EP3959409B1 - External screening arrangement with a self-adjusting return element - Google Patents
External screening arrangement with a self-adjusting return element Download PDFInfo
- Publication number
- EP3959409B1 EP3959409B1 EP20816901.1A EP20816901A EP3959409B1 EP 3959409 B1 EP3959409 B1 EP 3959409B1 EP 20816901 A EP20816901 A EP 20816901A EP 3959409 B1 EP3959409 B1 EP 3959409B1
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- EP
- European Patent Office
- Prior art keywords
- screening
- pulley
- screening arrangement
- axis
- external
- 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.)
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- 238000012216 screening Methods 0.000 title claims description 132
- 238000004804 winding Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
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- 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
- E06B9/62—Counterweighting arrangements
-
- 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
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- 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
- E06B2009/583—Cords or cables
Definitions
- the present invention relates to an external screening arrangement according to the preamble of claim 1.
- the invention furthermore relates to a method of bringing such a screening arrangement from a supply condition to a mounted condition, and to a combination of such a screening arrangement and a roof window.
- Screening arrangements positioned in front of windows to cover the window opening from direct sunlight in the screening position are common. Such screening arrangements are typically either positioned on the interior or the exterior side of the window opening to be screened.
- Internal screening arrangements include roller blinds, Venetian blinds, pleated blinds etc. and are typically relatively easy to install, as the installation site is normally immediately accessible by the person carrying out the installation and the entire operation may be carried from the inside of the building in which the window is installed.
- External screening arrangements are from the outset made from materials being sturdier and heavier than internal screening arrangements, and the installation site involves building parts located on the exterior side of the building. Screening arrangements also need to fulfil different requirements depending on whether they are installed in a façade window, i.e.
- EP 2 650 463 A2 One example of a prior art document addressing the issue of facilitated mounting is EP 2 650 463 A2 .
- return assemblies including rotatable return pulleys are detachably attached to the casing in an as-delivered state.
- each return element comprises a base part connected to the guide part and to the side rail in a rotational connection around a second axis to allow for both the base part and the guide part to rotate around the second axis
- each said return element comprises a pulley device in which the guide part includes one pulley, where the pulley is rotatable around said first axis, and the base part includes a pulley receiving part, said pulley being connected to the pulley receiving part such that pulley and the pulley receiving part are rotatable around the second axis, and wherein the second axis is substantially perpendicular on the first axis.
- the side rails may be safely connected to the top casing of the screening arrangement without taking particular and time-consuming steps to ensure correct positioning of the guidance cord or cords of the cord system.
- the return element By providing the possibility of the return element to rotate around a second axis, simply providing a tensioning force on the guidance cord or cords, typically occurring during first use of the external screening arrangement, the return element will act as a self-righting mechanism ensuring that any cord hassle due to less careful mounting is dissolved.
- the first axis and the second axis may in principle be chosen such that they assume any angle between them, it is not foreseen that the axes coincide. Pulleys provide for a reliable and cost-effective solution with excellent mechanical performance.
- the external screening arrangement may be an external flat roof window screening arrangement and/or an external inclined roof window screening arrangement.
- the external screening arrangement may preferably be configured for being mounted on a roof window in an inclined roof and/or a flat roof.
- the external screening arrangement is in a mounted condition mounted on a roof window, wherein said roof window is mounted in an inclined roof or a flat roof.
- the pulley receiving part is rotatably connected to a stationary part connected to the side rail such that the second axis is substantially parallel to the longitudinal direction of the side rail. While configurations involving alternative positions of the pulley device, providing the second axis in a stationary part of the side rail and with the rotational axis parallel to the side rail has proven to function particularly well.
- a method of bringing such an external screening arrangement from a supply condition to a mounted condition on the exterior side of a roof window with a window opening is provided.
- a combination of such an external screening arrangement and a roof window with a window opening, a frame structure and a sash structure configured to extend in parallel to the roof surface, each with top and bottom members and two mutually parallel side members is provided.
- a screening arrangement 1 in an embodiment of the invention, it is seen how the screening arrangement 1 comprises a screening body 11, a top casing 23 and a bottom profile 15.
- the screening arrangement 1 is configured to be mounted on a roof window 2 (see Fig. 2a ) to assume a mounted condition, in which the screening body 11 is movable in a general longitudinal direction between a non-screening position and a number of non-screening positions in which the screening body 11 at least partially covers an opening of the roof window 2.
- the screening arrangement 1 further comprises a roller shaft 14 ( Figs 3a and 3b ) accommodated in the top casing 23 and connected to drive means, the drive means being configured to rotate the roller shaft 14 in a winding direction W1 and an unwinding direction W2 (see Figs 3a and 3b ).
- the screening body 11 has two side edges and a predefined length between a first end portion and a second end portion.
- the first end portion is connected to the roller shaft 14 accommodated in the top casing 23 such that the screening body 11 may be wound on the roller shaft 14 in the non-screening position.
- the second end portion is connected to a bottom profile 15.
- the screening arrangement comprises two side rails 21, 22, a first side rail 21 and a second side rail 22 to guide at least opposing ends of the bottom profile 15.
- the side edges of the screening body 11 may be guided in the side rails 21, 22.
- the term "ends" of the bottom profile 15 is to be construed to encompass any structure of the bottom profile 15 suitable to interact with the side rails 21, 22, including separate elements and one-piece configurations.
- the screening body 11 is shown in an unwound screening position, and in Fig. 1b the screening body is shown in a non-screening position, in which the screening body 11 is wound and stored on the roller shaft 14 in the top casing 23.
- the bottom profile 15 may either be completely accommodated within the top casing 23, or protrude slightly therefrom.
- the screening arrangement 1 is configured to be mounted on the exterior side of the roof window 2, which in turn is typically mounted in an inclined roof surface (not shown).
- the roof window 2 has a frame structure 3 and a sash structure 4.
- the frame structure 3 is configured to extend in parallel to the roof surface, while the sash structure 4 is configured to be opened to a variety of positions, for instance as shown in Fig. 2a .
- the frame structure 3 and the sash structure 4 each has a top member 3a, 4a and a bottom member 3d, 4d and two mutually parallel side members 3b, 3c, 4b, 4c.
- the sash structure 4 is pivotally connected to the frame structure 3 via hinges 5, in the shown embodiment here at a substantially central hinge axis, however other positions of the hinge axis are conceivable as well. Also visible in Fig. 2a is a pane 7 encased in the sash structure 4.
- the side rails 21, 22 are connected to the sash structure 4 in a slidable and rotatable connection at or near the bottom of the sash structure 4.
- the top casing 23 may either be rotatably or fixedly connected to the roof window 2, at or near the top of the frame structure 3.
- the connection between the top casing 23 and the side rails 21, 22 is either fixed, i.e. the side rails 21, 22 are rigidly connected to the top casing, or rotatable, i.e. there is a hinge connection (not shown) between the top casing 23 and the side rails 21, 22. Examples of a roof window with a prior art screening arrangement are shown in the embodiments of applications EP 3 015 637 A1 and EP 2 390 455 A1 .
- a fitting 6 is generally designated to indicate the slidable and rotatable connection between the bottom corners of the sash structure 4, defined by the bottom sash member 4d and the side sash members 4c, 4b, to the first side rail 21 and the second side rail 22, respectively.
- the fittings 6 allow for the sash structure 3 to be guided along the side rails 21, 22 when the sash structure 4 is pivoted about its hinge axis when opening the roof window 2.
- the top casing 23 comprises a slightly curved cover portion 232 and an end portion 233 at each of the longitudinal ends of the top casing 23. Furthermore, a solar panel 231 is placed in the top casing 23 which could be used to power the screening arrangement 1, possibly connected to a battery inside the top casing 23; however, power may also be provided from a main housing supply. Wiring, motor control and power means for the motor are not shown.
- the top casing 23 is rotatably connected to the frame structure 3 of the roof window 2 with a top casing hinge 234.
- the side rails 21, 22 are, at respective first fixed ends, rigidly, i.e. fixedly connected to the top casing 23 such that the side rails 21, 22 may pivot out of the plane defined by the roof surface and the frame structure 3 when opening the sash structure 4.
- Figs 3a and 3b which show the operating principle and possible configurations of a cord system of embodiments of the screening arrangement 1 of the invention, two guidance cords 12 are provided to ensure parallel guidance of the bottom profile 15 during operation of the screening arrangement 1.
- Each guidance cord 12 is, at one end, connected to a respective winding device including a winding reel 16, and, at another end, connected to a tensioning device generally designated 13 in the bottom profile 15.
- the configuration of such winding reels are well-known as such, one example being found in the embodiment of Applicant's WO 2006/074653 A1 . It is noted that the term "in the bottom profile" should be interpreted in its broadest sense, thus including positions at or near a wall of the bottom profile, such as for instance behind a front wall of an open profile.
- the guidance cords 12 are wound on the winding device oppositely relative to how the screening body 11 is wound on the roller shaft 14, i.e. when the roller shaft 14 rotates in the winding direction W1, the screening body 11 is wound, while the guidance cords 12 are unwound, and vice versa when the roller shaft 14 rotates in the unwinding direction W2.
- the winding device including the winding reel 16 and the roller shaft 14 are both accommodated in the top casing 23.
- the winding reels 16 should unwind/wind a length of guidance cord 12 substantially equal to the length of screening body 11 wound/unwound by the roller shaft 14 when the bottom profile 15 is moved in the general longitudinal direction of the screening arrangement 1 as defined by the screening body 11 and the side rails 21, 22.
- the guidance cords 12 are slackened, thereby impairing the parallel guiding function.
- the tensioning device 13 provides a tension on the guidance cords 12 such that during operation, variations in the required length of the guidance cords 12 is accommodated for.
- the winding reel 16 is arranged at one end of the roller shaft 14.
- the winding reel 16 can however, also be arranged inside the roller shaft 14 as shown in Fig. 3b , such that the roller shaft 14 and thus also the screening body 11 may be made wider, or two winding reels, one at the respective end of the roller shaft 14.
- Figs 3a and 3b Also visible in the general overviews of Figs 3a and 3b are return elements 10 for guiding the respective guidance cord 12 from the winding reel 16 around the associated return element 10 and up to and into the bottom profile 15, and further to the tensioning device 13. Since the return element 10 is located at or near the free end of the respective side rail 21, 22, this means that the returning or upwards directed part of the guidance cord 12 runs alongside the downwards directed part of the guidance cord 12 from the winding reel 16 to the return element 10. The upwards directed part of the guidance cord 12 may run in the same track of the respective side rail 21, 22 as the downwards directed part of the guidance cord 12. In the embodiment shown in one and the same track 221 (cf. Figures of specific embodiments) of the side rail 22.
- the screening arrangement comprises an external screening arrangement with a substantially flat screening body also known as a panzer as seen in the unwound screening position, but the concept is applicable also to other forms of screenings such as awning blinds, external roller blinds, roller shutters with various types of lamellae etc.
- top casing 23 Details of the top casing 23 in the embodiment shown are shown in Figs 4a and 4b .
- the first end portion of the screening body 11 is connected to the roller shaft 14 accommodated in the top casing 23.
- the winding device including a winding reel 16 is provided.
- a similar winding device may be provided at the opposite end of the roller shaft 14.
- the winding reel 16 serves to receive the guidance cord 12 forming part of the cord system to serve as a parallel guidance assembly of the screening arrangement in order to keep the bottom profile 15 substantially parallel to the top casing 23 throughout operation.
- Fig. 5 shows a part-sectional view of a corner of the screening arrangement 1 of the invention, namely the lower left-hand corner as seen from the exterior side of the external screening arrangement 1 when mounted on the roof window 2.
- the side rail 22 of the screening arrangement 1 is provided with a corner cap 24.
- the corner cap 24 is provided at an end of the side rail 22 opposite to the top casing 23.
- the corner cap 24 acts as a stop to the track 221.
- the corner cap 24 is configured to accommodate a return element 10.
- the return element 10 comprises a guide part 101.
- the guide part 101 is configured to provide a change of direction around a first axis R1 (cf. Figs 7b and 8b ).
- the guide part 101 comprises a pulley as will be described in further detail below.
- the first axis R1 is preferably oriented substantially perpendicular to the longitudinal extension of the side rail 22 such that a change of direction of the guidance cord 12 substantially in parallel with the plane of the screening body 11 is ensured.
- the guide part 101 of the return element 10 is connected either directly or in-directly to the side rail 22 in a rotational connection.
- the rotational connection between the side rail 22 and the guide part 101 allows for the guide part to rotate around a second axis R2.
- the guide part 101 is connected to the side rail 22 via a base part 102.
- the base part 102 is then connected to the side rail 22 in a rotational connection, thereby allowing for both the base part 102 and the guide part 101 to rotate around the second axis R2.
- the return element is provided in the form of a pulley device 10.
- the guide part of the pulley device 10 comprises a pulley 101.
- the pulley 101 is rotatable around the first axis R1 (cf. Figs 7b and 8b ) and is connected to a pulley receiving part 102.
- the pulley 101 is rotationally connected to the pulley receiving part 102, thereby allowing the pulley 101 to rotate around the first axis R1 while being connected to the pulley receiving part 102.
- the pulley 101 and the pulley receiving part 102 are connected via a connection member 105, here in the form of a pin 105 extending through the centre of the pulley 101.
- a stationary part 245 is provided in the corner cap 24 of the side rail 22, which is covered by a cap element 240. Such a stationary part 245 may also be formed at other positions of the side rails 21, 22.
- the pulley receiving part 102 is connected to the stationary part 245 of the corner cap 24 in a rotational connection such that the second axis R2 is substantially parallel to the longitudinal direction of the side rail 22.
- the stationary part 245 may be provided as an integral part of the corner cap 24, for instance formed in one piece or connected thereto during manufacture.
- the stationary part 245 forms a separate compartment in the corner cap 24 and comprises an aperture 2451.
- the pulley receiving part 102 is connected to the stationary part 245 in that the pulley receiving part 102 is inserted into the separate compartment through the aperture 2451.
- the part of the pulley receiving part 102 being inserted into the separate compartment being a shaft section 1022, a groove section 1023, and an end section 1024 of the pulley receiving part 102.
- the shaft section 1022, the groove section 1023, and the end section 1024 of the pulley receiving part 102 can be seen in detail.
- the shaft section 1022, the groove section 1023, and the end section 1024 of the pulley receiving part 102 inserted into the separate compartment is connected to a bearing 103.
- the bearing 103 being accommodated within the separate compartment of the corner cap 24.
- the bearing 103 facilitates rotation around the second axis R2.
- the bearing 103 may be a ball bearing, a roller bearing, a ball thrust bearing, roller thrust bearing, tapered roller bearing etc.
- Fig. 6 which shows a zoomed out sectional view of the pulley device 10 of Fig. 5
- the bearing 103 is seen to be wider than the aperture 2451, thereby the bearing 103 is securely accommodated within the separate compartment formed in the stationary part 245 of the corner cap 24.
- the bearing 103 is locked to the pulley receiving part 102 via a locking clip 104.
- the locking clip 104 will be discussed in greater detail in relation to Figs 8a to 8d .
- the screening body 11 is fully unwound, leading to the bottom profile 15 resting against the corner cap 24.
- the bottom profile 15 is provided with a guide track 151 for guiding the guidance cord 12 towards the tensioning device 13.
- this guide track 151 is formed with low-friction properties and has such a curvature that the guidance cord 12 is subjected to a minimum of wear.
- the bottom profile 15 may be provided with a guide pulley. The guide pulley may be fixed to the ends of the bottom profile 15.
- the pulley 101 is formed as a circular wheel with a grooved rim 1011 for accommodating the guidance cord 12.
- the pulley receiving part 102 comprises a head section 1021 providing a rotatable connection to the pulley 101 around the first axis R1.
- the head section 1021 is shaped as a fork with two prongs and the pulley 101 is accommodated in-between the two prongs of the head section 1021.
- the rotatable connection between the head section 1021 and the pulley 10 may be achieved using the connection member 105.
- connection member 105 may be a connection pin 105 extending through the centre of the pulley 101 and the prongs of the head section 1021.
- the pulley receiving part 102 further comprising the shaft section 1022.
- the shaft section 1022 allows for the pulley device to achieve a rotatable connection around the second axis R2.
- the shaft section 1022 comprises a groove section 1023 and an end section 1024.
- the groove section 1023 is configured for receiving the locking clip 104 in a locking engagement.
- a surface of revolution created by rotating said guide part 101 around the second axis R2 is an ellipsoid.
- the ellipsoid is created as a consequence of the second axis R2 intersecting a diameter of the pulley 101.
- the second axis R2 is perpendicular to the first axis R1 and intersects the guide part 101.
- Figs 8a to 8d show views corresponding to Figs 7a to 7d , however where also the bearing 103 and the locking clip 104 are shown.
- the bearing 103 is seen connected to the shaft section 1022 of the pulley receiving part 102.
- the bearing 103 is held in place on the shaft section 1022 by the locking clip 104.
- the locking clip 104 is seen received within the groove section 1023 of the pulley device 10.
- the locking clip 104 may engage the groove section 1023 in a snap-lock engagement.
- the roof window 2 is provided with a frame structure 3 and a sash structure 4 extending in parallel to the roof surface, each with top 3a, 4a and bottom members 3d, 4d and two mutually parallel side members 3b, 3c, 4b, 4c.
- the roof window 2 may be provided in combination with an external screening arrangement 1 as described herewith, or separately.
- an external screening arrangement 1 is provided in a supply condition, in which the screening body 11 is connected to the bottom profile 15 and wound on the roller shaft 14 such that substantially the entire length of the screening body 11 is accommodated in the top casing 23.
- the at least one guidance cord 12 of the cord system is positioned in the associated side rail 21, 22, and the side rails 21, 22 are temporarily connected to the top casing 23 such that the top casing 23 and the side rails 21, 22 are positioned substantially in parallel to each other to form a transportation package.
- the temporary connection may for instance be provided in the form of straps or more intricate devices.
- the top casing 23 is rotatably connected to the top member of the frame of the roof window.
- the side rails 21, 22 are connected to the sash of the roof window by means of fittings 6, following which the side rails 21, 22 are rigidly connected to the top casing 23.
- the installer or user proceeds to operating the screening arrangement 1 and thus moving the bottom profile 15 towards a screening position such that the screening body 11 is unwound from the roller shaft 14 and the at least one guidance cord 12 is wound on the winding device, thereby allowing the return element 10 to assume a correct operating position. Any hassle of the guidance cord or cords due to involuntary twisting of the side rails during mounting will automatically be dissolved during this first use.
Description
- The present invention relates to an external screening arrangement according to the preamble of
claim 1. The invention furthermore relates to a method of bringing such a screening arrangement from a supply condition to a mounted condition, and to a combination of such a screening arrangement and a roof window. - Screening arrangements positioned in front of windows to cover the window opening from direct sunlight in the screening position are common. Such screening arrangements are typically either positioned on the interior or the exterior side of the window opening to be screened. Internal screening arrangements include roller blinds, Venetian blinds, pleated blinds etc. and are typically relatively easy to install, as the installation site is normally immediately accessible by the person carrying out the installation and the entire operation may be carried from the inside of the building in which the window is installed. External screening arrangements, on the other hand, are from the outset made from materials being sturdier and heavier than internal screening arrangements, and the installation site involves building parts located on the exterior side of the building. Screening arrangements also need to fulfil different requirements depending on whether they are installed in a façade window, i.e. in a substantially vertical position, or in an inclined or even horizontal surface such as a roof. Not only are screening arrangements for roof windows necessarily configured to take into account the effects of gravity due to the presence of a resulting force out of the general plane of the roof window, but the installation position itself, on a roof, renders mounting more complicated. Needless to say, this applies in particular to external screening arrangements for roof windows, and even more so in case the external screening arrangement requires the presence of not only side rails to take into account the inclined or horizontal position, but also a cord system with one or more guidance cords that need to be mounted correctly in order to ensure proper operation of the external screening arrangement. Adding to the complexity is the fact that such external screening arrangements are typically supplied in a condition in which the side rails are disconnected from the top casing in order to save on packaging, storage and transportation costs. Hence, such external screening arrangements are most often mounted on the roof window by professional installers. While this warrants that appropriate tools and equipment are used, there is still a need for improvement as regards the installation conditions since not least time is of essence during the mounting operation.
- One example of a prior art document addressing the issue of facilitated mounting is
EP 2 650 463 A2 - With this background, it is therefore an object of the invention to provide an external screening arrangement, which makes it possible to facilitate the installation conditions.
- In a first aspect, this and further objects are achieved by an external screening arrangement of the kind mentioned in the introduction, which is furthermore characterised in that each return element comprises a base part connected to the guide part and to the side rail in a rotational connection around a second axis to allow for both the base part and the guide part to rotate around the second axis, and that each said return element comprises a pulley device in which the guide part includes one pulley, where the pulley is rotatable around said first axis, and the base part includes a pulley receiving part, said pulley being connected to the pulley receiving part such that pulley and the pulley receiving part are rotatable around the second axis, and wherein the second axis is substantially perpendicular on the first axis.
- In this way, the side rails may be safely connected to the top casing of the screening arrangement without taking particular and time-consuming steps to ensure correct positioning of the guidance cord or cords of the cord system. By providing the possibility of the return element to rotate around a second axis, simply providing a tensioning force on the guidance cord or cords, typically occurring during first use of the external screening arrangement, the return element will act as a self-righting mechanism ensuring that any cord hassle due to less careful mounting is dissolved. While the first axis and the second axis may in principle be chosen such that they assume any angle between them, it is not foreseen that the axes coincide. Pulleys provide for a reliable and cost-effective solution with excellent mechanical performance.
- The external screening arrangement may be an external flat roof window screening arrangement and/or an external inclined roof window screening arrangement. The external screening arrangement may preferably be configured for being mounted on a roof window in an inclined roof and/or a flat roof. In an embodiment the external screening arrangement is in a mounted condition mounted on a roof window, wherein said roof window is mounted in an inclined roof or a flat roof.
- In a development of the above-mentioned presently preferred embodiment, the pulley receiving part is rotatably connected to a stationary part connected to the side rail such that the second axis is substantially parallel to the longitudinal direction of the side rail. While configurations involving alternative positions of the pulley device, providing the second axis in a stationary part of the side rail and with the rotational axis parallel to the side rail has proven to function particularly well.
- In a second aspect of the invention, a method of bringing such an external screening arrangement from a supply condition to a mounted condition on the exterior side of a roof window with a window opening is provided.
- In a third aspect, a combination of such an external screening arrangement and a roof window with a window opening, a frame structure and a sash structure configured to extend in parallel to the roof surface, each with top and bottom members and two mutually parallel side members is provided.
- Other presently preferred embodiments and further advantages will be apparent from the subsequent detailed description and drawings.
- For exemplifying purposes, the invention will be described in closer detail in the following with reference to embodiments thereof illustrated in the attached drawings, wherein:
-
Fig. 1a is a perspective view of a screening arrangement in an embodiment of the invention, with the screening body in an unwound, screening position; -
Fig. 1b is a view corresponding toFig. 1a , with the screening body in a wound-up, non-screening position; -
Fig. 2a is a perspective view of a roof window with a screening arrangement in another embodiment of the invention; -
Figs 3a and 3b are simplistic perspective views of the operational principles of a cord system, with a screening body in an unwound screening position; -
Fig. 4a is a partial perspective, sectional view, on a larger scale, of the left-hand top corner of the screening arrangement in an embodiment of the invention; -
Fig. 4b is a partial perspective view of details of the screening arrangement ofFig. 4a ; -
Fig. 5 is a part-sectional view of the lower left-hand corner of the external screening arrangement of the invention; -
Fig. 6 is a zoomed out part-sectional view of the external screening arrangement in the embodiment ofFig. 5 ; -
Figs 7a to 7d are isolated front, side, and perspective views of the pulley device of the embodiment ofFigs 5 and6 according to the invention; and -
Figs 8a to 8d are views corresponding toFigs 7a to 7d , respectively, of the pulley device with the bearing and the locking clip in an embodiment of the external screening arrangement according to the invention. - In the following detailed description, a preferred embodiments of the present invention will be described. However, it is to be understood that features of the different embodiments are exchangeable between the embodiments and may be combined in different ways, unless anything else is specifically indicated. It may also be noted that, for the sake of clarity, the dimensions of certain components illustrated in the drawings may differ from the corresponding dimensions in real-life implementations.
- It is noted that terms such as "up", "down", "left-hand", "right-hand", "exterior", "interior", "outer", "inner" are relative and refers to the viewpoint in question.
- Referring initially to
Fig. 1a and Fig. 1b , where perspective views of ascreening arrangement 1 in an embodiment of the invention are shown, it is seen how thescreening arrangement 1 comprises ascreening body 11, atop casing 23 and abottom profile 15. - The
screening arrangement 1 is configured to be mounted on a roof window 2 (seeFig. 2a ) to assume a mounted condition, in which thescreening body 11 is movable in a general longitudinal direction between a non-screening position and a number of non-screening positions in which thescreening body 11 at least partially covers an opening of theroof window 2. - The
screening arrangement 1 further comprises a roller shaft 14 (Figs 3a and 3b ) accommodated in thetop casing 23 and connected to drive means, the drive means being configured to rotate theroller shaft 14 in a winding direction W1 and an unwinding direction W2 (seeFigs 3a and 3b ). - The
screening body 11 has two side edges and a predefined length between a first end portion and a second end portion. The first end portion is connected to theroller shaft 14 accommodated in thetop casing 23 such that thescreening body 11 may be wound on theroller shaft 14 in the non-screening position. The second end portion is connected to abottom profile 15. - Furthermore, the screening arrangement comprises two
side rails first side rail 21 and asecond side rail 22 to guide at least opposing ends of thebottom profile 15. In some embodiments, also the side edges of thescreening body 11 may be guided in the side rails 21, 22. The term "ends" of thebottom profile 15 is to be construed to encompass any structure of thebottom profile 15 suitable to interact with the side rails 21, 22, including separate elements and one-piece configurations. - In
Fig. 1a , thescreening body 11 is shown in an unwound screening position, and inFig. 1b the screening body is shown in a non-screening position, in which thescreening body 11 is wound and stored on theroller shaft 14 in thetop casing 23. In the non-screening position, thebottom profile 15 may either be completely accommodated within thetop casing 23, or protrude slightly therefrom. - The
screening arrangement 1 is configured to be mounted on the exterior side of theroof window 2, which in turn is typically mounted in an inclined roof surface (not shown). Theroof window 2 has aframe structure 3 and asash structure 4. Theframe structure 3 is configured to extend in parallel to the roof surface, while thesash structure 4 is configured to be opened to a variety of positions, for instance as shown inFig. 2a . Theframe structure 3 and thesash structure 4 each has atop member 3a, 4a and abottom member parallel side members sash structure 4 is pivotally connected to theframe structure 3 viahinges 5, in the shown embodiment here at a substantially central hinge axis, however other positions of the hinge axis are conceivable as well. Also visible inFig. 2a is apane 7 encased in thesash structure 4. - In order to allow the
screening arrangement 1 to follow the movement of thesash structure 4 during opening of theroof window 2, the side rails 21, 22 are connected to thesash structure 4 in a slidable and rotatable connection at or near the bottom of thesash structure 4. Thetop casing 23 may either be rotatably or fixedly connected to theroof window 2, at or near the top of theframe structure 3. The connection between thetop casing 23 and the side rails 21, 22 is either fixed, i.e. the side rails 21, 22 are rigidly connected to the top casing, or rotatable, i.e. there is a hinge connection (not shown) between thetop casing 23 and the side rails 21, 22. Examples of a roof window with a prior art screening arrangement are shown in the embodiments ofapplications EP 3 015 637 A1 andEP 2 390 455 A1 - In
Fig. 2a , afitting 6 is generally designated to indicate the slidable and rotatable connection between the bottom corners of thesash structure 4, defined by thebottom sash member 4d and theside sash members 4c, 4b, to thefirst side rail 21 and thesecond side rail 22, respectively. Thefittings 6 allow for thesash structure 3 to be guided along the side rails 21, 22 when thesash structure 4 is pivoted about its hinge axis when opening theroof window 2. - In the embodiment of
Fig. 2a , thetop casing 23 comprises a slightlycurved cover portion 232 and anend portion 233 at each of the longitudinal ends of thetop casing 23. Furthermore, asolar panel 231 is placed in thetop casing 23 which could be used to power thescreening arrangement 1, possibly connected to a battery inside thetop casing 23; however, power may also be provided from a main housing supply. Wiring, motor control and power means for the motor are not shown. Thetop casing 23 is rotatably connected to theframe structure 3 of theroof window 2 with atop casing hinge 234. The side rails 21, 22 are, at respective first fixed ends, rigidly, i.e. fixedly connected to thetop casing 23 such that the side rails 21, 22 may pivot out of the plane defined by the roof surface and theframe structure 3 when opening thesash structure 4. - Referring now to
Figs 3a and 3b , which show the operating principle and possible configurations of a cord system of embodiments of thescreening arrangement 1 of the invention, twoguidance cords 12 are provided to ensure parallel guidance of thebottom profile 15 during operation of thescreening arrangement 1. - Each
guidance cord 12 is, at one end, connected to a respective winding device including a windingreel 16, and, at another end, connected to a tensioning device generally designated 13 in thebottom profile 15. The configuration of such winding reels are well-known as such, one example being found in the embodiment of Applicant'sWO 2006/074653 A1 . It is noted that the term "in the bottom profile" should be interpreted in its broadest sense, thus including positions at or near a wall of the bottom profile, such as for instance behind a front wall of an open profile. - The
guidance cords 12 are wound on the winding device oppositely relative to how thescreening body 11 is wound on theroller shaft 14, i.e. when theroller shaft 14 rotates in the winding direction W1, thescreening body 11 is wound, while theguidance cords 12 are unwound, and vice versa when theroller shaft 14 rotates in the unwinding direction W2. The winding device including the windingreel 16 and theroller shaft 14 are both accommodated in thetop casing 23. - In principle, the winding
reels 16 should unwind/wind a length ofguidance cord 12 substantially equal to the length ofscreening body 11 wound/unwound by theroller shaft 14 when thebottom profile 15 is moved in the general longitudinal direction of thescreening arrangement 1 as defined by thescreening body 11 and the side rails 21, 22. However, due to variations in the effective diameter of theroller shaft 14 caused by successive windings of thescreening body 11 in dependence on the amount of screeningbody 11 wound on theroller shaft 14, theguidance cords 12 are slackened, thereby impairing the parallel guiding function. To compensate for slack in theguidance cords 12, thetensioning device 13 provides a tension on theguidance cords 12 such that during operation, variations in the required length of theguidance cords 12 is accommodated for. - In the configuration shown in
Fig. 3a , the windingreel 16 is arranged at one end of theroller shaft 14. The windingreel 16 can however, also be arranged inside theroller shaft 14 as shown inFig. 3b , such that theroller shaft 14 and thus also thescreening body 11 may be made wider, or two winding reels, one at the respective end of theroller shaft 14. - Also visible in the general overviews of
Figs 3a and 3b arereturn elements 10 for guiding therespective guidance cord 12 from the windingreel 16 around the associatedreturn element 10 and up to and into thebottom profile 15, and further to thetensioning device 13. Since thereturn element 10 is located at or near the free end of therespective side rail guidance cord 12 runs alongside the downwards directed part of theguidance cord 12 from the windingreel 16 to thereturn element 10. The upwards directed part of theguidance cord 12 may run in the same track of therespective side rail guidance cord 12. In the embodiment shown in one and the same track 221 (cf. Figures of specific embodiments) of theside rail 22. - In the embodiments shown, the screening arrangement comprises an external screening arrangement with a substantially flat screening body also known as a panzer as seen in the unwound screening position, but the concept is applicable also to other forms of screenings such as awning blinds, external roller blinds, roller shutters with various types of lamellae etc.
- Details of the
top casing 23 in the embodiment shown are shown inFigs 4a and 4b . The first end portion of thescreening body 11 is connected to theroller shaft 14 accommodated in thetop casing 23. At the end of theroller shaft 14, the winding device including a windingreel 16 is provided. A similar winding device may be provided at the opposite end of theroller shaft 14. In a manner known per se, the windingreel 16 serves to receive theguidance cord 12 forming part of the cord system to serve as a parallel guidance assembly of the screening arrangement in order to keep thebottom profile 15 substantially parallel to thetop casing 23 throughout operation. - Reference is now made to
Fig. 5 , which shows a part-sectional view of a corner of thescreening arrangement 1 of the invention, namely the lower left-hand corner as seen from the exterior side of theexternal screening arrangement 1 when mounted on theroof window 2. Theside rail 22 of thescreening arrangement 1 is provided with acorner cap 24. Thecorner cap 24 is provided at an end of theside rail 22 opposite to thetop casing 23. Thecorner cap 24 acts as a stop to thetrack 221. Thecorner cap 24 is configured to accommodate areturn element 10. Thereturn element 10 comprises aguide part 101. Theguide part 101 is configured to provide a change of direction around a first axis R1 (cf.Figs 7b and8b ). Theguide part 101 comprises a pulley as will be described in further detail below. The first axis R1 is preferably oriented substantially perpendicular to the longitudinal extension of theside rail 22 such that a change of direction of theguidance cord 12 substantially in parallel with the plane of thescreening body 11 is ensured. Theguide part 101 of thereturn element 10 is connected either directly or in-directly to theside rail 22 in a rotational connection. The rotational connection between theside rail 22 and theguide part 101 allows for the guide part to rotate around a second axis R2. According to the invention, theguide part 101 is connected to theside rail 22 via abase part 102. Thebase part 102 is then connected to theside rail 22 in a rotational connection, thereby allowing for both thebase part 102 and theguide part 101 to rotate around the second axis R2. - In the
screening arrangement 1 shown inFig. 5 , the return element is provided in the form of apulley device 10. The guide part of thepulley device 10 comprises apulley 101. Thepulley 101 is rotatable around the first axis R1 (cf.Figs 7b and8b ) and is connected to apulley receiving part 102. Thepulley 101 is rotationally connected to thepulley receiving part 102, thereby allowing thepulley 101 to rotate around the first axis R1 while being connected to thepulley receiving part 102. Thepulley 101 and thepulley receiving part 102 are connected via aconnection member 105, here in the form of apin 105 extending through the centre of thepulley 101. Furthermore, thepulley 101 and thepulley receiving part 102 are connected to theside rail 22 in a rotational connection, thereby allowing both thepulley 101 and thepulley receiving part 102 to rotate around the second axis R2. The second axis R2 is substantially perpendicular on the first axis R1. In the embodiment ofFig. 5 , astationary part 245 is provided in thecorner cap 24 of theside rail 22, which is covered by a cap element 240. Such astationary part 245 may also be formed at other positions of the side rails 21, 22. In the embodiment shown, thepulley receiving part 102 is connected to thestationary part 245 of thecorner cap 24 in a rotational connection such that the second axis R2 is substantially parallel to the longitudinal direction of theside rail 22. Thestationary part 245 may be provided as an integral part of thecorner cap 24, for instance formed in one piece or connected thereto during manufacture. Thestationary part 245 forms a separate compartment in thecorner cap 24 and comprises anaperture 2451. Thepulley receiving part 102 is connected to thestationary part 245 in that thepulley receiving part 102 is inserted into the separate compartment through theaperture 2451. The part of thepulley receiving part 102 being inserted into the separate compartment being ashaft section 1022, agroove section 1023, and anend section 1024 of thepulley receiving part 102. InFigs 7a to 7d theshaft section 1022, thegroove section 1023, and theend section 1024 of thepulley receiving part 102 can be seen in detail. Now returning toFig. 5 again, theshaft section 1022, thegroove section 1023, and theend section 1024 of thepulley receiving part 102 inserted into the separate compartment is connected to abearing 103. Thebearing 103 being accommodated within the separate compartment of thecorner cap 24. Thebearing 103 facilitates rotation around the second axis R2. Thebearing 103 may be a ball bearing, a roller bearing, a ball thrust bearing, roller thrust bearing, tapered roller bearing etc. - Referring to
Fig. 6 , which shows a zoomed out sectional view of thepulley device 10 ofFig. 5 , thebearing 103 is seen to be wider than theaperture 2451, thereby thebearing 103 is securely accommodated within the separate compartment formed in thestationary part 245 of thecorner cap 24. Thebearing 103 is locked to thepulley receiving part 102 via alocking clip 104. Thelocking clip 104 will be discussed in greater detail in relation toFigs 8a to 8d . In thescreening arrangement 1 shown inFig. 6 thescreening body 11 is fully unwound, leading to thebottom profile 15 resting against thecorner cap 24. Thebottom profile 15 is provided with aguide track 151 for guiding theguidance cord 12 towards the tensioningdevice 13. In a manner known per se, thisguide track 151 is formed with low-friction properties and has such a curvature that theguidance cord 12 is subjected to a minimum of wear. As an alternative to theguide track 151, thebottom profile 15 may be provided with a guide pulley. The guide pulley may be fixed to the ends of thebottom profile 15. - Referring now to
Figs 7a to 7d , which show isolated front, side, and perspective views of thepulley device 10 ofFigs 5 and6 in an embodiment according to the invention. Thepulley 101 is formed as a circular wheel with agrooved rim 1011 for accommodating theguidance cord 12. Thepulley receiving part 102 comprises ahead section 1021 providing a rotatable connection to thepulley 101 around the first axis R1. In the shown embodiment thehead section 1021 is shaped as a fork with two prongs and thepulley 101 is accommodated in-between the two prongs of thehead section 1021. The rotatable connection between thehead section 1021 and thepulley 10 may be achieved using theconnection member 105. Theconnection member 105 may be aconnection pin 105 extending through the centre of thepulley 101 and the prongs of thehead section 1021. Thepulley receiving part 102 further comprising theshaft section 1022. Theshaft section 1022 allows for the pulley device to achieve a rotatable connection around the second axis R2. Theshaft section 1022 comprises agroove section 1023 and anend section 1024. Thegroove section 1023 is configured for receiving thelocking clip 104 in a locking engagement. - In the embodiment shown on
Figs 7a to 7d , a surface of revolution created by rotating saidguide part 101 around the second axis R2 is an ellipsoid. The ellipsoid is created as a consequence of the second axis R2 intersecting a diameter of thepulley 101. In the shown embodiment the second axis R2 is perpendicular to the first axis R1 and intersects theguide part 101. - Further reference is made to
Figs 8a to 8d , which show views corresponding toFigs 7a to 7d , however where also thebearing 103 and thelocking clip 104 are shown. Thebearing 103 is seen connected to theshaft section 1022 of thepulley receiving part 102. Thebearing 103 is held in place on theshaft section 1022 by thelocking clip 104. Thelocking clip 104 is seen received within thegroove section 1023 of thepulley device 10. Thelocking clip 104 may engage thegroove section 1023 in a snap-lock engagement. - In the following, a method of bringing an external screening arrangement as described in the above from a supply condition to a mounted condition on the exterior side of a roof window with a window opening will be described in some detail. While the succession of steps described are preferred, variations may occur without departing from the scope of the invention, as defined by the appended claims.
- From the outset, the
roof window 2 is provided with aframe structure 3 and asash structure 4 extending in parallel to the roof surface, each with top 3a, 4a andbottom members parallel side members roof window 2 may be provided in combination with anexternal screening arrangement 1 as described herewith, or separately. - Thus, an
external screening arrangement 1 is provided in a supply condition, in which thescreening body 11 is connected to thebottom profile 15 and wound on theroller shaft 14 such that substantially the entire length of thescreening body 11 is accommodated in thetop casing 23. The at least oneguidance cord 12 of the cord system is positioned in the associatedside rail top casing 23 such that thetop casing 23 and the side rails 21, 22 are positioned substantially in parallel to each other to form a transportation package. The temporary connection may for instance be provided in the form of straps or more intricate devices. - In a first step, the
top casing 23 is rotatably connected to the top member of the frame of the roof window. - Secondly, the temporary connection of the side rails 21, 22 is released from the
top casing 23. - Then, the side rails 21, 22 are connected to the sash of the roof window by means of
fittings 6, following which the side rails 21, 22 are rigidly connected to thetop casing 23. - Following these operations, the mounted condition has been reached.
- Now, the installer or user proceeds to operating the
screening arrangement 1 and thus moving thebottom profile 15 towards a screening position such that thescreening body 11 is unwound from theroller shaft 14 and the at least oneguidance cord 12 is wound on the winding device, thereby allowing thereturn element 10 to assume a correct operating position. Any hassle of the guidance cord or cords due to involuntary twisting of the side rails during mounting will automatically be dissolved during this first use. -
- 1
- screening arrangement
- 2
- roof window
- 3
- frame structure
3a top frame member
3b side frame member
3c side frame member
3d bottom frame member - 4
- sash structure
4a top sash member
4b side sash member
4c side sash member
4d bottom sash member - 5
- hinge
- 6
- fitting
- 7
- pane
- 10
- return element / pulley device
101 pulley
1011 grooved rim
102 pulley receiving part
1021 head section
1022 shaft section
1023 groove section
1024 end section
103 bearing
104 locking clip
105 connection member - 11
- screening body
- 12
- guidance cord
- 13
- tensioning device
131 spring device - 14
- roller shaft
- 15
- bottom profile
151 guide track - 21
- first side rail
- 22
- second side rail
221 track - 23
- top casing
231 solar panel
232 cover portion
233 end portion
234 top casing hinge - 24
- corner cap
240 cap element
245 stationary element
2451 aperture - R1
- first axis
- R2
- second axis
- W1
- winding direction
- W2
- unwinding direction
Claims (14)
- An external screening arrangement (1) configured to assume a mounted condition on a roof window (2), the roof window having a window opening, a frame structure (3) and a sash structure (4) extending in parallel to the roof surface, each with top (3a, 4a) and bottom members (3d, 4d) and two mutually parallel side members (3b, 3c, 4b, 4d), where the screening arrangement (1) comprises:a screening body (11) having two side edges and a predefined length between a first end portion and a second end portion, said screening body (11) being movable, in the mounted condition of the screening arrangement, in a longitudinal direction between a non-screening position and a number of screening positions in which the screening body (11) at least partially covers the window opening,a top casing (23) configured to be rotatably connected to or fixed to the roof window (2) and extend substantially in parallel with the top member of the frame in the mounted condition,a roller shaft (14) accommodated in the top casing (23) and connected to drive means, the drive means being configured to rotate the roller shaft (14) in a winding direction and an unwinding direction, the first end portion of the screening body (11) being connected to the roller shaft (14) such that the screening body (11) is wound on the roller shaft in the non-screening position,a winding device comprising at least one winding reel (16) in connection with the roller shaft (14),a bottom profile (15) extending substantially in parallel with the top casing (23) between two ends (150) and connected to the second end portion of the screening body (11),two side rails (21, 22) configured to extend substantially in parallel with a respective side member of the frame and sash structure in the mounted condition to guide at least the ends (150) of the bottom profile (15), each side rail being at a first end fixed to or rotatably connected to the top casing (23) and at a second end slidably and rotatably connected to the sash structure (4) by means of a fitting (6), in the mounted condition of the screening arrangement,a cord system including at least one guidance cord (12) having a first end in connection with the winding device and a second end in connection with the bottom profile (15),at least one return element (10) for the at least one guidance cord (12), positioned at or near a free end of at least one of the side rails (21, 22), such that the respective guidance cord (12) is guided from the winding device, around the associated return element (10) and up to the bottom profile (15), the at least one return element comprising a guide part (101) around which the respective guidance cord (12) is guided to provide a change of direction around a first axis (R1),a tensioning device (13) accommodated in the bottom profile (15) and comprising at least one spring device (131) for tensioning the at least one guidance cord (12) with a spring bias,characterised in thateach return element comprises a base part (102) connected to the guide part (101) and to the side rail (21, 22) in a rotational connection around a second axis (R2) to allow for both the base part (102) and the guide part (101) to rotate around the second axis (R2), andthat each said return element comprises a pulley device (10) in which- the guide part includes one pulley (101), where the pulley (101) is rotatable around said first axis (R1), and- the base part (102) includes a pulley receiving part (102), said pulley (101) being connected to the pulley receiving part (102) such that pulley (101) and the pulley receiving part (102) are rotatable around the second axis (R2), wherein the second axis (R2) is substantially perpendicular on the first axis (R1).
- An external screening arrangement according to claim 1, wherein the pulley receiving part (102) is rotatably connected to a stationary part (245) connected to the side rail (22) such that the second axis (R2) is substantially parallel to the longitudinal direction of the side rail (22).
- An external screening arrangement (1) according to claim 1 or 2, wherein the pulley device (10) further comprises a bearing (103) for facilitating rotation around the second axis (R2).
- An external screening arrangement (1) according to claim 3, wherein the pulley device (10) further comprises a locking clip (104), where the locking clip (104) locks the bearing (103) to the pulley receiving part (102).
- An external screening arrangement (1) according to claims 3 or 4, wherein the bearing (103) is received in the stationary part (245) connected to the side rail (22).
- An external screening arrangement (1) according to any of the preceding claims, wherein the least one side rail (21, 22) comprises a corner cap (24, 25), wherein the return element (10) is connected to said corner cap (24, 25).
- An external screening arrangement (1) according to any of the preceding claims, wherein the pulley (101) is a circular wheel with a grooved rim (1011) for accommodating the guidance cord (12).
- An external screening arrangement (1) according to any of the preceding claims, wherein the pulley receiving part (102) comprises a head section (1021) providing the rotatable connection to the pulley (101) around said first axis (R1), and a shaft section (1022) providing the rotatable connection around the second axis (R2).
- An external screening arrangement (1) according to claim 8, wherein the shaft section (1022) of the pulley receiving part (102) comprises a groove section (1023) and an end section (1024).
- An external screening arrangement (1) according to claims 4 and 9, wherein the locking clip (104) is received in the groove section (1023) of the shaft section (1022) of the pulley receiving part (102).
- An external screening arrangement according to claim 1, wherein a surface of revolution created by rotating said guide part (101) around the second axis (R2) is an ellipsoid.
- A method of bringing an external screening arrangement according to any one of the preceding claims from a supply condition to a mounted condition on the exterior side of a roof window with a window opening, a frame structure and a sash structure extending in parallel to the roof surface, each with top and bottom members and two mutually parallel side members, comprising the steps of:providing the screening arrangement in the supply condition, in which the screening body (11) is connected to the bottom profile (15) and wound on the roller shaft (14) such that substantially the entire length of the screening body (11) is accommodated in the top casing (23),connecting the top casing (23) rotatably or fixedly to the top member of the frame of the roof window,connecting the side rails (21, 22) to the sash of the roof window by means of fittings (6),fixedly or rotatably connecting the side rails (21, 22) to the top casing (23) to assume the mounted condition, andoperating the screening arrangement (1) and moving the bottom profile (15) towards a screening position such that the screening body (11) is unwound from the roller shaft (14) and the at least one guidance cord (12) is wound on the winding device, thereby allowing for both the base part (102) and the guide part (101) to rotate around the second axis (R2) to allow the return element (10) to assume a correct operating position in the mounted condition of the screening arrangement.
- The method of claim 12, wherein the step of providing the screening arrangement in the supply condition comprises connecting the at least one guidance cord (12) of the cord system to the associated side rail (21, 22), and connecting the side rails (21, 22) temporarily to the top casing (23) such that the top casing (23) and the side rails (21, 22) are positioned substantially in parallel to each other to form a transportation package, and wherein before the step of connecting the side rails (21, 22) to the top casing (23), the temporary connection of the side rails (21, 22) from the top casing (23) is released.
- A combination of an external screening arrangement (1) according to any one of the claims 1 to 11 and a roof window with a window opening, a frame structure and a sash structure configured to extend in parallel to the roof surface, each with top and bottom members and two mutually parallel side members.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA201970727 | 2019-11-25 | ||
PCT/DK2020/050330 WO2021104594A1 (en) | 2019-11-25 | 2020-11-24 | External screening arrangement with a self-adjusting return element |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3959409A1 EP3959409A1 (en) | 2022-03-02 |
EP3959409B1 true EP3959409B1 (en) | 2023-12-20 |
EP3959409C0 EP3959409C0 (en) | 2023-12-20 |
Family
ID=76128795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20816901.1A Active EP3959409B1 (en) | 2019-11-25 | 2020-11-24 | External screening arrangement with a self-adjusting return element |
Country Status (2)
Country | Link |
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EP (1) | EP3959409B1 (en) |
WO (1) | WO2021104594A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3520857A1 (en) * | 1985-06-11 | 1986-12-11 | Warema Renkhoff Gmbh & Co Kg, 8772 Marktheidenfeld | Sun canopy, which can be rolled up, for winter gardens or the like |
DE3524343A1 (en) * | 1985-07-08 | 1986-07-17 | Ernst 7129 Ilsfeld Zechmeister | PERGOLA AWNING |
EP1836371B1 (en) | 2005-01-11 | 2016-04-13 | VKR Holding A/S | A winding device for a cord guidance system of a screening device for the screening of a window |
ES2583760T3 (en) | 2010-05-31 | 2016-09-22 | Vkr Holding A/S | Roller shutter having an upper element adapted to receive one or more auxiliary elements, shield assembly comprising a roller blind of the mentioned type and one or more auxiliary elements, and method of manufacturing said shield assembly |
PL219780B1 (en) * | 2012-04-11 | 2015-07-31 | Fakro Pp Spółka Z Ograniczoną Odpowiedzialnością | The roller shutter assembly with guides, especially for the roof window, and the method of mounting the roller shutter assembly with guides |
EP3015637B1 (en) | 2014-10-29 | 2019-04-17 | VKR Holding A/S | Screening device for a roof window and method for mounting such a screening device on a roof window |
BE1023551B1 (en) * | 2015-10-30 | 2017-05-02 | Renson Sunprotection Screens N.V. | SCREEN DEVICE |
-
2020
- 2020-11-24 WO PCT/DK2020/050330 patent/WO2021104594A1/en unknown
- 2020-11-24 EP EP20816901.1A patent/EP3959409B1/en active Active
Also Published As
Publication number | Publication date |
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WO2021104594A1 (en) | 2021-06-03 |
EP3959409C0 (en) | 2023-12-20 |
EP3959409A1 (en) | 2022-03-02 |
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