JP2007131350A - Flexible liner for packing granular freight for container transport of freight - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible liner for container transport of granular freight suitable for package or transport. <P>SOLUTION: The flexible liner 1 for packing the granular freight has a flexible liner main body 45 which comprises a front surface wall 40, a back surface wall 50, a top surface wall 60, a bottom surface wall 70 and two side surface walls 80 and 90, and has an introduction opening 2, a through-hole opening 3 and a discharge opening 4 on the front surface wall 40; and a plurality of air-bags 7 and 7A attached to the outside of a corner in front of the bottom surface wall 80. Each of the air-bags 7 and 7A has an inequilateral hexagonal shape. When the air bags 7 and 7A are sufficiently expanded, each becomes an approximately triangle prism the tip of which is cut off. The approximately triangle prism pushes out the freight from the discharge opening 4 to decrease the remaining amount of the freight in the flexible liner main body 45. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a flexible liner for packing powdered or granular cargo. In particular, the present invention relates to a flexible liner for cargo packing used for container transportation.

  Typically, in freight packaging used for freight container shipping, the transport handler packs the freight as full as possible. This is especially the case for powdered or granular cargoes and requires large liners to package items with powdered or granular characteristics. However, a problem faced by transporters is that the liner is too long to move most of the cargo from containers using the prior art. Thus, special features including air bags are introduced to help push cargo out of the flexible liner.

  The details regarding the liner for packing cargo which is provided with the inflatable airbag located in the front wall and the side wall in the shape of a triangle are indicated (refer to patent documents 1). When fully inflated, the air bag attached to the front wall has no support that exerts pressure on the container wall, so the cargo inside the liner is pushed sideways, so the front wall of the container Maintain opening while unloaded. Typically, the remaining amount of cargo remains in the liner and it takes a long time to unload the entire amount of cargo.

Moreover, although it is attached to the two wall surfaces of a container, the detail regarding the airbag which does not have the valve apparatus which controls entrance / exit of air is disclosed (refer patent document 2). Control of pressurized air is performed manually. Therefore, it is almost impossible for the handler to do other tasks during loading and unloading operations. Furthermore, its triangular shape causes it to expand into a pointed drop shape when it is expanded. This results in a large amount of cargo accumulation at the pointed area connecting the airbag with the cargo packing liner.
US Pat. No. 5,489,037 US Pat. No. 6,481,598 B1

  The present invention is designed to overcome the above-mentioned drawbacks.

  The main objective of the present invention is the ability to handle the transport of larger volumes of bulk goods per transport by using a single liner, and draining the inner volume of the liner when fully inflated. Offers equipment-prepared packaging of cargo with powdered or granular characteristics for cargo container transportation, with the ability to conveniently and quickly unload cargo with the aid of airbags pushed down through openings It is to be.

  Another object of the present invention is to allow a flexible liner to operate without any manual control throughout its working life. It also has the ability to be used multiple times.

  In order to solve the above problems, a flexible liner according to the present invention is a flexible liner for packing powdered or granular cargo, and includes a front wall, a back wall, a top wall, and a bottom wall. A flexible liner main body for cargo packing comprising a side wall and having an introduction opening, a through-hole opening, and a discharge opening on the front wall, and a plurality of attached to the outside of the front corner of the bottom wall The airbag has a hexagonal shape with unequal sides, and when fully inflated, it has the shape of a triangular prism with a sharpened tip, and the shape of the triangular prism pushes the cargo out of the discharge opening. The remaining amount of the cargo in the flexible liner body is reduced.

  Further, in the flexible liner of the present invention, the plurality of airbags are composed of at least two types of airbags having different volumes, and are provided apart from each other at a front corner of the bottom wall. And

  Furthermore, in the flexible liner of the present invention, each of the plurality of airbags includes a flexible suction tube having an inflow / outflow valve device that controls the amount of air in the airbag, and a spiral that releases pressurized air. And a mold valve.

  Moreover, the flexible liner of this invention is provided in the junction part between the said front wall and the said side wall, and is provided with the flexible piece which has several through-holes located in a perpendicular direction.

  Furthermore, the flexible liner of the present invention includes a thick flexible piece provided at a joint portion between the front wall and the side wall.

  Also, the flexible liner of the present invention is provided on the upper surface wall, a support plate provided with a circular hole penetrating therethrough, a rubber string passed through the circular hole of the support plate, and the flexible liner Hook means comprising a hook for fixing the upper surface wall of the main body to a container on which the flexible liner main body is loaded is provided.

  Such a flexible liner of the present invention is particularly designed for packing various cargoes having powdery or granular characteristics. In addition, this flexible liner is similar to using a flexible piece attached to the joint between the front wall and each side wall of the flexible liner and between the front wall and the top wall. Designed to facilitate loading and unloading operations by using hooks attached to a flexible liner and providing an instant device mounted on the container. The flexible piece between the front wall and each side wall has two features. The first feature is a flexible piece that is arranged from the top surface to the bottom surface and has a plurality of vertically arranged through holes that are inserted to connect the metal shaft to the two side surfaces of the container. The flexible piece supports the flexible liner, maintains its shape, and helps to effectively prevent wrinkles, so that the cargo stayed in the wrinkles. Reduce remaining capacity issues. Without this feature, the buildup of cargo balance will eventually break through the flexible liner. The second feature is that the thick flexible piece is used to press flat against the side wall of the container, so that the container is protected from contamination by external materials and is flexible. It becomes easier and more effective to maintain a vacuum state between the wall surfaces of the liner. In addition, there is an unequal hexagonal airbag. When inflated, these airbags have a triangular prism shape with the tip cut off to help push the cargo through the opening in the bottom. The airbag is controlled by a valve device for controlling the ingress and egress of air, so that no human power is required for the operation of controlling this air flow.

  In addition, the airbag includes a spiral valve that can control and maintain the volume of pressurized air from the beginning of the loading process. This operating process assists final cargo recipients who are not equipped with an air pump. A fully inflated airbag performs the task of pushing cargo through the unloading opening, so that the ultimate cargo recipient may unload cargo without having to pump air into the airbag. it can. Once the cargo has been completely unloaded, the valve can be opened to exhaust all air and the airbag can be reused.

  The present invention relates to a flexible liner having a rectangular parallelepiped shape for packing powdery or granular cargo for container transportation. The flexible liner includes a front wall having two openings at the top, and when one of the openings is used to introduce cargo, the other functions as a vent. Moreover, the opening part for discharging | emitting cargo is provided in the low position of the front wall. The top wall of the flexible liner is fixed to the loading container by a hook connected to a corner portion of a side edge of the top wall through an elastic rubber string. A flexible piece is attached to the joint between the front wall and each side wall and the joint between the front wall and the top wall. The flexible piece attached between the front wall and each side wall has two important features. That is, the flexible piece has a vertical row of through holes into which the metal shafts are inserted in order to connect to both side surfaces of the loading container. Further, the thick flexible piece has a different fixing method with respect to the loading container. Two unequal hexagonal airbags are provided on the outer portion of the bottom wall near the front wall of the flexible liner. When fully inflated through a flexible tube provided with a valve device that controls the inflow and outflow of air from the airbag, the airbag takes the shape of a triangular prism with a sharpened tip. These airbags function to push cargo through the opening in the bottom. Once attached to each airbag, the outward air flow is controlled through a spiral valve.

  Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a flexible liner for containerized transportation of powdered or granular cargo with a flexible piece having a through hole at the junction between the front wall and each side wall. . FIG. 2 is a perspective view of a flexible liner for containerized transportation of powdered or granular cargo with flexible pieces at the junction between the front wall and the respective side walls. FIG. 3 is a side view of one of the folded airbags for attachment to the flexible liner shown in FIG. FIG. 4 is a side view of the other airbag folded to be attached to the flexible liner shown in FIG. FIG. 5 is a perspective view of an airbag that is sufficiently inflated and has a triangular prism shape with a sharpened tip. FIG. 6 is a plan view showing an axis along which the airbag is bent before being attached to the position shown in FIG. FIG. 7 is a perspective view of a hook that is passed through a base plate and connected with a flexible rubber strap that fixes the front wall of the flexible liner. FIG. 8 is a perspective view of the spiral valve that is tightly fixed to the airbag shown in FIGS. 3 and 4 and rolled up from the base.

  The flexible liner of the present embodiment illustrated and shown in FIGS. 1 to 8 is merely the best embodiment described below, and is not limited thereto.

  As shown in FIGS. 1 and 2, the flexible liner 1 for container transportation includes a flexible liner main body 45 and airbags 7 and 7A.

  The flexible liner main body 45 has a rectangular parallelepiped shape for packing powdery or granular cargo to be transported in a container, and can prevent the surface of the loaded container from being contaminated by the cargo or from being contaminated. Further, the flexible liner main body 45 can handle a considerable amount of cargo without being packed in individual small liners and loaded in a container. This means that the space in the container can be used for more cargo and can be packed into a significant amount of cargo.

  Other components in the present embodiment are airbags 7 and 7A having an unequal hexagonal shape in a folded state. Once the airbag is fully inflated, it assumes the shape of a triangular prism with the tip cut off, which is essentially a triangular or trapezoidal shape, and when fully inflated, it expands to form a pointed water drop shape. Different from the back. For this reason, a specific amount of cargo remains at the tip of the airbag. However, according to the airbags 7 and 7A of the present invention, when inflated, the airbag has an essentially triangular prism shape with a sharpened tip. Thereby, while the cargo packed in the inside of the flexible liner main body 45 can be extruded, the quantity of the cargo which accumulates in a corner part can be reduced.

  As shown in FIGS. 1 and 2, the flexible liner main body 45, which is a component of the flexible liner 1, includes a front wall 40, a rear wall 50, a top wall 60, a bottom wall 70, and a first side wall 80. And a second side wall 90.

  The front wall 40 includes two openings whose top ends are opened at the top of the front wall 40. One of the openings is an introduction opening 2 for introducing cargo, and the other is a vent hole. It is a through hole opening 3. Further, the front wall 40 includes a discharge opening 4 that discharges cargo from the flexible liner body 45 at a lower portion of the front wall 40.

  The flexible tube 12 is connected to a position near the back wall 50 from the first side wall 80 to the second side wall 90 along a horizontal line parallel to the bottom wall 70. A metal shaft (not shown) is inserted into the flexible tube 12 in order to firmly fix the flexible liner body 45 to the container.

  The hook means 75 is used to suspend the top wall 60 of the flexible liner body 45 from the container so that the flexible liner body 45 is not folded and damages the cargo therein. As shown in FIG. 7, the hook means 75 includes a hook 5, a support plate 17 having four circular holes 20 arranged in two rows two by two, and a rubber string passed through the circular holes 20 of the support plate 17. 6. The support plate 17 is provided on a transparent plastic plate 18 that is rotatably connected to the circular member 19 of the top wall 60. The flexible liner 1 can be loaded by the hook means 75. This is convenient for the user.

  As shown in FIGS. 1 and 2, the flexible piece 10 </ b> A is attached to the joint portion between the front wall 40 and the top wall 60. The flexible piece 10A fills the space between the upper part of the flexible liner 1 and the wall surface of the container and pushes back the front wall of the container, thereby preventing the flexible liner main body 45 from being contaminated by an external substance. Is.

  In order to fix the flexible liner main body 45 to the container, a flexible piece is attached to the joint between the front wall 40 and both side walls 70 and 80. This flexible piece has the following two characteristics.

  As shown in FIG. 1, this flexible piece is characterized in that it is a vertical flexible piece 10 that is attached to the joint portion between the front wall 40 and both side walls 70, 80. The flexible piece 10 in the vertical direction has through-holes 11 arranged in the vertical direction from the upper end to the lower end, into which metal shafts (not shown) connected to both side walls of the container are inserted. The flexible piece 10 in the vertical direction supports the flexible liner main body 45 and retains its shape, and prevents wrinkles to reduce the remaining amount of cargo left in the wrinkles. Without this feature, the build-up of the remaining cargo weight will result in damage to the flexible liner body 45.

  As shown in FIG. 2, this flexible piece is characterized in that it is a thick flexible piece 10 </ b> B that is attached to the joint between the front wall 40 and the side walls 70, 80. The thick flexible piece 10B fixes the flexible liner main body 45 to both side walls of the container by pushing the front wall of the container. After the air in the space left in the container is removed by a suction pump (not shown), all the wall surfaces of the flexible liner body 45 are pressed flat against the wall surface of the container. The thick flexible piece 10B prevents the container from being contaminated by an external substance, and helps to maintain a good vacuum state on each wall surface of the flexible liner body 45.

  Another component of the flexible liner 1 is the aforementioned airbag. The outer shape includes at least two types of airbags 7 and 7A having different sizes. As shown in FIG. 6, the airbags 7 and 7 </ b> A have an unequal hexagonal shape before being attached to the flexible liner main body 45.

  The airbag 7, 7 </ b> A includes a wide base portion 14 and a narrow base portion 100. The wide base portion 14 further includes a V-shaped heavy wall 110 inside. On the other hand, the narrow base portion 100 includes a flexible suction tube 8. The flexible suction tube 8 is attached to the flexible suction tube 8 and passes through an inflow / outflow valve device 13 that introduces pressurized air into the airbags 7 and 7A to control the flow of air regardless of artificial means. The air flow can be controlled. The wide base portion 14 can keep the volume of pressurized air in the airbag constant and can also have a function of causing air to flow out.

  As shown in FIG. 8, the spiral valve 9 includes a valve cap 120 that functions to control the flow of air in the airbags 7 and 7A, and a cylindrical valve base 22 having a spiral shape 21 on the outside. Prepare.

  The spiral valve 9 is attached to the airbags 7 and 7A by sealing in the circular line portion 23 with heat. Through the spiral valve 9, the internal pressure of the airbag 7, 7A is controlled and maintained. By rotating the valve cap 120 from the valve base 22 along the spiral shape 21, the pressurized air in the airbags 7, 7A is released.

  As shown in FIGS. 1 and 2, the airbag 7 is attached to the front wall 40 at the outer portion of the bottom wall 70 and the first side wall 80 of the flexible liner main body 45 by a double-sided adhesive tape (shown in FIG. 3). It is fixed at a close position. The airbag 7 has an unequal hexagonal shape in the folded state. On the other hand, when the airbag 7 is sufficiently inflated, the airbag 7 has a triangular prism shape with a pointed end that serves to push out cargo from the flexible liner body 45. Thereby, the remaining amount of cargo left in the corner portion of the flexible liner main body 45 can be reduced.

  As shown in FIG. 3, the airbag 7 is bent along a crease line 17 perpendicular to the wide base portion 14 when attached to the flexible liner 1. The airbag 7 is attached to the first side wall 80 and the bottom wall 70 with a double-sided adhesive tape provided along the boundary line 15 of the airbag 7, and is flexible at the boundary portion of the first side wall 80. It is fixed to the sex liner 45.

  As shown in FIGS. 1 and 2, the airbag 7 </ b> A smaller than the airbag 7 is placed outside the bottom wall 70 and the second side wall 90 of the flexible liner main body 45 by a double-sided adhesive tape (shown in FIG. 3). The part is fixed at a position close to the front wall 40. The airbag 7A has an unequal hexagonal shape in the folded state. On the other hand, when the airbag 7 </ b> A is sufficiently inflated, the airbag 7 </ b> A has a triangular prism shape with a pointed end cut out and plays a role of pushing out cargo from the flexible liner main body 45. Thereby, the remaining amount of cargo left in the corner portion of the flexible liner main body 45 can be reduced.

  As shown in FIG. 4, the airbag 7 </ b> A is bent along a crease line 17 perpendicular to the wide base portion 14 when attached to the flexible liner 1. The airbag 7 is attached to the second side wall 90 and the bottom wall 70 by a double-sided adhesive tape provided along the boundary 15 of the airbag 7, and is flexible at the boundary portion of the second side wall 90. It fixes to the property liner main body 45. FIG.

  Next, a method for using the flexible liner 1 will be described.

  In order to use the flexible liner 1, first, the flexible liner 1 is spread in a container. Subsequently, a metal shaft is inserted into the flexible tube 12 in order to fix the flexible liner 1 to the bottom of the container. The hook 5 is connected to the container at the fixed end of the hook 5. Thereafter, the cargo is introduced into the flexible liner body 45 through the introduction opening 2 for introducing the cargo. Then, in order to prevent the cargo from being discharged in reverse, the introduction opening 2 for introducing the cargo and the through-hole opening 3 which is a ventilation hole are closed. Subsequently, a flexible piece 10A that fills the space between the upper part of the flexible liner 1 and the wall surface of the container is provided at the front position of the container, and external substances pass through the flexible liner 1 to be contaminated. To prevent.

  In order to use the flexible liner 1 having the vertical flexible piece 10, a metal shaft (not shown) connected to the both side walls of the container is vertically inserted into the through hole 11 of the vertical flexible piece 10. Is inserted into the through hole 11 of the flexible piece 10 in the direction and fixed to the side wall of the container. Then close the container door.

  On the other hand, when the flexible liner 1 having the thick flexible piece 10B is used, when the air between the container and the respective wall surfaces of the container liner 1 is removed, the thick flexible piece 10B is placed on both side walls of the container. Press. Thereafter, all wall surfaces of the flexible liner 1 are pressed flat against the wall surface of the container. At that time, the container door is already closed.

  When the cargo of the container liner 1 is discharged, the discharge opening 4 is opened to facilitate the flow of the cargo. At the same time, the airbags 7 and 7A are sufficiently inflated. Thereby, the height of the bottom part of the container liner 1 changes, and the remaining cargo can be moved. When all the cargo is discharged, the valve cap 120 is opened to release the air in the airbags 7 and 7A. The airbags 7 and 7A that have shrunk and become smaller are reused.

The perspective view of the flexible liner provided with the flexible piece which has a through-hole in the junction part between a front wall and each side wall. The perspective view of the flexible liner provided with the flexible piece in the junction part between a front wall and each side wall. The side view of one airbag folded for attaching to the flexible liner shown in FIG. The side view of the other airbag folded in order to attach to the flexible liner shown in FIG. The perspective view of the airbag which exhibited the shape of the triangular prism which fully inflated and the tip was cut off. The top view which shows the axis line by which an airbag is bent before attaching to the position shown in FIG. The perspective view of the hook which the flexible rubber string which passes along a baseplate and fixes the front wall of a flexible liner was connected. FIG. 5 is a perspective view of a spiral valve that is tightly fixed to the airbag shown in FIGS. 3 and 4 and rolled up from a base portion.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Flexible liner, 2 ... Introduction opening part, 3 ... Through-hole opening part, 4 ... Discharge opening part, 5 ... Hook, 6 ... Rubber string, 7, 7A ... Air bag, 8 ... Flexible inhalation tube, DESCRIPTION OF SYMBOLS 9 ... Spiral type valve, 10 ... Flexible piece which has several through-holes arranged in perpendicular | vertical direction, 10A ... Flexible piece, 10B ... Thick flexible piece, 11 ... Through-hole, 13 ... Outflow / inflow valve apparatus, 17 DESCRIPTION OF SYMBOLS ... Support plate, 20 ... Circular hole, 40 ... Front wall, 45 ... Flexible liner main body, 50 ... Back wall, 60 ... Top wall, 70 ... Bottom wall, 75 ... Hook means, 80, 90 ... Side wall.

Claims (6)

A flexible liner for packing powdered or granular cargo,
A flexible liner main body for cargo packing comprising a front wall, a rear wall, a top wall, a bottom wall, and two side walls, the front wall including an introduction opening, a through-hole opening, and a discharge opening;
A plurality of airbags attached to the outside of the front corner portion of the bottom wall;
The airbag has a hexagonal shape with unequal sides, and when fully inflated, the airbag takes the shape of a triangular column with a sharpened tip, and the shape of the triangular column extrudes the cargo from the discharge opening, and the flexible liner body A flexible liner characterized in that the remaining amount of the cargo in the inside is reduced.   2. The flexible liner according to claim 1, wherein the plurality of airbags are formed of at least two types of airbags having different volumes, and are provided to be spaced apart from each other at a front corner of the bottom wall. .   Each of the plurality of airbags includes a flexible suction tube including an inflow / outflow valve device that controls an air amount in the airbag, and a spiral valve that releases pressurized air. Item 3. The flexible liner according to Item 1 or 2.   The flexible liner according to claim 1, further comprising a flexible piece provided at a joint portion between the front wall and the side wall and having a plurality of through holes arranged in a vertical direction.   The flexible liner according to claim 1, further comprising a thick flexible piece provided at a joint between the front wall and the side wall. A support plate provided on the upper wall and provided with a circular hole therethrough;
A rubber string passed through the circular hole of the support plate;
6. The hook means comprising a hook for fixing an upper surface wall of the flexible liner main body to a container on which the flexible liner main body is loaded. Flexible liner.

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