WO2019042880A1 - Ensemble à films gonflable - Google Patents

Ensemble à films gonflable Download PDF

Info

Publication number
WO2019042880A1
WO2019042880A1 PCT/EP2018/072862 EP2018072862W WO2019042880A1 WO 2019042880 A1 WO2019042880 A1 WO 2019042880A1 EP 2018072862 W EP2018072862 W EP 2018072862W WO 2019042880 A1 WO2019042880 A1 WO 2019042880A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
film
foils
inflatable
films
Prior art date
Application number
PCT/EP2018/072862
Other languages
German (de)
English (en)
Inventor
Bernd Fuchs
Original Assignee
Bernd Fuchs
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 Bernd Fuchs filed Critical Bernd Fuchs
Priority to DE112018004870.5T priority Critical patent/DE112018004870A5/de
Publication of WO2019042880A1 publication Critical patent/WO2019042880A1/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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/051—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
    • B65D81/052—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements

Definitions

  • the invention relates to an inflatable foil assembly having two outer foils and one or two valve foils located between these outer foils, the foils being connected by a plurality of welds and defining air chambers, which are individually inflatable and permanently maintain their filled condition due to the valve foils.
  • an inflatable film assembly which has two outer films and two located between these outer films valve foils, which foils are connected by a plurality of welds, wherein the two outer films are superimposed and an upper and a lower side edge and are connected along the upper side edge in an upper weld and along the lower side edge in a lower weld.
  • the two superimposed valve sheets have an upper edge and a lower edge which are both located between the upper and lower welds.
  • the two outer foils and the two valve foils are connected to one another in an inner weld seam located between the upper and lower weld seams so that first and second sections alternate alternately, wherein in the first sections all the foils are connected to each other and in the second sections each valve foil only is connected to its adjacent outer film, but not the two valve sheets are connected together, so that a passage remains free.
  • the films are still connected to each other by transverse welds and thereby limit air chambers that are accessible only through the passages.
  • an inflation channel is formed, which is open in an inflation opening and in the area of the passages. When air is introduced into the inflation opening, the inflation channel expands, opening the passageways to a passageway.
  • each of the two valve sheets protrudes into the inflation channel so far that for each individual valve foil there is the danger of being pressed by the inflowing air in front of the passages and thus the inflow of air into the air chamber. hindering. It is not certain that all the air chambers will actually be filled when the filling process is performed.
  • valve films extending into the inflation channel are each connected to the adjacent outer film in the inflation channel by at least one heat-sealing point. This prevents them from moving away from the outer film and obstructing the filling process. You can not lie down in front of the passages.
  • the at least one valve foil serves to block the return path of the air from the felt air chamber.
  • the valve foils should not obstruct the filling process as far as possible.
  • the edges of the foils In the production of the inflatable film assemblies is usually worked with sheet-like film material, which is available as a roll. During production, the edges of the foils must be positioned as accurately as possible and held in position. There is a certain tolerance across the weld, in the y direction, necessary. It is difficult in practice to position a valve film during the entire production in such a way that its upper edge is exactly flush with the inner weld seam, ie it does not reach into the inflation channel. Their upper edge must not be within the width of the inner weld, because then there is a risk that the passage is closed during welding.
  • an inflatable film assembly the two outer films and one or two located between these outer films valve foils which sheets are interconnected by a plurality of welds, the two outer sheets being superimposed and having upper and lower side edges joined along the upper side edge in an upper weld and along the lower side edge in a lower weld, one or two Overlying valve sheets have an upper edge and a lower edge, which are both located between the upper and the lower weld, wherein the two outer sheets and the one or two valve sheets are connected in an inner weld located between the upper and lower welds so that alternating first and second sections in the x-direction, wherein in the first sections all the films are connected to each other and in the second sections in training with only one valve film, the valve film is connected to one of the outer films, but not the other, so d a passage is left free, and in the formation with two valve foils, each valve foil is connected only to the outer foil adjacent to it, but the two valve foils are not connected to each other so that one passage
  • the upper edge of the one valve film protrudes or protrude the upper edges of the two valve sheets into the inflation channel by a small amount d.
  • This dimension d is selected such that, on the one hand, the valve foils protrude only slightly and therefore can not disturb the inflation process, on the other hand, enough tolerance remains for the positioning and guiding of the valve foils so that normal production is possible. It has surprisingly been found that the just in the inflation channel reaching into the valve sheets are relatively stiff there, because they are only short. A kinking of a valve sheet due to air entering the passage was not observed.
  • valve film On the short way, up the valve film extends into the inflation channel, it can not be deformed in the practically present conditions during inflation so that it obstructs the inflation, so lies down in front of the open passage. Even with very soft valve films, the portion projecting into the inflation channel is not sufficient to close off the opened passage.
  • the passageways inevitably open during the inflation process.
  • the outer films stretch and form a pipe bounded by the upper weld and the inner weld.
  • a tension in the film material occurs in the circumferential direction of the tube, which leads to the opening of the passages.
  • the foils are furthest away from each other, where the passage width e occurs.
  • the center of the passages has the greatest distance from the adjacent first portions of the inner weld.
  • the passage width e is measured in the z direction, transverse to the films.
  • the passages can be formed sufficiently wide in the x-direction, ie in the direction of the course of the inner weld seam, that a sufficiently large passage width e is achieved.
  • the range for the dimension d can be influenced, with which the upper edge is located in the inflation channel.
  • the passage width e is still dependent to some extent on the air pressure in the inflation channel. It is determined at the air pressure for which a specific product, ie a concrete inflatable foil arrangement is designed. If this value of the air pressure is not known, the air pressure is used for comparable products. When in doubt, a higher air pressure is used rather than a lower air pressure. Typical values for the air pressure are in the range of 0.6 to 0.7 bar overpressure.
  • valve foils are connected to each other, with one or the other outer film and all foils together so that a chicane for the incoming air is formed.
  • the air pressure within the filled air chamber compresses the valve foils so that a return path is closed.
  • the two valve sheets do not have to lie exactly above one another with their upper edges in the y direction.
  • the position of the upper edge of each individual valve foil in the embodiment with two valve foils can be in the specified range, ie in the range greater than zero to e. For each individual valve foil, a tolerance range is thus opened in each case.
  • the inflatable film arrangement according to the invention can be manufactured in one operation. It differs from such prior art film assemblies in which first a part, for example a valve assembly, and then only the entire film assembly is made. A gradual production is possible.
  • the films used correspond to the films used in the prior art.
  • the welding methods are also carried out according to the state of the art.
  • a film which is not to be connected to the opposite film in the region of the passage during welding of the inner weld provided with a heat-resistant element, in particular printed. It extends in the x-direction over the length of the second section and prevents welding in the region of the passage.
  • these elements are periodically mounted in the x-direction on one of the valve sheets.
  • FIG. 1 is a plan view of a portion of the inflatable foil assembly in a first embodiment with two valve foils
  • Fig. 2 a perspective view of a smaller, inflated
  • Partial area with an inflation channel and two air chambers, partially shown, is the open passage, in a figure 1 corresponding embodiment and
  • Fig. 3 a plan view as Figure 1 for a second embodiment with only one
  • Valve film For the description, a right-handed coordinate system x, y, z with orthogonal coordinates is used.
  • the inflatable film assembly extends in the delivery state practically exclusively in the x-y plane. As a result, it takes up little space during transport. Only by inflation does it also extend in the z-direction.
  • FIGS. 1 and 2 will first be discussed below.
  • the second embodiment of Figure 3 is discussed below only insofar as it differs from the first embodiment.
  • the inflatable film assembly has two outer films 20, 22, namely the lower outer film 20 and the upper outer film 22 shown in Figure 1. Both are positioned exactly one above the other and have the same width measured in the y direction. They are present as web material which extends in the x-direction, and each have an upper side edge 24 and a lower side edge 26.
  • the two outer films 20, 24 are in the region of their upper side walls 24 in an upper weld 28 tightly connected together. It runs essentially in the x direction, in the y direction it has the usual width of a weld of, for example, 2 to 6 mm. This width also applies to all other welds.
  • the two outer films 20, 24 are further connected to each other at their lower side edges by a lower weld 30, it also runs in the x direction.
  • valve films 32, 34 Between the outer films 20, 22 there are two valve films 32, 34, namely the lower valve film 32 and the upper valve film 34. Both are present as web material. Both have the same width measured in the y direction.
  • the two valve sheets 32, 34 are each bounded by an upper edge 36 and a lower edge 38.
  • the lower valve film 32 has on its upper side facing the observer in FIG. 1 elements 40 which are arranged at a periodic interval in the x direction and are located in the vicinity of the upper edge 36. They are known from the prior art. They are made of heat-resistant material and are especially printed on the top.
  • the heat-resistant elements 40 extend directly to the upper edge 36. It is possible to press both valve sheets 32, 34 on their respective surface facing the other valve sheet with heat-resistant elements 40. bridges, which advantageously extend directly to the upper edge 36.
  • the two valve foils 32, 34 are identical.
  • the elements 40 may serve as markers for the exact positioning of the valve sheets 32, 34 during manufacture. If, during manufacture, the two valve foils 32, 34 are superimposed, the elements 40 are in each case directly above one another.
  • the described films 20, 22, 32, 34 are connected to one another in a special manner in the region of an inner weld 40 which runs parallel to the x-axis.
  • First sections 44 and second sections 46 alternate alternately in the x direction one behind the other. Their period is the same as that of the elements 40.
  • the elements 40 are located where the second portions 46 are and cause the difference of the second portions 46 to the first portions 44, namely a locally missing welding operation.
  • all four foils 20, 22, 32, 34 are welded together.
  • the upper outer film 22 and the upper valve film 34 are connected to one another.
  • a passage 48 remains free. It has the width of the elements 40 in the x-direction.
  • the heat-resistant elements 40 are provided only on a valve film. It is possible to mount them on both valve sheets 32, 34. Then, they are arranged either in the period of the first and second portions 44, 46 or in the double period, that is, twice the period of the first and second portions. In both cases, the valve films 32, 34 are identical. In the first case, the elements 40 overlap each other during manufacture and directly opposite each other. In the second case, the two valve foils are offset by one period during production in the x direction, so that an element of one valve foil and an element of the other valve foil are arranged alternately in the second partial regions.
  • the films 20, 22, 32, 34 are still connected to each other by further transverse welds 50. They extend from the inner weld 42 in the y-direction to the lower weld 30. Overall, thereby air chambers 52 are created, each air chamber 52 each having a passage 48. The air chambers 52 are each accessible only through the associated passage 48.
  • an inflation passage 54 is formed between the upper weld 28 and the inner weld 42, which are both parallel to each other. It has an inflation port 56 into which air may be blown in the x-direction to fill the film assembly. When air is blown into the inflation opening 56, the inflation channel 54 first fills. It assumes the shape of a tube, see FIG. 2. A tension occurs in the circumferential direction, as a result of which the passages 48 are opened, as FIG. 2 shows. They open by the dimension e, called passage width. This passage width e is measured in the z direction, it is measured in the center of the passage 48 seen in the x direction.
  • valve foils 32, 34 protrude in the y-direction with respect to the inner weld seam 42, they protrude into the inflation passage 54.
  • the extent to which they extend into the inflation channel 54 is denoted by d.
  • the dimension d may be different for the two valve foils 32, 34.
  • the dimension d is in the embodiment shown in the range greater than zero to e. Preferably, it is in the range of greater than zero to e / 2. However, it is also possible that d lies in the range greater than zero to 2e. It is also possible for d to be in the range of greater than zero to 3e and in the range of greater than zero to 4e or 5e.
  • the inflatable film arrangement only has one valve film 32.
  • This is, as in the first embodiment, provided with elements 40 on its upper side facing the observer.
  • the second sections 46 it is connected to the lower outer film 20, but not to the upper outer film 22.
  • the passages 48 are now not, as in the first embodiment, between the valve sheets 32, 34, but between the valve film 32 and the upper outer film 22 is formed. It is possible to provide the elements 40 not on the valve film 32 but on the lower outer film 20. It is also possible, the elements 40 on the valve sheet 32 with double period and at the same time to provide on the lower outer films 20 with double period, see above.
  • the inflation opening is limited only by the two valve foils. It is possible to form the inflation opening 56 so that the channel in which the passages 48 are located is always clearly recognizable and is spaced from the opening of the one and / or other outside channel 58. This can be achieved, for example, by the outer foils 20, 22 being cut back in the area of the inflation opening 56, for example C-shaped, so that the valve foils 32, 34 substantially delimit the inflation opening 56, or the valve foils 32, 34 from the inflation opening 56 and preferably to strike back on the outside of the outer films 20, 22.
  • the inflatable foil assembly has two outer sheets 20, 24 and one or two valve sheets 32, 34 located between these outer sheets 20, 24.
  • the sheets are connected by a plurality of welds.
  • the one or two superimposed valve sheets 32, 34 have an upper edge 36 and a lower edge 38.
  • the two outer sheets 20, 24 and the one or two valve sheets 32, 34 are in a lying between an upper and a lower weld 28, 30 inner weld seam 42 are connected to each other so that first and second sections 44, 46 alternately alternate, with a passage 48 remains free in the second sections 46.
  • the films define air chambers 52 that are accessible only through the passages 48. Between the upper weld 28 and the inner weld 42, an inflation passage 54 is formed, which is open in an inflation opening 56 and in the region of the passages 48.
  • the inflation channel 54 When filling air in the inflation opening 56, the inflation channel 54 inflates, thereby the passages 48 are opened to a passage width e.
  • the upper edge 36 of the at least one valve film 32, 34 projects into the inflation channel 54 by the amount d, the dimension d being in the range greater than zero to the passage width e.

Landscapes

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

Abstract

Système à films gonflable comprenant deux films externes (20, 24) et, intercalés entre ces films externes (20, 24), des films formant valves (32, 34). Les films sont reliés par plusieurs joints soudés. L'un ou les deux films formant valves (32, 34) ont une marge supérieure (36 et une marge inférieure (38). Les deux films externes (20, 24) et l'un ou les deux films formant valves (32, 34) sont reliés dans un joint soudé (42) interne situé entre un joint soudé supérieur (28) et un joint soudé inférieur (30) de manière telle que le premier et le deuxième élément partiel (44, 46) se succèdent alternativement, de manière à ce qu'un passage (48) demeure libre dans les deuxièmes éléments partiels (46). Les films (20, 22, 32, 34) délimitent des chambres à air (52) qui ne sont accessibles que par les passages (48). Un canal de gonflage (54), formé entre le joint soudé supérieur (28) et le joint soudé inférieur (42), est ouvert dans un orifice de gonflage (56) et dans la zone des passages (48). Lors du remplissage d'air dans l'orifice de gonflage (56), le canal de gonflage (54) se gonfle et ainsi les passages (48) s'ouvrent à une largeur de passage e. Mesuré à partir de l'intérieur du joint soudé (42), la marge supérieure (36) de l'au moins un film formant valve (32, 34) avance dans le canal de gonflage (54) de la mesure d, la mesure d se situant dans la plage comprise au-dessus de zéro jusqu'à la largeur de passage e.
PCT/EP2018/072862 2017-08-29 2018-08-24 Ensemble à films gonflable WO2019042880A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112018004870.5T DE112018004870A5 (de) 2017-08-29 2018-08-24 Aufblasbare Folienanordnung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017119825 2017-08-29
DE102017119825.3 2017-08-29

Publications (1)

Publication Number Publication Date
WO2019042880A1 true WO2019042880A1 (fr) 2019-03-07

Family

ID=63364076

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/072862 WO2019042880A1 (fr) 2017-08-29 2018-08-24 Ensemble à films gonflable

Country Status (2)

Country Link
DE (1) DE112018004870A5 (fr)
WO (1) WO2019042880A1 (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067530A5 (fr) 1969-11-06 1971-08-20 Normos Norbert
FR2291114A2 (fr) 1974-11-12 1976-06-11 Normos Norbert Element de calage integre
JPH01199857A (ja) 1988-01-29 1989-08-11 Taiyo Shokai:Kk 収納容器袋
US5427830A (en) 1992-10-14 1995-06-27 Air Packaging Technologies, Inc. Continuous, inflatable plastic wrapping material
JPH0834478A (ja) 1994-05-18 1996-02-06 Idemitsu Petrochem Co Ltd エアバブル袋およびその製造方法
KR20040001374A (ko) 2002-06-28 2004-01-07 김성권 이동 통신에서 사용자 프라이버시 보호를 위한 익명시스템 및 방법
WO2004108560A1 (fr) 2003-06-10 2004-12-16 Hee-Bong Lim Materiau d'emballage tampon et procede de fabrication
JP2005162269A (ja) 2003-12-03 2005-06-23 Matsushita Electric Ind Co Ltd 緩衝用包装材
DE102007010609B4 (de) 2006-03-03 2010-04-08 Chian Hua Sindian Liao Luftkammer-Verpackungsfolie und Verfahren zu ihrer Herstellung
DE102009044691A1 (de) * 2008-11-28 2010-06-10 Air-Bag Packing Co., Ltd, Sindian Verpackungsbeutel mit selbsttätig öffnendem Luftventil
US20100215293A1 (en) * 2008-08-25 2010-08-26 Indis Air Corp Air bag with pressurization space
US20130206259A1 (en) * 2012-02-14 2013-08-15 Air-Bag Packing Co.,Ltd. Nonlinear air stop valve structure

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067530A5 (fr) 1969-11-06 1971-08-20 Normos Norbert
FR2291114A2 (fr) 1974-11-12 1976-06-11 Normos Norbert Element de calage integre
JPH01199857A (ja) 1988-01-29 1989-08-11 Taiyo Shokai:Kk 収納容器袋
US5427830A (en) 1992-10-14 1995-06-27 Air Packaging Technologies, Inc. Continuous, inflatable plastic wrapping material
JPH0834478A (ja) 1994-05-18 1996-02-06 Idemitsu Petrochem Co Ltd エアバブル袋およびその製造方法
KR20040001374A (ko) 2002-06-28 2004-01-07 김성권 이동 통신에서 사용자 프라이버시 보호를 위한 익명시스템 및 방법
WO2004108560A1 (fr) 2003-06-10 2004-12-16 Hee-Bong Lim Materiau d'emballage tampon et procede de fabrication
JP2005162269A (ja) 2003-12-03 2005-06-23 Matsushita Electric Ind Co Ltd 緩衝用包装材
DE102007010609B4 (de) 2006-03-03 2010-04-08 Chian Hua Sindian Liao Luftkammer-Verpackungsfolie und Verfahren zu ihrer Herstellung
US20100215293A1 (en) * 2008-08-25 2010-08-26 Indis Air Corp Air bag with pressurization space
DE102009044691A1 (de) * 2008-11-28 2010-06-10 Air-Bag Packing Co., Ltd, Sindian Verpackungsbeutel mit selbsttätig öffnendem Luftventil
US20130206259A1 (en) * 2012-02-14 2013-08-15 Air-Bag Packing Co.,Ltd. Nonlinear air stop valve structure

Also Published As

Publication number Publication date
DE112018004870A5 (de) 2020-06-18

Similar Documents

Publication Publication Date Title
EP1981768B1 (fr) Sac et son procédé de réalisation
DE3115098A1 (de) "verfahren und vorrichtung zum steuern einer sich bewegenden materialbahn"
DE2825903C3 (de) Vorrichtung zum Ineinanderfalten von mehreren Bahnen
DE102014105193A1 (de) Druckausgleichsetikett zum Aufkleben auf eine Oberfläche und Verfahren
DE102012109890B4 (de) Automatische Dehnungspuffereinrichtung
DE60033585T2 (de) Kunststoffolie Vorratsrolle
DE19641145C2 (de) Selbstdichtendes Ventil für aufblasbare Körper und Verfahren zu seiner Herstellung und zum Einsetzen in den aufblasbaren Körper
DE10160408C2 (de) Gasgefüllte Füllkörper
DE2844523A1 (de) Bewaesserungseinrichtung
EP1819458B1 (fr) Procédé de production d'un échangeur de chaleur
EP2934841B1 (fr) Procédé de préparation d'un semi-fini en matériau de fibres en vue d'un procédé de pressage humide
EP1245365A1 (fr) Barre de retournement a air
WO2019042880A1 (fr) Ensemble à films gonflable
WO1999037385A1 (fr) Sac filtrant pour filtre a air du type poche et son procede de fabrication
DE102005058177A1 (de) Verfahren zur Herstellung eines Wärmeaustauschers
DE102011006930A1 (de) Schweißvorrichtung und Schweißblech
WO2019042893A1 (fr) Système à films gonflable
EP2810880A1 (fr) Dispositif d'ouverture pour l'ouverture d'une section de sac d'une bande de feuille dans une installation d'ensachage
DE102013204915A1 (de) Brennstoffzelle mit in Membran-Elektroden-Einheit eingeschlagener Bipolarplatte sowie Verfahren und Vorrichtung zum Herstellen einer Brennstoffzelle
DE102006031340B4 (de) Mehrlagige metallische Flachdichtung
DE102011078724A1 (de) Thermisch unfixiertes Flächengebilde für ein Spiralsieb und Verfahren zum Herstellen eines Spiralsiebes
WO1995033138A1 (fr) Materiau en feuille en matiere thermoplastique et procede pour la jonction d'une ou de plusieurs longueurs d'un tel materiau
EP3546382A1 (fr) Barre diffusant de la vapeur et tunnel de rétraction
WO2017186930A1 (fr) Plaque de distribution pour système hydraulique
DE102022125347B4 (de) In einem Stück als OPW gewebter druckabhängiger Luftauslass insbes. zum Anbringen auf Ausströmöffnungen von Luftsäcken sowie Luftsack mit einem daran angenähten Luftauslass

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18759313

Country of ref document: EP

Kind code of ref document: A1

REG Reference to national code

Ref country code: DE

Ref legal event code: R225

Ref document number: 112018004870

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18759313

Country of ref document: EP

Kind code of ref document: A1