JP5283578B2 - Container interior bag - Google Patents

Description

  The present invention relates to an interior bag for a container that is used when transporting granular materials such as grains and powdered cargo using a general-purpose container.

It is widely known that general-purpose containers are used for transporting grains, etc., especially when transporting large quantities of grains, large general-purpose containers have a large capacity and can be stacked together. Therefore, it is suitable for marine transportation by ship and is widely used as an effective transportation means in terms of transportation cost.
Transportation using this general-purpose container is excellent in workability because loading and unloading of cargo can be done easily and quickly by tilting the container using mechanical equipment. It has become indispensable for current transportation.

  The interior bag is an indispensable auxiliary means for transportation using this general-purpose container (hereinafter simply referred to as “container”). By installing this inside the container, cargo such as grains can be stored. It enables direct loading, and at the same time protects the cargo from dirt inside the container and enables sanitary transportation.

This container interior bag is made of a cloth or synthetic resin sheet, and is formed into a rectangular parallelepiped bag with a length before and after conforming to the internal shape of the container. Expanded to the full, and the bottom surface that hits the bottom surface is spread over the entire floor of the container, and the surrounding four surfaces are attached to the side wall surface of the container, and are expanded into a three-dimensional shape along the inner wall of the container. .
And in the transportation of grain, etc., it is blown using a grain loading device from the cargo inlet formed on the rear surface of the bag facing the rear opening of the container, and when the bag is full, the container door is closed, It is used in the procedure of ending loading work.

  One problem in this cargo injection is how to support the back of the bag facing the rear opening of the opened container, which is generally pushed out by cargo loading as a conventional method. The rear part is received by a plurality of support bars that pass horizontally to the opening of the container, and the rear part is destroyed by the weight of the cargo due to leaning. To prevent it from being disturbed.

  The method of receiving the rear surface portion of the bag with a support bar and preventing the bag from being bulged rearward due to the weight of the cargo is an effective means, and is still employed in the mounting of most interior bags. However, the method of blocking the back of the rear part of the interior bag by directly supporting the rear part with the support bar is because it is necessary to support the rear part by using a large number of support bars to narrow the distance between the bars. It is necessary to prepare a large number of support bars. In addition, there is a problem that the transportation cost is increased for the preparation of the support bar. At the same time, the method of supporting the rear surface portion at a narrow interval, when opening the cargo discharge port by tearing the rear surface portion when unloading, the support bar that is passed at a narrow interval will prevent the expansion of the discharge port. Therefore, there was a problem that hindered quick unloading work.

In other words, in transporting grains, etc. by container, as described above, it is blown using a loading device when loading cargo, or by lifting the rear part of the container and pouring cargo from an upward loading port. When unloading, use a cutter to cut the back of the bag exposed by opening the container door and cut it into a horizontal letter using a cutter to form a discharge port, then lift the front of the container and tilt it. Using this slope, cargo is discharged from the discharge port at once, and the work is unloaded.
Therefore, if the discharge port is blocked by the support bar and is not sufficiently opened, it takes time to discharge a large amount of cargo and delays the operation.

  For this reason, the present applicant has succeeded in developing a means for effectively preventing the rear surface portion of the interior bag from being bulged while at the same time reducing the number of support bars to be used to a minimum. This is done by 1 or 2.

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

  In the inventions described in Patent Documents 1 and 2, the tension auxiliary sheet 13 is suspended from the middle of the height of the rear surface portion 10b of the interior bag 10 adapted to the internal shape of the container 1, and this bag is When setting in the container, two support bars are installed horizontally across the rear opening 2 of the container 1 at the upper end of the auxiliary tensioning sheet 13 arranged in parallel with the rear surface 10b and at two points in the middle of the height. 3 is fixed by inserting the lower end portion hanging down below the bottom surface portion 10e of the bag and sandwiching it between the floor and the bag to prepare for cargo loading.

  This interior bag has a lower end of the auxiliary tension sheet 13 to be inserted using the fact that the bottom surface portion 10e of the bag is pressed against the floor of the container by the cargo introduced from the cargo input port 12 opened at the upper portion of the rear surface portion 10b. The part is pressed and fixed, and thereby, a state of being stretched between the support bar 3 fixing the upper end part is created. Then, the auxiliary seat 13 is bulged together with the rear surface portion 10b by utilizing the state in which the rear surface portion 10b is pushed rearward in response to the cargo that is continuously input, and a tension state is created by fixing the upper and lower ends. The bulge of the rear surface portion 10b is suppressed by limiting the limit of the tension.

  Thus, since the interior bag described in Patent Documents 1 and 2 uses the tension of the tension auxiliary sheet 13 to suppress the bulging of the rear surface portion 10b, it is sufficient to have a support bar that secures this tension state. In fact, it can be supported by a single support bar that supports the upper end. For this reason, the number of supports is reduced compared to the interior bag that directly supports the rear surface part using a large number of support bars until then, and as a result, the back surface (outer surface) of the rear surface part is opened. It is supposed that a sufficiently wide discharge port can be formed without being obstructed by the support bar when the discharge port is cut when the cargo is unloaded. In addition, since the number of support bars can be reduced at the same time, the waste can be eliminated and the transportation cost can be reduced.

  The interior bag provided with the tension auxiliary seat described in the above-mentioned patent document is directly supported by attaching a support bar to the rear surface portion, and compared with the conventional interior bag that suppresses bulging due to cargo leaning. The improved interior bag has a tensioning auxiliary seat on the rear surface, which makes the structure of the interior bag more complex than the previous interior bag. There is a problem that manufacturing takes time.

Originally, this type of interior bag is intended to cover the inner surface of the container, avoid contamination due to contact with the cargo, and prevent leakage of the loaded cargo. It functions well. For this reason, it can also be manufactured by stitching together the sheets that are the materials.
However, in the improved interior bag provided with the tensioning auxiliary sheet, that is, the reinforcing sheet that reinforces the rear surface portion, a special structure is required in connection with the provision of the reinforcing sheet. It is difficult to cut the sheet material of this rear part in the same way as the other parts of the bag and assemble it into other parts. This causes a problem of increasing the manufacturing cost.

An object of the present invention is to improve the manufacturability and to propose an interior bag having a structure suitable for mass production, and at the same time, an interior for a container that is easy to handle, including set work inside the container. The purpose is to propose a bag.
Furthermore, the present invention can also be used to manufacture interior bags having different shapes, particularly sizes, by manufacturing a part of the interior bag independently and assembling it after forming the bag main part. The purpose is to provide an improved interior bag for containers that makes it possible.

  In order to achieve the above-described object, the present invention achieves the internal shape of the container by the left and right side portions and the upper surface portion, the front surface portion, and the lower surface portion that join the corresponding edge portions between the edge portions of the left and right side surface portions. While forming a bag main body portion that conforms to the above, a cargo input port is opened separately from the bag main body portion, and a rear surface portion that forms a connecting portion that connects the reinforcing sheet while avoiding the input port is formed. The present invention provides a container interior bag characterized in that a rectangular parallelepiped bag main body is formed by joining and assembling a peripheral portion of the rear surface portion to a rear opening of the bag main body portion (claim 1). The invention described.)

  According to the present invention, the upper surface portion, the front surface portion, and the lower surface portion are joined to the left and right side surface portions to form the main portion of the bag that conforms to the internal shape of the container. After forming a rear surface portion having a connecting portion for connecting the cargo input port and the reinforcing sheet, the rear surface portion needs to be pre-processed in advance by assembling the rear surface portion to the separately formed main body portion. It will be possible to provide a highly reliable interior bag for containers as well as to improve the efficiency of the work by manufacturing the surface part as a separate work.

The connection of the reinforcing sheet to the rear surface part takes various forms by selecting the connecting means, but in order to connect the reinforcing sheet to the rear surface part, regardless of the change of the connecting form, it corresponds to each form. The connected part is required.
In the present invention, by providing the connecting portion on the rear surface portion in advance, it becomes easy to attach the reinforcing sheet. Even when the structure of the connecting portion is complicated, the rear surface portion is in the form of a sheet. It is possible to form this easily, and therefore, the rear surface portion is formed independently, and then the rear surface portion is assembled to the main body portion of the bag, thereby having a rear surface portion having a complicated structure. Even if it is in an interior bag for containers, it can be easily manufactured, and this rear surface part can be assembled to the bag main body by joining the peripheral part, so that the overall productivity of the bag can be improved. In addition, it can be assembled firmly.

  Further, the present invention provides the left and right side surfaces and the upper surface portion, the front surface portion, and the lower surface portion, which form the bag main portion, corresponding to each other, and the rear opening edge and the opening edge of the bag main portion. The peripheral portion of the surface portion is to provide an interior bag for containers characterized in that the respective edge portions are overlapped in a contact surface shape and bonded together by heat fusion (claim 2). Invention.).

  According to the present invention, the left and right side edge portions, the upper surface portion, the front surface portion, and the lower surface portion, which form the bag main portion, face each other, and the edge portions that face each other in the face portion and the rear face portion. Since the surfaces are aligned with each other and bonded by heat fusion, it becomes possible to bond each surface portion in a watertight manner, thus effectively preventing rainwater and the like entering the inside of the container from entering through the bonded portion. be able to. At the same time, since the sheet material itself is integrally joined, a robust interior bag can be provided.

  In the present invention, the left and right side surfaces, the upper surface portion, and the lower surface portion constituting the bag main portion are in contact with each other so that the edges that are joined to each other are aligned in the same direction. An object of the present invention is to provide a container interior bag characterized in that a thickness reinforcing edge is formed over the entire length of the joining edge by folding the part into a four-layer structure and joining them together. The invention according to 3.).

  According to the present invention, the joining of the edge portions of the respective surface portions is further folded from the double state due to the mutual contact surfaces to be brought into contact with the quadruple state and integrated in this thick state. To form a thickened reinforcing edge, and this thickened reinforcing edge forms a core part in the interior bag made of sheet, and as a result, the bag is used inside the container in use. When the bag is unfolded, this thick reinforcing edge forms a skeleton and maintains its widened posture, facilitating the setting work on the container, and suppressing the slack of each side during setting, and Pulling can be prevented.

  Further, the present invention provides an interior bag for a container, characterized in that a core material is embedded along the length direction inside a four-layer structure at the thickness reinforcing edge portion to form an expanded diameter reinforcing portion. (The invention according to claim 4).

  According to the present invention, when the edge of the sheet material forming each surface portion of the bag is brought into contact with each other and joined together to form a thickness reinforcing edge, the thickness of the sheets overlaps multiple times. In this invention, the increase in strength and rigidity can be expected.However, in the present invention, the core material is caught in the thickness reinforcement edge formed by the above-described superposition, As a result, further strength and rigidity can be imparted, and a robust interior bag can be provided in a simple structure.

  Further, the present invention is characterized in that a slider including a fixing connector is slidably slidably mounted on the bulge reinforcing portion, and the fixing connector is freely movable at an arbitrary position of the thickness reinforcing edge. It is providing the interior bag for containers which was made (Invention of Claim 5).

  According to the present invention, since the fixing connector can be arbitrarily moved and confronted to the engaging portion provided in the container via the slider that slides on the enlarged diameter reinforcing portion formed on the thick reinforcing edge, the appropriate connecting and fixing is always performed. The state can be obtained, and it can be effectively avoided that the interior bag set inside the container is pulled.

  In the present invention, the upper and lower auxiliary rear surface portions are extended from the rear end portions of the upper surface portion and the lower surface portion constituting the bag main body portion, and the left and right edge portions of the auxiliary rear surface portions are rearward of the left and right side surface portions. Another object of the present invention is to provide an interior bag for a container which is bonded to an edge portion and has a rear surface portion faced between the auxiliary rear surface portions to be bonded and fastened (the invention according to claim 6).

  According to this invention, when assembling the rear surface portion from the back to the bag main body portion formed in a rectangular parallelepiped shape, the upper surface portion and the lower surface portion that form the bag main body portion with the upper edge portion and the lower edge portion of the rear surface portion. Since it is structured to be joined to each extending portion, it is easy to align the edges facing the joined portions into a contact surface shape, so that the joining operation can be easily performed and the rear surface portion can be easily formed. In addition, it can be reliably assembled to the bag main portion.

  The present invention also provides an interior bag for a container, characterized in that an upper end portion of a reinforcing sheet is fastened to a connecting portion of the reinforcing sheet on the rear surface portion and connected in a suspended manner ( The invention according to claim 7.).

  According to the present invention, since the connecting portion is provided in the rear surface portion in advance, the upper end portion of the reinforcing sheet can be fixed via the connecting portion, and the reinforcing sheet is connected in a suspended manner by this fixing. Can be hung along the outer surface of the rear surface portion, and as a result, the lower end portion of the reinforcing sheet can be automatically connected to a state in which it can be inserted under the lower surface portion constituting the bag main body portion. become.

  Further, the present invention is characterized in that the container is characterized in that the upper end portion of the reinforcing sheet is connected to the connecting portion of the reinforcing sheet on the rear surface portion via a connecting member so as to be freely movable within a required range. The invention is to provide an interior bag (the invention according to claim 8).

  According to the present invention, the upper end portion of the reinforcing sheet is connected to the connecting portion formed on the rear surface portion in a state where the upper end portion can be freely moved within a predetermined range. When the bag main body moves from a fixed position due to cargo loading or the like on the reinforcing sheet, and the rear surface portion is pulled along with this, the free connection state absorbs this pulling and the bag main body Unnecessary load on the part and further on the rear surface part is eliminated, and the damage or the like is avoided.

  The present invention also provides an interior bag for containers, wherein the connecting member connects the reinforcing sheet so as to be freely engaged and disengaged (the invention according to claim 9).

  According to the present invention, since the connecting member for fixing the reinforcing sheet to the connecting portion formed on the rear surface portion is configured to be freely disengaged, the reinforcing sheet is attached to the rear surface portion later, for example, the bag is used as a container. Even if it is assembled at the time of setting, or after the assembly, the connecting member can be tightened or loosened to adjust the moving range of the fastening position, and the optimum state at the time of setting can be obtained. .

According to the present invention configured as described above, the left and right side surface portions that form the main portion of the bag, and the upper surface portion and the front surface that are formed in a rectangular parallelepiped shape by joining the edge portions to the edge portions of these side surface portions. By assembling each surface portion of the head portion and the lower surface portion independently, the rectangular parallelepiped shape of the bag main body portion can be formed by simply joining the sheet materials forming these surface portions. On the other hand, the rear surface portion provided with the insertion port, the connecting portion of the reinforcing sheet, and the like can be easily formed in spite of the complicated structure because these processes can be performed in the state of the rear surface alone. Will be able to.
And since this invention was set as the structure which joins the main-body part and the rear surface part which were formed separately in this way, a bag main body can be formed easily and the whole structure complicates the manufacturability. Nevertheless, it can be increased.

  In the present invention, since the rear surface portion is formed separately in advance and assembled to the bag main body portion, the shape or structure of the rear surface portion can be freely designed. The structure of the part can be freely changed to suit the user's convenience. At the same time, the rear part is retrofitted to the main part. It can be used by attaching, and can be used for various types of interior bags.

  In addition, since the present invention has a structure in which the bag main body is assembled through the joining of the sheet material, it is possible to simplify the joining in a thick state by superimposing each face part at the joining, thereby increasing the thickness. There exists an advantage which can provide the interior bag provided with the required rigidity by forming a reinforcement edge part easily.

FIG. 3 is a partially cutaway perspective view illustrating a developed state when the interior bag according to the present invention is used. FIG. It is a vertical side view of the rear part of the bag main body in the state which removed the reinforcing sheet from the rear surface part. It is a vertical side view before joining a rear surface part to a bag main part. It is a fragmentary perspective view of the state where the back surface part was joined to the rear part of the bag main part. It is an expanded sectional view of the partial notch made into a cross section along the AA line of FIG. It is an expanded sectional view of the part explaining the attachment state with respect to a container. It is a disassembled perspective view explaining attachment of the connection tool for fixation to the thickness reinforcement edge of a bag main part. It is an expanded longitudinal cross-sectional view explaining the progress state of peeling of a thickness reinforcement edge part. It is the enlarged view made into the partial cross section explaining the attachment state of the hanging tool with respect to a thickness reinforcement edge part.

The accompanying drawings show an embodiment of an interior bag according to the present invention. Hereinafter, the present invention will be described based on the embodiments shown in these 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 has a rectangular parallelepiped shape having a length in the front-rear direction composed of six face portions, and the size thereof is an internal shape of a general-purpose container 3 (hereinafter simply referred to as “container 3”) to be used. It will be suitable for.

  The bag main body 2 is formed by using thermoplastic synthetic resin sheets as raw materials for 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, respectively. In the state where the edges that meet each other are in contact with each other, they are heat-sealed, and these are joined together and assembled into a rectangular parallelepiped shape having a length in the front-rear direction. .

  FIG. 2 is an exploded view of each surface portion constituting the bag main body 2 of the interior bag of the present invention. Here, as shown in the figure, the upper surface portion 6 and the lower surface portion 7 are formed of one continuous sheet with the front surface portion 4 as the center, and the rear end portion of the upper surface portion 6 and the rear surface of the lower surface portion 7 are further formed. Auxiliary rear surface portions 5a and 5b are respectively extended from the end portions, and the rear surface portion 5 for closing the back surface of the bag main body 2 to be described later is attached and attached thereto through these.

  In consideration of cutting from the raw material of the belt-shaped sheet as a raw material, each of the above-mentioned surface portions has reduced the number of joint portions accompanying cutting as much as possible, thereby improving manufacturing workability and reducing strength. I'm trying not to. And when joining each surface part, it can be joined integrally through a series of joining operations.

  More specifically, here, the three surfaces of the upper surface portion 6 and the lower surface portion 7 with the front surface portion 4 as the center are connected in series, so that the left and right edge portions of these three surfaces and the left and right side surface portions 8, The front edge 9 and the upper and lower edges 9 are joined together in an abutting manner, first from the left and right rear ends of the upper surface portion 6 toward the front end portion, and from the upper end portion of the front surface portion 4 toward the lower end portion, and further It is possible to simultaneously bond the five surface portions from the front end portion of the lower surface portion 7 toward the rear end portion, that is, by continuously bonding in a “U” shape. As a result, the formation of the main portion 2a of the bag is simply and strongly joined. It is needless to say that the joining order is the same even if it is performed from the lower surface portion 7 side, contrary to the above.

  Now, the above-described joining will be further described. The joining between the upper surface portion 6 and the left and right side surface portions 8 and 9 is performed by connecting the left and right side edge portions 8 and 9 to the left and right edge portions 6a and 6b of the upper surface portion 6, respectively. The upper edge portions 8a and 9a are brought into contact with each other so that the respective edges are aligned in the same direction, thereby creating a portion that overlaps with the required width along the edge portion, and further overlapping the overlapping portions in two. In addition, four sheets are stacked, and then, in this overlapped state, they are integrally heat-sealed, and the upper surface portion 6 and the left and right side surface portions 8 and 9 are joined. By this thermal fusion bonding, the reinforcing joint portion 10 having a thick strip shape is formed along the edge portions 6a and 6b of the upper surface portion 6.

  The left and right side surfaces 8 and 9 are joined to the front surface portion 4 and the lower surface portion 7 in the same manner. The left and right edge portions of the reinforcing joint portions 10 are also formed into thick strips. Will be formed over the entire length.

  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. Furthermore, here, in forming the reinforcing joint 10, when a two-ply sheet is folded into a four-ply sheet, a rope-made reinforcing core 11 is wound between the stacked sheets, and this is wrapped through the thermal fusion. The swelled reinforcing portion 12 is formed along the end edge 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, as described later, a suspension or fixing connector is attached. It is also used as a means.

  Further, in this embodiment, since the auxiliary rear surface portions 5a and 5b are continuously provided at the rear ends of the upper surface portion 6 and the lower surface portion 7 as described above, the edge portions of the auxiliary rear surface portions 5a and 5b are also provided. The reinforcing joint 10 is formed by the same joining as described above between the edges of the right and left side parts 8 and 9 that collide with each other, and at the same time the reinforcing core member 11 is wound to form the enlarged diameter reinforcing part 12. become.

On the other hand, the rear surface portion 5 that closes the rear opening 2b of the bag main portion 2a is assembled to the bag main portion 2a after the bag main portion 2a is completed, thereby forming the bag main body 2.
As shown in FIGS. 2 to 5, the rear surface portion 5 formed in an independent state has a cargo input port 13 formed in the upper half portion, and a connecting portion that holds the reinforcing sheet 14 below the input port 13. 15 is formed.

  The rear surface portion 5 will be further described. The insertion port 13 is formed in the upper half portion of the sheet, which is a material, by cutting it into an inverted U shape, and the separated portion is a lid 16, and the lower edge 17 connecting this is formed. The lid 16 can be freely opened and closed at a fulcrum. Further, each of the fasteners 18a and 18b is fastened along the cut-off inverted U-shaped edge, and the insertion port 13 can be opened and closed by operating the slider 19 that slides on the fasteners. It is.

The connecting portion 15 is formed of a synthetic resin sheet made of the same material as the rear surface portion 5 and is attached in a hooked shape under the inlet 13 by heat fusion in a state of being in contact with the outer surface, The connecting sheet 15 can connect the reinforcing sheet 14 in a suspended manner.
The reinforcing sheet 14 is provided with a similar connection string 21 to be connected to the connection string 20 as a connection member provided in the connection part 15 at the upper end part 14a, and further at two positions near the upper end part 14a and a substantially central part of the height. Bar mounting portions 22 and 23 having a cylindrical shape are formed so as to pierce a support bar (not shown) along the width direction.

  By the way, when the rear surface portion 5 is opened in an independent state and the connecting portion 15 is attached, the upper edge portion is in contact with the inner side of the auxiliary rear surface portion 5a. It is heat-sealed, and the lower edge portion is joined to the upper edge portion of the auxiliary rear surface portion 5b in the same manner, and the left and right edge portions are attached to the rear edge portions of the left and right side surface portions 8 and 9, respectively. By heat-sealing and joining, the bag main body portion 2a is assembled integrally with the rear opening 2b and closed. Then, by this assembly, the rear portion of the bag main body 2 is formed, and at the same time, the interior bag 1 of the present invention is completed.

After the completion of the interior bag 1, the reinforcing sheet 14 is attached to the rear surface portion 5, and the inner bag 1 is assembled by connecting the connecting strings 20 and 21 as described above.
FIG. 1 shows a state in which the reinforcing sheet 14 is assembled to the main body portion 2a of the completed interior bag 1 for use. At this time, the reinforcing sheet 14 has a lower end portion 14b of the auxiliary rear surface portion 5b. It will hang down beyond the lower end.

  In the figure, reference numeral 24 denotes a lifting device for suspending, which is a connecting and fixing means provided at the four front and rear corners of the upper surface portion 6 of the bag main body 2, and 25 is along the left and right edges 6 a and 6 b of the upper surface portion 6. An intermediate fixing hanger that is slidably supported by and supported by the swelled reinforcing portion 12 provided.

As shown in FIG. 10 in an enlarged manner, the hanger 24 is an S-shaped metal hook, and is attached by tying a binding string 26 to the bag main body.
The tying string 26 is passed through an attachment through hole 28 in which eyelets 27 formed through the front and rear ends of the reinforcing joint 10 provided along the edge of the upper surface portion 6 are attached, and the hanger 24 is tied by tying. It is firmly attached to the front and back corners of the bag.

On the other hand, a plurality of intermediate hanging tools 25 are prepared according to the length of the bag main body. The hanging tool 25 is used to hold and support the left and right edges of the bag upper surface portion 6 with a gap when the bag main body is attached to the container, as shown in FIGS. The holder 29 is assembled.
The holder 29 is made of a synthetic resin integrally having a sliding body 29a having a cutout portion 30 formed on one side of a cylindrical body and having a C-shaped cross section, and a locking piece 29b protruding from the opposite side of the cutout portion 30. It is a component, and has a structure in which a metal hanging tool 25 formed in an S shape is hooked in a through hole 29c formed in the locking piece 29b.

  As shown in FIG. 8, the intermediate hanger 25 has the reinforcing joint 10 inserted through the notch 30 of the holder 29, and the expansion reinforcing portion 12 is inserted into the hollow portion of the sliding body 29a. By slidingly supporting the reinforcing portion 12, it can be moved 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 connecting device 32 are provided on the lower surface portion 7 side of the bag main body 2, that is, on the bottom surface side. Is mounted (see FIG. 1).
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 attachment through-hole 28 is formed by attaching the same attachment through-hole to the attachment through-hole 28, and the movable fixing connector 32 is connected to the same holder 29 as the holder 29 in the intermediate suspension 25. It is decided to tie.

 The interior bag of the present invention constructed as described above is folded in a flat state when the bag main body 2 is not used and stored in a cardboard box or the like for storage or transportation and use. It is brought into the container 3 and expanded inside in a three-dimensional manner to be mounted along the inner wall surface.

  In the interior of the container, the interior bag 1 is first spread from the front surface portion 4 side so as to follow the front wall of the container 3, and hanger 24, 24 provided at the front end portions of the left and right reinforcing joint portions 10, 10 of the upper surface portion 6. The fixing coupling 31 provided at the front end of the left and right reinforcing joints 10, 10 of the lower surface 7 after hanging on and hanging from a locking ring 33 provided at the left and right upper corners of the front wall of 31 is fixed to a locking ring (not shown) provided at the left and right lower corners of the front wall of the container, thereby fixing the front surface 4 in a state of being attached to the front wall of the container 3. Then, after this fixing, the bag main body 2 is further extended so as to be pulled out toward the rear opening of the container.

This pull-out operation further includes the intermediate suspension 25 and the coupling 32 provided in the middle of the left and right edges 6a, 6b of the upper surface 6 and the left and right edges 7a, 7b of the lower surface 7 of the bag. The upper side and the lower side of the side wall of the side wall 3 are successively hooked on the locking rings 33 provided at intervals, and through this work, the attaching operation to the container is advanced while the bag is being unfolded.
At this time, the locking ring 33 attached to the corner of the container 3 is fixed in place in advance, whereas the intermediate hanging tool 25 and the fixing connector 32 slide the holder 29 to the meat. Since the position movement with respect to the thick reinforcing edge 10 is free, the enlarged diameter reinforcing portion 12 is moved toward the corresponding locking ring 33 and moved closer to each locking ring 33. The latch bag main body 2 is fixed at the position.

When the rear end portion of the bag main body 2 is pulled out to the rear opening portion of the container 3, the hanging tools 24, 24 provided on the upper left and right sides of the rear surface portion 5 are hooked on locking rings (not shown) provided on the upper left and right sides of the opening portion. 3, the bag main body 2 is hung in a wide state so as to be supported.
Next, the lower end portion 14b of the reinforcing sheet 14 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 22 and 23 provided on the reinforcing sheet 14, The both ends are inserted into and supported by locking grooves (not shown) formed along the left and right edges of the opening of the container, and the setting operation of the bag main body 2 with respect to the container 3 is completed.
The reinforcing sheet 14 is placed with the lower end portion 14a fixed in advance in contact with the lower surface portion 7 with a string 34 or the like, and the floor portion of the lower surface portion 7 and the container 3 is combined with the suspension work of the bag main body 2. It may be possible to automatically insert between the two.

After setting the interior bag inside the container in this way, in actual use in recent years, lift the rear part of the container when loading cargo and hold it with an inclination angle of about 45 degrees. The cargo such as grain is poured from the cargo loading port 13 which is directed upward.
In this charging operation, a cover piece 35 extending further from the auxiliary rear surface portion 5a is lifted and placed on the upper surface (roof) from the rear opening portion of the container 3, whereby the bag main body 2 and the container opening portion are separated. This prevents the cargo injected from the cargo input device from entering the upper surface of the bag.

  In the interior bag of the present invention, the front and rear corner portions (corner portions) of the bag main body 2 are firmly fixed to the container by the lifting device 24 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 it is firmly fixed at appropriate intervals by a plurality of lifting devices 25 and a movable connecting device 32 provided along the edge portion, it can also be displaced inside the container by an impact received by the bag main body 2 due to the loading of cargo. Therefore, it is possible to maintain a stable state.

Then, the loading of the cargo into the interior bag is finished when the container is almost full, and the fastener 17 is tightened to close the insertion port 13 when the inclination of the container is returned and becomes horizontal.
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 14.

  In response to this pressure, the reinforcing sheet 14 is tensioned between the support bar inserted into the upper bar mounting portion 22 and the intermediate mounting portion 23 and the lower end portion 13 b fixed by insertion under the lower surface portion 7. As a result, the rear surface portion 5 is supported through this tension, and as a result, the rear surface portion 5 is prevented from bulging out toward the rear opening of the container, and the bulging is stopped within a range not contacting the door. This obstructs the obstruction work of the door that closes the opening.

  The interior bag according to the present invention is configured and used as described above, but the left and right side surface portions 8 and 9 that form the bag main body portion 2a, respectively, and the upper surface portion 6, the front surface portion 4, and the lower surface portion. 7 are formed by joining them in advance to form the simplest shape of the bag. Separately from this, a rear surface portion 5 provided with the inlet 13 and the connecting portion 15 is formed to divide each work. Therefore, these can be formed efficiently, and the entire interior bag can be manufactured by combining the two after individually forming, so that there is an advantage that they can be manufactured easily and efficiently.

  In particular, the separate molding of the bag main body portion 2a and the rear surface portion 5 can immediately cope with the size of the interior bag to be manufactured. For example, the rear surface portion 5 manufactured for a large container is left as it is. It can be used as a rear part of an interior bag for a small container, and there is an advantage that it can be easily transferred between each other. Of course, in this case, the length of the front and back of the bag main body portion 2a changes according to the container to be used, but the size of the rear surface portion 5 on both sides is the same. Will be able to.

  Therefore, the interior bag 1 of the present invention has a disadvantage that the structure of the rear surface portion 5 is complicated and lacks manufacturability, compared to a bag of the type in which the rear surface portion is supported by a large number of conventional support bars. As described above, since this is manufactured independently and assembled to the bag main portion 2a later, it can be easily manufactured without any particular obstacle.

  On the other hand, the interior bag 1 of the present invention can be reliably and stably set to the container as described above, and at the same time, the bag main body 2 of the interior bag 1 is entirely made of a synthetic resin sheet. Intrusion of rainwater, etc. can be effectively prevented because it is molded from the material, and the joints connecting the surface parts to each other are integrated with a joint surface of the sheet and thermal contact between the contact surface parts. For this reason, it is possible to effectively avoid the problem of flooding from a needle hole by sewing as in the prior art.

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. It is possible.
In particular, in the present invention, the corner of the bag main body that is most loaded during use, in particular, the front and rear corners of the upper surface portion 6 serving as a suspension base point, and the left and right edges 6a and 6b, Since the sheet is reinforced by the reinforcing joint portion 10 formed by superposition of the sheets at the same corner portion of the lower surface portion 7, a strong and highly impact-resistant interior bag can be obtained.

  Note that FIG. 9 illustrates the state of breakage when the reinforcing joint 10 is pulled, that is, the progress of peeling. The reinforcing joint 10 formed at the joint between the upper surface 6 and the left side 8 is normally in the state shown in FIG. In this state, when the side part 8 is forcibly moved inside the container due to the input of the cargo or the movement of the cargo during transportation, the side part 8 is dragged between the top part 6 and this causes the separation of the joint part. As shown in FIG. 5B, only the joint portion of the side surface portion 8 that is heat-sealed at the joint portion receives a force in the opening direction, so that it peels off and spreads to the other portions of the reinforcing joint portion 10. The joined state is maintained without doing so.

  FIG. 9 (C) shows a state where the space between the upper surface portion 6 and the side surface portion 8 is further tensioned and the load is concentrated on the joint portion. If a state in which both are pulled in the plane direction occurs in this way, the contacted contact portion is pulled in the plane direction, so that it is difficult to peel off. Therefore, the joining state can be maintained, and the breakage of the joining can be avoided and the breakage of the bag main body 2 can be stopped.

  In addition, the present invention can provide a robust interior bag as shown here, and further, the reinforcing joint portion 10 is made of double and quadruple sheets of material, and is thick. Because the strength and rigidity of the bag are given, when the bag body is deployed in three dimensions, this rigidity will strengthen the waist of the bag body, increasing the overall strength of the bag and at the same time inside the container through the deployment work. When performing the setting operation, the rectangular parallelepiped shape can be automatically maintained by the expansion operation, so that the setting operation can be made extremely easy. In particular, the improvement in workability due to this rigidity is given to increase work efficiency and increase practical value when two or more workers use a large container interior bag. .

  In addition, since a reinforcing core material 11 such as a rope is embedded in the reinforcing joint 10, further strength is ensured, and the expanded diameter reinforcing portion 12 formed by the embedded core material 11 is as described above. It is possible to move freely through a holder 29 that slides on the suspension tool 25 and the fixed connector 32, so that the bag is connected to these containers at the strongest part. The hanger 25 and 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 portion 10 and the expanded-diameter reinforcing portion 12 that have the highest strength, damage from the attaching portion can be prevented. It will be a thing.

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. Here, if the synthetic resin material as a sheet material is specifically mentioned, thermoplastic synthetic resin materials such as polyester, polyamide, polyvinyl chloride, and polyolefin are suitable.
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 2a Bag main body part 2b Bag main body rear part opening 3 Container 4 Bag main body front part 5 Bag main body rear surface part 5a, 5b Bag main auxiliary back part 6 Bag main body upper surface part 6a, 6b Bag Left and right edges of upper surface of main body 7 Lower surfaces of main body of bag 7a, 7b Left and right edges of lower surface of main body of bag 8 Left side surface of main body of bag 8a, 8b Upper and lower edges of left side surface of main body of bag 9 Right and left side portions 9a, 9b Upper and lower edges of the right side portion of the bag main body 10 Reinforcement joint portion 11 Reinforcement core material 12 Expanded diameter reinforcement portion formed in the reinforcement joint portion 13 Cargo input port 14 Reinforcement sheet 15 Reinforcement sheet 15 Connecting part 16 Input port cover 24, 25 Suspension tool 28 Mounting through-hole formed in the reinforcing joint 29 Suspension tool holder 31, 3 to be slid on the expansion reinforcement part 2 Fixing fixture

Claims (1)

Over between the edge of the side surface portion and the right and left side portions of the left and right, upper surface portion joining the corresponding edge portions to each other, the front portion, the length in the longitudinal direction conforming to the internal shape of the container by the 5 surface of the lower surface portion a bag main portion forming a Ijika side body shape, opened cargo inlet above section, provided with a connecting portion for connecting the reinforcing sheet formed as a separate body in the middle of the height avoiding-projecting inlet a surface portion formed separately after made, assembled to face the rear surface portion to the rear opening of the bag main body portion, a container interior bag by forming a Luba Tsu grayed mainly a six surface The upper surface portion, the front surface portion, and the lower surface portion that form the bag main portion are formed of a single continuous sheet, and upper and lower auxiliary rear surface portions are extended from the rear end portions of the upper surface portion and the lower surface portion. And the left and right edges are joined to the rear edges of the left and right side surfaces, respectively. On the other hand, the rear surface portion is faced between the auxiliary rear surface portions, the upper and lower edges thereof are bonded and fixed, and the left and right side edge portions of the rear surface portion are bonded and fixed to the rear edge portions of the left and right side surfaces. By doing this, the interior bag for containers which closed the said rear part opening part .

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