EP2904182B1 - Méthode de fabrication d'un rail de guidage pour un écran - Google Patents

Méthode de fabrication d'un rail de guidage pour un écran Download PDF

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Publication number
EP2904182B1
EP2904182B1 EP14809952.6A EP14809952A EP2904182B1 EP 2904182 B1 EP2904182 B1 EP 2904182B1 EP 14809952 A EP14809952 A EP 14809952A EP 2904182 B1 EP2904182 B1 EP 2904182B1
Authority
EP
European Patent Office
Prior art keywords
elongate body
channel
width
roller
zip
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.)
Not-in-force
Application number
EP14809952.6A
Other languages
German (de)
English (en)
Other versions
EP2904182A1 (fr
Inventor
Martin Dibben
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.)
Ideas by Design Ltd
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Ideas by Design Ltd
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Filing date
Publication date
Application filed by Ideas by Design Ltd filed Critical Ideas by Design Ltd
Publication of EP2904182A1 publication Critical patent/EP2904182A1/fr
Application granted granted Critical
Publication of EP2904182B1 publication Critical patent/EP2904182B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B9/581—Means to prevent or induce disengagement of shutter from side rails
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes

Definitions

  • the present invention relates generally to guided screen systems of the kind employing a screen with a zip-like retention device on each lateral side thereof, and particularly but not exclusively to a method of manufacturing a rail for guiding one lateral side of a screen with a zip-like retention device.
  • Each guided screen system comprises a roller blind and a pair of guide rails disposed on either side of an aperture to be screened.
  • the roller blind comprises a roller with a blind fabric wound therearound.
  • the blind fabric has flexible strips on its lateral sides which are trapped within, but free to slide along, a specially shaped groove or keyway in each of the rails. With such a configuration, the blind fabric is held laterally between the rails as it is deployed from the roller.
  • US 4638844 and GB 2235005 disclose early forms of such a screen system, with different brackets for loosely mounting the guide rail; and WO2009/098433 discloses a current form of such a screen system.
  • Each flexible strip typically is one half of a zipper, but could be manufactured by moulding a soft or semi-rigid high polymer such as hot-melt synthetic resin or rubber. The important point is that each flexible strip has or forms an enlarged head region (at least in use) which slides along the keyway, but resists being pulled transversely out of the keyway.
  • a flexible strip is hereinafter referred to as a zip-like retention device or simply "half zipper”
  • a roller blind with such flexible strips for engaging corresponding rails is hereinafter referred to as a zip-like guided screen, regardless of whether one half of a zipper is actually used.
  • the blind fabric and half zippers when winding the blind fabric onto its roller, there is a tendency for the half zippers to spiral with an axial spread, rather than in a single plane, which conflicts with the aim of retaining the blind fabric between the rails.
  • the blind fabric and half zipper spirals to one side, the blind fabric is tilted to that one side which may cause the weight bar on the bottom of the blind fabric (hem bar) to tilt meaning it is no longer level. If the spiral abuts an adjacent surface, the blind fabric may then start to spiral in the opposite direction, so tilting the blind fabric and hem bar in a counter direction. This cycle repeats until the blind is fully raised.
  • the blinds of such conventional zip-like guided screens also suffer from wrinkling at the edge, where the half zipper is welded/attached to the blind fabric.
  • This wrinkling is caused by the difference in blind build-up on the roller between the single thickness of the blind fabric (between the half zippers) and the greater thickness of the half zippers at the edges.
  • the differences in thickness cause stretching of the blind fabric at the edges which is seen as wrinkling when the blind is deployed.
  • there is a difference in blind build-up diameter between the blind fabric in the middle and the half zippers at the edge causing stress in the blind fabric when wound on the roller between the tight roll at the edges (because of the thickness of the half zippers) and the loose roll in the middle (between the between the half zippers).
  • Such stress may cause creasing in the blind fabric on the roller, particularly when relatively thin blind fabrics are used and with larger blinds.
  • relatively fine half zippers i.e. half zippers with teeth less than 1.5mm thick
  • relatively fine half zippers i.e. half zippers with teeth less than 1.5mm thick
  • the blind fabric to pull all too easily its relatively fine half zippers away from the rails. This tendency remains even when the keyway was lined with specially shaped inserts.
  • the relatively fine half zippers are considered to provide insufficient anchorage in their respective rail keyways.
  • EP2335956 discloses a screen with zip-like guiding and holding elements on each lateral side thereof for movement along respective slots formed in a pair of opposed guiding rails.
  • Each guiding rail comprises an outer part of aluminium and an inner part of extruded plastics material.
  • the outer part has a substantially "U'-shaped cross-section, and the inner part has a substantially "C"-shaped cross-section.
  • the inner part is resiliently compressed and retained in the outer part to form a keyway with a narrow slot for engaging the zip-like guiding and holding elements.
  • the present applicant has sought to provide an improved method of manufacturing the rail in order to reduce the tendency for a screen with a zip-like retention device to pull out from its keyway.
  • a method of manufacturing a guide rail for a zip-like guided screen comprising: providing an elongate body including a pair of spaced-apart walls defining a channel therebetween, each wall having a flange projecting laterally into the channel to define a neck region of the channel; and plastically deforming the elongate body to reduce the neck region of the channel from a first width to a second width such that the channel defines a keyway for receiving a zip-like retention device, the keyway having a profile which is maintained on completion of the plastic deformation and configured to allow the zip-like retention device to slide in a first direction along the channel, and to resist movement in a second direction perpendicular to the first direction which would separate the zip-like retention device from the elongate body.
  • the first width may be at least 1.0mm, perhaps even about 2.0mm.
  • the second width may be less than 1.0mm, and may even be 0.8mm or less, such as 0.6mm. In this way, it is possible to manufacture commercially guide rails for use with relatively coarse half zippers and even relatively fine half zippers.
  • the elongate body may have a base portion supporting the pair of spaced-apart walls, the base portion having a line of weakness which defines a hinge region when deforming the elongate body to reduce the neck region of the channel from the first width to the second width.
  • the line of weakness may lie in a plane midway between the pair of spaced-apart walls. In this way, one part of the elongate body on one side of the line of weakness may rotate relative to another part of the elongate body on an opposite side of the line of weakness when deforming the elongate body. For example, one part may rotate relative to the other part through an angle of at least 10 degrees, perhaps even at least 15 degrees, for example about 20 degrees.
  • the amount of plastic deformation between successive elongate bodies may be varied so as to manufacture bodies having differing second widths.
  • the elongate body may be formed from a metal, such as aluminium.
  • the step of providing an elongate body may comprise the step of extruding the elongate body.
  • deforming the elongate body may comprise passing the elongate body through a roller jig, the roller jig having roller means to clamp a first part of the elongate body and at least one press roller to urge a second part of the elongate body against the first part when reducing the neck region of the channel from the first width to the second width.
  • the roller jig may further comprise a stop member for limiting position of the at least one press roller to control width reduction of the neck region.
  • the resulting guide rail may be used in a screen system, such as those disclosed in US 4638844 , GB 2235005 and WO2009/098433 (the contents of which are herein incorporated by reference), where the guide rail is resiliently mounted in a support frame to help maintain tension in the blind fabric during deployment.
  • the present invention also extends to a method of fabricating a screen system, comprising: resiliently mounting in a support frame a guide rail manufactured in accordance with the first aspect of the present invention; and providing a roller blind comprising a roller with a blind fabric wound therearound, the blind fabric having a zip-like retention device on one lateral side thereof which is configured to slide along the channel in the guide rail in an axial direction and resist being pulled out of the channel in a direction transverse to the axial direction as the blind fabric is deployed from the roller.
  • Resiliently mounting the guide rail in the support frame helps to maintain tension in the blind fabric during deployment when the support frame is secured to a surface such as a wall surrounding a window or door.
  • Figure 1 shows an elongate body or rail 10 for use in the manufacture of a guide rail for a zip-like guided screen (not shown).
  • the elongate body 10 includes a pair of spaced-apart walls 12,14 upstanding from a base portion 16.
  • the pair of spaced-apart walls 12,14 (which are inclined away from each other, with the angular separation being about 20°) define therebetween an open channel 18.
  • Each wall 12,14 has a flange 20 projecting laterally into the channel 18 to define a neck region 22 which has an initial minimum width W 1 of about 2.0mm.
  • the base portion 16 includes a groove 24 extending in a notional plane midway between the pair of spaced-apart side walls 12,14.
  • the groove 24 provides a line of weakness in the base portion 16, defining a hinge region 26 adjacent the groove 24 in the base portion 16.
  • Such an elongate body 10 is readily formed in aluminium using a conventional extrusion process.
  • Figures 3A, 3B, 4A and 4B show the elongate body 10 after it has been plastically deformed to narrow the width of the neck region 22 from the initial width W 1 to a reduced width W 2 .
  • one part 30 of the elongate body 10 on one side of the hinge region 26 rotates permanently through an angle ( ⁇ ), which may for example be about 20°, relative to another part 32 of the elongate body 10 on the opposite side of the hinge region 26.
  • the walls 12,14 define a keyway 40 for receiving a zip-like retention device, the keyway having a profile configured to allow the zip-like retention device to slide in a first direction Y along the channel 18, and to resist movement in a second direction Z perpendicular to the first direction which would separate the zip-like retention device from the elongate body 10.
  • the angle ( ⁇ ) that the one part 30 is rotated relative to the other part 32 is about 20°
  • the reduced width W 2 is about 0.6mm, which means the resulting keyway 40 is suitable for use with relatively fine half zippers (i.e. half zippers with teeth less than 1mm thick).
  • rails having differing neck widths can be produced from the same extrusion 10.
  • the angle ( ⁇ ) that the one part 30 is rotated relative to the other part 32 is about 18°
  • the reduced width W 2 is about 0.8mm, which means the resulting keyway 40 is suitable for use with relatively coarse half zippers (i.e. half zippers with teeth at least 1mm thick.
  • FIG. 5 illustrates schematically a roller jig 50 for width reduction of the neck region 22 of the channel 18.
  • the roller jig 50 comprises two sets of rollers 52,54 which are spaced apart and define a passageway therebetween. At least one set of the rollers 52,54 is actively rotated (e.g. by drive spindle 55) to drive the elongate body 10 through the roller jig 50, and at least one set of the rollers 52,54 is resiliently biased towards the other set to exert a clamping force therebetween.
  • the rollers 52,54 engage and support a portion of the elongate body 10 including the wall 12.
  • a set of press rollers 56 are urged against another portion of the elongate body including the wall 14 to deform the elongate body 10 in order to reduce the width of the neck region 22 of the channel 18.
  • the set of press rollers 56 are mounted on an arm 58 which is pivoted at one end which is downstream of the sets of rollers 52,54.
  • An adjustable stop 60 is provided to limit the inclination of arm 58 relative to the sets of rollers 52,54, and hence control the extent of deformation in the elongate member 10. By changing the position of the adjustable stop 60, the roller jig 50 can be controlled so that the width W 2 of the neck region 22 is reduced to the required dimension.
  • the roller jig 50 is provided with interchangeable rollers 52, 54 to accommodate elongate bodies with different cross-sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Support Devices For Sliding Doors (AREA)

Claims (11)

  1. Procédé de fabrication d'un rail de guidage d'un écran à guidage de type glissière, consistant à : concevoir un corps allongé (10) comprenant deux parois espacées (12, 14)
    définir un canal (18) entre ces dernières, chaque paroi (12, 14) comportant un rebord (20) faisant saillie latéralement dans le canal (18) pour définir une région de col (22) du canal ; caractérisée par :
    une déformation plastique du corps allongé (10) de façon à réduire la région de col (22) du canal (18) d'une première largeur à une seconde largeur telle que le canal définisse une rainure (40) destinée à recevoir un dispositif de retenue de type glissière, la rainure (40) ayant un profil qui est maintenu lors de la déformation plastique et étant conçue pour permettre au dispositif de retenue de type glissière de glisser dans une première direction le long du canal (18), et pour résister à un déplacement dans une seconde direction perpendiculaire à la première direction qui pourrait séparer le dispositif de retenue de type glissière du corps allongé (10).
  2. Procédé selon la revendication 1, dans lequel la première largeur est d'au moins 1,0 mm.
  3. Procédé selon la revendication 1 ou la revendication 2, dans lequel la seconde largeur est inférieure à 1,0 mm.
  4. Procédé selon l'une quelconque des revendications précédentes, dans lequel le corps allongé (10) comporte une partie base (16) supportant les deux parois espacées (12, 14), la partie base (16) présentant une ligne de moindre résistance (24) qui définit une région d'articulation (26) lors de la déformation du corps allongé (10) de façon à réduire la région de col (22) du canal (18) de la première largeur à la seconde largeur.
  5. Procédé selon la revendication 4, dans lequel une partie du corps allongé (10) située d'un côté de la ligne de moindre résistance (24) pivote sur un angle d'au moins 10 degrés par rapport à une autre partie du corps allongé (10) située d'un côté opposé de la ligne de moindre résistance (24) lors de la déformation du corps allongé (10).
  6. Procédé selon l'une quelconque des revendications précédentes, et comprenant l'étape consistant à concevoir des corps allongés successifs et à faire varier la quantité de déformation plastique entre les corps successifs de façon à fabriquer des corps ayant des secondes largeurs qui diffèrent.
  7. Procédé selon l'une quelconque des revendications précédentes, dans lequel le corps allongé (10) est formé d'un métal, tel que d'aluminium.
  8. Procédé selon l'une quelconque des revendications précédentes, dans lequel l'étape consistant à concevoir un corps allongé (10) comprend l'étape consistant à extruder le corps allongé.
  9. Procédé selon l'une quelconque des revendications précédentes, dans lequel la déformation du corps allongé consiste à faire passer le corps allongé (10) dans un gabarit à rouleaux (50), le gabarit à rouleaux comportant des moyens formant rouleaux (52, 54) destinés à brider une première partie du corps allongé et au moins un rouleau presseur (56) destiné à pousser une seconde partie du corps allongé (10) contre la première partie lors de la réduction de la région de col (22) du canal (18) de la première largeur à la seconde largeur.
  10. Procédé selon la revendication 9, dans lequel le gabarit à rouleaux (50) comprend en outre un élément de butée (60) destiné à limiter la position de l'au moins un rouleau presseur (56) de façon à maitriser la réduction de largeur de la région de col.
  11. Procédé de fabrication d'un système d'écran consistant à :
    effectuer un montage élastique, dans un cadre de support, d'un rail de guidage fabriqué selon l'une quelconque des revendications 1 à 10 ; et
    utiliser un store à rouleau comprenant un rouleau autour duquel est enroulée une toile, la toile comportant un dispositif de retenue de type glissière sur son premier côté latéral qui est conçu pour glisser le long du canal du rail de guidage dans une direction axiale et pour résister à un arrachement du canal dans une direction transversale à la direction axiale lors du déploiement de la toile à partir du rouleau.
EP14809952.6A 2013-11-21 2014-11-05 Méthode de fabrication d'un rail de guidage pour un écran Not-in-force EP2904182B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1320553.9A GB2520505A (en) 2013-11-21 2013-11-21 Rail for guided screen system
PCT/GB2014/053292 WO2015075422A1 (fr) 2013-11-21 2014-11-05 Méthode de fabrication d'un rail de guidage pour un écran

Publications (2)

Publication Number Publication Date
EP2904182A1 EP2904182A1 (fr) 2015-08-12
EP2904182B1 true EP2904182B1 (fr) 2016-09-28

Family

ID=49917977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14809952.6A Not-in-force EP2904182B1 (fr) 2013-11-21 2014-11-05 Méthode de fabrication d'un rail de guidage pour un écran

Country Status (7)

Country Link
US (1) US20160023258A1 (fr)
EP (1) EP2904182B1 (fr)
JP (1) JP2016537541A (fr)
AU (1) AU2014324170A1 (fr)
ES (1) ES2604660T3 (fr)
GB (1) GB2520505A (fr)
WO (1) WO2015075422A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3168243A1 (fr) * 2020-02-20 2021-08-26 Jean-Patrick LEGER Revetement de socle
CA3171632A1 (fr) * 2020-03-05 2021-09-10 Jean-Patrick LEGER Garniture de pivot central
EP4035655A1 (fr) 2021-02-01 2022-08-03 Oxford University Innovation Limited Articules immunomodulatrices
EP4036580A1 (fr) 2021-02-01 2022-08-03 Oxford University Innovation Limited Agent de cavitation chargé de médicaments
EP4036581A1 (fr) 2021-02-01 2022-08-03 Oxford University Innovation Limited Agent de cavitation
EP4035673A1 (fr) 2021-02-01 2022-08-03 Oxford University Innovation Limited Vaccin transdermique
CN114290011B (zh) * 2021-12-31 2024-04-09 江苏金荣森制冷科技有限公司 成型装置

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US4458739A (en) * 1980-01-08 1984-07-10 Murray John J Insulative roll-up shade system
US4428218A (en) * 1981-11-24 1984-01-31 Larocca Joseph M Method of manufacture and assembly of extruded aluminum salt for roller shutter
JPS61263733A (ja) * 1985-05-17 1986-11-21 Sanwa Shutter Corp シヤツタ−におけるガイドレ−ルの製造方法
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US6038825A (en) * 1996-02-21 2000-03-21 The Lockformer Company Insulated glass window spacer and method for making window spacer
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GB0802263D0 (en) * 2008-02-07 2008-03-12 Dibben Martin Zip screen system
GB2466780A (en) * 2009-01-03 2010-07-07 Anthony William Dee Mechanism for sealing edges of a roller blind
FR2953768B1 (fr) * 2009-12-15 2012-11-23 Acs France Sas Dispositif d'occultation, vehicule et procede de fabrication correspondants.
CN202325184U (zh) * 2011-11-18 2012-07-11 宜智达节能科技（苏州）有限公司 用在户外卷帘中的防风轨道

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Also Published As

Publication number Publication date
EP2904182A1 (fr) 2015-08-12
GB201320553D0 (en) 2014-01-08
AU2014324170A1 (en) 2015-06-04
WO2015075422A1 (fr) 2015-05-28
ES2604660T3 (es) 2017-03-08
JP2016537541A (ja) 2016-12-01
GB2520505A (en) 2015-05-27
US20160023258A1 (en) 2016-01-28

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