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
  • B65D33/00—Details of, or accessories for, sacks or bags
  • B65D33/06—Handles
  • B65D33/12—String 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
  • 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

Definitions

• the present invention belongs to the technological sector of bags and packages designed for storing and transporting a series of articles, of the kind normally commercially provided to the customers to carry the acquired items, but can also have other uses.
• These bags can be manufactured in paper or other material the properties of which enable the same result, the invention relating to a bag, preferably made of paper, having the aspect of a handbag, which can be assembled in the absence of any adhesive.
• the conventional paper bags are made up of a folded and glued sheet of paper, that is, the side and bottom closure is obtained by gluing.
• the opposed ends of the paper sheet are united by adhesive in a horizontal movement to form the bag body and the bottom requires gluing of independent parts to be formed.
• the union of bag sections by adhesive is a fragility aspect and this is particularly true as concerns the bottom, since it will support the weight of the item to be transported, becoming the most fragile bag spot.
• BR 202014019382-6 As an example of a patent of this kind BR 202014019382-6 is cited, which reveals a bag obtained from a carton, cardboard, paper or similar ones, which is creased, cut, folded and glued, being provided with reinforcements for the bottom and upper folds.
• Several other bags and packages made of paper sheets are known, differing by the configuration of creases and folds that are performed to obtain the assembled shape of the bag, such as those described in the US2669382 , US3342402 , US6176615 and US2010/0111447 documents. In order to be assembled all these bags have in common the need to be glued.
• gluing to make the bags entails a series of problems and drawbacks, such as the cost of the equipment for gluing, required inputs, glue cure time, physical space required and adequate waste disposal. Besides, gluing is by nature susceptible to failures, leading to production process losses as well as setbacks and even damage of what is being transported, when in use. It is also the most expensive step of the production process. No matter the bag is assembled manually or in a machine, the required time for gluing is the higher among all process steps. In these conventional bags, the production of small and average amounts of sizes does not justify the cost with the machine setup.
• the present invention refers to a bag formed in paper (or other material of similar properties), folded and fitted, which dispenses with the use of glue and has the aspect of a 'handbag'.
• a creased paper sheet for folds and cuts is the "map" for the formation of the structural body of the package, which enables the commercialization of the sheets accompanied by reinforcements and handles, so that the commercial location itself can perform the assemblage in seconds, thus reducing the cost of acquisition, storage, cubage, weight/transportation and accommodation.
• the end price is considerably reduced and the resulting product, in spite of being manually sealed, is competitive before the machine-assembled and - glued bags.
• the glueless model can also be machine-assembled. Further advantages of the absence of the use of glue are that users will no longer be in contact with a dangerous product and the bag disposal for recycling is more appropriate. Besides, the elimination of glue enables to obtain a more resistant product without the conventional bags bottom inherent fragility, and further, the productive process which makes use of the same existing resources, methods and machinery, while reducing inputs and production time.
• the paper sheet is folded in a vertical movement, producing a U-configured body, having integral bottom and package opening at opposing ends.
• the integral bottom supports the weight to be transported and provides the bag with superior resistance.
• each wing originates from one of the front and back faces. These wings accommodate one beside the other, forming a double wall and giving origin to the bag sides, which render the bag body effectively closed in its sides, again without the need of glueing.
• the bag sheet is provided with orifices for the passage of handles at strategic spots, so that at this assembling stage these are disposed at the upper ends of the sides only, avoiding the bag front and back faces. Since the handles are applied to the sides only, they give the impression of being fitted on the front and back faces and provide the bag with the aspect of a handbag.
• a U-shaped collar At the bag opening there are folding wings, turned towards the inner portion of the front, back and side faces, forming a U-shaped collar.
• Said collar aims at accommodating profiles that provide stiffness and resistance, having the same face width and preferred height of 3 and 5 cm. Each profile plays a relevant role in the effective functionality of the product.
• the handles After the handles are applied to the sides, when the bag transports some article, its weight would naturally tend to tighten the opening, deforming it.
• the opening profiles of a certain stiffness are applied, each fitted on one side of the opening, to support the tension caused by the transported weight, maintaining the opening in the intended shape.
• the side orifices and handles which trespass these orifices.
• two orifices are provided at each of the two sides, positioned closer to the sides upper portion, separated and divided by a central crease.
• the handle When the handle is in use, it pushes each side formed by the fold between the orifices one against the other, bringing with it also each of the package faces. Causing thus the bag mouth closure and providing it with the aspect of a handbag.
• orifices can also be added to the upper end of each face and use the handbag itself for closure of the opening with a bow, providing the item with the function of a gift package.
• the configuration of creases and folds sheet of paper aims at obtaining, when the bag is assembled, the formation of triangular structures superimposed at the bottom, which increase substantially the set strength.
• the bag Once the bag is assembled, it can be compacted for storage and, according to its concept, the contraction of its structure is performed by sides and bottom, thus preserving both faces from any folding.
• the present invention relates to a folded paper bag made from a sheet (1) of paper creased for folding and with cut orifices (2), which form the guide for assembling said bag.
• the preferred mode of the invention provides a sheet (1) having in its ends parallel longitudinal creased lines, destined for folding, from now on in this specification called extreme longitudinal lines (3), which form the waist (4) of the bag opening (seen in figure 4 ) and which enable the introduction of a support (5) (which can be seen in figure 8 ), whenever necessary as required by the bag shape and dimensions.
• extreme cross-sectional lines (6) Perpendicularly to the extreme longitudinal lines (3) and at the ends of sheet (1) are disposed parallel cross-sectional creased lines, from now on referred to as extreme cross-sectional lines (6), which define the area which will form the bag sides. Said extreme cross-sectional lines (6) intercept the extreme longitudinal lines (3) and form rectangular regions (7), at the center of which are disposed orifices (2), so that said orifices (2) coincide when the longitudinal lines (3) are folded to form the bag opening waist. Orifices (2) aim at receiving the introduction of handles (8) (illustrated in figure 8 ).
• Figure 9 represents the first step, the folding of the extreme longitudinal lines (3) to form the bag waist around support (5) (whenever such is required).
• the following step is the lifting of the bag (13) front and back faces (represented in figures 11 and 12 ), by the folding of central longitudinal lines (9), forming the bag bottom.
• the folding and superimposition of the bag bottom triangular regions (12) and the superimposition of extreme cross-sectional lines (6) occurs naturally, forming the bag double sides.
• the so-obtained bag can further be compacted to be stored, as represented in figure 19 , it being sufficient to push the front and back faces one against the other until they touch each other.
• the present specification is directed to a folded paper bag and associated assembling process, endowed with industrial application, novelty and inventive step, all being requirements issued by the industrial property legislation to obtain the pleaded privilege.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Bag Frames (AREA)
• Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=90475056

Family Applications (1)

Country Status (2)

Family Cites Families (10)

• 2023
  • 2023-09-26 EP EP23869348.5A patent/EP4596436A1/fr active Pending
  • 2023-09-26 WO PCT/BR2023/050328 patent/WO2024065020A1/fr not_active Ceased

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