JP5189560B2 - Container interior bag - Google Patents

Description

  The present invention relates to an interior bag for a container that is mounted inside a container and is used for transportation of granular or powdered cargo such as grains.

When using a so-called general-purpose container to transport grained or powdered cargo such as grain, an interior bag is set inside the container and the cargo is loaded into the interior bag for loading. After loading, the door of the opening is closed and used for truck transport or ocean transport by container ship.
Conventionally, for example, Patent Documents 1 and 2 have been known and put into practical use as interior bags for containers to be used for such use.

Japanese Patent Publication No. 06-2510. Japanese Patent Publication No. 06-10021.

  The interior bags for containers described in these patent documents are formed in a rectangular parallelepiped shape in which the bag main body is adapted to the internal shape of the container, and are used at the four corners of the front portion of the bag main body and the upper two corner portions of the rear surface portion when used. The hanging strap to be installed is hooked on a hook (locking ring) provided at the inner corner of the container, spreads into a rectangular parallelepiped shape, set inside the container, and then provided on the back surface of the bag main body in this state Grain and other cargo are input from the cargo input port and loaded.

Currently, there are many interior bags that are generally put into practical use, such as the interior bags described in Patent Documents 1 and 2, that do not include a reinforcing sheet that reinforces the back surface of the bag. The basic shape of the main body is almost the same, and when the loading of cargo from the loading port provided on the rear surface is finished, the container opening is closed with a door, and loading is completed. Yes.
Cargo loaded into a container equipped with an interior bag can be reliably loaded at the same time as the rear surface of the interior bag faces the opening of the container to prevent the cargo from leaking out. Since the cargo is wrapped in the interior bag, it does not touch the inner wall surface of the container, and therefore has a great advantage that it can be transported hygienically using a general-purpose container.

  However, the above-mentioned general-purpose container was not originally built for transporting grains, etc., but although it has a certain level of water tightness, it cannot be expected to be completely waterproof, and rainwater may enter. Due to imperfect airtightness, dust or the like has entered, and the inside of the container is polluted, which penetrates into the cargo through the interior bag, fouls and sanitizes the sanitary transportation.

  In particular, since conventional interior bags were manufactured by sewing work using fabric sheets as a raw material, there was insufficient bonding between the sheets, and when receiving impacts when loading cargo, There was a problem that the sewn part was torn and the grain leaked into the container, or rainwater that entered the container penetrated from the damaged part.

  In addition, in the case of sewing, since a thick thread with high strength is attached, a large needle hole is opened in the sheet, and there is a problem that rainwater or the like invades from now on. There was a problem that it was easy to enter rainwater and reduced waterproof performance.

  Needless to say, when an interior bag is manufactured by stitching cloth sheets, the interior bag itself is made according to the size of the container, so the sewing work itself is not easy, but as described above Since it is a condition that it is manufactured with strength, a sheet having high rigidity is selected, and in addition to this, the sewing operation itself is extremely troublesome because it is sewn with a tough thread as described above. It was.

Therefore, in view of these points, the present invention has been developed for the purpose of improving it, and in particular, facilitates the joining of sheets forming an interior bag, and joins with a required strength, and has an impact resistance. It was proposed for the purpose of providing an excellent interior bag.
The conventional interior bag is formed by stitching cloth sheets as described above. However, the present invention joins the sheets by fusion, and at the same time attempts to integrate the joined portions, and at the same time, In other words, tough joining is achieved through proper joining to prevent intrusion of rainwater and the like from this joining portion.

For this reason, the present invention selects a thermoplastic synthetic resin sheet that can be thermally fused to the sheet material of the interior bag as a material, and at the same time, separates the fusion-bonded portion by using a unique bonding structure between the sheets. This makes it possible to provide a strong interior bag.
In particular, by selecting a thermoplastic synthetic resin material for the sheet material, the waterproofness of the interior bag itself is improved, and cargo is protected from the infiltration of rainwater entering the inside of the container. The interior bag for containers that can be transported hygienically without being soiled.

  In addition, the present invention is not limited to the selection of the sheet material of the interior bag, and the joining structure by heat fusion between the sheets, and when setting the interior bag inside the container by increasing the rigidity of the joining portion, the setting work is neatly performed. The interior is designed to stabilize the shape of the interior bag in the set state, and to prevent deformation when the cargo is thrown in to prevent damage to the bag due to the pulling of the cargo. To provide a bag.

  The present invention also includes an attachment means for suspending or fixing the interior bag at the joint between the seats, and suspending or fixing to the locking ring provided inside the container via the attachment means. It is an object of the present invention to provide an interior bag for a container that can be set in a container in a stable state.

  In order to achieve the above object, the present invention provides a container interior bag formed in a rectangular parallelepiped shape adapted to the internal shape of a container, and includes a front, a rear surface portion, an upper surface, a lower surface portion, and a left and right side surface portion constituting the bag main body. Are formed from a heat-sealable sheet material, and the fighting edges of these face parts are joined together by heat fusion, while at least the left and right edge parts of the upper surface part of the bag main body The upper edge portions of the left and right side portions that fit together are aligned with each other in the direction of the edges and overlapped in a contact surface shape, and further, the overlapping portions are folded and overlapped into four layers to be integrally heat-sealed, An object of the present invention is to provide an internal bag for containers, wherein reinforcing joints are provided along the left and right edges of the upper surface portion (the invention according to claim 1).

  According to this invention, since the sheet material forming the bag main body can be joined by heat fusion by selecting the material that enables heat fusion, it is possible to perform integral joining, so rainwater from the joint, etc. As a result, it is possible to obtain a waterproof effect on the seat itself, so that it is possible to provide an interior bag with excellent watertightness.

  In addition, when the interior bag is set inside the container, at the left and right edges of the upper surface of the bag, which is required to have the highest strength in the suspending operation, the contact of the sheet on the upper surface and the left and right side surfaces determines the direction of the edge. Align and overlap the contact surface, and then heat-seal the overlapped contact surface part in half so that the sheets become four layers, and form a reinforcement joint along the left and right edges Therefore, it is possible to make an interior bag with sufficient strength when suspended in a container using this reinforcing joint, and to ensure a stable set state. Become.

Of course, the reinforcing joints at the left and right edges of the upper surface part are in a completely watertight structure due to the quadruple fusion bonding, and can prevent rainwater and the like falling on the upper surface part to prevent intrusion. it can.
On the other hand, since this portion becomes thick due to the polymerization of the sheet at the reinforcing joint, and the rigidity is increased along the length direction of the edge, it is unfolded from the folded state when the container is set. Sometimes it will support this unfolded state, helping to work with less sag.

  Also, the present invention provides a method in which the left and right edges of the lower surface portion of the bag main body and the lower edge portions of the left and right side surfaces that collide with each other are overlapped in a face-to-face shape with the direction of the edges aligned. The mating portion is further folded twice to form a quadruple state, and this is integrally heat-sealed, and lower reinforcing joints are provided along the left and right edges of the lower surface portion. The object is to provide an interior bag for a container (the invention according to claim 2).

  According to this invention, the entire bag main body is formed by forming the reinforcing joints along the left and right edges of the lower surface in addition to providing the reinforcing joints along the left and right edges of the upper surface of the bag main body. In addition, when both edges of the lower surface portion are used as a base point for fastening to the container, the fixing device can be firmly attached.

  Further, the present invention is for a container characterized in that a reinforcing core material is wound between overlapping portions forming the reinforcing joint portion to form an enlarged diameter reinforcing portion along an edge of the reinforcing joint portion. The object is to provide an interior bag (the invention according to claim 3).

  According to this invention, the expansion diameter is obtained by winding the reinforcing core material such as a rope around the reinforcing joint formed along the left and right edges of the upper surface part or the left and right edges of the lower surface part. As a result, the strength and rigidity of the reinforcing joint are increased. As a result, the strength of the bag main body is increased, and at the same time, the bag main body is set in a suspended manner inside the container. In this case, it is possible to keep the figure developed in a rectangular parallelepiped shape and to suppress the occurrence of wrinkles due to drooping.

  Further, the present invention provides an interior bag for a container, characterized in that a through hole for attaching a lifting tool is provided at a front end portion and a rear end portion of a reinforcing joint portion formed along left and right edges of the upper surface portion. (Invention according to claim 4).

  According to the present invention, a through hole for attaching a lifting device is provided in a reinforcing joint having increased strength by polymerizing and integrally bonding sheets, and the container of the container is provided with the lifting device passed through the through hole. Because it is fastened to the retaining ring provided on the inner wall, even if a large load is applied to the bag main body due to the loading of cargo, the attachment part of the hanging tool will not be broken and fall off, so that stable suspension The installed state, that is, the set state can be maintained. Of course, since the suspension is attached to the reinforced portion, it is possible to prevent the bag main body from being damaged, and it is possible to prevent the leakage of cargo and the intrusion of rainwater.

  Further, the present invention provides a container interior characterized by providing through holes for attaching a connector to the front end portion and the rear end portion of the reinforcing joint formed along the left and right edges of the lower surface portion. The object is to provide a bag (the invention according to claim 5).

  According to the present invention, the reinforcing joint provided along the left and right edges of the lower surface portion is provided in the same manner as when the through holes for attaching the lifting tool are provided to the reinforcing joint portions formed on both edges of the upper surface portion. Since the through holes for attaching the connector to be fixed to the container are provided at the front and rear ends of the bag, this connector can be firmly fixed, and even when a strong tensile load is applied, It is possible to prevent things from being torn off.

  In addition, the present invention provides a suspension or fixing connector that supports a slidably slidingly supported holder on a swelled reinforcing portion formed on the reinforcing joint, and hangs on a retaining ring provided on the inner wall of the container. It is in providing the interior bag for containers characterized by attaching (invention of Claim 6).

  According to the present invention, a holder for attaching a hanging tool or a fixing connector to be hooked on the retaining ring of the container by using the enlarged diameter reinforcing portion in the reinforcing joint is installed, and the holder is further attached to the expanded diameter. Since it can be freely moved along the part, the suspension tool or the connection tool provided in the interior bag can be made to correspond appropriately to the locking ring provided in advance at a fixed position of the inner wall part of the container. Therefore, when the bag main body is set in the container, if the positional shift between the two occurs, the positioning is absorbed by the movement of the holder, and the bag main body can be suspended and fixed in a stable state. .

When not in use, the interior bag according to each of the above-described inventions is appropriately folded and collected into a flat state and stored in a cardboard case or the like. And when using it, it will be taken inside the container in the folded state.
For the bag-based deployment, the front part is fixed by hanging or tying the suspensions and connectors provided at the four corners of the front part, which are opened from the front part side, to the retaining rings provided at the four corners of the front wall of the container. Then, the bag main body is opened while being spread out so as to be pulled out toward the rear opening of the container, and in the middle of the opening, a lifting tool provided on the left and right edges of the upper surface part and a fixing tool provided on both edges of the lower surface part The connector is hooked and fixed to the lock ring of the container one after another, and finally the hanging tool provided at the left and right rear ends of the upper surface is hooked and set on the lock ring provided at the left and right corners of the container opening. It will be.

  In the above set for the container, the bag main body that is in a state where it is unfolded from the folded state by the suspension of the suspension is supported by the rigidity of the reinforcing joint formed on the left and right edges of the upper surface, and the suspension and suspension It will unfold and create a three-dimensional shape that fits the inner wall of the container, facilitating the set operation.

  In particular, the rigid support is advantageous in interior bags used for large containers up to 40 feet in length. When the bag main body becomes larger and it becomes a bag shape that is long in the front and back, the upper and lower relations are not determined by deployment, so the fixing work is confused, but in the present invention, the left and right edges of the upper surface portion Since the reinforcing joint formed along the upper and lower sides displays the vertical direction of the bag main body, the work is facilitated, and further, the three-dimensional form of the bag main body developed by the reinforcing joint is retained. Therefore, workability is further improved.

  The interior bag to be attached to the container through such operations is supported by a support bar that passes the reinforcing sheet attached to the rear surface part to the opening of the container, and in this state, the cargo input to be opened at the upper part of the rear surface part Grain such as grain is loaded from the mouth and loaded, and then the door of the opening is closed to complete the loading operation.

  In addition, in manufacturing the interior bag of the present invention, a method of joining the respective surface portions constituting the main body of the bag by means of heat fusion is adopted, so that the sheets forming these surface portions are joined by heat fusion. A thermoplastic synthetic resin sheet to be made is selected, but at this time, the sheet itself does not have to be a synthetic resin as a whole. For example, the surface of the fabric sheet base material by weaving may be subjected to resin processing to form a resin film, and heat fusion between the sheets may be possible, and is within the selection range.

   The interior bag of the present invention is configured and used as described above, and each surface portion forming the bag main body is formed by a water-resistant sheet made of a synthetic resin, and at the same time, each surface portion is thermally fused. Because it is integrally joined to the contact surface by joining by wearing, it is possible to effectively prevent intrusion of dust, such as rainwater, and the sheets are integrated by the contact surface connection, so a tough interior bag And can be effectively prevented from being damaged by being brought in during use.

  In addition, the interior bag of the present invention is configured to further fold the sheet that contacts the left and right edges of the upper surface portion of the bag main body, and in addition to the left and right edges of the lower surface portion, so as to overlap four times. Since the overlapped portion is heat-sealed to form a reinforcing joint, a thick rigid reinforcing portion is formed along the edge where the upper surface and the left and right side portions or the lower surface and the left and right side portions meet each other. Will be made. As a result, it is possible to appropriately give rigidity to the flexible interior bag made of a sheet, and therefore, it is possible to facilitate the attaching operation to the container. In addition, since the three-dimensional shape is maintained along the inner wall surface of the container when it is set, it can be stably set without causing any bias to the container when the cargo is loaded, and can be used. .

  In the interior bag according to the present invention, since the reinforced portion is formed by winding a reinforcing core material such as a rope in the reinforcing joint, the strength and rigidity of this portion are further increased, and the tough interior The bag can be provided, the workability at the time of wearing is enhanced, and the maintenance of the three-dimensional shape at the time of setting can be further enhanced.

  Further, the bulging diameter reinforcing portion serves as a means for attaching a holder for a suspension tool or a fixing connector, and further supports the holder so that it can move freely along the length direction, so that it is in advance at a fixed position of the container. It is possible to approach the optimum position through movement with respect to the provided locking ring, and the interior bag can be fixed and set to the container via these suspensions and fixing connectors at the most stable position.

It is the partially broken perspective view which showed the figure developed at the time of use of the interior bag concerning the present invention. It is the disassembled perspective view in which a part was missing for explaining each part of an interior bag. It is a vertical side view in the state which the latter half part of the bag main part decomposed | disassembled. It is a perspective view of the rear upper half part of a bag main part. It is the expansion center longitudinal cross-sectional view which abbreviate | omitted one part of the bag main body. It is a partial expanded vertical side view explaining the suspended contact state of the interior bag with respect to a container. It is a disassembled perspective view explaining the relationship between the expansion diameter reinforcement part of the reinforcement junction part formed in a bag main body, and a holder. FIG. 2 is an enlarged longitudinal sectional view of a part for explaining a joining state of reinforcing joints between edges of an upper surface portion and a side surface portion of a bag main body and a state of peeling by receiving an external force, and FIG. Fig. (B) shows the state where the side surface portion is pulled and the bonding with the upper surface portion is peeled off, and Fig. (C) shows the state where the side surface portion is further pulled and separated so that the bonding with the upper surface portion is still maintained. Indicates the state to be performed.

The accompanying drawings show an embodiment of an interior bag according to the present invention. The present invention will be described below based on the embodiments shown in the drawings, and the features thereof will be clarified. .
In the drawings, reference numeral 1 denotes an interior bag according to the present invention, and 2 denotes a bag main body.
The bag main body 2 is formed in a rectangular parallelepiped shape having a length in the front and rear consisting of six face portions, and the size thereof is adapted to the internal shape of a general-purpose container (hereinafter simply referred to as a container) 3 to be used. It becomes.

  The front and rear surface portions 4 and 5 and the upper and lower surface portions 6 and 7 and the left and right side surface portions 8 and 9 constituting the bag main body 2 are made of a thermoplastic synthetic resin sheet. The edges that meet each other are joined together in the form of a contact surface by heat-sealing, and are integrally assembled to form a rectangular parallelepiped shape having a length in the front-rear direction as a whole.

FIG. 2 shows an exploded view of each surface portion constituting the bag main body 2 of the interior bag of the present invention. Here, the front surface part 4 is divided into an upper half part 4a and a lower half part 4b, which are respectively connected to the front ends of the upper surface part 6 and the lower surface part 7, and the upper half part 5a of the rear surface part 5 is the upper surface part 4. The lower half portion 5b is continued to the rear end of the lower surface portion 7 and the remaining portion 5c of the upper half portion is formed as an independent sheet.
That is, in this embodiment, the sheet portions constituting the front surface portion 4 and the rear surface portion 5 are preliminarily cut and incorporated into a part of the upper surface portion 6 and the lower surface portion 7, respectively, while on the remaining part of the rear surface portion 5 The half part 5c is separated and independent from these.

  The form of each of the above surface portions is selected on the basis of the advantage in the case of cutting from the raw sheet of a sheet continuously produced in a strip shape, and the advantage in joining each surface portion, In particular, in each of the surface portions formed as described above, the bag is firstly joined between the upper surface portion 6 and the left and right side surface portions 8 and 9, and similarly to the lower surface portion 7 through the left and right side surface portions 8 and 9. This is due to the fact that the manufacturing of the main body is proceeding, and thereby the overall shape is created.

  This will be further described. The upper surface portion 6 and the left and right side surface portions 8, 9 are joined to the left and right edge portions 6a, 6b of the upper surface portion 6 and the upper edge portions 8a of the left and right side edge portions 8, 9. , 9a are brought into contact with each other so that their respective edges are aligned in the same direction, thereby forming a portion that overlaps with a predetermined width along the edge, and further overlapping this overlapped portion in two to form a sheet. Make 4 sheets. After that, the upper surface portion 6 and the left and right side surface portions 8 and 9 are joined by heat-sealing in a contact surface shape so as to be integrated in this overlapped state. By this thermal fusion bonding, the edge-shaped reinforcement joints 10 having a thickness along the length direction are formed on the edges 6a and 6b of the upper surface part 6.

  5 to 8 show a joined state between the upper surface portion 6 and the left and right side surface portions 8 and 9, and a reinforcing joint portion 10 formed by this joining. Further, in the formation of the reinforcing joint 10 here, when the two-layered sheets are folded into four-layered sheets, the rope-made reinforcing core material 11 is rolled up and wrapped through the heat-sealing during the overlapping, It is shown that the swelled reinforcing portion 12 is formed along the end of the reinforcing joint 10 along the entire length.

  The swelled reinforcing portion 12 effectively acts to further increase the strength and rigidity of the reinforcing joint portion 10, and in the interior bag of the present invention, means for attaching a suspension or fixing connector as will be described later. Used as

  In this embodiment, since the upper half 4a of the front face 4 and the upper half 5a of the rear face 5 are continuously provided on the upper face 6 as described above, the upper half 4a, 5a In addition, a reinforcing joint 10 is formed by the same joint as described above between the edges of the left and right side surfaces 8 and 9 where the respective edges collide with each other, and at the same time, the reinforcing core member 11 is wound to expand the reinforced portion 12 will be formed.

  In this manner, the upper surface portion 6 and the left and right side surface portions 8 and 9 are joined together, and the lower surface portion 7 and the left and right side surface portions 8 and 9 are joined together at the edges 7a and 7b and 8b and 9b. Is performed by heat-sealing in the overlapped state in the same manner as described above, and the reinforcing joint 10 is formed along the both edges of the lower surface portion 7 so as to be thickened by polymerization of the same sheet as the reinforcing joint 10. The Then, when the core material 11 made of a rope is wound around the reinforcing joint 10, the expanded diameter reinforcing portion 12 is also formed.

  The reinforcing joint 10 provided with the swelled reinforcement 12 includes both edges of the lower half 4b of the front face 4 and the lower half 5b of the rear face 5 and the left and right side faces 8, 9 joined thereto. It will also be formed between the corresponding edges.

  On the other hand, at the edge where the upper half 4a and the lower half 4b that form the front face 4 collide with the joining of the upper and lower face parts 6, 7 and the left and right side faces 8, 9 in this way. The front edges 4 are heat-sealed in a state where the edges are overlapped and in contact with each other to form the front surface portion 4 mainly composed of the bag.

The sheet portion forming the upper half portion 5c of the rear surface portion 5 is assembled into the bag main body 2 after the joining of the respective portions is completed.
The independent upper half portion 5c is formed by separate processing because it is necessary to assemble the reinforcing sheet 13 for reinforcing the rear surface portion 5 and to open the cargo inlet 14 in the present embodiment. After the entire main body 2 is assembled, it is decided to incorporate it.

  The upper half portion 5c will be described in detail. The insertion port 14 is formed in the upper part of the sheet by cutting it into an inverted U shape, and the cut portion is a lid 15, and the lid 15 is connected to the connecting lower edge 16 as a fulcrum. Can be freely opened and closed, and the fasteners 17a and 17b are fastened to both edges of the separated inverted U-shaped edge, and the fastener 18 can be opened and closed by moving the slider 18 that slides on the teeth. I can do it.

A hook-like fastening piece 19 is attached to the upper half portion 5c along the width direction below the insertion port 14 so that the reinforcing sheet 13 can be connected in a suspended manner via the fastening piece 19. It is.
The reinforcing sheet 13 is provided with a connecting string 21 provided on the fastening piece 19 at the upper end portion 13a, and is supported along the width direction at two positions, a position close to the upper end portion 13a and a portion corresponding to the approximate center of the height. Bar mounting portions 24 and 25 having a cylindrical shape through which a bar (not shown) passes are provided in two stages.

  The independent upper half portion 5c of the rear surface portion is joined by heat-sealing the upper edge portion with the inner surface of the upper half portion 5a of the rear surface portion 5 and being in contact with the upper edge portion, and the lower edge portion. Are attached to the upper edge of the lower half 5b of the rear surface portion 5 in the same manner, and the left and right edge portions are joined to the rear edge portions of the left and right side surface portions 8 and 9, respectively. The bag main body 2 is assembled, thereby finally forming the rear surface portion 5 of the bag main body 2 and completing the whole.

In this way, after the upper half 5c is assembled into the bag main body 2 and completed, the reinforcing sheet 13 is attached to the back surface of the bag, and the connecting strings 20 and 21 are connected to each other.
FIG. 1 shows a state in which the reinforcing sheet 13 is connected to a completed bag main body 2 for use. At this time, the reinforcing sheet 13 has such a length that the lower end portion 13 b hangs down beyond the lower end portion of the rear surface portion 5.

  In the figure, 26 is a lifting device provided at four corners on the front and back of the upper surface portion 6 of the bag main body 2, and 27 is the bulge provided along the left and right edges 6 a and 6 b of the upper surface portion 6. It is an intermediate hanging tool that is slidably engaged with the diameter reinforcing portion 12.

The hanger 26 is an S-shaped metal hook, and is attached to the bag main body via a binding string 28 that is tied to the bag main body.
The binding cord 28 is tied to the front and rear ends of the reinforcing joint 10 provided along the edge of the upper surface portion 6, and is attached to attachment through-holes 29 formed therethrough. Attach to the front and rear corners of the bag main body that hits the four corners of the part 6. An eyelet member is attached to the attachment through hole 29 formed through the reinforcing joint 10 to reinforce the edge.

On the other hand, the intermediate hanger 27 supports the middle of the length of the left and right edges of the upper surface portion 6 with an interval, and is assembled to the holder 30 as shown in FIG.
The holder 30 is a synthetic resin component that integrally includes a sliding body 30a that is formed by cutting out one side of a cylindrical body to form a C-shaped cross section and a locking piece 30b that protrudes from the opposite side. A metal hanger 26 formed in an S shape is hung on a through hole 30c formed in the piece 30b.
The intermediate hanger 27 passes through the reinforcing joint 10 through the notch of the holder 30 and inserts the expansion reinforcing portion 12 into the hollow portion of the sliding body 30a so that the expansion reinforcing portion 12 is supported by sliding. By doing so, it can move freely along its length.

On the other hand, a fixing connector 31 for fixing the bag main body to the container 3 and a movable fixing connector 32 are attached to the lower surface portion 7 of the bag main body 2, that is, the bottom surface side, similarly to the hanging tools 26 and 27. It is done.
Here, the fixing connector 31 is formed of a tough string, and is formed at the front end and the rear end of the reinforcing joint 10 formed along the left and right edges 7a and 7b of the lower surface 7. The same mounting through hole 33 as the mounting through hole 29 is formed and attached thereto, and the movable fixing connector 32 is the same as the holder 30 in the intermediate suspension 27. It is formed by linking a connecting string to 30c.

  The interior bag of the present invention configured as described above is folded in a flat state by appropriately folding the bag main body 2 when not in use, and is stored and stored in a cardboard box or the like. Bring it inside and expand it here.

  The unfolded bag is first unfolded with the front surface portion 4 so as to follow the front wall of the container 3 as described above, and hanger 26 and 26 provided at the front end portions of the left and right reinforcing joint portions 10 and 10 on the upper surface portion 6. The fixing couplers 31, 31 provided on the front end portions of the left and right reinforcing joints 10, 10 of the lower surface portion 7 are fixed to the front wall of the container. The front surface portion 4 is fixed by being secured to a locking ring (not shown) provided at the left and right lower corners. After this fixing, the bag main body 2 is pulled out while being spread toward the rear opening of the container.

In conjunction with this drawing work, an intermediate suspension 27 provided in the middle of each of the left and right edges 6a, 6b of the upper surface portion 6 and the left and right edges 7a, 7b of the lower surface portion 7, and a lower fixing member The connecting tool 32 is successively hooked on a locking ring attached to the inside of the container 3 with a space therebetween, and the mounting work on the container is advanced while being spread and deployed.
At this time, the locking ring 34 attached to the corner of the container 3 is fixed in place in advance, but the intermediate suspension 27 and the fixing connector 32 can be freely moved by sliding the holder 30 respectively. Therefore, the bag main body 2 is supported at a position close to the locking ring by moving along the bulging diameter reinforcing portion 12 toward the locking ring 34 corresponding to each.

When the rear surface portion of the bag main body 2 is pulled out to the opening portion of the container, the hanging tools 26 and 26 provided on the upper left and right sides of the rear surface portion 5 that face the opening portion are provided on the upper left and right sides of the opening portion. The bag main body 2 is supported in a suspended state inside the container 3. Next, the lower end portion 13b of the reinforcing sheet 13 that hangs down along the rear surface portion 5 is inserted under the lower surface portion 7, and then a support bar is inserted into the bar mounting portions 24, 25 provided on the reinforcing sheet 13, Both ends are inserted into and supported by locking grooves formed along the left and right edges of the opening of the container, and the setting operation of the bag main body 2 is completed.
The reinforcing sheet 13 is placed in a state where the lower end portion 13a is in contact with the lower end portion 13a in advance, and can be automatically inserted between the lower surface portion 7 and the floor of the container 3 along with the suspending operation of the bag main body 2. You may do it.

  After the interior bag is set inside the container in this way, in actual use in recent years, the rear part of the container is lifted up when loading cargo, and is held upward with an inclination of about 45 °. It is carried out in a state where cargo such as grain is poured from the cargo input port 14 that has become.

  At this time, according to the interior bag of the present invention, the front and rear corner portions (corner portions) are firmly fixed to the container by the lifting tool 26 and the fixing connector 31, and at the same time the left and right sides of the upper surface portion 6 and the lower surface portion 7. Since the bag main body 2 is firmly fixed at an appropriate interval by a plurality of lifting devices 27 and a movable connecting device 32 provided along the edge portion, even if the bag main body 2 receives an impact due to the loading of cargo, this causes the inside of the container. A stable state can be maintained without shifting.

Loading of cargo into the interior bag is finished when the container is almost full, the inclination of the container is returned, and when it becomes horizontal, the fastener 17 is tightened to close the inlet 14.
Here, when the container is returned to the horizontal position, the loaded cargo moves toward the rear surface portion 5, and this surface is pushed backward to press the reinforcing sheet 13. As a result of this compression, the reinforcing sheet is tensioned between the support bar inserted into the upper bar mounting portions 24 and 25 and the lower end portion 13b inserted and fixed under the lower surface portion 7, and as a result, the rear surface portion. 5 will be supported through this tension. Then, the bulging toward the opening of the container is suppressed in a small range that does not contact the door, and the door closing operation for closing the opening of the container is facilitated.

  As described above, the interior bag 1 of the present invention can be set in a stable state with respect to the container, but the bag main body 2 of the interior bag 1 is molded entirely from a synthetic resin sheet. In addition to effectively preventing rainwater from entering, the joints that connect each surface part to each other are made into an integral joint structure by heat-sealing the contact surface of the sheet and this contact surface part. The problem of flooding from the hole can be effectively avoided.

  And, in the state where the sheet is brought into contact with the surface through the thermal fusion, sufficient strength can be obtained, and the joined portion is not damaged by pulling, and the bag main body can be stabilized. In addition, in the present invention, in particular, the corners of the bag main body that is most loaded during use, particularly the front and rear corners of the upper surface 6 and the left and right edges 6a and 6b, and the lower surface 7 are the same. Since the reinforcing joint portion 10 formed by superposition of the sheets is provided and strengthened at the corners, an interior bag with higher impact resistance can be obtained.

  Incidentally, FIG. 8 illustrates a peeled state when the reinforcing joint 10 is pulled. The reinforcing joint 10 formed at the joint between the upper surface portion 6 and the left side surface portion 8 is normally in the state shown in FIG. (A). In this state, the side surface portion 8 is formed by loading the cargo or moving the cargo during transportation. Is forcibly moved inside the container and is pulled between the upper surface portion 6 and this causes the separation of the joint portion. As shown in FIG. Only the joint portion of the portion 8 is peeled off, and the joined state is maintained without affecting the other portions of the reinforcing joint portion 10.

  FIG. 8C shows a state where the tension between the upper surface portion 6 and the side surface portion 8 is further tensioned and the load is concentrated on the joint portion. Thus, both are pulled in the plane direction in this way. Even if the contact occurs, the contacted joint portion is merely pulled in the surface direction, so it is not easily peeled off, the joined state can be maintained, and the bag main body 2 can be prevented from being damaged. .

  Therefore, the present invention can provide a robust interior bag as shown here, and the reinforcing joint 10 is made of a double and quadruple sheet of material and is thick. When the bag main body is expanded three-dimensionally because rigidity is added, this rigidity strengthens the waist of the bag main body and increases the strength of the entire bag, and at the same time when setting work inside the container through the expansion work, Since the shape can be maintained, the operation is facilitated.

  In addition, since a reinforcing core member 11 such as a rope is embedded in the reinforcing joint portion 10, further strength is ensured, and the expanded diameter reinforcing portion 12 formed by the embedded core member 11 is provided with a lifting tool 27. Since it is a means for attaching the fixed connector 32 and can be freely moved through the holder 30 that slides on the fixing device 32, the suspension device 27 that is connected to these containers at the strongest part of the bag main body, The fixed connector 32 can be attached. Therefore, since the connecting portion that receives the most tensile load when the bag main body moves is attached to the reinforcing joint 10 having the highest strength and the enlarged diameter reinforcing portion 12, damage from the attaching portion is effectively prevented. Will be able to.

In addition, although the sheet | seat made from the synthetic resin which can be heat-seal | fused as a sheet | seat raw material is calculated | required, the sheet | seat material which coat | covered resin on the cloth material which knitted the drawn yarn may be sufficient, for example. Furthermore, thermoplastic synthetic resin materials such as polyester, polyamide, polyvinyl chloride, and polyolefin are suitable as the synthetic resin material as the sheet material.
Further, the reinforcing core portion 11 forming the swelled reinforcing portion 12 may be a thick tape shape in addition to a lobe shape. What is required here is that a predetermined bulge can be formed in the reinforcing joint 10 along the length direction, and that the bag body 2 has a required flexibility that can be folded when folded. The material can be selected based on the above.

DESCRIPTION OF SYMBOLS 1 Interior bag 2 Bag main body 3 Container 4 Bag main body front part 5 Bag main body rear surface part 6 Bag main body upper surface part 6a, 6b Left and right edge of bag main body upper surface part 7 Bag main body lower surface part 7a, 7b Bag main body Left and right edges of the bottom surface of the bag 8 Left and right side surfaces of the bag main body 8a and 8b Upper and lower edges of the left side surface of the bag main body 9 Right side surfaces of the bag main body 9a and 9b Upper and lower edges of the right side surface of the bag main body 10 DESCRIPTION OF SYMBOLS 11 Reinforcement core material 12 Expansion diameter reinforcement part formed in reinforcement joining part 13 Reinforcement sheet | seat 26,27 Hanging tool 29,33 Mounting through-hole formed in reinforcement joining part 30 Holder 31 to slide on an expansion reinforcement part, 32 Fixing fixture

Claims (6)

In the container interior bag formed in a rectangular parallelepiped shape that matches the internal shape of the container,
The front, rear, upper, lower and left and right sides of the bag body are made of heat-sealable sheet material, and the opposing edges of each side are joined together by thermal fusion. On the other hand, at least the left and right edge portions of the upper surface portion of the bag main body and the upper edge portions of the left and right side surface portions that collide with each other are aligned in a face-to-face manner with the direction of each edge aligned, Further, the overlapping portion is folded into four layers, and a reinforcing core material is wound between the overlapping portions and integrally heat-sealed, thereby end edges along the left and right edges of the upper surface portion. A container interior bag , wherein a reinforcing joint portion having a swelled reinforcing portion is formed over the entire length of the left and right edges . 2. The container interior bag according to claim 1, wherein the left and right edges of the bottom surface of the bag main body and the lower edges of the left and right surfaces that abut against each other are in contact with each other with their ends aligned. In addition to overlapping in a planar shape, the overlapping portion is further double-folded into a quadruple state and thermally fused together, and reinforcing joints are provided along the left and right edges of the lower surface. An interior bag for containers characterized by 3. The container interior bag according to claim 2 , wherein a reinforcing core member is wound between overlapping portions forming the reinforcing joint portion, and an enlarged diameter reinforcing portion is formed along an edge of the reinforcing joint portion. Interior container bag. In container interior bag according to claim 1 or 3, provided front and holes for hanging member attached to a rear end portion of the reinforcing joint formed along the lateral edges of the upper surface portion, An interior bag for containers characterized by hanging hanging tools. The container interior bag according to claim 2 or 3, wherein a through hole for attaching a fixing connector is provided at a front end portion and a rear end portion of a reinforcing joint portion formed along left and right edges of the lower surface portion. An interior bag for a container, wherein the container is provided with a fixing connector hooked on the through hole. In container interior bag according to any one of claims 1 to 5, sliding freely sliding fit support holder to upset reinforcing portion formed in the reinforcing joint container inner wall to the holder An interior bag for containers, wherein a hanging tool or a connecting tool for fastening is attached to a retaining ring provided in the section.

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