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WO2013048337A1 - Tube de positionnement de charge de récipient et ensemble chemisage - Google Patents

Tube de positionnement de charge de récipient et ensemble chemisage Download PDF

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Publication number
WO2013048337A1
WO2013048337A1 PCT/SG2012/000241 SG2012000241W WO2013048337A1 WO 2013048337 A1 WO2013048337 A1 WO 2013048337A1 SG 2012000241 W SG2012000241 W SG 2012000241W WO 2013048337 A1 WO2013048337 A1 WO 2013048337A1
Authority
WO
WIPO (PCT)
Prior art keywords
liner
container
load
positioning tube
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SG2012/000241
Other languages
English (en)
Inventor
Charles Morse NELSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INTERNATIONAL LIQUID PACKAGING SOLUTIONS Pte Ltd
Original Assignee
INTERNATIONAL LIQUID PACKAGING SOLUTIONS Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INTERNATIONAL LIQUID PACKAGING SOLUTIONS Pte Ltd filed Critical INTERNATIONAL LIQUID PACKAGING SOLUTIONS Pte Ltd
Publication of WO2013048337A1 publication Critical patent/WO2013048337A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • B65D25/16—Loose, or loosely-attached, linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers

Definitions

  • the present invention relates generally to a container load-positioning tube and liner assembly which provides for a method of positioning and holding a folded liner in a vertical position within the container or drum prior to product loading and during product loading and discharging.
  • Containers such as steel drums and tanks or the like are typically used to transport or ship products or materials of various forms such as solid, granular and liquid products.
  • drums and other similar containers presents a possibility of contamination to occur particularly if the containers are made of metal which is susceptible to rust, corrosion and flaking off of the protective inner liner from abuse or mishandling and even leaking.
  • the cost of reusing steel or plastic moulded drums and similar containers is generally high due to environmental concerns for the proper disposal of the residue in the empty drums and disposal of the wash water used in reconditioning the drums.
  • High-end liquid products such as food-grade and pharmaceutical grade products are normally restricted from being shipped in reconditioned or second hand drums.
  • liners made of inert material such as thermal plastics are employed within the containers to form a protective covering preventing contact between the product and the walls of the containers.
  • the containers that are used to transport liquid products or materials are either open-topped containers with a removable top or closed top containers that are provided with a small bung and vent hole for the liquid product that are to be transported to be filled into.
  • a method is disclosed where the liner is in the form which may be inserted into a drum through the small bung hole and thereafter readily air-inflated into contact with the interior walls of the drum and the liquid product to be transported are subsequently filled into the inflated liner located within the closed container.
  • the bung hole is relatively small in closed containers and the liner being larger than the standard drum opening inserting the liner (although in its folded deflated form) through the sharply threaded bung hole will certainly damage the liner.
  • the liner has to be very thin in order for it to be folded down to a size smaller than the bung hole to facilitate insertion, the liner is therefore susceptible to tear or damage not only during insertion through the bung hole but also by any interior imperfection in the steel drum such as rust or roughness of the surface. Being thin the liner is also susceptible to tear by the weight of the product or material as the products and materials flow in. Further the use of air to inflate the liner before liquid products or materials are filled in will inevitably add contaminants to the product or material that is eventually filled into the drum for shipment or transportation. In the case of open topped drums and similar containers with, removable tops the use of a thin-wall liner is also problematic in that the liner must be inflated properly.
  • Lay-flat liners must be supported and adjusted to prevent the corners from being trapped as the product or liquid flows in as there is currently no form of control when the product or material is filling into the liner to ensure that a proper footprint on the floor of the drum is developed thereby facilitating an optimum fill as without the proper control the product or material entering the liner will be subjected to free fall and in the case of liquids, splashing and foaming will result due to such free fall.
  • the prevention of free fall is also to ensure that the product does not override any part of the liner folds with the product itself thereby trapping some of the liner under the product thus creating an incomplete fill and this could rupture the liner from loading forces.
  • the liner For the drum to fill properly the liner must not be allowed to twist or be pushed out of a vertical position by liquid product as it flows into the liner, otherwise the corners or side walls will become trapped by the liquid and thereby the liner will be out of position for a proper loading. This will result in less that a total fill and even rupture of the liner.
  • US Patent No. 3,167,210 discloses a device for securing the filler neck of a container liner to the periphery of an opening in the container through which the filler neck protrudes that prevents the neck of a flexible liner from being accidentally withdrawn when the container is subjected to mechanical shock whilst US Patent No.
  • 3,409,201 discloses a plastic liner with its neck that projects outwardly through an opening in the top of the drum provided with a series of circumferentially disposed lugs having top cam surface permitting progressive flexing of the lugs when the neck is inserted through the drum opening for securely engaging surfaces on the said drum adjacent the opening so as to prevent the liner from falling into the drum interior and to effectively prevent leakages of liquid product during filling.
  • US Patent 5,046,634 discloses a drum liner assembly focusing on a fitting that mates with a specially cut hole on the lid of the drum capable of preventing twisting of liner in the drum.
  • the present invention provides a container load-positioning tube and liner assembly for use in steel and plastic and other type semi-open end drums or open end drums provided with at least a load bridge across the top of the drum to support the container load-positioning tube and liner assembly during filling to alleviate the above said drawbacks by having a load-positioning tube assembly and staging sleeve that are capable of directing the liquid products to the bottom of the container but preventing free fall or direct impact of the products or materials on the bottom of the container as the products are filling in whilst able to cause the liner to gradually open due to the hydraulic pressure exerted by the rising product or materials to develop a proper footprint on the floor of the drum thereby ensuring an optimum fill while at the same time reducing the carbon footprint of recycling steel, plastic and other type drums and containers.
  • Another object of the present invention to provide a container load positioning tube and liner assembly that is capable of being used in collapsible and reusable plastic containers thus saves energy and cost in recycling and is advantageous for the environment. It is yet another object of the present invention to provide a container load-positioning tube and liner assembly that is capable of being used in steel containers thus eliminating the conventional one-way shipment using steel containers provided with internal hard linings for food grade products.
  • Yet a further object of the present invention is to provide a container load-positioning tube and liner assembly that allows optimum discharge of the contents of the container and eliminates residue as the liner is removed from the container when emptied.
  • a container (2) for storing and transporting product comprising; at least an opening on the container top; at least a liner (10) for placement into the said container (2); characterized in that the opening on the container top allows a hanger plate (6) to be provided; further characterized in that at least a container load-positioning tube and liner assembly (4) is provided on the hanger plate (6) of the container (2) to control the unfolding of the liner (10) in stages as the product is loaded into the container.
  • a method of constructing a container load-positioning tube and liner assembly comprising steps of; laying flat a liner (10) provided with at least liner fitting (12); inserting at least a load-positioning tube assembly (8) into the liner
  • a method of effectively filling up the container (2) with products using a container load-positioning tube and liner assembly (4) to control the unfolding of the liner (10) comprising steps of; attaching a container load-positioning tube and liner assembly (4) to a hanger plate (6) prior to securing the said hanger plate (6) to a container (2) having an opening on top; filling up the liner (10) with products from a product loading hose (18) through the load-positioning tube (8A); gradually causing the unfolding of the bottom section of the liner (10) in stages as the lower staging sleeve (14B) opens due to increasing hydrauHc pressure from the rising product; gradually causing the unfolding of the mid-section of the body liner (10) in stages as the upper staging sleeve (14A) opens due to increasing hydrauHc pressure from further rising product; graduaUy causing the unfolding of the upper section of the body liner (10) in stages as the upper staging sleeve (14A) completely opens due to
  • FIG. 1 is a see-through view of a semi-open container from the side showing the container load-positioning tube and liner assembly attached to the hanger plate within the container.
  • FIG 2 is a plan view of a liner provided with a liner fitting being laid flat.
  • FIG. 3 illustrates the side view of the load-positioning tube assembly and its several components.
  • FIG. 4-A to 4-D illustrates the plan view, side view, top perspective view and bottom perspective view of the attaching part of the load-positioning tube assembly.
  • FIG. 5 shows the said anti-vacuum basket that is attached to the other end of the load-positioning tube.
  • FIG. 6-A to 6-D illustrates the bottom view, side view, top perspective view and bottom perspective view of the liner fitting.
  • FIG. 7 illustrates the manner and sequence in which the attaching part is inserted into the liner fitting and snap-locked in place and views from the top and bottom after the attaching part is snap-locked to the liner fitting.
  • FIG. 8-A to 8-F shows the assembly and folding steps for completing the container load-positioning tube and liner assembly.
  • FIG. 9 is a complete container load-positioning tube and liner assembly.
  • FIG. 10 illustrates a hanger plate
  • FIGS. 11-A and 11-B shows the container load-positioning tube and liner assembly (without liner) being attached to the hanger plate and an enlarged view respectively.
  • FIGS. 12-A to 12-E show see-through views of a semi-open container from the side illustrating the various stages of opening of the folded liner.
  • FIGS. 13-A, 13-B and 13-C illustrate see-through views of a tilted semi- open container from the side showing the discharge of products from the container.
  • FIG. 1 there is shown a see-through view of a semi-open container (2) from the side showing the container load-positioning tube and liner assembly (4) attached to the hanger plate (6) of the container (2).
  • the container load-positioning tube and liner assembly (4) comprises at least a load- positioning tube (8), a liner (10), at least a liner fitting (12) and at least a staging sleeve (14).
  • FIG. 2 shows a plan view of a liner (10) provided with a liner fitting (12) laid flat on the floor.
  • the liner (10) is a standard single or multi-wall flexible liner and is provided with a liner fitting (12) for the insertion and attachment of the load-positioning tube assembly (8 ).
  • the liner fitting (12) as illustrated in detail in FIG. 6A to 6-D will be further described below.
  • FIG. 3 is a view from the side of the load-positioning tube assembly (8).
  • the load-positioning tube assembly (8) is an elongated hollow tube (8A) provided with at least an attaching part (8B) on one end and at least an anti- vacuum basket (8C) on the other end.
  • FIGS. 4-A to 4-D show several views of the attaching part (8B) namely the plan view, side view, top perspective view, and bottom perspective view of the attaching part (8B).
  • the attaching part (8B) comprises a connecting member (9 A) integrally provided with at least a protrusion (9B) for alignment with the liner fitting (12E) [refer to FIG 6-C] and a stem (9C) provided with a plurality of ports (9D) for assisting in discharge of product.
  • At least a male engaging member (9E) is provided on the stem (9C) where the port (9D) is situated.
  • the male engaging member is for snap-locking with the liner fitting (12).
  • the said male engaging member (9E) is advantageously tooth-like in shape for engagement with the liner fitting female engaging member (12D) provided on the base of the receiving part (12B) of the liner fitting (12) [This will be described further in the paragraphs hereinafter appearing and illustrated in FIG.6A-6D].
  • the connecting member (9 A) is preferably hexagonal in shape to abut the receiving part (12B) of the liner fitting (12) which is of the same shape.
  • the shape of the connecting member (9 A) may take other configurations as long as they follow the shape of the interior of the liner fitting (12).
  • the said connecting member (9 A) has a central hole (9F) that is provided with internal threads (9G) to facilitate a closure (15) or the like to be provided.
  • the said ports (9D) function to facilitate the full discharge of the products when the container (2) reaches its destination.
  • FIG. 5 shows an anti-vacuum basket (8C) that is attached to the other end of the elongated tube (8A).
  • the anti-vacuum basket (8C) has holes (11) that function to allow product to flow in and prevent a vacuum forming at the bottom of the liner (10) during discharge.
  • FIG. 6- A to 6-D illustrates the bottom view, side view, top perspective view and bottom perspective view of the liner fitting (12).
  • the liner fitting (12) comprises a circular flange (12A) abutting a receiving part (12B) which functions to receive the connecting member (9 A) of the attaching part (8B) of the load- positioning tube (8).
  • the receiving part (12B) of the liner fitting has a centrally located opening (12C) (hereinafter referred to as "liner fitting opening”) which serves as a bung hole and a plurality of female engaging member (12D) circumferentially provided at its base (hereinafter referred to as "base liner fitting female engaging member).
  • the base liner fitting female engaging members (12D) that are provided on the base of the receiving part (12B) serves to allow the male engaging member (9E) located at the stem (9C) of the attaching part (8B) where the ports (9D) are situated to be snap-locked into it thereby securing the engagement of the connecting member (9 A) into the liner fitting opening (12C).
  • the said liner fitting opening or bung hole (12C) is preferably hexagonal in configuration to complement the shape of the connecting member (9 A) of the attaching part (8B) which is also, advantageously hexagonal in shape.
  • the said liner fitting opening (12C) has been described and illustrated as being hexagonal in shape, other shapes are also possible as long as the shape complements the connecting member (9 A) of the of the attaching part (8B) to allow a snug fit.
  • the number of grooves (12E) provided on the liner fitting opening (12C) corresponds to the number of protrusions (9B) on the connecting member (9 A) so as to enable the connecting member (9 A) of the attaching part (8B) and the receiving part (12B) of the liner fitting (12) to fit snugly.
  • FIG. 7 illustrates the manner and sequence in which the attaching part (8B) is inserted into the liner fitting (10) and snap-locked in place.
  • the attaching part (8B) of the load-positioning tube assembly (8) is inserted into the liner fitting opening (12C) of the receiving part (12B) with the connecting member (9A) of the attaching part (8B) being inserted first.
  • the hexagonal shaped connecting member (9 A) of the attaching part (8B) then gets lodged into the hexagonal shaped receiving part (12B) of the liner fitting (12) and the male engaging member (9E) located on the stem (9C) of the attaching part (8B) where the ports (9D) are situate is snap-locked into the base liner fitting female engaging member (12D) of the receiving part (12B) thereby causing the connecting member (9 A) of the attaching part (8B) to be secured to liner fitting opening (12C).
  • a sealing member (9F) preferably an O-ring (14) is employed to seal the connection between the connecting member (9 A) and the liner fitting (12) to enhance the engagement.
  • the advantage of having a hexagonal shape is that the said shape is able to prevent the liner (10) that has been attached to the attaching part (8B) from rotating as a closure (15) is screwed to shut the central hole (9F) of the load-positioning tube (8) or unscrewed to open it.
  • the load-positioning tube assembly (8) when inserted into the liner (10) acts as a backbone for the folded liner (10) mamtaining it in its "as packed” folded pattern and also maintaining it in an upright position when attached to the hanger plate (6) thus enabling the liner (10) to gradually unfold in stages as the product is filling up the liner (10).
  • the load-discharge tube (8 A) directs product to the bottom of the container (2) but at the same time prevents the product that is being filled into the liner (10) from directly impacting the bottom of the container due to free fall.
  • the load- discharge tube (8) prevents bouncing splashing and foaming from free flow loading which degrades oxygen sensitive products or causes hard impact on the floor of the container which can cause separation in water based emulsified products and cause problems for later production processes.
  • FIG. 8-A to 8-F shows the steps in constructing the container load positioning tube and liner assembly in pictorial form.
  • the load-positioning tube assembly (8) is inserted into the liner (10) through the liner fitting (12) in the first step (Step 1).
  • a vacuum hose (16) is attached to the load-positioning tube assembly (8) at its attaching part (8B) in the second step (Step 2).
  • the liner (10) is vacuum folded to minimize the liner bag size.
  • the top and bottom of the folded liner (10) is tightly folded alongside and parallel to the load-positioning tube (8A) to facilitate the insertion into staging sleeves (14).
  • Staging sleeves (14) are slipped over the vacuum folded liner (10) to keep the folded liner (10) in an "as packed” folded form.
  • the load-positioning tube (8A) with the bottom vacuum-folded liner (10) neatly tucked in is then inserted into the lower staging sleeve (14B) in the sixth step.
  • the completed container load-positioning tube and liner assembly (4) is illustrated in FIG. 9 and is ready for attachment to the hanger plate (6) of the container (2).
  • the staging sleeves (14) have perforations provided longitudinally to open up when required to release the folded liner (10).
  • the folded liner (10) with the staging sleeves (14) in place is then vacuum-sealed again into a shipping tube (not shown) and is ready for use.
  • the shipping tube functions to keep the components intact during transportation from the assembly place to the loading destination.
  • the shipping tube is removed and the container load- positioning rube and liner assembly (4) is then attached to the hanger plate (6) which is in turn provided on the container top.
  • the container load-positioning tube and liner assembly (4) snap locks into the hanger plate (6) and product is loaded and the liner (10) is filled.
  • FIGS. 10, 11-A and 11-B illustrate a hanger plate (6) and the said container load-positioning tube and liner assembly (4) being attached to the hanger plate (6).
  • the hanger plate (6) has a hanger plate opening (6A) provided with a plurality of hanger plate male engaging members (6B) for the liner fitting female engaging members provided on the sides of the receiving part (12B) [hereinafter referred to as "the side liner fitting female engaging members (12F)] to snap lock into the hanger plate (6).
  • the hanger plate (6) with the liner fitting (12) provided with a container load-positioning tube and liner assembly (4) so attached is then fastened to the container top by known fastening means.
  • the product can now be loaded through the central opening (9F) of the connecting member (9 A) of the attaching part (8B) comprised in the load-positioning tube assembly (8) and the liner (10) is filled with products.
  • the load-positioning tube assembly (8) is capped by a closure (15).
  • the position of the liner bottom is crucial for an optimum load and is determined by the initial loaded product estabUshing the correct foot print (16) on the floor of the container (2). Once the proper position is achieved that is the liner bottom matches the container bottom to establish a proper foot print (16) an optimum fill is certain. This desired result is accomplished by at least a staging sleeve (14) which circumferentially envelope the folded liner (10).
  • FIGS. 12-A to 12-E show see-through views of a semi-open container (2) from the side illustrating the various stages of opening of the folded liner (10).
  • the staging sleeves (14) hold the folded liner (10) in position around the load- positioning tube (8A) which controls the flow of mcoming products to facihtate the positioning of the liner bottom to the container bottom which is the beginning of a proper fill.
  • the liner bottom position is determined by the first loaded product and is critical to complete a proper loading. As the incoming product flows into the container (2) from the product loading hose (18) as illustrated in FIG.
  • the lower staging sleeve (14B) will open up at the perforated part to allow the liner (10) to unfold and expand as the hydraulic pressure from the product increases to gradually allow the product fed through the load-discharge tube (8) to flow sideways to fill up the container (2).
  • the upper staging sleeve (14A) retains the liner (10) in proper load position during the loading process when the lower staging sleeve (14B) opens.
  • the upper staging sleeve (14A) starts to gradually open up at the lower perforated part to allow the middle body section of the liner (10) to unfold and expand in stages thereby ensuring the product does not trap the side walls of the liner (10) [Refer to FIG. 12-D].
  • the gradual opening of the upper staging sleeve (14A) also controls the opening of the top section of the liner (10) as the product completely fills up ensuring the liner (10) is not in stress from product trapping at the corners or side walls (Refer to FIG. 12-E)
  • the invention as disclosed herein therefore uses the hydraulic pressure exerted by the rising product to open the folded liner (10) in stages as product flows into the container (2).
  • the pump out method changes the load-positioning tube (8A) to a discharge tube.
  • the liner (10) collapses around the load-positioning tube assembly (8) and insures a maximum discharge. Removal of the hanger plate (6) and load-positioning tube assembly (8) allow for an optimum discharge by inverting the liner (10) and load- positioning tube assembly (8) and draining out residual product.
  • the second method is to hold the drum or container in a horizontally tilted position and discharge the product a portion at a time through a valve inserted into the bung of the drum or container.
  • FIG. 13-A to 13-C there are shown see-through views of a horizontally tilted semi-open container (2) from the side showing the discharge of products from the container (2) through a valve inserted in the bung valve.
  • the load-positioning tube assembly (8) has strategically placed ports (9D) circumferentially on the ends adjacent to the attaching part (8B) that facilitates discharge of product in stages when the container (2) is discharged in a horizontal position.
  • the horizontal position allows gradual discharging of the products capable of preventing the corners of the liner (10) from being folded over itself thereby trapping the product or liquid within the liner (10).
  • the load-positioning tube assembly (8) further provides for optimum discharge and minimizes residue as the liner (10) is removed from the container (10) when empty and turned upside down and fully drained of product.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Packages (AREA)

Abstract

La présente invention porte de façon générale sur un tube de positionnement de charge de récipient et sur un chemisage (4) qui permettent un procédé de positionnement et de maintien d'un chemisage plié (10) dans une position verticale à l'intérieur du fût ou du récipient (2) avant le chargement d'un produit et pendant le chargement du produit.
PCT/SG2012/000241 2011-09-26 2012-07-06 Tube de positionnement de charge de récipient et ensemble chemisage Ceased WO2013048337A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG2011069846A SG188689A1 (en) 2011-09-26 2011-09-26 Container load-positioning tube and liner assembly
SG201106984-6 2011-09-26

Publications (1)

Publication Number Publication Date
WO2013048337A1 true WO2013048337A1 (fr) 2013-04-04

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PCT/SG2012/000241 Ceased WO2013048337A1 (fr) 2011-09-26 2012-07-06 Tube de positionnement de charge de récipient et ensemble chemisage

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WO (1) WO2013048337A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111971A (en) * 1989-05-26 1992-05-12 Robert Winer Self-pressurized container having a convoluted liner and an elastomeric sleeve
US5163485A (en) * 1990-01-11 1992-11-17 Sotralentz S.A. Container assembly for flowable materials
US5255492A (en) * 1991-07-19 1993-10-26 Safety-Kleen Corporation Detachable cover and drum liner for storage and transport of controlled materials
JP2003002362A (ja) * 2001-06-19 2003-01-08 Sekisui Seikei Ltd 内容袋の注入、排出用管

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111971A (en) * 1989-05-26 1992-05-12 Robert Winer Self-pressurized container having a convoluted liner and an elastomeric sleeve
US5111971B1 (fr) * 1989-05-26 1993-07-06 Winer Robert
US5163485A (en) * 1990-01-11 1992-11-17 Sotralentz S.A. Container assembly for flowable materials
US5255492A (en) * 1991-07-19 1993-10-26 Safety-Kleen Corporation Detachable cover and drum liner for storage and transport of controlled materials
JP2003002362A (ja) * 2001-06-19 2003-01-08 Sekisui Seikei Ltd 内容袋の注入、排出用管

Also Published As

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