EP0380271B1 - Herstellung von durchscheinenden wabenförmigen Faltjalousien unter Verwendung von Trennstreifen - Google Patents

Herstellung von durchscheinenden wabenförmigen Faltjalousien unter Verwendung von Trennstreifen Download PDF

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Publication number
EP0380271B1
EP0380271B1 EP19900300638 EP90300638A EP0380271B1 EP 0380271 B1 EP0380271 B1 EP 0380271B1 EP 19900300638 EP19900300638 EP 19900300638 EP 90300638 A EP90300638 A EP 90300638A EP 0380271 B1 EP0380271 B1 EP 0380271B1
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EP
European Patent Office
Prior art keywords
adhesive
strip
strips
sheet material
cells
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP19900300638
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English (en)
French (fr)
Other versions
EP0380271A2 (de
EP0380271A3 (de
Inventor
Paul Swiszcz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunter Douglas International NV
Original Assignee
Hunter Douglas International NV
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Filing date
Publication date
Application filed by Hunter Douglas International NV filed Critical Hunter Douglas International NV
Publication of EP0380271A2 publication Critical patent/EP0380271A2/de
Publication of EP0380271A3 publication Critical patent/EP0380271A3/de
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Publication of EP0380271B1 publication Critical patent/EP0380271B1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D3/00—Making articles of cellular structure, e.g. insulating board
    • B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
    • B31D3/0207—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section of particular shape or construction
    • B31D3/0215—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section of particular shape or construction for window coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/04—Attaching together sheets, strips or webs; Reinforcing edges by exclusive use of adhesives

Definitions

  • This invention relates to a method of manufacture of an improved cellular window shade. More particularly, the invention relates to a method of manufacture of an expandable and collapsible material for a cellular window shade, which consists of a number of horizontally-extending cells formed of fabric strips adhesively bonded to one another, according to which sheer fabrics not previously suited for manufacture of such shades may be employed.
  • cellular shades in which the body of the shade consists of a number of identical fabric strips, folded and adhesively-bonded to one another so as to define cells.
  • the cells extend transversely, but they may also be arranged vertically, or at an angle to the horizontal.
  • the shade When the shade is raised, the cells are collapsed; when the shade is lowered, the cells expand.
  • Such shades contain essentially static masses of air, and thus provide useful thermal insulation.
  • US-A-4677013, 4685986, 4631217, 4677012 and 4676855 show further methods of manufacture of cellular shades.
  • the strips may be creased to take a Z-shape, and tabs on either side of the strip are adhesively bonded to the prior and successive strips to form the completed shade structure. See also US-A-4732630 and EP-A-375146.
  • the fabrics have had to have been selected such that the adhesive does not penetrate the fabric, so that the tabs from a first strip do not adhere to the strip from which they are formed, but only to the strips to which they are to be bonded; i.e., so that the interiors of the cells are not bonded closed.
  • Sheer refers to fabrics which are highly translucent or are substantially transparent to visible light. Such sheer fabrics are normally relatively open weave, and are typically woven or knit of monofilament thread.
  • a bead of conventional adhesive sufficient to form a good bond when employed to form cellular blinds of typical non-sheer materials is placed on these open-weave sheer fabrics, the adhesive tends to penetrate the fabric, particularly if pressure is exerted thereon to ensure a good bond.
  • sheer materials are used in the normal manufacturing process, the inner walls of the cells tend mutually to adhere, which ultimately prevents the blind from opening properly. This difficulty has in fact prevented manufacture of cellular shades of sheer materials, especially fabrics, permeable to liquid adhesives, which would be highly desirable to many consumers.
  • US-A-4673600 addresses this problem, and discloses how sheer materials can be formed into "honeycomb” or cellular shades and adhesively bonded by allowing the adhesive to cure while the cells are in the expanded state. This method is useful if quick-setting adhesives, e.g. hot melt adhesives, are used. However, this method poses certain constraints on the design of the cellular shade thus manufactured, and on the manufacturing processes employed.
  • the prior methods may be considered to include the steps of: providing the sheet material in a strip form; folding the strip material along parallel lines in a longitudinal direction corresponding to the longitudinal direction of the cells to be formed; applying adhesive in liquid state to one or more areas of the strips of sheet material; stacking said strips so as to bring together the parts of the strips of sheet material to be mutually adhered in direct contact to form the cells; and allowing the adhesive to cure.
  • the present invention is characterised by the steps of: positioning a strip of non-bonding material with respect to the folded strip of sheet material so that during subsequent steps said non-bonding material will prevent any portion of a particular strip of sheet material permeated with adhesive from adhering to any other portions of the same strip of sheet material in a manner which would prevent formation of a cell; and removing said strips of non-bonding material after the adhesive has cured.
  • the method of the invention can yield a reasonably priced product.
  • Figure 1 shows the shade of the invention in the shades-open position, that is, wherein the shade is drawn letting light flow unimpeded through an accompanying window (not shown), while Figure 2 shows the corresponding shades-closed position.
  • the shade of the invention comprises a number of cells indicated generally at 10 which extend transversely to the window.
  • the cells are expanded, exhibiting a generally polygonal cross-section, while in the Figure 1 condition they are shown having been compressed by drawing a base member 12 upwardly.
  • the arrangement of draw cords 14 shown controlling the motion of the base member 12 is strictly schematic and by no means a limitation on the invention.
  • the cords pass through the centers of the cells and are invisible.
  • the cells In the expanded position of Figure 2 the cells each essentially retain static air masses, which serve as very useful window insulation.
  • the open ends of the cells may move within U-shaped vertical end caps to assist in retention of air therein.
  • Figure 5 shows a conventional prior art construction, which may be carried out according to the teachings of US-A-4450027, in which successive strips of fabric 20 have been creased to define tabs 20a and central portions 20b.
  • the tabs 20a are adhesively bonded to the central portions 20b by conventional adhesives as at 22.
  • the fabric used in this prior art embodiment is not sheer and is essentially impermeable or only slightly permeable to the adhesive, such that the shade material can be manufactured simply by putting a bead of adhesive on the tabs 20a and stacking the strips such that they are aligned with the central body portions 20b of successive strips. After the adhesive has set, the material of the shade is essentially completed.
  • a sheer fabric material which is typically translucent or transparent in the structure of Figure 5.
  • Such materials tend to be of open weave construction to let light pass through freely and are commonly knit of woven of monofilament synthetic fibers.
  • Such monofilament fibers are very smooth-surfaced, such that they do not present small hairs or sub-fibers to which the adhesive can bond.
  • the open weave fabrics in general comprise relatively few fibers. Therefore, in order to form a suitable bond, the adhesive must penetrate the sheer fabric, such that when it hardens into a mass, it encapsulates the fibers of the fabric.
  • a strip 28 of non-bonding material that is, a material which does not bond to the adhesive used, is interposed between the tabs 20a and the central portions 20b of the sheer fabric used.
  • the adhesive is then applied as indicated at 32 to the upper surfaces of the tabs, and the assembly made as previously.
  • the adhesive will normally penetrate the tabs 20a and central portions 20b, but does not bond to the non-bonding strips 28.
  • the non-bonding strips 28 can be removed.
  • Figures 7 and 8 show the shade formed of a sheer material according to the invention after removal of the non-bonding strips 28.
  • the adhesive 30 tends to penetrate the central portions 20b of the strips but has been prevented from adhering to the corresponding tabs 20a by the presence of the non-bonding material 28 as shown in Figure 6.
  • the shade is opened, as shown in Figure 8, the adhesive 30 then extends above the central portion of each strip, but does not interfere with the proper operation of the shade.
  • Figure 9 shows an alternative form of "honeycomb” or cellular shade, as described for example in US-A-4676855, which can be manufactured of adhesive-permeable sheer materials according to the method of the invention.
  • the basic member of the cell is a strip of material 40 creased to define an overall Z-shape, with tabs 40a on either side of a central section. The tabs of each strip are joined to the central portions of the preceding and succeeding strips. If the strips 40 are formed of a glue-permeable material, adhesive is applied, and the strips stacked, the tabs 40a will tend to be adhesively bonded to the strips from which they are formed; e.g., tab 40a will tend to be bonded to the same strip 40 at a point 40b.
  • strips 42 of a non-bonding material are inserted into the interior spaces of the cells before the strips are stacked, to prevent the interiors of the cells from thus being adhesively bonded closed. Strips 42 are removed when the adhesive has at least partially cured.
  • the method of the invention is similarly applicable to other honeycomb-configuration cellular shades.
  • the principal steps in the practice of the invention are simply the formation of the strips by creasing them to define the tabs and central portions of cell precursors, insertion of the non-bonding material, deposition of beads or droplets of liquid adhesive along the tabs or on the corresponding mating portions of the strips, and stacking a large number of these assemblies to form the shade precursor. After exposure of the shade precursor to suitable conditions for cure of the adhesive, the strips of non-bonding material are simply removed, yielding the completed structure.
  • the preferred material for the non-bonding strips may be a polyethylene plastic to which the adhesive does not bond.
  • a nonstick silicone coating on the strips may be desirable in connection with certain combinations of adhesives and polyethylenes or other materials for the strip. Numerous other appropriate materials will occur to those of skill in the art.
  • Various sorts of adhesives such as water activated catalyst adhesives, hot melt glues, moisture-curing hot melts and various silicones are all suitable. Adhesives applied dry and activated by heating after stacking of the strips, with or without application of pressure, may also prove useful in the future. It will be appreciated that the key is that the adhesive must penetrate the fibers of the fabric to fully encapsulate them, forming a suitable bond, and must be sufficiently viscous to remain in place during the various processing steps.
  • Removal of the non-bonding strips 28 can be feasibly accomplished simply by laborers using their fingers, but obviously more mechanized approaches may also be economically feasible in some circumstances. It has been found that certain desirable fabrics are sufficiently permeable to air that it is not satisfactory to simply blow the strips of non-bonding material out from the cells thus formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blinds (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Decoration Of Textiles (AREA)
  • Laminated Bodies (AREA)

Claims (9)

  1. Verfahren zur Herstellung eines auseinanderziehbaren und zusammenlegbaren Jalousie-Materials aus einer Anzahl übereinander angeordneter, langgestreckter, hohler Zellen, die jeweils aus einem flächigen Material gefertigt sind, wobei dieses Verfahren folgende Schritte umfaßt:
    - Bereitstellung des flächigen Materials in Streifenform;
    - Falten der Streifen entlang paralleler Linien, und zwar in einer Längsrichtung, die der Längsrichtung der zu bildenden Zellen entspricht;
    - Aufbringung flüssigen Klebstoffs an einem oder mehreren Punkten der aus dem flächigem Material bestehenden Streifen;
    - Aufeinanderlegen der vorgenannten Streifen, und zwar dergestalt, daß die miteinander zu verklebenden Teile der aus dem flächigem Material bestehenden Streifen unmittelbar miteinander in Berührung gelangen, um die Zellen zu bilden;
    - Aushärtenlassen des Klebstoffs;
    dadurch gekennzeichnet, daß
    - auf einer Stufe ein Streifen nichtklebenden Materials (28, 42) relativ zu dem gefalteten Streifen flächigen Materials angeordnet wird, damit dieses nichtklebende Material während der folgenden Schritte verhindert, daß klebstoffgetränkte Bereiche eines Streifens des flächigen Materials an anderen Bereichen desselben Streifens des flächigen Materials so anhaften, daß die Bildung einer Zelle verhindert wird, und
    - auf einer weiteren Stufe diese Streifen nichtklebenden Materials nach Aushärten des Klebers entfernt werden.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß bei dem vorgenannten Faltschritt jeder Materialstreifen in Längsrichtung so gefalzt wird, daß sich beidseits eines Mittelteils des Streifens Gewebelaschen bilden, die einen Zellenvorläufer darstellen, wobei diese Zellenvorläufer dann miteinander zu dem Jalousiematerial verklebt werden.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß diese Zellenvorläufer einen im wesentlichen U-formigen Querschnitt aufweisen.
  4. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß diese Zellenvorläufer einen im wesentlichen Z-förmigen Querschnitt aufweisen.
  5. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das flächige Material durchlässig gegenüber flüssigem Klebstoff ist.
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß es sich bei dem flächenhaften Material um ein durchscheinendes textiles Flächengebilde handelt.
  7. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß auf die vorgenannten übereinander angeordneteten Streifen ein Druck ausgeübt wird, um sicherzustellen, daß die Laschen durch den Klebstoff vollständig mit den Mittelteilen verbunden werden.
  8. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß zum Aushärten des Klebstoffs Wärme eingesetzt wird.
  9. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Zellen auseinandergezogen werden, um das Entfernen der genannten Streifen nichtklebenden Materials zu ermöglichen.
EP19900300638 1989-01-25 1990-01-22 Herstellung von durchscheinenden wabenförmigen Faltjalousien unter Verwendung von Trennstreifen Expired - Lifetime EP0380271B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30108789A 1989-01-25 1989-01-25
US301087 1989-01-25

Publications (3)

Publication Number Publication Date
EP0380271A2 EP0380271A2 (de) 1990-08-01
EP0380271A3 EP0380271A3 (de) 1992-03-18
EP0380271B1 true EP0380271B1 (de) 1994-06-08

Family

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Application Number Title Priority Date Filing Date
EP19900300638 Expired - Lifetime EP0380271B1 (de) 1989-01-25 1990-01-22 Herstellung von durchscheinenden wabenförmigen Faltjalousien unter Verwendung von Trennstreifen

Country Status (4)

Country Link
EP (1) EP0380271B1 (de)
JP (1) JP2580055B2 (de)
CA (1) CA2008465C (de)
DE (1) DE69009507T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002368286A1 (en) 2002-10-11 2004-05-04 Huang, David Cellular structure with internal limiting member and method for making the cellular structure
PL373175A1 (en) 2002-10-28 2005-08-22 Teh Yor Co.Ltd Cellular structure and a method for making a cellular structure
EP1697611B1 (de) * 2003-12-22 2012-08-08 Hunter Douglas Inc. Zurückziehbare jalousie für abdeckungen für architektonische öffnungen
CN102240151B (zh) 2010-05-10 2013-08-28 德侑股份有限公司 窗帘用双蜂巢结构及其制程
DE202011050676U1 (de) 2010-10-06 2011-09-09 Inventex Establishment Plisseejalousie
USD764836S1 (en) 2014-09-08 2016-08-30 Hunter Douglas Inc. Covering for an architectural opening having multiple columns of double cells

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440664A (en) * 1945-07-28 1948-04-27 Dow Chemical Co Making lap-welded articles from thermoplastic films
US2745463A (en) * 1953-05-28 1956-05-15 Rempel Mfg Inc Press for heat sealing sheet and like multiple part objects
CH331229A (de) * 1954-07-14 1958-07-15 Cav Ltd Maschine zur Herstellung von Papierfiltern
GB791988A (en) * 1955-11-10 1958-03-19 Mining Engineering Co Ltd Improvements relating to the manufacture of tubing of flexible material
GB1362952A (en) * 1970-07-21 1974-08-07 Rasmussen O B Conjugate fibre and method of manufacturing same
US3729363A (en) * 1971-03-05 1973-04-24 C Mollura Apparatus for edge joining panels
US4174987A (en) * 1978-04-07 1979-11-20 The Boeing Company Method of making heat exchange structure
US4450027A (en) * 1982-08-09 1984-05-22 Colson Wendell B Method and apparatus for fabricating honeycomb insulating material
US4631217A (en) * 1985-10-25 1986-12-23 Hunter Douglas Inc. Honeycomb structure with Z-folded material and method of making same

Also Published As

Publication number Publication date
DE69009507T2 (de) 1994-09-22
CA2008465A1 (en) 1990-07-25
EP0380271A2 (de) 1990-08-01
CA2008465C (en) 1994-03-01
JPH02279892A (ja) 1990-11-15
DE69009507D1 (de) 1994-07-14
JP2580055B2 (ja) 1997-02-12
EP0380271A3 (de) 1992-03-18

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