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
  • B65D33/16—End- or aperture-closing arrangements or devices
  • B65D33/1691—End- or aperture-closing arrangements or devices using adhesive applied to attached closure elements
• • 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
  • B65D33/16—End- or aperture-closing arrangements or devices
  • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
  • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor

Definitions

• the invention relates to a bag made of paper, plastic or plastic / paper laminate according to the preamble of patent claim 1.
• Bags or sacks of the type mentioned have been known for many years in many designs. They serve to accommodate food and other products, and they can be closed again after first opening the consumer. Many of the known bags also have an initial opening indicator which indicates to the consumer whether the bag has already been opened once or not. The means for indicating the Clearö réelle are usually costly to manufacture and / or they often interfere with the aesthetic appearance of the bag.
• An object of the present invention is to provide a low-cost bag with a resealable closure and a means for Showing the first opening of the bag.
• connection of the fastening tabs of the closure with the front and the rear bag wall allows a continuous manufacturing of the bag with the closures.
• the bags can, juxtaposed lying on a means of transport, without interruption connected to the parallel supplied, initially not cut to length closures.
• the closures can be fully integrated into the bag and are not visible from the outside or only in the groove area. Due to the full integration of the closures into the interior of the bag, they are insensitive to internal pressures of the contents.
• the closure By folding the longer bag wall, the closure can be completely covered up to the first opening and protected against damage and of course against unintentional initial opening.
• the appearance of a bag with hidden closure is much better than visible closure.
• the hidden closure is also against Pollution protected.
• Figure 1 is a perspective view of a bag according to the first embodiment (left half closed, right half open), Figure 2 is a section along line II-II in Figure 1, Figure 3 is a longitudinal section along line III-III in Figure
• Figure 4 is a perspective view of a bag from behind according to the second
• Figure 5 is a section along line V-V in Figure 4
• Figure 6 is a longitudinal section along line VI-VI in Figure 4 in a further embodiment of the invention
• Figure 7 is a schematic representation of a
• Figure 8 is a section along line VIII-VIII through the
• reference numeral 1 the entirety a bag or bag, which comprises a front bag wall 3, a rear bag wall 5, the two partition walls 7 connecting the bag walls 3,5 and a bottom 9.
• a closure 11 is arranged in the form of a known extruded groove closure.
• the connection between the two bag walls 3,5 and the two attached to the groove closure 11 mounting lugs IIa and IIb takes place on the inner sides of the bag walls 3.5 along the edges 3 ', 5'.
• the connection may be made by a liquid adhesive applied to the closure 11 prior to fabrication, a pre-applied hot melt adhesive, or by a weld / seal.
• a slider 13 may be slidably mounted. This facilitates the opening and closing of the bag 1.
• the two bag walls 3.5 are cut laterally in the transition to the intermediate walls 7, if any, along the edges over a length a (see FIG. 3). This allows the endless supply of the closures 11 (see Figures 7 to 9) and inserting the closures 11 between the edges 3 ', 5'. In this case, the rear bag wall 5, which lies above, or its edge 5 'is slightly raised by suitable means. After inserting the shutter 11, the two Bag walls 3.5 outside the ends of
• the length L of the fastening tabs IIa, IIb is smaller than the width B of the bag walls 3.5.
• the groove-carrying part of the groove closure 11 has a length which corresponds at least to the width B of the bag walls 3,5.
• 12 punched holes 12 are attached to the endlessly supplied closure 11 and to its mounting lugs IIa, IIb. In the areas lying laterally outside the attachment tabs IIa, IIb, i.
• the weld seams (ultrasound, adhesive, etc.) are attached, which connect the two bag walls 3, 5 inseparably together.
• the elements carrying the fasteners of the closure 11 are connected to each other at the ends inextricably. This prevents that the slider 13 can leave the groove closure 11 laterally.
• the ends of the closure 11 may also remain open, i. they are not connected.
• a film 17 can be fastened or molded between the two fastening tabs IIa, IIb, ie their edges are connected to the fastening tabs IIa, IIb.
• opening the groove closure 11 is therefore the contents of the bag 1 accessible only when with a knife or, if a perforation is present, by breaking the film 17 is broken.
• the application or connection of the fastening tabs IIa, IIb with the upper ends 3 ', 5' of the side walls 3.5 can be done fully automatically by simple means.
• the punches 12 are initially made at intervals L in order to shorten the fastening lugs IIa, IIb with respect to the length of the groove closure 11 and to allow the thus prepared / finished closure 1 between them Insert bag walls 3.5. Thereafter, in a known manner, the welding / bonding of the closure 11 with the bag walls 3.5 and connecting the outside of the fastening tabs IIa, IIb located portions of the bag walls 3.5 are made.
• Figure 7 shows on a table or conveyor belt 19 adjacent bags l, the folds are already cut in the edges 3 ', 5'.
• the closure 11 is endlessly supplied (see also Figure 8).
• the shutter 11 can be light be positioned exactly between the side walls 3.5.
• S' is carried out with a connecting device, for example with an ultrasound welding device 21 (cf. FIG. 9) ).
• the areas of the bag walls 3, 5 located outside the ends of the fastening tabs IIa, IIb are welded / glued together.
• hotmelt adhesives or liquid adhesives applied to the fastening lugs IIa, IIb can be used.
• 3.5 layers can be applied to the bag walls, which enable gluing / welding of the bag walls 3, 5 to the closure 11.
• reference numeral 101 again schematically shows a bag with a front bag wall 103 and a rear bag wall 105 as well as intermediate walls 107.
• the front bag wall 103 has a greater height than the rear bag wall 105, so that its upper portion 119 projects beyond the upper end of the rear bag wall 105 by the amount h.
• the upper end 105 'of the rear bag wall 105 is attached to the attachment tab 111b either on the outside of the bag wall 105 or the inside of the bag wall 105 (shown in broken lines in Figure 6).
• the second attachment tabs purple of the groove closure 111 is fixed at a distance h to the upper end of the front bag wall 103 on the inside thereof.
• the connection between the groove closure 111 and the bag walls 103, 105 takes place analogously to that described in the first exemplary embodiment according to FIGS. 1 to 3.
• a slider 113 may be arranged on the groove closure 111.
• the length L of the fastening tabs purple, 111b is again smaller than the width B of the bag walls 103, 105.
• the length of the groove-carrying portion of the groove closure 111 may be slightly smaller than the width B of the bag walls 103,105.
• the areas 115 of the two bag walls 103, 105 lying outside the fastening tabs lilac, 111b are adhesively bonded to one another in this section.
• a Sollbru ⁇ h Scheme 121 is formed, which is formed for example by two parallel perforation lines 123.
• a protective film 125 which can be peeled off from the bag can be applied over the predetermined breaking region (see FIG.
• the insertion and connection of the closure 111 with the bag 101 takes place as in the first exemplary embodiment according to FIGS. 7 to 9.
• the section 119 projecting beyond the rear bag wall 105 does not disturb the assembly (compare FIGS. 8 and 9).
• the upper portion 119 of the front bag wall 103 which projects beyond the closure 111, is folded over with the bag walls 103, 105 after the closure 111 has been fastened, ie, bonded to the rear bag wall 105 at its end 127 (FIG. 6). After folding over the upper portion 119, on the one hand, the upper opening of the bag 101 is completely closed and, in addition, the groove closure 111 is covered. The predetermined breaking region therefore lies above the closure 111.
• the upper section 119 also called a flap, may alternatively be attached to the rear bag wall 105.
• a foil 117 can also be attached as an opening guarantee to the fastening lugs lilac, 111b of the closure III, provided that both fastening lugs lilac and lllb are respectively fastened to the inside of the bag walls 103, 105.
• the opening of the bag 101 according to the invention according to FIGS. 4 to 6 takes place by tearing open the predetermined breaking region 121 along the perforation lines 123 or by peeling off the protective film 125, which exposes the predetermined breaking region 121. Thereafter, the groove closure 111 is freely accessible and, if in addition there is a film 117 as a first-opening guarantee, it still has to be broken open to access the contents of the bag.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Bag Frames (AREA)
• Packages (AREA)
• Medicinal Preparation (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

Family

ID=35058909

Family Applications (1)

Country Status (10)

Cited By (6)

Families Citing this family (9)

Citations (6)

Family Cites Families (8)

• 2004
  • 2004-10-07 CH CH01645/04A patent/CH704109B1/de not_active IP Right Cessation
• 2005
  • 2005-07-28 US US11/575,238 patent/US20080044110A1/en not_active Abandoned
  • 2005-07-28 CA CA002579794A patent/CA2579794A1/en not_active Abandoned
  • 2005-07-28 WO PCT/CH2005/000449 patent/WO2006037240A1/de active Application Filing
  • 2005-07-28 ES ES05760764T patent/ES2326543T3/es active Active
  • 2005-07-28 AT AT05760764T patent/ATE429389T1/de not_active IP Right Cessation
  • 2005-07-28 DE DE502005007153T patent/DE502005007153D1/de active Active
  • 2005-07-28 EP EP05760764A patent/EP1796977B1/de not_active Not-in-force
  • 2005-07-28 PL PL05760764T patent/PL1796977T3/pl unknown
  • 2005-07-28 JP JP2007534985A patent/JP4901742B2/ja not_active Expired - Fee Related

Patent Citations (6)

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