EP4033047A1 - Installation de protection solaire doté d'un système de tirage - Google Patents

Installation de protection solaire doté d'un système de tirage Download PDF

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Publication number
EP4033047A1
EP4033047A1 EP22152729.4A EP22152729A EP4033047A1 EP 4033047 A1 EP4033047 A1 EP 4033047A1 EP 22152729 A EP22152729 A EP 22152729A EP 4033047 A1 EP4033047 A1 EP 4033047A1
Authority
EP
European Patent Office
Prior art keywords
winding
curtain
sun protection
protection system
diameter
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.)
Pending
Application number
EP22152729.4A
Other languages
German (de)
English (en)
Inventor
Lena Schäfer
Mechthild Sauer
Martin Masuch
Jochen Ebert
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.)
Warema Renkhoff Sed
Original Assignee
Warema Renkhoff Sed
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 Warema Renkhoff Sed filed Critical Warema Renkhoff Sed
Publication of EP4033047A1 publication Critical patent/EP4033047A1/fr
Pending 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
    • E04F10/0644—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
    • E04F10/0655—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 movable end, e.g. front bar
    • 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
    • E04F10/0648—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 roller tube
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • E04H15/58—Closures; Awnings; Sunshades

Definitions

  • the invention relates to a sun protection system with a winding shaft which is coupled to a drive and on which one or two curtain parts of a sun protection curtain can be wound up, with one or two pulling elements being guided from the free ends of the curtain parts to at least one winding roller , which are coupled to the winding roller in a torsionally rigid manner or arranged in a torsionally rigid manner on the winding shaft in such a way that the at least one pulling element is wound up when the at least one curtain part is extended, with elastic length compensation of the at least one pulling element also being provided with a tensioning device, by means of which in the retracted end position of the at least one curtain part, an increased clamping force can be built up on the pulling element.
  • Such sun protection systems which are often designed as so-called awnings with freely spanned curtain parts, but can also be designed as pergola awnings or other types of awnings are from the EP 2 765 254 B1 and the EP 0 865 557 B1 known. These systems offer the advantage that the winding shaft also forms the bearing shaft for the at least one winding roll.
  • a solution with a winding roller stored separately from the winding shaft is known from EP 1 914 365 B1 known.
  • the object of the present invention is to improve a sun protection system in such a way that the maximum curtain area is available and low driving forces are required.
  • the object is achieved by an awning of the type mentioned at the outset, in which the at least one winding roll has a winding diameter which, in an intermediate position of the at least one curtain part between the retracted and the extended end position, corresponds to the diameter of the fabric roll on the winding shaft in this intermediate position and which in a region of the travel path adjoining this position up to the extended end position of the at least one hanging part is greater than the respective cloth ball diameter of the at least one hanging part on the winding shaft.
  • the solution according to the invention offers the advantage that in relation to the omitted Cloth length of the at least one curtain part when approaching the end position, a greater length of the tension element is wound up on the at least one winding roll, so that the tension element is effectively shortened, which is used to increase the tension in the tensioning device.
  • the effective winding diameter of the winding shaft means the diameter of the roll of cloth present in a specific extended state of the at least one curtain part of the cloth layers wound up on the winding shaft in this state, with the effective winding diameter of the curtain part on the winding shaft being correspondingly larger than the diameter when the at least one curtain part is completely wound up the winding roll.
  • the tension system can be designed in such a way that the lowest tensioning force is not reached in the retracted end position, but in an intermediate position in which the winding roll diameter corresponds to the effective winding diameter of the partially wound up cloth bale.
  • an increased tightening of the pulling element is also achieved in the retracted end position, which avoids unsightly sagging.
  • the intermediate position does not have to be in the middle between the end positions, but can be designed as required.
  • the curtain weight plays a role in that it always exerts a certain basic tension on the tension member as long as it is fixed at its ends. However, its own weight is not sufficient to generate sufficient tension for the opened sun protection curtain. However, it may be sufficient to maintain some low tension in the intermediate position, which is beneficial for proper winding and unwinding.
  • the contribution of the weight is reduced, since the weight of the curtain is then absorbed by the winding shaft bearings and only the tension element itself maintains a certain residual tension, so that it is advantageous that the tensioning force built up by the tensioning device is present in this curtain position.
  • the winding shaft is preferably seated coaxially on the winding shaft, but can also be arranged on a separate shaft which is coupled to the winding shaft via a gear.
  • the pulling element is preferably designed as a pulling cable over a substantial part of its length or completely, but other flexible pulling elements can also be used.
  • the traction system can easily be coordinated in such a way that the desired tension is also reached when the maximum extension length is reached, so that manual operation of the drive provides the user with good orientation and the user does not end the extension process prematurely.
  • This can be achieved by an electric drive with a simple limit switch or a manual hand crank as the drive, i.e. there is real one-point operation and no multiple sequences in which adjustment and tensioning of the systems must be carried out by separate devices.
  • a first possibility of integrating a tensioning device into the traction system is that the length of the traction element is compensated by an elastic design of the at least one traction element itself and/or by an elastic element in the at least one traction element. Both variants therefore provide that an elastic change in length of the pulling element itself defines the tensioning device.
  • an elastic length compensation is provided at a deflection point of the at least one pulling member.
  • the tensioning path is kept ready by the elastic deflection points of the tension element, in that the length of the guide path for the tension element can be changed elastically by changing the position of the at least one deflection point .
  • the elastic length compensation can, for example, be designed in such a way that at the deflection point with the length compensation at least one deflection collet is provided, which is tensioned via the elastic length compensation at a stationary point, with the tensioning device at least in a travel range in front of and in the extended position of the associated curtain part exerts a tensioning force on the pulling element, which is added to a tensioning force built up by the curtain weight.
  • the winding diameter of the winding roll remains constant over the travel range of the at least one curtain part. According to the specifications according to the invention, this means that the winding roll diameter corresponds to an average cloth bale diameter, the winding roll diameter defining in which extended position of the at least one curtain part the minimum force occurs and which tensioning forces should be present in the two end positions.
  • the effective winding diameter of the at least one winding roll changes over the travel path of the at least one curtain part.
  • the traversing range in which there is a particularly low clamping force can be extended by a non-constant winding diameter and a more targeted adjustment of the clamping forces occurring in the end positions can be undertaken.
  • a structurally more complex solution with a particularly precisely defined winding diameter can provide that the at least one winding roll has an axial extension with a winding diameter that changes over this axial extension. This can be implemented, for example, by the defined placement of the end of the pulling element in a circumferential groove on the outer circumference of the winding roll.
  • the winding roll has an adjustable basic diameter so that it can be adapted to the respective system configuration.
  • the basic diameter means the diameter of the winding roller when the traction cable is unwound, whereby this is constant or has a different radius over the length of the winding roller.
  • an adjustable winding roll provides that the basic diameter is formed by a plurality of longitudinal elements distributed evenly over the circumference, which can be fixed at the front in different radial positions on the walls of the winding roll.
  • the longitudinal elements which can be simple rods, for example, form a polygon around the circumference of which the traction cable can then be wound with an adjustable mean winding diameter.
  • the circumference is not exactly circular.
  • a further preferred embodiment of the invention provides that the walls have elongated holes for fixing the longitudinal elements, which extend in the circumferential direction at a varying distance from the axis of rotation.
  • This design makes it possible to change the distance between the longitudinal elements and the axis of rotation by changing the position of the longitudinal elements in the elongated holes, in which they are clamped with screws, for example, and thus setting the basic diameter as at least the initial winding diameter.
  • a particularly preferred embodiment of the invention provides that the walls on both sides of the winding roll each consist of two discs that can be rotated relative to one another in the released state, the elongated holes of which have opposite orientations, the longitudinal elements being arranged at the interface in the elongated holes of both discs.
  • This embodiment has the particular advantage that the longitudinal elements initially sit loosely in the elongated holes (two on each side of the winding roll) and then the distance between the longitudinal elements and the longitudinal axis can be adjusted by rotating the two discs on the walls relative to one another. The setting then also takes place synchronously for all longitudinal elements, so that the laborious individual setting of all longitudinal elements is no longer necessary. As soon as the desired position is reached, the longitudinal elements are clamped at the appropriate positions. It is preferred here that only the two discs are connected to one another in a torsionally rigid manner, the longitudinal elements then also being fixed at the crossing point of the two oblong holes. This is considerably easier than clamping all the longitudinal elements individually with the discs, which is also possible in principle.
  • the sun protection system according to the invention is particularly suitable for use as an awning, whereby the awning can be designed with two triangular curtain parts, at the tips of which a curtain-side traction cable is fixed, which is part of the traction element.
  • the two parts of the curtain are wound up alternately on a winding shaft.
  • a preferred embodiment of the traction system of such an awning can provide that the two curtain-side traction cables are each guided over a first deflection roller, which form a common deflection device that is held in place by the elastic length compensation.
  • the two curtain-side traction ropes can be connected at a connection point to a winding-roller-side traction rope which, as a further component of the traction element, is guided to a single winding roller.
  • a preferred further development of the invention provides that the two curtain-side pull ropes are connected to one another and guided over a second deflection roller, which is held on the winding-roller-side pull rope.
  • a sun protection system designed as an awning 10 is shown in an oblique view.
  • the awning has two triangular hanging parts 12, 14, the tips 16, 18 of which form the free end of the respective hanging part 12, 14.
  • the hanging parts 12, 14 can be wound up on a central winding shaft 20, which in the illustrated embodiment can be rotated by means of a manual crank drive 22.
  • a manual crank drive 22 Of this crank drive, only an eyelet 24 is shown for a hand crank to be hung therein, with the non-visible gearing being self-locking, so that due to tensile forces acting on the curtain tips 16, 18 on the winding shaft 20 moments can not rotate them.
  • an electric drive can also be provided, e.g. in the form of a tubular motor seated in the winding shaft.
  • the winding shaft 20 is rotatably mounted between two first support posts 26, 28, with the awning having two further second support posts 30, 32 at its disposal.
  • a first deflection roller 34 , 36 is attached to each of the second support posts 30 , 32 , each serving to deflect a first pull cable 38 , 40 on the curtain side, which is connected to the curtain tips 16 , 18 .
  • the two hanging ropes 38, 40 on the hanging side are components of a pulling element that connects the two hanging tips 16, 18 with a winding roller 42 that is arranged coaxially and torsionally rigid on the winding shaft 20, so that in a combination consisting of the two hanging parts 12, 14 and the pulling element revolving train system is formed.
  • the two curtain-side pull cables 38, 40 are deflected by the two first deflection rollers 34, 36 to a pair of second deflection rollers 44, 46 mounted next to one another common holder 48 are held by a clamping device 50 on one of the two support posts 26 for the winding shaft 20.
  • the tensioning device 50 consists here essentially of two tension-loaded coil springs 52 and is provided for building up a desired tension in the entire tension system.
  • the tensioning device 50 with the coil springs 52 is pretensioned to the maximum, so that the tension element with the tension cables 38, 40 on the blind side is also maximally tensioned and the blind parts 12, 14 are tightened, so that they have a good have a visual appearance and are insensitive to attacking gusts of wind.
  • the pair of second deflection rollers 44, 46 deflects the curtain-side pull cables 38, 40 in such a way that they are guided at a close distance to a third deflection roller 54, where they are connected to one another.
  • This connection of the two pull cables on the curtain side via the third deflection roller 54 which is part of the pull system and moves with the pull system when the length of the two curtain parts 12, 14 is adjusted, allows length compensation between the two curtain parts 12, 14, e.g. in the event of unforeseen movement a gust of wind or something.
  • the traction element continues via the third deflection roller 54 and a tension rope 56 on the winding roller side fixed thereto to the winding roller 42, to which the end of the tension rope 56 on the winding roller side is fixed.
  • the pull rope 56 on the winding roller side initially runs parallel to the winding shaft 20 and is then guided via a fourth deflection roller 58 to the winding roller, which is held on the support post 28 opposite the support post 26 provided for holding the tensioning device 50 .
  • FIGS 3 and 4 show further enlarged details of the winding roller 42 with the hanging parts 12, 14 completely unwound.
  • the effective winding diameter of the winding shaft 20 practically corresponds to its diameter here, since the hanging cloth layers 60 are almost completely unwound. It is easy to see in 4 , that the winding diameter 62 of the winding roller 42 is greater than the effective winding diameter of the winding shaft 20. As a result, when the curtain is let out into this position, a greater length of the pull cable 56 on the winding roller side is wound up than the cloth length is output from the winding shaft 20.
  • the effective winding diameter of the winding shaft 20 is determined by the number of wound layers 60 of hanging cloth, it increases when the hanging parts 12, 14 are pulled in, so that the change in length per angle of rotation in the pulling element decreases.
  • the decrease in the tension of the curtain initially extends to the in Figures 5 and 6 shown intermediate position of the curtain parts 12, 14 continued.
  • the winding roll diameter 62 then corresponds approximately to the effective winding diameter of the winding shaft 20 with the wound layers of cloth. If the tensioning device 50 is designed in such a way that it is completely unloaded in this intermediate position, the remaining pretensioning of the traction system is generated exclusively by the weight of the curtain acting in this intermediate position.
  • FIG. 7 shows the installation position of the winding roller 142 corresponding to the winding roller 42 shown above (see, e.g 4 , which is replaced by the winding roll 142 with variable base diameter.
  • the traction cable and the other parts of the system are 7 been omitted, in Figures 8 to 11 only the winding roll 142 itself is shown.
  • the winding roller 142 is constructed in several parts. It has first and second walls 144 and 146, each consisting of an inner small disc 148,150 and a larger outer disc 152,154.
  • the walls 144, 146 are connected to the winding shaft 20 in a torsionally rigid manner.
  • a plurality of rods 160 are arranged at the same but adjustable distance from the axis of rotation of the winding roller 142.
  • the discs 148, 150, 152, 154 each have a number of elongated holes 162, 164, 166, 168 corresponding to the number of rods 160, the elongated holes extending in the circumferential direction with a changing distance from the axis of rotation of the winding roller 142.
  • the elongated holes are curved, with the curvatures of the elongated holes 162, 164 of the smaller disks 148, 150 running in the opposite direction to the curvatures of the elongated holes 166, 168 of the larger disks.
  • the opposing curvatures result in cut openings when the two disks are superimposed, into which the rods 160 with tapered tips 170 are inserted.
  • the diameter of the tips 170 is smaller, the diameter of the shanks 172 of the rods is greater than the width of the elongated holes, so that the shoulders 174 between the shanks and the tips 170 at the edges of the elongated holes 162, 164 of the smaller disks 148, 150 can support.
  • Internal threads 176 are formed in the tips 170, into which fastening screws 178 are screwed. In the exemplary embodiment shown, these form a hold against the winding roll 142 falling apart, but here they do not jam the rods 160 against the discs. Rather, a certain amount of play is deliberately set, which allows the position of the tips in the elongated holes to be adjusted.
  • the small and larger discs are each designed to be rotatable relative to one another, with means being provided for fixing the two discs to one another in a torsionally rigid manner.
  • the two smaller discs 148, 150 are permanently connected to one another in a torsionally rigid manner via a connecting rod 186.
  • the means for torsionally rigid fixing of the two pairs of disks to each other are here as a series of axial bores 180 distributed over the circumference and arranged on a specific radius on the outer edge of the larger disks 152, 154 and a tab arranged on the outer edge of the smaller disks 148, 150 182 is formed with a bore 184 which is on the same radius as the axial bores 180 in the larger disks 152,154.
  • the bores 184 of the tabs 182 can each be fixed in an axial bore by means of pins (not shown) to be attached so that they cannot be lost, so that the disks and thus also the pins are fixed as a composite.
  • the discs When the pins are loosened, the discs can be rotated relative to one another, with the intersections of the elongated holes between a maximum radially inner position defined by the inner ends of the elongated holes (see Fig 11 ), and a maximum radially outer position, which is defined by the outer ends of the elongated holes (see 10 ) are adjustable.
  • the rods define a basic diameter onto which the traction cable can be wound. This can be adjusted in the manner described above, so that an optimal average basic diameter can be set for the respective system.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Awnings And Sunshades (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP22152729.4A 2021-01-22 2022-01-21 Installation de protection solaire doté d'un système de tirage Pending EP4033047A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021101419.0A DE102021101419A1 (de) 2021-01-22 2021-01-22 Sonnenschutzanlage mit einem Zugsystem

Publications (1)

Publication Number Publication Date
EP4033047A1 true EP4033047A1 (fr) 2022-07-27

Family

ID=79927325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22152729.4A Pending EP4033047A1 (fr) 2021-01-22 2022-01-21 Installation de protection solaire doté d'un système de tirage

Country Status (2)

Country Link
EP (1) EP4033047A1 (fr)
DE (1) DE102021101419A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29823091U1 (de) * 1998-12-28 1999-03-25 Paul Voss GmbH & Co, 57413 Finnentrop Spannvorrichtung für ein flexibles Zugelement einer Markise
EP0865557B1 (fr) 1995-12-06 2000-08-23 Norbert Kautzky Mechanik Gesellschaft mbH Tente-parasol reglable
DE19807916C2 (de) * 1998-02-25 2001-10-18 Voss Paul Gmbh & Co Markise mit größenverstellbarer Wickelrolle
EP0865577B1 (fr) 1995-12-07 2002-07-03 Ebara Corporation Turbomachines et leur procede de fabrication
EP1273734B1 (fr) * 2001-07-05 2010-08-25 Schmitz-Werke GmbH + Co. KG Store de jardins d'hiver ou similaire
EP1914365B1 (fr) 2006-10-10 2011-05-25 WAREMA Renkhoff GmbH Installation de protection contre le soleil ou la pluie
JP2015224452A (ja) * 2014-05-27 2015-12-14 タカノ株式会社 巻き取り式タープ
EP2765254B1 (fr) 2013-02-08 2016-08-03 Alexander Hoekstra Dispositif d'enroulement pour voiles d'ombrage, marquises et analogues
GB2535506A (en) * 2015-02-19 2016-08-24 Guthrie Douglas Group Ltd Retractable blind system
EP3527741A1 (fr) * 2018-02-16 2019-08-21 Roberto Bettega Systeme de couverture et d'ombrage d'une zone au sol

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865557B1 (fr) 1995-12-06 2000-08-23 Norbert Kautzky Mechanik Gesellschaft mbH Tente-parasol reglable
EP0865577B1 (fr) 1995-12-07 2002-07-03 Ebara Corporation Turbomachines et leur procede de fabrication
DE19807916C2 (de) * 1998-02-25 2001-10-18 Voss Paul Gmbh & Co Markise mit größenverstellbarer Wickelrolle
DE29823091U1 (de) * 1998-12-28 1999-03-25 Paul Voss GmbH & Co, 57413 Finnentrop Spannvorrichtung für ein flexibles Zugelement einer Markise
EP1273734B1 (fr) * 2001-07-05 2010-08-25 Schmitz-Werke GmbH + Co. KG Store de jardins d'hiver ou similaire
EP1914365B1 (fr) 2006-10-10 2011-05-25 WAREMA Renkhoff GmbH Installation de protection contre le soleil ou la pluie
EP2765254B1 (fr) 2013-02-08 2016-08-03 Alexander Hoekstra Dispositif d'enroulement pour voiles d'ombrage, marquises et analogues
JP2015224452A (ja) * 2014-05-27 2015-12-14 タカノ株式会社 巻き取り式タープ
GB2535506A (en) * 2015-02-19 2016-08-24 Guthrie Douglas Group Ltd Retractable blind system
EP3527741A1 (fr) * 2018-02-16 2019-08-21 Roberto Bettega Systeme de couverture et d'ombrage d'une zone au sol

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Publication number Publication date
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