WO2001064536A1 - Sachet interieur d'une caisse-outre - Google Patents

Sachet interieur d'une caisse-outre Download PDF

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Publication number
WO2001064536A1
WO2001064536A1 PCT/JP2001/001579 JP0101579W WO0164536A1 WO 2001064536 A1 WO2001064536 A1 WO 2001064536A1 JP 0101579 W JP0101579 W JP 0101579W WO 0164536 A1 WO0164536 A1 WO 0164536A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
inner bag
film
box
fusion
Prior art date
Application number
PCT/JP2001/001579
Other languages
English (en)
Japanese (ja)
Inventor
Michinori Yoneyama
Makoto Ichikawa
Original Assignee
Fujimori Kogyo Co., 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
Priority claimed from JP2000056403A external-priority patent/JP4564621B2/ja
Priority claimed from JP2000063866A external-priority patent/JP2001253474A/ja
Application filed by Fujimori Kogyo Co., Ltd. filed Critical Fujimori Kogyo Co., Ltd.
Priority to US10/220,057 priority Critical patent/US20030024950A1/en
Priority to DE60129948T priority patent/DE60129948D1/de
Priority to EP01908208A priority patent/EP1277666B1/fr
Priority to AU2001236030A priority patent/AU2001236030A1/en
Publication of WO2001064536A1 publication Critical patent/WO2001064536A1/fr

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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • 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
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank
    • 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
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank
    • B65D77/065—Spouts, pouring necks or discharging tubes fixed to or integral with the flexible container

Definitions

  • the present invention relates to an improvement in the handleability of a metal box made up of an inner bag made of a synthetic resin film and an outer box made of cardboard or the like.
  • a metal box made up of an inner bag made of a synthetic resin film and an outer box made of cardboard or the like.
  • it relates to an improved bag-in-box inner bag having a gusset portion.
  • a synthetic resin film for filling, storing and transporting liquids such as liquids and powders has been heat-sealed into a bag-shaped inner bag and an outer box made of cardboard, etc.
  • Such containers are generally called bag-in-boxes, and containers having a capacity of about 51 to 201 are widely used as food and medicine containers.
  • These containers are mainly used for business purposes, and are used as raw material containers for foods and chemicals and as large containers for subdivision.
  • the inner bag of the Nuggin Box is a highly self-sustaining molding type that is made by blow molding or vacuum molding synthetic resin.
  • film types are divided into flat bags and gazette bags according to their shape.
  • gusset-shaped inner bags are not as good as molded types, they are more self-contained as containers than flat bag types, so they can be handled without an outer box. I like it.
  • the gazette-type bag-in-box has several problems, one of which is the strength problem. '
  • Japanese Unexamined Patent Publication (Kokai) No. 64-19174 discloses a gusseted shape in which both side edges of the bag body are folded inward to form a gusset portion. It is shown.
  • the gusset-shaped bag As shown in this publication, the gusset-shaped bag, as shown in Japanese Patent Application Laid-Open No. 6-9-1174, has a fold at the fold of the film on the side when filled with liquid. Has a drawback that stress concentration occurs at the intersection of the upper and lower sides and the welded portion, and is weak against stresses such as internal pressure.
  • the oblique band-like fusion is carried out from the intersection of the fold of the fold and the fusion part on the upper side or the lower side to an appropriate position on both sides of the bag. It is said that the provision of the section increases the strength of the intersection.
  • the provision of this oblique band-like fusion portion is effective in preventing the liquid from remaining between the films at the corners of the inner bag when discharging the liquid, and in reducing the residual liquid.
  • simply providing this oblique band-like fusion joint may cause damage due to insufficient strength when a severe impact such as dropping is applied to the inner bag.
  • this triangular portion may hinder the filling of the filled inner bag into the outer box.
  • the triangular portion becomes hard and rebounds, and as a result, the independence is deteriorated when handling the filled 'inner bag without the exterior as described above.
  • Japanese Utility Model Application Laid-Open No. 64-91174 discloses that a triangular portion at the lower part of the inner bag is cut off in order to enhance independence. There was a problem in that dropping made it easier for the intersection to open, and the strength against internal pressure was rather weakened.
  • One of the problems is that in order to improve the strength of the inner bag, the film on the side to be folded is made of a biaxially stretched film, a nylon resin layer, or other resin layer that is difficult to be heat-sealed. This is often seen when using a laminate that is laminated so as to be a surface layer, and is an obstacle to improving the strength of the gusset-shaped bag-in-box inner bag.
  • the inner bag of the bag box which has a handle as shown in Fig. 21, is actually open. It is shown in the publication No. 766. That is, at the same time as forming the upper fused portion of the gusset-shaped inner bag, a fused portion is formed such that the front film and the rear film are integrated at the corner of the inner bag. The part is grasped.
  • the present invention has a problem in that the entire upper side is fused in a straight line, so that there is no gap for the finger to come off, so that a burden is imposed on the fingertip.
  • the gusset-shaped inner bag for bag-in-box is inserted into the gusset part with the side films folded inward from both side edges between the front film and the rear film.
  • the upper or lower fusion zone consists of two types of fusion zones. One is the part near the center where the front film and the rear film face each other, where the front film and the rear film are directly fused together (this fusion part The other is located on the outer side, and the front film and the side film or the rear film and the side film are fused.
  • the film constituting the gusset-shaped inner bag is often made of a fusible film on the front and back surfaces, and the side films are also fused together at the folded part on the upper or lower side.
  • the side film is used. Lums are not fused together.
  • a first object of the present invention is to improve the strength without impairing the independence of the inner bag when the inner bag of the bag bag box filled is used without the outer box.
  • a second object of the present invention is to provide an inner bag for a back-in box, which is provided with an appropriate gripping portion and has improved handleability and convenience of the inner bag.
  • the first invention is a gusset-shaped bag-in-box inner bag made of a laminate in which a resin layer on which the film to be folded is hardly heat-sealed is formed as a surface layer. It is a preferred invention to apply, the gist of which is to cut out the side film continuously or close to the top and / or bottom fusion splice, and the front and rear films
  • a nose-box inner bag characterized in that a reinforcing fusion-bonded portion is provided by fusion-bonding the above film. At that time, in the bag-in-box inner bag, even at the corner or near the corner, the side film is cut off and the front film and the rear film can be fused. I like it.
  • a storage part for contents is divided by a fusion part to form a triangular fin part. At least one of the triangular fins may be cut and removed, and when cutting, it is particularly preferable to cut and remove all lower triangular fins.
  • New The inner bag for bag-in box provided with a reinforced fusion spliced part where the front film and the rear film are fused together has the following advantages due to the above structure. Occurs. That is,
  • the front and rear films are fused by cutting out the side films so as to be continuous or adjacent to the top or bottom fused portion of the gusset-shaped bag-in-box inner bag. This prevents the side film near the top fused part on the upper or lower side from opening when internal pressure is applied to the inner bag due to an impact such as inadvertent dropping, etc. Load can be reduced. '
  • the front film and the rear film are fused at the corners or near the corners by cutting off the side films, so that the reinforcing effect described in (1) can be obtained.
  • the size of the film becomes larger, it is possible to prevent the film on the side surface from being damaged by contact with the inner surface of the outer box.
  • the fused portion at the corner can be used as a gripping portion, it is suitable when the filled inner bag is taken in and out of the outer box, transported, and the contents are discharged.
  • the second invention is preferably applied to a gusset-shaped inner bag for a bag box formed by fusing one or a plurality of films, and the gist of the invention is as follows. At least at one corner or near the corner, the front and rear films are formed so that an unfused part between the side films is formed between the top film and the fused part.
  • the gripping portions are preferably provided on both sides of the top fusion portion on the upper side and / or the lower side for further improvement in handleability and convenience.
  • a band-like fusion portion is provided at an arbitrary position on the side edge from the end of the top fusion portion on the upper side and / or the lower side, and a fin portion divided into a triangular shape is provided, and a grip portion is provided. It is preferable that the triangular fin is provided on the triangular fin, and the triangular fin on the lower side may be removed. Increase.
  • the front and rear flaps are formed such that an unfused portion is formed at least at one corner or near the corner between the top fused portion.
  • Film fused, so the front or rear film is closer than the side of the inner bag
  • the finger is pulled out from the unfused part between the front film and the rear film, so that the fingertip is strained. It can be gripped without any problem.
  • the front film is used at the corners. And the rear film can be fused through the side film. Therefore, in order to form the unfused portion of the side films, it is only necessary to seal the seal bar used for the upper or lower side with a notch for forming the unfused portion. Is fine.
  • a resin layer such as a polyimide resin layer or a biaxially stretched film, which is difficult to heat-bond, is used as the side film, the front film is formed at the corner.
  • Part of the side film is cut into a circular or oval shape to fuse the rear film and the rear film.
  • (Punch hole) The rear surface of the front film and the rear surface of the rear film are Fused without passing through the film. It is preferable that a plurality of punch holes are provided to improve the strength, and the unfused portion may be formed by widening the interval between the punch holes so that a finger can enter.
  • the present invention provides a front and rear film so as to form an unfused portion between at least one corner or a corner and a top fused portion.
  • the handleability of the inner bag can be improved by fusing the If it exceeds 101, the film with high strength is adopted, and the waist becomes strong.Therefore, when the filled inner bag is lifted up by the grip, the film in the unfused part May be urged inward, causing the finger to be pinched and the film to bite into the finger.
  • an unfused portion is provided on the upper side or the lower side, and a cutout portion is provided in a part of the unfused portion.
  • the finger can be pulled out through the part so that the grip part provided on the upper or lower part can be gripped. This makes it very easy to remove the inner bag from the outer box, carry it around, or discharge its contents. Similarly, the inner bag filled with the contents can be easily placed in the outer box.
  • this notch may be hereinafter referred to as a handle hole.
  • the unfused portion may or may not be left around the handle hole. If an unfused portion is not left, a hole may be formed by fusing the entire side and then forming a handle hole.
  • a band-like fusion portion is provided at an arbitrary position on the side edge from the end of the top fusion portion on the upper side and / or the lower side. It is also possible to provide a fin section which is provided in a triangular shape. In this case, part or all of the fin may be fused.
  • the gripping part is provided on the triangular fin so that the contents do not remain in the corners when discharging the contents, and when the filled bag-in box is transported. It is preferred because it serves to protect the film.
  • the inner bag is The self-standing stability is improved when taking out and handling, and it can be easily stored in the outer box when stored in the outer box.
  • the inner bag of the gusset-shaped bag-in-box of the present invention is formed by inserting the side film folded inside between the front film and the rear film as described above. It is a gusset-shaped bag that is fused around and has folds on the sides. Instead of using the front film, rear film, and side film, a tubular film is used. Using lumps, both sides may be folded inward, and the upper and lower ends may be fused by omitting the side fusion parts. '' Brief description of the drawings
  • FIG. 1 is a plan view showing an embodiment of a bag of a bug box according to the first invention in a folded state.
  • FIG. 2 is a plan view showing another embodiment of the bag-in-box inner bag of the first invention in a folded state.
  • Fig. 3 is a bottom view of the bag in the bag box of Fig. 2 filled with the liquid of the contents, viewed from below.
  • FIG. 4 is a plan view showing another embodiment of the inner bag for a bag-in-box according to the first invention.
  • Fig. 5 is a view of the bag-in-box inner bag of Fig. 4 filled with liquid as viewed from below the bag.
  • FIG. 6 is a plan view showing another embodiment of the inner bag for a bag-in-box according to the first invention.
  • Fig. 7 shows an example of a conventional gusseted bag-shaped inner bag with oblique fusion.
  • Fig. 8 shows an example of the bag bag box inner bag in which the outside of the conventional gusset bag shape oblique fusion is removed.
  • Fig. 9 shows a state in which the inner bag for bag-in box of Fig. 7 is filled with liquid as viewed from below the bag.
  • FIG. 10 is a view of the bag-in-box inner bag of FIG. 8 filled with liquid as viewed from below the bag.
  • FIG. 11 shows one embodiment of the bag-in-box inner bag of the second invention, and is a plan view in a folded state. '
  • FIG. 12 is a plan view showing another embodiment of the bag of the present invention in a folded state.
  • FIG. 13 is a plan view of a bag-in-box inner bag according to another embodiment of the second invention in a state where the bag-in-box inner bag provided with a cutout portion is folded.
  • FIG. 14 shows another embodiment of the inner bag for a bag-in-box according to the second invention, in which the inner bag obtained by cutting off the triangular fin portion at the lower part of FIG. 14 is in a folded state. It is a top view.
  • FIG. 15 is a perspective view of the bag-in-box inner bag of FIG. 14 when the liquid is filled therein.
  • FIG. 16 is a plan view of another embodiment of the inner bag for a pug box according to the second invention, in which the inner bag having punched holes at the corners of the inner bag is folded. .
  • FIG. 17 is a plan view of another embodiment of the inner bag for a bag-in-box according to the second invention in a state where the inner bag is omitted in a state where a side fusion portion is omitted.
  • FIG. 18 is a plan view of another embodiment of the bag-in-box inner bag according to the second invention, in which the side fusion portion is omitted, in which the inner bag is folded to form a Si.
  • FIG. 19 is a partial plan view of another embodiment of the inner bag for a bag-in-box according to the second invention, in which a punch hole is provided near a corner portion and a top fusion portion of the inner bag. .
  • FIG. 20 shows another embodiment of the inner bag for a bag-in-box according to the second invention, in which a punch hole is provided near the corner and the top fusion portion of the inner bag and a notch is provided. It is a partial plan view of a bag. '
  • Fig. 21 shows the inner bag of a Knoggin box with a conventional handle.
  • a laminate such as a laminate film or a co-extruded film is used according to the required performance.
  • laminates include films with relatively high mechanical strength, such as biaxially stretched polyamide, biaxially stretched polyester, and biaxially stretched polypropylene, and resin layers of polyimide.
  • a laminate comprising a resin layer that is not easily heat-fused as a surface layer and an innermost layer composed of a polyolefin-based resin layer having a polyolefin-based thermal adhesive property such as polyethylene or polypropylene. It is.
  • a silica vapor-deposited film or ethylene vinyl alcohol copolymer is used to shield light.
  • laminate or co-extrude aluminum foil or aluminum-deposited film is appropriately selected depending on its use.
  • the multilayer film include, for example, a laminate film of polyester, aluminum foil and polyethylene, a co-extruded multilayer film of EVOH and polyethylene, and a polyamide.
  • co-extruded multilayer films of EVOH and polyethylene are used singly, or a double or more film obtained by laminating these films and a single film of polystyrene without bonding them is used as appropriate.
  • the top fused part on the upper side and / or the lower side is a part where the front film and the rear film are directly fused on the upper side and / or the lower side.
  • a notch is provided in the side film continuously or in close proximity to the front film, and the front film and the rear film are fused to form a reinforcing fused portion.
  • the notch may have any shape such as a circle or an ellipse, and a plurality of notches may be provided to improve strength. In this case, it is preferable that the notch be provided at or near the corner of the inner bag.
  • FIG. 1 shows the bag-in-box inner bag of the present invention in a folded state.
  • 1 is an inner bag
  • 2 is a top side fusion splice
  • 3 is a lower side fusion splice
  • 4 45 and 5 are folded side films
  • 5 and 5 ' Reference numeral denotes a fusion splicing portion existing near the top side fusion splicing portion
  • 6 denotes a front film of the inner bag
  • 7 denotes a fusion splicing portion that separates the storage portion and the fin portion.
  • the front and rear films at the positions of these holes are fused by opening the through holes in the folded side films 4 and 4 'in advance and then welding the lower side. To form a reinforcing fused portion.
  • 8 and 10 are the intersections of the lower side fusion zone and the side film
  • 9 and 11 are the intersections of the upper fusion zone and the side film
  • 12.2.12 ' is The fold of the side film
  • 13 is a side edge fusion part
  • 14 is a rear film
  • 15 is a spout.
  • FIG. 2 shows a case where the side film near the corner is cut out and a corner fusion part 16 is provided in the bag bag of the bag box of FIG. Fig. 3 shows a state in which the liquid of the contents is filled in the bag of the bag box of Fig. 2 as viewed from the lower side of the bag.
  • the front and rear films of the bag are integrated by the fusible parts at the corners in addition to the reinforced fused parts 5 and 5 ', so even if an impact is applied, the top fused part The nearby side film does not spread and the strength is increased.
  • FIG. 4 shows a shape in which the outside of the fusion part 7 that separates the storage part and the fin part in FIG. 2 is cut off.
  • Fig. 5 shows the bag inside the bag box of Fig. 4 filled with the liquid of the contents as viewed from below the bag.
  • the front and back films of the bag are reinforced by the reinforced fusion parts 5, 5 '. Because it is integrated, the side film near the top fusion zone does not spread even when an impact is applied, increasing the strength.In addition, the fin has been removed The inner bag becomes stable and independent.
  • FIG. 6 shows another embodiment of the present invention. In this case, all the fins were cut off.
  • FIG. 7 and 8 are plan views of a conventional gusset-shaped inner bag.
  • Fig. 9 shows the inner bag shown in Fig. 7 filled with contents
  • Fig. 10 shows the inner bag shown in Fig. 8 filled with contents. It is the figure seen from the lower part.
  • the side film near the top fusion part is easy to open, and the strength against internal pressure is weak.
  • FIG. 11 is a plan view showing a state where the inner bag for bag-in-box according to the second invention is folded.
  • 17 is an unfused portion
  • 2 is a top fused portion on the upper side
  • 3 is a top fused portion on the lower side
  • 13 is a side fused portion
  • 12 and 12 ′ are side flaps.
  • Folding line of film 15 is spout
  • 4 is side film
  • 6 is front film.
  • FIG. 12 is a plan view showing a state in which the inner bag for bag box of another embodiment of the present invention is folded.
  • Reference numeral 7 denotes an oblique welding portion.
  • a notch (handle hole) 18 is provided to reduce the number of holes.
  • a fusion part 7 is provided diagonally from the end of the top fusion part to the side edge fusion part of each part. It is.
  • FIG. 13 is a plan view of another embodiment of the present invention, in which the oblique welding portion 7 is provided also in the lower part.
  • the oblique welding portion 7 is provided also in the lower part.
  • Fig. 14 is a plan view of the inner bag of the 'Bug-in box' with the triangular fin formed by providing an oblique fusion part at the lower fusion part.
  • FIG. 15 is a perspective view of the bag-in-box inner bag of FIG. 14 when the contents are filled.
  • the film on both sides on the upper fusion side spreads back and forth, so that a finger can be inserted into the handle hole from underneath and the filled inner bag can be easily lifted. If the handle hole is not opened, it is not easy to grasp and lift a large-capacity inner bag such as 201 with a burden on the fingertip.
  • FIG. 16 is a plan view of a bag box inner bag using a laminate in which a resin layer that is difficult to heat-seal is laminated on the surface as a side film, and FIG. Punch holes are provided at the corners of the film.
  • the front and rear films are integrated at the corners without passing through the side films at the corners, and the reinforcing fusion joints 16
  • a notch 18 is provided between the top fusion part and the corner fusion part to provide a handle function.
  • FIG. 17 and FIG. 18 are plan views showing another embodiment of the present invention. These are all cases where the side fusion of the bag body is omitted.Such a bag is formed, for example, on both sides of a tubular film formed of an inflation tube or a back sticker. Is folded inward to form an inner fold, and the upper and lower parts are fused.
  • Fig. 17 shows that a handle hole is formed in the triangle-shaped fin on the upper part of the bag where such side fusion is omitted, and a handle hole is formed in the lower triangle-shaped fin. It is a case where it is provided.
  • Fig. 18 shows a bag without such side fusion, in which a reinforcing hole 16 is provided by punch holes near the upper corner and a handle hole is provided in the upper triangular fin. And the lower triangular fin is cut off.
  • FIGS. 19 and 20 are partial views showing another embodiment of the present invention.
  • Fig. 19 shows the case where a reinforcing welded part 16 was provided by punch holes near the corner and the end of the top welded part.
  • Fig. 20 shows the case where two punches shown in Fig. 19 were used. This is a case where a notch 18 is provided between the provided reinforcing fusion parts 16.
  • Article 19 Corrected Form (Rule 91)
  • the fingers can be put out from this part and can be gripped, but by providing the notch 18 between them as shown in Fig. 20 It can be more easily gripped. Examples and comparative examples
  • the inner bag is made of a straight polyethylene film with an inner layer of 60 / m and a nylon 15 / m / linear polyethylene film with an outer layer of 60 jm. It is a double bag of laminated film. The capacity of the inner bag was all unified at 201.
  • the test method for container self-sustainability is as follows.Inside the inner bag filled with water 201 in a container, leave it standing without an outer box, tilt the floor in the front, rear, left and right directions of the inner bag, The inclination angle of the floor where the bag fell was measured five times. 'The results are shown in Table 1.
  • the test method for the drop strength of the container was to drop the inner bag filled with water 201 into a container 201 and dropped it on the floor surface, and measured the height and location of the occurrence of the bag break five times. .
  • the results are shown in Table 2.
  • the film on the side surface is continuous or close to the top fused portion on the upper side and / or the lower side. Notch to provide a reinforcing fusion-bonded part that fuses the front film and the rear film, so as not to impair the independence of the container.
  • Upper side or lower side when inner pressure is applied to inner bag It is possible to prevent the side film near the top fused portion from being opened, to reduce the load on the top fused portion, and to improve the practical strength.
  • the film on the side surface is cut off at the corner or in the vicinity of the corner, and the film on the side surface is welded to each other because the fin portions are fused to each other. Prevents damage due to contact with the inner surface. Since the fused portion at the corner can be used as a gripping portion, it is suitable when the filled inner bag is taken in and out of the outer box, transported, and the contents are discharged. '
  • the upper fin is not directly related to the bag's independence, but it is cut off like the lower fin to lower the center of gravity and increase the independence. It can also be used as a handle when handling bags, or left uncut. Further, the fin portion may be provided with a fused portion partially or entirely.
  • the unfused portion or the notched portion is provided on the upper side and / or the lower side, so that the fused portion at the corner is configured as a handle, and as a result, the filled inner bag is formed.
  • the work is very easy, and it has excellent effects such as handleability and convenience.

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  • Mechanical Engineering (AREA)
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  • Bag Frames (AREA)

Abstract

L'invention concerne un sachet intérieur de caisse-outre susceptible de faciliter davantage la manutention et l'aspect pratique lorsque ledit sachet (1), rempli, est manipulé sans caisse extérieure. Des éléments thermofixés de renfort (5, 5'), formés par découpage de feuilles latérales (4, 4') et thermofixage d'une feuille avant (6) avec une feuille arrière sont fournis en continu ou à proximité d'éléments thermofixés d'extrémité (2, 3) sur le côté supérieur et/ou inférieur du sachet intérieur, ou un élément de retenue, formé par thermofixage de la feuille avant (6) avec la feuille arrière à travers ou non des feuilles latérales (4, 4'), est fourni, de sorte qu'un élément non thermofixé (17) entre les feuilles latérales (4, 4') est constitué au niveau ou à proximité d'au moins un coin entre les feuilles et les éléments thermofixés d'extrémité (2, 3) et que, lorsqu'une main accède par la partie latérale dudit sachet (1), les doigts sortent de ce sachet (1) en traversant l'élément non thermofixé.
PCT/JP2001/001579 2000-03-01 2001-03-01 Sachet interieur d'une caisse-outre WO2001064536A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/220,057 US20030024950A1 (en) 2000-03-01 2001-03-01 Inner bag for bag-in-box
DE60129948T DE60129948D1 (de) 2000-03-01 2001-03-01 Innenbeutel für bag-in-box
EP01908208A EP1277666B1 (fr) 2000-03-01 2001-03-01 Sachet interieur d'une caisse-outre
AU2001236030A AU2001236030A1 (en) 2000-03-01 2001-03-01 Inner bag for bag-in-box

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2000/56403 2000-03-01
JP2000056403A JP4564621B2 (ja) 2000-03-01 2000-03-01 バッグインボックス用内袋
JP2000/63866 2000-03-08
JP2000063866A JP2001253474A (ja) 2000-03-08 2000-03-08 バッグインボックス内袋

Publications (1)

Publication Number Publication Date
WO2001064536A1 true WO2001064536A1 (fr) 2001-09-07

Family

ID=26586559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/001579 WO2001064536A1 (fr) 2000-03-01 2001-03-01 Sachet interieur d'une caisse-outre

Country Status (6)

Country Link
US (1) US20030024950A1 (fr)
EP (1) EP1277666B1 (fr)
AT (1) ATE370077T1 (fr)
AU (1) AU2001236030A1 (fr)
DE (1) DE60129948D1 (fr)
WO (1) WO2001064536A1 (fr)

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Also Published As

Publication number Publication date
ATE370077T1 (de) 2007-09-15
EP1277666A1 (fr) 2003-01-22
US20030024950A1 (en) 2003-02-06
AU2001236030A1 (en) 2001-09-12
DE60129948D1 (de) 2007-09-27
EP1277666A4 (fr) 2006-01-04
EP1277666B1 (fr) 2007-08-15

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