner bag and r i the other end (free end) is anchored to a buckle 74 19 provided at a side edge of the other corner of the inner 2 0 bag, and an annular body 72 provided at the corner. In the 2.al illustrated embodiment, the annular body 72 is fixed to 22 the corner with the aid of the belt member 76, and the 23 buckle 74 is fixed to the corner by means of the belt 24 member 76.

Part of the belt member 70 between the fixed and I 26, free ends passes through the annular body 72 to form a 27 loop partially. The loop is connected to an attaching 28 29 -8 1 1 L 'i

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Sii 1 portion (not shown) of an inner wall of the container by 2 means of a C-shaped mounting ring 78.

3 i This jointing portion 64 is able to adjust the 4 loop into smaller sizes by pulling the free end of the I belt member 70. Therefore, when the loop of the belt 6 member 70 is made smaller, the corners of the inner bag 7 are attracted to the inner walls of the container to

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8 tension the inner bag 9 The buckle 74 in this embodiment is provided with a stopper which is inoperative, that is, not i i t /anchoring the free end of the belt member 70 when it is l2 pulled in a direction making smaller the loop, but is ag I operative to anchor the free end when the belt member is 14. subjected to a force in a direction opposite to the direction making smaller the loop. As a result, the loop in the smaller size is held in its size by the buckle 74 S with the stopper, so that the inner bag is maintained 13 under the tensioned condition.

19 Moreover, the jointing portion 66 in this embodiment comprises an annular body 72 provided at the 22 end (fixed end) is fixed to a side edge of the corner of 23 the inner bag and the other end (free end) is anchored by 24 a buckle 80 provided in the proximity of the side edge to which the fixed end is fixed. In this illustrated 26 embodiment, the annular body 72 is fixed to the corner 27 through the belt member 60, and the buckle 80 is fixed to 28 29 9 -a~ib i r P~pt~ 1 I the side edge of the corner through the belt member 76.

2 1 In the jointing portion 66, part of the belt 3 member 82 passes through the annular body 72 to form a 4 loop in the same manner as in the jointing portion 64. In: i hanging and extending the inner bag in the container, 6 therefore, the loop is connected to an attaching portion 7 of an inner wall of the container with the aid of a 8 mounting ring 78. When the loop of the belt member 82 is 9 made smaller to attract the inner bag toward the inner

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10 ii walls of the container to tension the inner bag in the i s container. The buckle 80 is also provided with a stcoer oF similar to that of the buckle 74, thereby maintaining the 3 I inner bag under the tensioned condition by the buckle e 1 The jointing portion 68 in this embodiment comprises a belt member 84 fixed to a side edge of the 16 i corner of the inner bag, and a mounting ring 78 fixed to 17 the belt member 84. In hanging and extending the inner bag i in the container, the mounting ring 78 of the jointing 19 portion 68 is connected to an attaching portion on an 420 inner wall of the container.

a i Moreover, the jointing portion 38 in this 22 f embodiment comprises a belt member 39 whose one end (fixed 23 end) is fixed to the edge of the inner bag on one side and 24 the other end (free end) is anchored by a buckle 41 provided on the edge on the other side, and an annular 26 body 40 provided on the edge between the buckle 41 and the 27 fixed end of the belt member 39. In this embodiment, the 28 29 10 1 buckle 41 is fixed to the edge through a belt member 76 2 and the annular body 40 is fixed to the edge through the 3 belt member 76 between the buckle 41 and the fixed end of 4 the belt member 39.

With the jointing portion 38, a loop of the belt 6 member is formed with the aid of the annular body 40 in 7 the same manner as in the jointing portion 64. In hanging 8 and extending the inner bag in the container, therefore, 9 the loop is connected through a mounting ring 78 to an 410 f attaching portion of the inner wall of the container, so l' J that the loop of the belt member 39 is made smaller to 12 attract the fixed portion of the annular body 40 toward 3 the inner wall of the container so as to tension the inner i4 bag in the container. The buckle 41 is also provided with a stopper similar to that of the buckle 74, so that the 16 inner bag is maintained under the tensioned condition by 17 means of the buckle 41.

In In the jointing portions 38, 64 and 66, 19 moreover, the loops of the belt members 39, 70 and 82 may be directly connected to the attaching portions of the 1 inner walls of the container without using mounting rings 22 78.

23 Processes of hanging and extending the inner bag 24 in the container will be explained by way of example.

Processes for this purpose is of course not limited to the 26 processes described herein. i 27 First, the jointing portions 64 provided at the 28 29 i 11i I i I 1 four corners and the jointing portions 38 provided at the 2 edges a and b are connected to the inner walls of the 3 container. Then, the upper surface 42 of the container is 4 partially tensioned by means of the jointing portions 38 so that the concaved parts of the edges a and b between 6 the jointing portions 38 and 68 become substantially 7 straight in their longitudinal directions, thereby 8 eliminating slack of the part of the upper surface 42 9 between such substantially straight edges.

Thereafter, the jointing portions 64 provided at 11 the two corners of the upper portion of the front surface 12 52 of the inner bag are connected to the inner walls of ,j 3 the container. Then the upper surface 42 is partially 4 i tensioned by means of the jointing portions 64 so that the concaved parts of the edges a and b between the jointing 16 portions 38 and 64 become substantially straight in their 17 longitudinal directions, thereby eliminating slack of the 18 part of the upper surface 42 between such substantially 19 straight edges.

Moreover, the jointing portions 66 provided at 21 the two corners of the lower portion of the front surface 22 52 are connected to the inner walls of the container and 23 then the bottom surface is tensioned by means of the Z24' jointing portions 66. The hanging and extending of the inner bag in the container is completed in this manner.

26 The upper surface 42 of the inner bag according 27 to the invention comprises a plurality of concaved 28 29 -12- 1 2 3 4 6 7 8 9 11 12 18 :0 19., 4 2U' 22 23 24 26 27 28 29 portions along the edges a and b, so that even if the inner bag hung and extended is long, slack of the upper surface is effectively prevented and if slack occurs, its amount is much smaller than that of the prior art.

Moreover, the parts of the edges a and b are concaved inwardly between the jointing portions 64 and 38 between the jointing portions 38 and 68, so that the upper surface 42 is more uniformly tensioned in comparison with the prior art. In this manne:r, according to the invention, slack of a long inner bag for a container can be made smaller than those of the prior art and can be effectively prevented in comparison with the prior art.

Second Embodiment Fig. 4 is a plan view identical with Fig. 3, illustrating a second embodiment of the invention. In Fig. 4, like components are designated by the same reference numerals as those in Fig. 3 and will not be described in further detail.

The second embodiment is similar to the first embodiment above described with exception of differences in configuration of the upper surface, and number and positional relation of jointing portions.

In the second embodiment, two jointing portions 38 are provided on each of edges a and b between jointing portions 64 and 68. These jointing portions 64, 38 and 68 are arranged spaced apart from each other. As viewed in the plan view of the upper surface 42, parts of the edges 13 I1 -I

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1 a and b between the jointing portions 64 and 38, between 2 the jointing portions 38 and 38 bten hejoining 3 portions 38 and 68 are concaved inwardly of the upper 4 t surface 42, respectively. moreover, edges c and d of the upper surface on the sides of the front and rear surfaces 6 are also concaved inwardly of the upper surface 42 as 7 viewed in the plan view of the upper surface.

8 The inner bag of the second embodiment can bring 9 about the same significant -ffects, as those of the first 0embodiment.

11 It will be understood that this invention is not 12 limited to the embodiments above described and various 1,3 change,,- and modifications may be made in the invention.

I'For example, this invention i s preferably applicable to a long inner bag for a container to hang the bag at multiple points as six or eight points. A plurality :17 of jointing portions for having the inner bag in the #18 container may be provided at edges of an upper surface of the inner bag in any suitable numbers and positional relations of the jointing portions depending upon required hanging constructions. Moreover, it is preferable to 22 provide a plurality of jointing portions along each edge -23 :of the upper surface adjacent to one side surface for 2.4 preventing the slack of the long inner bag. However, a plurality of jointing portions may be provided on either 26 edge or edges suitably selected at will from a plurality 27 of edges of the upper surface of the inner bag.

28 29 -14- 5 consist of segments of straight lines. It is most 6 preferAny configurations of the concaveded parts of the edges of the 27 the upper surface may be employed so long as the same effects 8 innare accomplished. For examplg for preventing the slack of the long innedges mayg.

41 4 be arcuately curved inwardly of the upper surface or may consist of segments of straight lines. It is most 6 preferable to provide these concaved parts of the edges of 7 the upper surface adjacent to both side surfaces of the 8 i inner bag for preventing the slack of the long inner bag.

9 However, the concaved parts may be provided on either edge or plural edges suitably selected at will from a plurality 11 of edges of the upper surface of the inner bag.

12 Moreover, it is most preferable to make the 0013 upper surface from a single cloth-like member. However, it I.4ti may be formed by a plurality of members by, for example, 5\ sewing or welding for jointing these members. In forming "i6 the upper surface from the plurality of members, the 17 jointed portions are preferably sealed watertightly and 18 subjected to waterproofing treatment.

a 19t Jointing portions hitherto used may be employed for hanging in a container the inner bag according to the j e, invention. Moreover, hitherto used constructions and 22 positional relations of discharging and charging openings V: ,23 may be used for the inner bag according to the invention.

S i*4 Furthermore, the present invention can be applicable to the inner bag of the prior art. Although the present S26 invention is preferably applied to long inner bag, for 27 example, forty-feet inner bags, it may of course be 28 29 y- 1 1 r i a L i 1 2 3 4 6 7 8 9 11 12 ,3 t .16 17 18 21 22 23 P4 26 27 28 29 applicable to short inner bags.

As can be seen from the above explanation, in hanging and extending in a container a long inner bag according to the invention, the slack of the upper surface can be considerably reduced in comparison with the prior art and the slack can be mostly eliminated to prevent water from accumulating on the upper surface of the inner bag. As a result, the inner bag according to the invention can substantially completely prevent water from entering the bag through its upper surface and can substantially prevent goods from being splashed by the water when the goods are being discharged from the inner bag in a dump-up position.

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Claims

2. An inner bag as set forth in claim 1, wherein the concaved parts of the edge are arcuate.
3. An inner bag as set forth in claim 1, wherein the concaved parts of the edge comprise segments of straight line to form concaved parts.
4. An inner bag as set forth in claim 1, wherein two jointing portions are provided along at least one edge of said upper surface between the jointing portions provided at ends of said edge. An inner bag as set forth in claim 1, wherein edges of the upper surface extending substantially perpendicular to said edge provided with said jointing portion are also concaved inwardly of the upper surface viewed in the plan view of the upper surface.
6. An inner bag for a container, the inner bag being substantially as hereinbefore described with reference to Figs. 2 and 3 of the accompanying drawings. 0 7. An inner bag for a container, the inner bag being substantially as hereinbefore described with reference to Fig. 4 of the accompanying 'I ;ia drawings. i DATED this TWENTY-THIRD day of OCTOBER 1989 Ogava Tent Co. Ltd Kawasaki Kisen Kaisha Patent Attorneys for the Applicant SPRUSON FERGUSON