EP0421899B1 - Vorrichtung, um ein Sonnenschirmtuch unter Spannung zu halten, insbesondere für eine Veranda oder Pergola - Google Patents

Vorrichtung, um ein Sonnenschirmtuch unter Spannung zu halten, insbesondere für eine Veranda oder Pergola Download PDF

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Publication number
EP0421899B1
EP0421899B1 EP90420429A EP90420429A EP0421899B1 EP 0421899 B1 EP0421899 B1 EP 0421899B1 EP 90420429 A EP90420429 A EP 90420429A EP 90420429 A EP90420429 A EP 90420429A EP 0421899 B1 EP0421899 B1 EP 0421899B1
Authority
EP
European Patent Office
Prior art keywords
fabric
arms
under tension
tension
sun protection
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
EP90420429A
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English (en)
French (fr)
Other versions
EP0421899A1 (de
Inventor
René Lauzier
Daniel Mollard
Jean François De Belval
Jean Paul Clement
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.)
LAUZFLEX SA
Original Assignee
LAUZFLEX SA
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 LAUZFLEX SA filed Critical LAUZFLEX SA
Priority to AT90420429T priority Critical patent/ATE84101T1/de
Publication of EP0421899A1 publication Critical patent/EP0421899A1/de
Application granted granted Critical
Publication of EP0421899B1 publication Critical patent/EP0421899B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0607—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with guiding-sections for supporting the movable end of the blind
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0611—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind
    • E04F10/0618—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind whereby the pivot axis of the articulation is perpendicular to the roller
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0644—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind
    • E04F10/0651—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind acting on the arms
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0603—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with telescopic arms

Definitions

  • the present invention relates to a device for maintaining the tension of a sun protection fabric, of the kind which are deployed horizontally or with a slight inclination above 'a structure such as veranda, pergola, greenhouse or other construction. similar, having a framework on which a sun protection system can be mounted.
  • This invention applies, more particularly, to a sun protection fabric, one end of which is linked to a rotating winding member, preferably motorized, and the opposite end of which is linked to a movable load bar, comprising means in translational guidance.
  • Such a sun protection system thus has at least one fabric that can be deployed or rolled up, the load bar moving away from the winding member as the canvas is deployed, the useful part of which extends between the winding member and this load bar. Because of their large size and their horizontal or slightly inclined position, such fabrics offer a strong wind resistance, and must therefore be strongly stretched.
  • tensioning devices are currently used, which are all of a fairly similar principle: the fabric is generally stretched by means of a tension or torsion spring, and sometimes by a geared motor, which exerts an action on the load bar.
  • the force of the spring or the gearmotor is transmitted to the load bar by means of at least one cable, a textile strap or even a metal strip, so as to pull the load bar direction of its distance from the winding member.
  • document DE-U-8705516 proposes spring arms, having an articulated, but not extensible, structure which are each mounted between a fixed point close to the fabric winding member and a mobile point linked to the load bar, so that these arms, urged by their springs in the direction of their elongation, exert on the load bar a push tending to move it away from the winding member of the fabric. Furthermore, this document does not specify what is the overall configuration of the arms.
  • the invention aims to improve this type of tension maintenance device, in particular by providing a device providing a substantially constant tension force, while being particularly compact.
  • the device according to the invention for maintaining the tension of a sun protection fabric, in particular for veranda or pergola, comprises at least two extendable arms with spring effect with an overall configuration at "X", the two arms crossing and being articulated with one another in their central parts, and being each articulated, by one end, at a fixed point close to the winding member of the fabric and, by the other end, at a mobile point linked to the load bar.
  • Each extendable arm here preferably comprises a first telescopic tension element articulated at the fixed point and connected, by an intermediate element articulated on the corresponding element of the other extendable arm, to a second telescopic tension element, articulated at the point mobile linked to the load bar.
  • the extendable arms are articulated at fixed points which are points on the frame supporting the fabric winding member.
  • This set is compact and self-supporting, and does not require any special support or guide; it is simply mounted in an articulated manner, for example by means of ball joints, between a fixed chassis element on the one hand and the load bar on the other hand, and it remains entirely independent of the means of guiding the load bar and the structure of the veranda, which can be produced for example according to French patent application N ° 89,01844 filed on February 13, 1989 in the name of SA FRANCIAFLEX.
  • Two or more pairs of extensible arms in "X" can be associated, in the case of large width fabrics.
  • the or each telescopic tensioning element of an extendable arm comprises a central rod linked to a first end-piece provided at one end of the element, a tube linked to a second end-piece located at the opposite end of the element, and a tubular cover surrounding the central rod, linked to the first end piece and sliding on the tube linked to the second end piece, a helical spring being mounted, with its ends pressed against the two end pieces, around the central rod and under the tube cited above.
  • the central metal rod is coated on the outside with a protective plastic sheath, while the tube, also metallic, has a protective internal coating in plastic; thus, the coils of the spring come into contact with plastic parts, which considerably reduce friction and noise.
  • the tension maintenance device is applied to a sun protection fabric 1 deploying horizontally, or with a slight inclination either upwards or downwards, above a structure such as veranda, the framework of which is indicated in 2.
  • the fabric 1 has a rear edge linked to a winding tube 3, mounted rotating around a horizontal axis 4 and coupled to an electric drive motor, not shown , which can be housed inside the tube 3.
  • the front edge of the fabric 1 is moored to a movable load bar 5, which is guided by means of pads 6 along guide rails 7 fixed to the frame of the veranda 2, these rails can be elements such as rafters belonging to the frame itself.
  • Each telescopic tension element 12,15,17,20 contains a spring which tends to elongate this element, therefore also to lengthen the corresponding extensible arm 8 or 9, the detailed configuration of the tension elements being described below.
  • FIG. 3 shows the detail of a spring tension element, which may be one of the elements 12, 15, 17, 20 used in the construction of the extensible arms 8 and 9.
  • the telescopic element in question comprises, at one end, a first end piece 31 to which is linked a central metal rod 32, for example of steel, extending along the axis 33 of the element.
  • this element comprises a second end piece 34, to which is linked a metal tube 35, for example made of aluminum, which coaxially surrounds the rod 32 over a certain length, varying according to the degree of extension of the telescopic element.
  • a helical spring 36 is mounted and compressed in this element, the spring 36 being pressed by its ends against the two end pieces 31 and 34.
  • This spring 36 surrounds the central rod 32 and is, itself, surrounded by the tube 35.
  • a sheath protective plastic 37 covering the rod 32, and by a protective inner coating 38 plastic of the tube 35.
  • a tubular cover 39 also made of plastic, is connected to the first end piece 31 and slides on the tube 35 linked to the second end piece 34.
  • the two end pieces 31 and 34 may be provided with threads, respectively 40 and 41, for mounting the articulation parts such as ball joints, or even for fixing the central parts 14 and 19.
  • the extendable arms ensure a permanent thrust on the load bar 5, tending to move this bar away from the winding tube 3 and therefore ensuring the tensioning of the fabric 1. These arms automatically "follow" the movements of the load bar, changing their length.
  • Figure 1 shows the arms deployed and Figure 2 shows these arms folded.
  • the tension holding device makes it possible to obtain a substantially constant tension of the fabric 1, in particular for positions of the load bar 5 comprised between a third and its entire stroke (at from the folded position).
  • the spring effect can be produced by at least one captive gas cylinder, constituting each arm or integrated into this arm; this spring effect can also result from at least one element subjected to a gas or liquid pressure supplied by an external source, such as a pump, providing a driving force for unwinding the fabric, the winding member of the canvas then made resistant to this driving force thanks for example to a torsion spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Building Awnings And Sunshades (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Tents Or Canopies (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Claims (8)

  1. Vorrichtung um ein Sonnenschutztuch (1) unter Spannung zu halten, welches horizontal oder mit einer leichten Neigung oberhalb einer eine Tragekonstruktion (2) aufweisenden Struktur, wie zum Beispiel einer Veranda, einer Pergola, eines Gewächshauses oder dergleichen, ausgebreitet ist,
    wobei das Sonnenschutztuch (1) ein mit einem bevorzugterweise motorgetriebenen, sich drehenden Wickelelement (3) verbundenes Ende aufweist und sein gegenüberliegendes Ende mit einer Verschiebeführungsmittel (6,7) umfassenden beweglichen Spannbelastungsstange verbunden ist,
    wobei die Vorrichtung wenigstens zwei Federkraftarme (8,9) umfaßt, von denen jeder derart schwenkbar zwischen einem festen Punkt (13,18) nahe dem Wickelelement (3) des Tuchs (1) und einem beweglichen, mit der Spannbelastungsstange (5) verbundenen Punkt (16,21) angebracht ist, daß diese durch ihre Federkraftelemente (36) im Verlängerungssinn vorgespannten Arme auf die Spannbelastungsstange (5) eine Schubkraft ausüben, welche versucht, die Spannbelastungsstange von dem Wickelelement (3) des Tuchs (1) zu entfernen, dadurch gekennzeichnet, daß sie wenigstens zwei längbare, zusammen eine "X"-förmige Anordnung aufweisende Federkraftarme (8,9) umfaßt, wobei sich die zwei Arme (8,9) kreuzen und (bei 10) im Bereich ihrer zentralen Abschnitte (14,19) schwenkbar verbunden sind, und wobei jeder mit einem Ende an einem festen Punkt (13,18) nahe dem Wickelelement (3) des Tuchs (1) angelenkt ist und mit dem anderen Ende an einem beweglichen, mit der Spannbelastungsstange (5) verbundenen Punkt (16,21).
  2. Vorrichtung, um ein Sonnenschutztuch unter Spannung zu halten, nach Anspruch 1, dadurch gekennzeichnet, daß die längbaren Arme (8,9) an festen Stellen (13, 18) angelenkt sind, welche zum das Wickelelement (3) des Tuchs (1) stützenden Gestell (11) gehören.
  3. Vorrichtung, um ein Sonnenschutztuch unter Spannung zu halten, nach dem Anspruch 1 oder 2, dadurch gekennzeichnet, daß jeder längbare Arm (8,9) ein erstes Teleskopspannungselement umfaßt, welches an der festen Stelle (13,18) angelenkt ist und über ein Zwischenelement (14,19), das (bei 10) mit dem entsprechenden Element des anderen längbaren Arms schwenkbar verbunden ist, mit einem an der beweglichen, mit der Spannbelastungsstange (5) verbundenen Stelle (16,21) angelenkten, zweiten Teleskopspannungselement (15,20) verbunden ist.
  4. Vorrichtung, um ein Sonnenschutztuch unter Spannung zu halten, nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sie zwei oder mehrere Paare von längbaren, die Form eines "X" bildenden Armen (8,9) umfaßt.
  5. Vorrichtung, um ein Sonnenschutztuch unter Spannung zu halten, nach Anspruch 3, dadurch gekennzeichnet, daß das oder jedes Teleskopspannungselement (12,15,17,20) eines längbaren Arms (8,9) einen zentralen Schaft (32) aufweist, welcher mit einem ersten an einem Ende des Elements vorgesehenem Ansatzstück (31) verbunden ist, ein mit einem zweiten am gegenüberliegenden Ende des Elements gelegenen Ansatzstück (34) verbundenes Rohr (35) und eine rohrförmige, den zentralen Schaft (32) umgebende Verkleidung (39), welche mit dem ersten Ansatzstück (31) verbunden ist und auf das mit dem zweiten Ansatzstück (34) verbundene Rohr (35) aufschiebbar ist, und wobei eine spiralförmige Feder (36) mit ihren beiden Enden gegen die zwei Ansatzstücke (31,34) abgestützt um den zentralen Schaft (32) herum und in dem vorher angeführten Rohr (35) angebracht ist.
  6. Vorrichtung, um ein Sonnenschutztuch unter Spannung zu halten, nach Anspruch 5, dadurch gekennzeichnet, daß der zentrale Schaft (32) metallen ist und außen durch einen Schutzüberzug (37) aus Plastikmaterial bedeckt ist, während das ebenfalls metallene Rohr (35) eine innere Plastikauskleidung (38) umfaßt, derart, daß die Windungen der Feder (36) mit den Plastikabschnitten in Kontakt kommen.
  7. Vorrichtung, um ein Sonnenschutztuch unter Spannung zu halten, nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Federkraft der längbaren Arme durch wenigstens einen Zylinder mit eingeschlossenem Gas erzeugt wird, welcher jeden Arm bildet oder in diesen Arm integriert ist.
  8. Vorrichtung, um ein Sonnenschutztuch unter Spannung zu halten, nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Federkraft der längbaren Arme durch wenigstens ein einem von einer äußeren Quelle gelieferten Gas- oder Flüssigkeitsdruck ausgesetztes Element erzeugt wird, wobei eine Antriebskraft zum Abwickeln des Tuches (1) erzeugt wird, und das Wickelelement (3) des Tuchs gegen diese Antriebskraft zum Beispiel durch eine Torsionsfeder widerstandsfähig gemacht ist.
EP90420429A 1989-10-04 1990-10-03 Vorrichtung, um ein Sonnenschirmtuch unter Spannung zu halten, insbesondere für eine Veranda oder Pergola Expired - Lifetime EP0421899B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90420429T ATE84101T1 (de) 1989-10-04 1990-10-03 Vorrichtung, um ein sonnenschirmtuch unter spannung zu halten, insbesondere fuer eine veranda oder pergola.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8913305A FR2652603A1 (fr) 1989-10-04 1989-10-04 Dispositif pour le maintien en tension d'une toile de protection solaire, notamment pour veranda ou pergola.
FR8913305 1989-10-04

Publications (2)

Publication Number Publication Date
EP0421899A1 EP0421899A1 (de) 1991-04-10
EP0421899B1 true EP0421899B1 (de) 1992-12-30

Family

ID=9386302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420429A Expired - Lifetime EP0421899B1 (de) 1989-10-04 1990-10-03 Vorrichtung, um ein Sonnenschirmtuch unter Spannung zu halten, insbesondere für eine Veranda oder Pergola

Country Status (7)

Country Link
EP (1) EP0421899B1 (de)
AT (1) ATE84101T1 (de)
DE (1) DE69000703T2 (de)
DK (1) DK0421899T3 (de)
ES (1) ES2037540T3 (de)
FR (1) FR2652603A1 (de)
GR (1) GR3007078T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2889226A1 (fr) * 2005-07-30 2007-02-02 Aero Stores Sarl Pergola avec store d'assombrissement
US8308217B2 (en) * 2008-09-08 2012-11-13 Rameshbhai Kalabhai Patel Automobile sun visor with electromechanical sun shade and methods of use thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1413596A (en) * 1920-04-27 1922-04-25 William C Langdon Power-operated awning
GB322046A (en) * 1928-10-11 1929-11-28 Arthur Claud Page Improvements in and connected with sun blinds or awnings
FR692320A (fr) * 1930-03-20 1930-11-04 Ossature à jambes de force pour tentes déroulables
FR798517A (fr) * 1935-02-19 1936-05-19 Etaix & Cie Monture de store banne à bras extensibles
FR2429317A1 (fr) * 1978-06-20 1980-01-18 Farnier & Penin Store roulant a guidage extensible
FR2588307B1 (fr) * 1985-10-04 1987-12-31 Farnier & Penin Dispositif d'ecran motorise
DE8705516U1 (de) * 1987-04-14 1987-07-09 Moshacke, Werner, 8643 Küps Markisenzwangsführung

Also Published As

Publication number Publication date
ATE84101T1 (de) 1993-01-15
GR3007078T3 (de) 1993-07-30
DE69000703T2 (de) 1993-05-13
FR2652603A1 (fr) 1991-04-05
FR2652603B1 (de) 1995-02-24
EP0421899A1 (de) 1991-04-10
DE69000703D1 (de) 1993-02-11
DK0421899T3 (da) 1993-04-13
ES2037540T3 (es) 1993-06-16

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