WO2012044452A1 - Sac renforcé - Google Patents

Sac renforcé Download PDF

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Publication number
WO2012044452A1
WO2012044452A1 PCT/US2011/051164 US2011051164W WO2012044452A1 WO 2012044452 A1 WO2012044452 A1 WO 2012044452A1 US 2011051164 W US2011051164 W US 2011051164W WO 2012044452 A1 WO2012044452 A1 WO 2012044452A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
essentially planar
planar reinforcing
reinforcing material
essentially
Prior art date
Application number
PCT/US2011/051164
Other languages
English (en)
Inventor
Vir Narula
Michael Hieger
Original Assignee
Vir Narula
Michael Hieger
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 US12/882,244 external-priority patent/US20110002561A1/en
Priority claimed from PCT/US2011/034386 external-priority patent/WO2012012004A2/fr
Application filed by Vir Narula, Michael Hieger filed Critical Vir Narula
Publication of WO2012044452A1 publication Critical patent/WO2012044452A1/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
    • B65D31/10—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

Definitions

  • Single or multi-wall bags holding particulates or powder have certain advantages over corrugated boxes. However, such bags do not have the structural compression strength required to bear weight.
  • the solution to this problem is to create a package that has most of the advantages of a bag but with the strength of a corrugate.
  • the objective is to have the advantages of economical manufacture, transportation, and filling the final product in the package.
  • the reinforced bags of the Present Invention are designed to achieve all these advantages.
  • Normally empty bags are manufactured by bag manufacturers, stacked in collapsed form in bundles on pallets, and shipped to the product manufacturer. The empty bags are stacked in the filling machine magazine, and product fills the bag. The bag is then sealed.
  • FIG. 1 illustrates a flat bottom, single or multi-wall bag reinforced by a U- shaped corrugated liner.
  • FIG. 1A is a front elevation of the bag.
  • FIG. 1 B is a top plan view of the bag.
  • FIG. 1 C is a side elevation of the bag.
  • FIG. 2 shows an isometric schematic of the U-shaped liner and its relation to the bag.
  • FIG. 3 illustrates a single or multi-wall gusseted bag reinforced by slightly bent corrugated strips inserted only along the sides of the bag.
  • FIG. 3A is an isometric exploded view showing how the bent inserts are inserted into the bag.
  • FIG. 3B is a front elevation of the filled bag.
  • FIG. 3C is a top plan view of the filled bag.
  • FIG. 3D is a side elevation of the filled bag.
  • FIG. 3E is a top plan view of the unfilled or partially filled bag.
  • FIG. 3F is a side elevation of the unfilled or partially filled bag.
  • FIG. 3G is an isometric break out view of the inside of the reinforced bag.
  • FIG. 4 illustrates a single or multi-wall gusseted bag without a tear strip reinforced by slightly bent corrugated inserts along the sides as well as a bottom liner.
  • FIG. 4A is an isometric exploded view showing different types of bent inserts that can be used for reinforcement.
  • FIG. 4B is an isometric view of corrugated inserts having straight ends.
  • FIG. 4C is an isometric view of corrugated inserts having ends cut for a better fit in the bag.
  • FIG. 4E is a front elevation of the bag.
  • FIG. 4F is a top plan view of the filled bag.
  • FIG. 4G is a side elevation of the filled bag.
  • FIG. 4H is a top plan view of the unfilled or partially filled bag.
  • FIG. 4J is a side elevation of the unfilled or partially filled bag.
  • FIG. 4K is an isometric break out view of the inside of the reinforced bag.
  • FIG. 5 is an isometric schematic showing two corrugated elements both positioned outside the bag for reinforcement.
  • FIG. 6 is an isometric schematic showing two corrugated elements, one positioned inside the bag and the other positioned outside the bag.
  • FIG. 7 is an isometric schematic showing two corrugated elements, one positioned inside the bag and the other positioned outside the bag.
  • FIG. 8 is an isometric schematic of an embodiment wherein the bag is reinforced vertically, showing two corrugated elements positioned on either side of the bag.
  • FIG. 9 is an isometric schematic of the embodiment wherein the bag is reinforced vertically, showing two corrugated elements positioned on either side of the bag and one corrugated element positioned on the bottom of the bag.
  • the Present Invention discloses a method of reinforcing a multi-wall bag, such as one used to hold particles or powder using corrugated or fluted cardboard inserts as well as the reinforced bag itself.
  • the inserts are preferably constructed from flat cardboard, but may be constructed from plastic or any other suitable material.
  • the inserts may remain flat, or they may be scored perpendicular to the flute direction in such a way as to bend when pressure is applied along the flute direction. The scoring does not penetrate through the entire depth of the cardboard.
  • the inserts may be inserted either along the sides of the bag or along both the sides and bottom of the bag.
  • the reinforced bags of the Present Invention are manufactured and shipped in collapsed form, and when filled, have a built in structural support inside the bags to protect the product and to support the weight of additional bags stacked (palletized) on top of them.
  • the method of the Present Invention involves attaching scored corrugated sheets (or other suitable materials) to the walls of the empty bag.
  • the corrugated sheets are glued or otherwise secured to the inside surfaces of the empty bag.
  • the score line on the corrugated sheet and the fold line of the empty bag coincides, thereby allowing bags to fold in collapsed fashion when empty.
  • the corrugated sheet also folds along the bag fold because there is a score/cut in the corrugated sheet.
  • the fluted portion of one side of the scored corrugate is aligned with the fluted portion of the other side of the scored corrugated sheet, to form a continuous fluted corrugated sheet providing sufficient structural strength to bear the load.
  • a corrugated sheet has three layers, viz., a fluted sheet sandwiched between two linerboards.
  • a scored corrugated sheet has one linerboard and the fluted sheet with score/sharp cut perpendicular to the flute direction, but with the last linerboard intact.
  • Similar results can be achieved by having two separate corrugated sheets attached to the bag walls on both sides of the fold line. The corrugated sheets are attached in such a way that there is no space between the two corrugated sheets when flat.
  • the two sidewalls with the scored corrugate will have vertical flutes aligned, and these corrugated sheets will bear the load.
  • the package can be stacked on a pallet, and the weight of the product will be carried by the corrugate walls rather than the product.
  • the concept can be extended to three sides of the bag - two sides and one bottom. It can be used on all four sides with glue end bags.
  • Such bags will be economical compared to providing extra support to protect the product in each package; the bags can be used to provide stand up capabilities on the shelf because two or three sides has support/ structure in it.
  • FIG. 1 shows a bag 1 reinforced by a U-shaped folded single corrugated sheet 2.
  • the folds can be produced by scoring the sheet in two places in the manner described supra.
  • Figures 1A, 1 C, and 1 B are front and side elevations and a top plan view of the reinforced bag, respectively.
  • the folded U-shaped corrugate is inserted into the bag as shown in FIG. 2.
  • FIG. 3A shows how a gusseted bag 3 with a tear strip and fold lines 4 along its sides may be reinforced with corrugate inserts positioned along the sides of the bag.
  • Two flat corrugated sheets 5 are scored 6 perpendicular to the flute direction.
  • FIG. 3G is a partial breakout isometric view showing a portion of the inside of the bag. The viewer is looking at the bottom seam 5 of the bag. The partially folded corrugate 4 rests against the side of the bag.
  • FIG. 4A is an isometric showing how a bottom corrugated sheet 41 may be inserted between the two side corrugated sheets, 42 and 43.
  • Embodiment A has flat cut ends. They fit together as shown in FIG. 4B. Clearly, there must be a gap between the side corrugates and the bottom corrugates or they will not fold properly.
  • the other two embodiments have V-shaped cut ends.
  • Embodiment B shows one type of end cut where the apex of the 'V faces inward
  • Embodiment C shows a different type of end cut, where the apex of the 'V faces outward.
  • FIG. 4C shows how the pieces of Embodiment B fit together.
  • FIG. 4K shows yet another embodiment.
  • the drawing shows a partial isometric view of the inside of the bag. The viewer is looking toward the bottom of the bag. Corrugate 41 lies along the bottom, while corrugate 42 lies along the side. However, the end cut of corrugate 42 has the apex of the 'V facing outward, while the end cut of corrugate 41 has the apex of the 'V cut facing inward. This can be reversed.
  • This embodiment provides the greatest structural stability where the apexes of the 'V cuts of the side members 42 face opposite to the apexes of the 'V cuts of the bottom member. This provides the closest packing of the reinforcement packing at the bottom corners of the bag.
  • FIG. 5 shows an embodiment of the bag where both corrugates attach to the outside of the bag for reinforcement.
  • Corrugate 52A is scored, folded, and placed on the outside left side of the bag as corrugate 52B, while corrugate 53A is scored and folded and placed on the outside right side of the bag.
  • FIG. 6 shows a hybrid reinforcement scheme where corrugate 52B is placed on the outside left side of the bag (in the same way as shown in FIG. 5), but corrugate 54A is scored and folded as corrugate 54B and placed on the inside surface of the bag.
  • FIG. 6 further shows that the bag may have a plastic or paper inside lining 8.
  • Figures 6 and 7 illustrate that reinforcement is accomplished by placing the reinforcing elements on the inside or the outside of the bag in any combination.
  • FIG. 8 shows two vertical reinforcing elements 55 and 56 on both sides of the bag, either on the inside or the outside of the bag in any combination.
  • Elements 55A and 56A are the unfolded elements, while elements 55B and 56B are the folded elements.
  • FIG. 9 shows the addition of a horizontally positioned reinforcing element (57A unfolded - 57B folded) positioned on the bottom 9 of the bag, either on the inside or the outside of the bag.
  • the corrugated reinforcing elements are scored in a direction parallel to the flute direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

La présente invention concerne un procédé de renforcement d'un sac à parois multiples, tel que celui utilisé pour retenir des particules ou de la poudre au moyen de supports en carton ondulé ou cannelé ainsi que du sac renforcé lui-même. Les sacs renforcés peuvent être empilés horizontalement ou verticalement. Les supports sont composés de préférence de carton plat, mais peuvent être composés de plastique ou de n'importe quel autre matériau approprié. Les supports peuvent rester plats, ou peuvent être rainés perpendiculairement à la direction de la cannelure de manière à fléchir lorsqu'une pression est appliquée le long de la direction de la cannelure. Le rainage ne pénètre pas à travers toute la profondeur du carton. Les supports peuvent être insérés dans le sac soit le long des côtés du sac soit le long des côtés et du fond du sac. Ils peuvent également être fixés au côté extérieur du sac le long des côtés et du fond de la même manière. Un sac hybride est possible, certains des supports apparaissant à l'intérieur du sac, et d'autres apparaissant à l'extérieur du sac.
PCT/US2011/051164 2010-09-15 2011-09-12 Sac renforcé WO2012044452A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12/882,244 US20110002561A1 (en) 2010-06-24 2010-09-15 Reinforced bag
US12/882,244 2010-09-15
USPCT/US11/34386 2011-04-28
PCT/US2011/034386 WO2012012004A2 (fr) 2010-06-24 2011-04-28 Sac renforcé

Publications (1)

Publication Number Publication Date
WO2012044452A1 true WO2012044452A1 (fr) 2012-04-05

Family

ID=45893499

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/051164 WO2012044452A1 (fr) 2010-09-15 2011-09-12 Sac renforcé

Country Status (1)

Country Link
WO (1) WO2012044452A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014064307A1 (fr) * 2012-10-22 2014-05-01 Cristobal Meseguer, S.A. Bande continue pour la fabrication de sacs de type panier en papier plastifié pour produits hortofruticoles et similaires
WO2014064308A1 (fr) * 2012-10-22 2014-05-01 Cristobal Meseguer, S.A. Bande continue en papier plastifié pour la fabrication de sacs pour produits hortofruticoles et similaires
WO2014091039A1 (fr) * 2012-12-14 2014-06-19 Cristobal Meseguer, S.A. Bande continue pour la fabrication de sacs en papier plastifié avec plaque pour produits hortofruticoles et similaires
ES2546650A1 (es) * 2014-03-24 2015-09-25 Cristóbal Meseguer, S.A. Banda continua de papel plastificado reforzada para la fabricación de bolsas de productos hortofrutícolas y similares
ES2600166A1 (es) * 2015-07-24 2017-02-07 Pfm Ibérica Packaging Machinery, S.A. Un procedimiento para la fabricación de contenedores flexibles que comprenden una base inferior de configuración esencialmente rectangular
WO2017207835A1 (fr) * 2016-05-31 2017-12-07 Pers & Perssis, S.L. Sac pour le verre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183853U (ja) * 1983-05-25 1984-12-07 千代田紙業株式会社 襞部に補強材を挿入して形成する重包装袋の吹込口の構造
JPH0572742U (ja) * 1992-03-11 1993-10-05 株式会社太洋商会 角底補強型合成樹脂製手提用袋
JPH0664558U (ja) * 1993-02-24 1994-09-13 和彦 根田 補強板付クッションバッグ
US20070071370A1 (en) * 2004-05-13 2007-03-29 Jakob Schneider Freestanding bag
JP2010013127A (ja) * 2008-07-01 2010-01-21 Ishizaki Shizai Kk 台紙付き袋及び袋内蔵ケース

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183853U (ja) * 1983-05-25 1984-12-07 千代田紙業株式会社 襞部に補強材を挿入して形成する重包装袋の吹込口の構造
JPH0572742U (ja) * 1992-03-11 1993-10-05 株式会社太洋商会 角底補強型合成樹脂製手提用袋
JPH0664558U (ja) * 1993-02-24 1994-09-13 和彦 根田 補強板付クッションバッグ
US20070071370A1 (en) * 2004-05-13 2007-03-29 Jakob Schneider Freestanding bag
JP2010013127A (ja) * 2008-07-01 2010-01-21 Ishizaki Shizai Kk 台紙付き袋及び袋内蔵ケース

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014064307A1 (fr) * 2012-10-22 2014-05-01 Cristobal Meseguer, S.A. Bande continue pour la fabrication de sacs de type panier en papier plastifié pour produits hortofruticoles et similaires
WO2014064308A1 (fr) * 2012-10-22 2014-05-01 Cristobal Meseguer, S.A. Bande continue en papier plastifié pour la fabrication de sacs pour produits hortofruticoles et similaires
ES2463640A1 (es) * 2012-10-22 2014-05-28 Cristóbal Meseguer, S.A. Banda continua de papel plastificado para la fabricación de bolsas para productos hortofrutícolas y similares
ES2463617A1 (es) * 2012-10-22 2014-05-28 Cristóbal Meseguer, S.A. Banda continua para la fabricación de bolsas tipo cesta de papel plastificado para productos hortofrutícolas y similares
GB2521967A (en) * 2012-10-22 2015-07-08 Cristobal Meseguer Sa Continuous band of plastic-coated paper for the production of bags for fruit and vegetable produce and similar products
WO2014091039A1 (fr) * 2012-12-14 2014-06-19 Cristobal Meseguer, S.A. Bande continue pour la fabrication de sacs en papier plastifié avec plaque pour produits hortofruticoles et similaires
ES2476440A1 (es) * 2012-12-14 2014-07-14 Crist�Bal Meseguer, S.A. Banda continua para la fabricación de bolsas de papel plastificado con placa para productos hortofrut�colas y similares
ES2546650A1 (es) * 2014-03-24 2015-09-25 Cristóbal Meseguer, S.A. Banda continua de papel plastificado reforzada para la fabricación de bolsas de productos hortofrutícolas y similares
WO2015144951A1 (fr) * 2014-03-24 2015-10-01 Cristobal Meseguer, S.A. Bande continue de papier plastifié renforcée pour la fabrication de sacs pour produits hortofruticoles et similaires
ES2600166A1 (es) * 2015-07-24 2017-02-07 Pfm Ibérica Packaging Machinery, S.A. Un procedimiento para la fabricación de contenedores flexibles que comprenden una base inferior de configuración esencialmente rectangular
WO2017207835A1 (fr) * 2016-05-31 2017-12-07 Pers & Perssis, S.L. Sac pour le verre

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