DE102022118669A1 - Shielding arrangement with an improved clamping device - Google Patents

Abstract

In the shield assembly (1) for a skylight (2), a tensioning device (13) housed in the lower profile (15) includes a locking member (132) for engaging a locking cavity (141) in a side rail (22) of the shield assembly to prevent movement of the lower profile (15) with respect to at least one side rail (21, 42) of the first shielding position.

Description

technical field

The present invention relates to a shielding arrangement for a skylight, the skylight having a frame structure and a wing structure extending parallel to the roof surface, each having an upper and a lower member and two mutually parallel side members, the shielding arrangement having a shielding body with two side edges and a predefined length between a first end portion and a second end portion, an upper frame configured to extend substantially parallel to the upper member of the frame and wing structure, a winding shaft housed in the upper frame and having drive means is connected, the drive means being configured to rotate the winding shaft in a winding direction and an unwinding direction, the first end part of the shielding body being connected to the winding shaft such that in the non-shielding position the shielding body rests on d it is wound up on the winding shaft, a winding device comprising at least one winding spool connected to the winding shaft, a lower profile which extends substantially parallel to the upper frame between two ends and is connected to the second end part of the shielding body, two side rails extending substantially parallel to a respective side member of the frame and wing structure and configured to guide at least the ends of the lower profile, a cord system including at least one guide cord having a first end communicating with the winder and a second end communicating with the lower profile, at least one return member for the at least one leader line positioned at or near a free end of at least one of the side rails so that the respective leader line is removed from the winding device, to the associated feedback element u nd is guided up to the lower profile, and a tensioning device, which is accommodated in the lower profile and comprises at least one spring device for tensioning the at least one guide cord with a spring pretension.

State of the art

Screening assemblies positioned in front of windows to protect the window from direct sunlight when in the screened position are common. Typically, such a screening device also serves to provide privacy and security against burglary. The usual screening arrangement comprises a screen, usually in the form of a shading device or a light screen, such as a roller or pleated blind, or an awning or roller shutter. Such skylight screening assemblies are generally electrically controlled since their position is often inaccessible to a user. Being out of reach for manual handling imposes limitations on how a shield assembly can be placed. Typically, control of skylight shade assemblies is limited to up and down movement of the shade or shade. These options may not meet the needs of a user who wants additional privacy and security against intrusion.

Summary of the Invention

Against this background, it is therefore an object of the invention to provide a screening arrangement which can ensure additional privacy and security against intrusion.

These and other objects are achieved by a shielding arrangement of the type mentioned in the opening paragraph, which is further characterized in that at least one side rail comprises a locking cavity and the clamping device further comprises at least one locking member, the locking member extending perpendicularly to and between the mutually parallel side rails, wherein the locking member has a first end and a second end, and that the locking member is movable between an unlocked position and a locked position in the first shielding position such that the first end of the locking member is engageable with the locking cavity when the locking member is aligned with the locking cavity of the side rail to prevent movement of the lower profile with respect to at least one side rail.

Providing at least one side rail with a locking cavity enables a simple positive locking mechanism to be achieved through the at least one side rail and the locking member. This provides a simple mechanism that allows a user of the screening assembly to lock the screening assembly to provide additional privacy and security against intrusion. Positive locking ensures a snug fit between the tensioner and the side rail. If the screen ment body has been unwound to the first shielding position and the locking member has been allowed to engage the locking cavity of the side rail, the lower profile is efficiently prevented from being moved towards the upper frame of the shielding assembly. Since the positive locking mechanism is dependent on the alignment of the locking member with the locking cavity, it is ensured that locking can only occur when the shielding body is in the first shielding position. Thereby, the locking member does not hinder the winding and unwinding of the shielding body from the non-shielding position to the shielding position. Movement of the locking member between the locked and unlocked positions can be accomplished in a number of ways, e.g. by magnetic means, snap-fit engagement, mechanical push/pull or the like. Furthermore, a compact structure is obtained, which is particularly advantageous in that the space available in such a shielding arrangement is generally limited, this applies in particular to the lower profile.

By a locking cavity is meant any limited space or through hole that can accommodate the locking member.

Although the engagement between the locking member of the tendon and the locking cavity of the side rail could be activated in basically any suitable manner, it is presently preferred that when the shielding body is in the first shielding position, the drive means are configured to pull the leader line , thereby further tensioning the leader line and biasing the spring device, and thereby moving the locking member from the unlocked position to the locked position.
By allowing the lanyard to be tensioned further when the shield is in the first shielding position, a simple solution to moving the locking member from the unlocked position to the locked position is provided. This solution is advantageous in that no complicated additional means are required to move the locking member, instead it relies on the cord system itself for the movement of the locking member. Furthermore, in case a user is solely limited to controlling the rotation of the winding shaft, locking can be achieved by a user further rotating the winding shaft in the unwinding direction when the shielding body reaches the first shielding position. The additional rotation in the unwinding direction tensions the leader line, moving the locking member from the unlocked position to the locked position. In this way, a user, who is only limited to controlling the rotation of the winding shaft, can also lock the shielding body. Preloading the spring may involve compression or stretching depending on the configuration of the spring device.

In one embodiment, the locking member is biased into the unlocked position by the spring bias of the spring device.

Having the locking member biased to the unlocked position ensures that unintentional movement of the locking member is restricted. This limits unnecessary noise generated by the locking member colliding with the side rails during winding and unwinding. Furthermore, it is ensured that there is no accidental locking of the shielding body in the first shielding position.

In one embodiment, the spring device comprises at least one compression spring.

A compression spring imparts a limited amount of degrees of freedom since it only moves in one dimension, i. H. compression and tension. This makes working with compression springs easy as there is no need to consider rotational alignment of the spring. This is particularly advantageous in a shield assembly manufacturing process, as the rotational orientation of the spring does not need to be considered when installing it.

In one embodiment, the locking member is formed as a rod, with the first end and the second end of the locking member being opposite longitudinal ends of the rod.

By forming the locking member as a bar, a structurally rigid shape is achieved. Furthermore, a bar shape is a space-saving shape, allowing the jig to be made small.

Basically, the locking member can be connected to the tensioner in any suitable way that allows it to perform its locking function. In a currently preferred embodiment, the locking member is connected to the tensioning device by means of positive connection means. This ensures that the locking member is secure at all times connected to the jig to follow its movements.

In a further development of this embodiment, the connecting means comprises a loop on the locking member which is configured to be connected to a socket of the end member of the tensioner. In this way a reliable connection is achieved which at the same time is easy to assemble

Preferably, the spring means is received at one end on the socket of the end member of the tensioner, preferably in abutment with an abutment edge, and is held stationary at another end with respect to the lower profile. This ensures proper operation of the jig since the end member can then follow the movements of the jig at the free end of the jig.

In a further development of the presently preferred embodiment, the loop is provided at the second end of the rod-shaped locking member and one end of the spring device is received on the socket such that the loop of the locking member is held between the end member and the spring device. This ensures a mechanically simple and reliable solution to the desired positive engagement and ensures proper operation of the locking member. In one embodiment, the first end of the locking member is tapered, rounded, or any other converging shape.

A converging shape facilitates movement from an unlocked position to the locked position. Because the converging shape ensures this, even if the locking member and locking cavity are not properly aligned, movement from the unlocked position to the locked position is still possible.

In one embodiment, the first end of the locking member is configured to pass 5-20 mm into the locking cavity when moving from the unlocked to the locked position.

Allowing the locking member to pass a sufficient distance into the locking cavity ensures that a strong locking action is achieved. Furthermore, due to the positive locking function between the locking member and the locking cavity, a strong locking effect can be achieved with only a short distance.

In one embodiment, the lower profile includes a side member, the side member including a locating cavity, the locating cavity being aligned with the locking cavity of the side rail when the shield body is in the first shielding position.

If the locking member has an elongated, longitudinal, or oval shape, there may be a risk of the locking member bending, making it difficult to align the locking member properly. The positioning cavity may act as a support ensuring that the locking member does not flex while at the same time ensuring that the locking member and locking cavity are aligned when the shield body is in the first shielding position.

In a further development of this embodiment, the other end of the spring device is received on a stub portion of the side member of the lower profile. Thus, the spring device can be held securely between the stub part of the side member of the lower profile and the socket of the end member of the tensioner. This is beneficial not least from a manufacturing perspective.

In one embodiment, the lower end of the side rails includes at least one corner cap, and the at least one corner cap includes the latch cavity.

When manufacturing the side rails, it can be cumbersome to manufacture the side rails with cavities, e.g. eg it may be the case that the side rails are made by extrusion. By providing the side rails with at least one corner cap, the side rails can be made without the locking cavity. The at least one corner cap can also serve as a stop for the side rails, thereby limiting the web in the side rails.

Although the foregoing discussion has not specifically discussed the possibility of two or more locking members, it should be apparent to the skilled reader that the possibility of two or more locking members is also within the scope of the invention. For example, it can easily be imagined that each of the side rails is provided with a locking cavity which can cooperate with a corresponding locking member.

Other presently preferred embodiments and other advantages will appear from the following the detailed description and the drawings.

character list

• 1a eine perspektivische Ansicht einer Abschirmungsanordnung bei einer Ausführungsform der Erfindung, wobei sich der Abschirmungskörper in einer abgewickelten Abschirmungsposition befindet;
• 1b eine Ansicht entsprechend 1a, wobei sich der Abschirmungskörper in einer aufgewickelten Nichtabschirmungsposition befindet;
• 2a ist eine perspektivische Ansicht eines Dachfensters mit einer Abschirmungsanordnung bei einer anderen Ausführungsform der Erfindung;
• 3a und 3b vereinfachte perspektivische Ansichten der Funktionsprinzipien eines Schnursystems, wobei sich ein Abschirmungskörper in einer abgewickelten Abschirmungsposition befindet;
• 4a eine teilweise perspektivische Schnittansicht in einem größeren Maßstab der linken oberen Ecke der Abschirmungsanordnung bei einer Ausführungsform der Erfindung;
• 4b eine teilweise perspektivische Ansicht von Details der Abschirmungsanordnung von 2a;
• 5 eine teilweise perspektivische Schnittansicht in einem größeren Maßstab der linken unteren Ecke der Abschirmungsanordnung der 1a und 1b;
• 6 eine perspektivische Ansicht der Spannvorrichtung der Abschirmungsanordnung bei einer Ausführungsform der Erfindung;
• 7 eine perspektivische Explosionsdarstellung der Spannvorrichtung von 6 aus einem anderen Winkel;
• 8a eine Endansicht der Spannvorrichtung von 6, in der sich ein Verriegelungsglied der Spannvorrichtung in einer entriegelten Position befindet;
• 8b eine Endansicht der Spannvorrichtung von 6, in der sich ein Verriegelungsglied der Spannvorrichtung in einer verriegelten Position befindet;
• 9 eine perspektivische Ansicht einer Eckkappe in einem größeren Maßstab bei einer Ausführungsform der Erfindung; und
• 10 eine teilweise als Schnitt ausgeführte Endansicht einer Spannvorrichtung bei einer Ausführungsform der Erfindung, wobei die Spannvorrichtung mit der Eckkappe von 9 in Eingriff steht.

For purposes of illustration, the invention will be described in more detail below with reference to embodiments thereof illustrated in the accompanying drawings, in which: show in the drawings:

• 1a Figure 14 is a perspective view of a shield assembly in one embodiment of the invention, with the shield body in a deployed shielding position;
• 1b a view accordingly 1a wherein the shielding body is in a coiled, non-shielding position;
• 2a Figure 12 is a perspective view of a skylight with a shield assembly in another embodiment of the invention;
• 3a and 3b simplified perspective views of the principles of operation of a cord system with a shield body in a deployed shielding position;
• 4a Fig. 12 shows a partially perspective sectional view on a larger scale of the upper left corner of the shield arrangement in an embodiment of the invention;
• 4b FIG. 12 is a partial perspective view of details of the shield assembly of FIG 2a ;
• 5 Fig. 12 is a partially perspective sectional view on a larger scale of the lower left corner of the shield assembly of Fig 1a and 1b ;
• 6 a perspective view of the clamping device of the shield assembly in an embodiment of the invention;
• 7 an exploded perspective view of the clamping device of 6 from a different angle;
• 8a an end view of the tensioner of FIG 6 , in which a locking member of the clamping device is in an unlocked position;
• 8b an end view of the tensioner of FIG 6 12 in which a locking member of the tensioner is in a locked position;
• 9 Figure 12 shows a larger-scale perspective view of a corner cap in an embodiment of the invention; and
• 10 12 is an end view, partially in section, of a jig in one embodiment of the invention, the jig having the corner cap of FIG 9 is engaged.

Description of the embodiments

In the following detailed description, preferred embodiments of the present invention are described. However, it should be understood that unless specifically stated otherwise, features of the various embodiments are interchangeable between embodiments and can be combined in various ways. Furthermore, it should be noted that, for the sake of clarity, the dimensions of certain components shown in the drawings may differ from the corresponding dimensions in real-world implementations.

It should be noted that terms such as "up", "down", "left", "right", "outer", "inner", "outer ', 'inside' are relative and refer to the point of view in question.

Figures 1a and 1b

Initially on the 1a and 1b 11, in which perspective views of a shield assembly 1 in an embodiment of the invention are shown, it can be seen how the shield assembly 1 comprises a shield body 11, an upper frame 23 and a lower profile 15.

The shielding arrangement 1 is configured to be attached to a skylight 2 (see FIG 2a) to assume an assembled condition in which the shielding body 11 is movable in a generally longitudinal direction between a non-shielding position and a number of shielding positions in which the shielding body 11 at least partially covers an opening of the skylight 2.

Furthermore, the shielding arrangement 1 comprises a winding shaft 14 ( 3a and 3b) housed in the upper frame 23 and connected to drive means, the drive means being configured to rotate the winding shaft 14 in a winding direction W1 and an unwinding direction W2 (see Fig 3a and 3b) to turn.

The shielding body 11 has two side edges and a predefined length between a first end part and a second end part. The first end part is connected to the winding shaft 14 accommodated in the upper frame 23 so that the shielding body 11 can be wound on the winding shaft 14 in the non-shielding position. The second end part is connected to a lower profile 15 .

The shielding arrangement further comprises two side rails 21, 22, a first side rail 21 and a second side rail 22, for guiding at least opposite ends of the lower profile 15. In some embodiments, the side edges of the shielding body 11 can also be guided in the side rails 21,22. The term "ends" of the lower profile 15 should be construed to encompass any structure of the lower profile 15 suitable for interacting with the side rails 21, 22, including separate elements and unitary configurations.

In 1a the shielding body 11 is shown in an unrolled shielding position, and in 1b the shielding body is shown in a non-shielding position in which the shielding body 11 is wound and supported on the winding shaft 14 in the upper frame 23. In the non-shielding position, the lower profile 15 can either be fully housed within the upper shield 23 or protrude slightly therefrom.

Figure 2a

The shield assembly 1 is configured for mounting on the outside of the skylight 2, which in turn is typically mounted in a sloping roof surface (not shown). The skylight 2 has a frame structure 3 and a wing structure 4 . The frame structure 3 is configured to extend parallel to the roof surface, while the wing structure 4 is configured to be positioned in a variety of positions, such as in 2a shown to be opened. The frame structure 3 and the wing structure 4 each have an upper member 3a, 4a and a lower member 3d, 4d and two mutually parallel side members 3b, 3c, 4b, 4c. The wing structure 4 is pivotally connected to the frame structure 3 via hinges 5, in the embodiment shown here at a substantially central hinge axis, but other positions of the hinge axis are also possible. In 2a a pane 7 framed in the wing structure 4 can also be seen.

In order to allow the screen assembly 1 to follow the movement of the wing structure when the roof window 2 is opened, the side rails 21, 22 are connected to the wing structure 4 in a slidable and pivotable connection at or near the lower end of the wing structure 4. The upper framing 23 may be either pivotally or fixedly connected to the skylight 2 at or near the top of the frame structure 3 . The connection between the top frame 23 and the side rails 41, 22 is either fixed, i.e. the side rails 21, 22 are rigidly connected to the top frame, or pivoting, i.e. there is a hinge connection (not shown) between the top frame 23 and the side rails 21,22. Prior art examples of a skylight with a shield assembly are disclosed in the embodiments of the applications EP 3 015 637 A1 and EP 2 390 455 A1 shown.

In 2a A bracket 6 is generally indicated to show the slidable pivotal connection between the lower corners of the wing structure 4 defined by the lower wing member 4d and the side wing members 4c, 4b and the first side rail 21 and the second side rail 22 respectively. The fittings 6 allow the wing structure 3 to be guided along the side rails 21, 22 when the wing structure 4 is pivoted about its hinge axis when the roof window 2 is opened.

In an embodiment of 2a the upper frame 23 comprises a slightly curved covering part 232 and an end part 233 at each of the longitudinal ends of the upper frame 23. Furthermore, in the upper frame 23 a solar panel 231 is placed, which could be used to power the shielding arrangement 1, where Als possibly connected to a battery within the upper frame 23; However, energy can also be provided by a main supply of the house. Wiring, motor controls and drive means for the nut are not shown. The upper framing 23 is rotatably connected to the frame structure 3 of the skylight 2 with a framing upper hinge 234 . The side rails 21, 22 are rigidly, ie fixedly, connected to the upper frame 23 at respective first fixed ends so that the side rails 21, 22 cannot pivot out of the plane defined by the roof surface and frame structure.

Figures 3a and 3b

Now onto the 3a and 3b , referring to the principle of operation and the possible configurations of a cord system 1 show embodiments of the shielding arrangement 1 according to the invention, two guide cords 12 are provided in order to ensure parallel guidance of the lower profile 15 during the operation of the shielding arrangement 1.

Each guide cord 12 is connected at one end to a respective winding device having a winding spool 16 and at another end to a tensioning device, generally designated 13, in the lower profile 15. The configuration of such winding coils is well known per se, an example being given in the embodiment of FIG WO 2006/074653 Applicant can be found. It should be noted that the term "in the lower profile" should be interpreted in its broadest sense and thus includes positions at or near a wall of the lower profile, such as behind a front wall of an open profile.

The leader cords 12 are wound on the winder in the opposite direction to how the shielding body 11 is wound on the winding shaft 14, i. That is, when the winding shaft 14 rotates in the winding direction W1, the shielding body 11 is wound up while the leader cords 12 are unwound, and vice versa when the winding shaft 14 rotates in the unwinding direction. The winding device having the winding spool 16 and the winding shaft are both accommodated in the upper frame 23 .

Basically, the winding spools 16 should unwind/wind up a length of the guide cord 12 that is substantially equal to the length of the shielding body 11 wound/unwound by the winding shaft 14 when the lower profile 15 is in the general longitudinal direction of the shielding assembly 1, as indicated by the Shield body 11 and the side rails a 20, 22 defined, is moved. Due to variations in the effective diameter of the winding shaft caused by successive windings of the shielding body 11 depending on the amount of the shielding body 11 wound on the winding shaft 14, the guide cords 12 become loose, thereby impairing the parallel guiding function. To accommodate slack in the guide cords 12, the tensioner 13 provides tension on the guide cords 12 to accommodate variations in the required length of the guide cords 12 during operation.

At the in 3a shown configuration, the winding coil 16 is arranged at one end of the winding shaft 14. However, the winding coil 16 can also be arranged inside the winding shaft 14, as in FIG 3b is shown, so that the winding coil 14 and thus also the shielding body 11 are possibly made wider, or two winding coils, one at each end of the winding shaft 14.

Furthermore, in the general overviews of 3a and 3b Return elements 10 for guiding the respective guide cord 12 from the winding spool 16 around the associated return element 10 and up to and into the lower profile 15 and on 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 return or upward part of the leader line 12 is fed alongside the downward part of the leader line 12 from the winding spool 16 to the return element 10 runs. The upwardly directed portion of the guide cord 12 may run in the same path of the respective side rail 21, 22 as the downwardly directed portion of the guide cord 12, in the embodiment shown in one and the same path 221 (see Figures of the specific embodiments) of the side rail 22

In the embodiments shown, the shield assembly comprises an outer shield assembly having a substantially flat shield body also known as an armor as seen in the unfolded shield position, but the concept is also applicable to other forms of tuning such as awnings, external shades, shutters of various types of slats etc. applicable.

Figures 4a and 4b

Details of the top rim 23 in the embodiment shown are provided in FIGS 4a and 4b shown. The first end portion of the shielding body 11 is connected to the winding shaft 14 housed in the upper frame 23 . At the end of the winding shaft 14, the winding device having a winding coil 16 is provided. A similar winding device can be provided at the opposite end of the winding shaft 14 . In a manner known per se, the winding spool 16 serves to house the guide cord 12 forming part of the cord system, to serve as a parallel guide arrangement of the shielding arrangement, keeping the lower profile 15 substantially parallel to the upper frame 23 throughout operation hold.

Figures 5 to 10

Now up 5 Referring to Figure 11, a partially perspective sectional view on a larger scale of the lower left corner An embodiment of the shielding arrangement of the shielding arrangement 1 is shown, the guide cord 12 is connected to the tensioning device 13 in the lower profile 15 at the second end part of the shielding body 11 . There may be two clamps 13 near the ends 150 of the lower profile 15, only one clamp 13 being described below, the other may be of the same, but mirror-inverted, configuration or include variations. The tensioning device 13 comprises a spring device 131 which is configured for tensioning guide cords 12 . Depending on the tensioning device 13, the connection between the tensioning device 13 and the guide cords 12 can either compress or stretch the spring device 131 away from its equilibrium position, this depends on which end the spring device 131 is fixed to the tensioning device 13, like the guide cord 12 is connected to the tensioning device 13, and on the configuration of the spring device 131. The spring device 131 tensions the leader line 12 by applying a spring force to the equilibrium position of the spring device 131.

In the embodiment shown, the second side rail 22 is shown to include a cap 24. The corner cap 24 provides a natural stop for the track 221 defined by the second side rail 22. FIG. Although the corner cap 24 is described with reference to the second side rail 22, it is also within the scope of the invention for both side rails 21, 22 to be provided with a corner cap 24, 25 or for only the first side rail 21 to be provided with a separate corner cap 24. The corner cap 24 includes a cap member 240 and a stationary member 245 . The feedback element 10 may be a rotating feedback element, such as a pulley, or a non-rotating feedback element. The guide cord 12 travels from the corner cap 24 up to and into the lower profile 15 and thus to the tensioner 13. The guide cord 12 can be guided by a pulley in the lower profile 15 from the corner cap 24, an example of such a pulley 136 in 7 will be shown. As in 5 As shown, the guide cord 12 is guided through a track formed in the lower profile 15. The tensioning device 13 includes a second pulley 137. The second pulley 137 is placed at one end of the spring device 131. As shown in FIG. The guide cord 12 is wound around the second pulley 137 and then fixedly connected to the lower profile 15 of the second end part of the shielding body 11 .

When the shielding body 11 is at the first shielding position, the lower profile 15 is prevented from being moved any further since it has reached the end position. Further rotation of the winding shaft 14 in the unwinding direction results in the guide cord 12 being wound up, while the lower profile 15 is not moved any further. This results in the guide cord 12 being tensioned, resulting in a pre-tension, here a compressive force, which is delivered to the second pulley 137, resulting in the spring device 131 being compressed.

It will now open 6 Referring now to FIG. 1, there is shown a perspective view of the fixture 13 of the shield assembly 1 in one embodiment of the invention. The tensioning device 13 comprises a locking member 132. The locking member 132 is here formed as a rod, ie as an elongate element with a substantially uniform cross-section, which can be circular, polygonal, oval, etc., for example. The locking member includes a first end 133 and a second end 134. The first end 133 of the locking member 132 is tapered and convergent. In the embodiment shown, the first end 133 and the second end 134 form opposite longitudinal ends of the rod-shaped locking member 132.

The tensioning device 13 further comprises an end member 130. In the embodiment shown, the lower profile 15 comprises a side member 151 which is provided with a positioning cavity 152. Side member 151 includes positioning cavity 152. Positioning cavity 152 is aligned with locking member 132 and configured to receive first end 133 of locking member 132 such that first end 133 is guided by positioning cavity 152 to cause translational movement of locking member 132 allow.

It will now open 7 Reference is made, in which an exploded perspective view of the clamping device 13 of 5 will be shown. The locking member 132 is attached to the spring device 131 via positive connection means. The connecting means is in the form of a loop 138 on the locking member 132 configured to attach a bushing 139 of the end member 130 of the tensioner 13 . The tensioning device 13 also includes a first pulley 136 which serves the purpose of properly aligning the guide cord 12 with the spring device 131 . In addition, goes out 7 also shows that the lower profile 15 has a stub portion 153 . The spring device 131 is at one end 131a at the Bushing 139 of end member 130 is received to abut against an abutment edge 1301 and is received at the other end 131b against the stub portion 153 of lower profile 15. As shown, the loop 138 is provided at the second end 134 of the rod-shaped locking member 132 and one end 131a of the spring device 131 is received on the socket 139 so that the loop 138 is held between the end member 130 and the spring device 131 . Another detail shown is an alignment element 135.

During the operation of the shielding device 1, i. H. Unwinding and winding up the shielding body 11, the locking member 132 follows the movement of the spring device 131 of the tensioning device 13 in response to the tensioning or relaxation of the spring device 131. The path of movement of the spring device 131 and thus the locking member 132 depends on several factors, including the length of the shielding body 11, the diameter of the winding shaft 14, the core values of the spring devices, and so on. In the embodiment shown, the maximum movement is about 40 to 50 mm. Depending on the length of the shielding body 11, the deformation of the spring device 131 can be in the range of 30 to 100 mm or even more.

It will be on the 8a and 8b Reference is made, in which side views of the clamping device 13 of 5 with the locking member 132 in an unlocked position and in a locked position, respectively. When the locking member 132 is in the unlocked position, as in FIG 8a As shown, the spring device 131 is compressed by the guide cord 12 so that the locking member 132 is biased away from the locked position. The movement from the unlocked position to the locked position only occurs when the shielding body 11 has reached the first shielding position and the lower profile 15 cannot be moved any further. Since the lower profile 15 cannot move any further, further rotation of the winding shaft 14 in the unwinding direction results in the guide cord 12 being wound further on the winding spool 16, resulting in the guide cord 12 being tensioned. The tensioning of the guide cord 12 is due to the fact that the first end of the guide cord 12 is firmly connected to the winding spool 16 and in turn to the winding shaft 14 and the second end of the guide cord 12 is connected to the tensioning device 13 in the lower profile 15 . Therefore, if the lower profile 15 cannot be moved any further while the guide cord 12 is further wound, a tightening of the guide cord 12 is achieved. Further tensioning of the guide cord 12 results in compression of the spring device 131. Compressing the spring device 131 causes the locking member 132 connected to the spring device 131 to be moved from the unlocked position to the locked position to engage with a provided in the side rail 22 Locking cavity to engage, as will be described in more detail below.

It will now open 9 Referring now to FIG. 1, there is shown a perspective view of a corner cap 24 of the side rail 22 of the shield assembly 1 in one embodiment of the invention. The corner cap forms the end of the side rail 22 and can act to limit the path 121 defined by the side rail 22 in the longitudinal direction of the side rail 22 . Corner cap 24 includes a locking cavity 241 for interacting with locking member 132 of jig 13. Locking cavity 241 may be a through hole or a hollowed space in corner cap 24. The locking cavity 241 is configured to engage the first end 133 of the locking member 132 , thereby forming a positive fit with the locking member 132 . The corner cap 24 is also provided with an opening 242 . Opening 142 is configured to receive jig 13 .

Finally gets on 10 Referring now to FIG. 1, the details of the interaction between the jig 13 and the corner cap 24 in one embodiment of the invention are shown. The locking member 131 of the tensioner 13 is shown here engaged with the locking cavity 241 of the corner cap (although the position of the locking cavity 241 in Fig 9 cannot be seen clearly). In the locked position, the first end 133 of the locking member 131 engages the locking cavity 241. The engagement between the locking member 132 and the locking cavity 242 locks the lower profile 15 in position, preventing the lower profile 15 from moving toward the upper Frame 23 moves. The locking member 132 can thus translate to ensure that the first end 131 is securely positioned in the locking cavity 241 to obtain the positive engagement that provides the locking effect. The distance covered can be selected according to the dimensions of the components of the shielding arrangement 1, in particular the side rails 21, 22 having the corner cap 24. The distance during the locking action is significantly smaller than during the actuation of the shielding arrangement 1, which involves unwinding and winding up the shielding body 11. Typical distances are in the range of 5 to 15 mm have proven to provide safe engagement.

When the lower profile 15 is to be unlocked again, the engagement between the locking member 132 and the locking cavity becomes 141 by rotating the winding shaft 14 in the opposite winding direction W1 and thereby providing a sufficient length of the guide cord 12 to allow the spring device 131 to relax and thereby moving the locking member 132 to the unlocked position and out of the locking cavity 241.

The lower profile 15 is now free to move, allowing the shielding body 11 to wind up on the winding shaft 14 and the lower profile 15 to move upwards along the path 121 defined by the side rails 21,42.

Specific embodiments of the invention have now been described. However, several alternatives are possible, which would be apparent to those skilled in the art.

Such and other obvious modifications are to be considered as falling within the scope of the present invention as defined by the appended claims.

Reference List

1

shielding arrangement

2

skylight

3

frame structure

3a

upper frame member

3b

side frame member

3c

side frame member

3d

lower frame member

4

wing structure

4a

upper wing member

4b

side wing link

4c

side wing link

4d

lower wing member

5

hinge

6

fitting

7

disc

10

feedback element

11

shield body

12

guide cord

13

clamping device

130

side link

1301

attachment edge

131

spring device

131a

one end of the spring device

131b

other end of the spring device

132

locking link

133

first end

134

second end

135

alignment elements

136

first pulley

137

second pulley

138

loop

139

Rifle

14

winding shaft

15

Lower Profile

150

end of the lower profile

151

page element

152

positioning cavity

153

stump part

16

winding coil

21

First side rail

22

Second side rail

221

Rail

23

upper case

231

solar panel

232

cover part

233

end part

234

upper case hinge

24

corner cap

240

map element

241

locking cavity

242

opening

25

corner cap

w1

winding direction

W2

unwind direction

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• EP 3015637 A1 [0038]
• EP 2390455 A1 [0038]
• WO 2006074653 [0042]

Claims (14)

Screen arrangement (1) for a roof window (2), the roof window (2) having a window opening, a frame structure (3) and a wing structure (4) extending parallel to the roof surface, each having an upper (3a, 4a) and a bottom (3d, 4d) member and two mutually parallel side members (3b, 3c, 4b, 4c), the shield assembly (1) comprising: a shield body (11) having two side edges and a predefined length between a first end portion and a second end portion, wherein the shielding body (11) is movable in a longitudinal direction between a non-shielding position and a first shielding position in which the shielding body (11) substantially covers the window opening, an upper frame (23) configured to to extend substantially parallel to the upper member of the frame and wing structure, a winding shaft (14) housed in the upper frame (23) and connected to drive means, the drive means being configured to rotate the winding shaft (14) in a winding direction and an unwinding direction, the first end portion of the shielding body (11) being connected to the winding shaft (14) such that the shielding body (11) in the non-shielding position on the winding shaft, a winding device comprising at least one winding spool (16) communicating with the winding shaft (14) comprises a lower profile (15) extending substantially parallel to the upper frame (23) extending between two ends (150) and connected to the second end portion of the shielding body (11), two side rails (21, 22) extending substantially parallel to a respective side member of the frame and wing structure and configured to at least the To lead ends (150) of the lower profile (15), a cord system, the at least one guide cord (12) having a first end with connected to the winding device, and a second end connected to the lower profile (15), at least one return element (10) for the at least one guide cord (12), located at or near a free end of at least one of the side rails (21, 22) is positioned so that the respective guide cord (12) is guided from the winding device, around the associated return element (10) and up to the lower profile (15), and a tensioning device (13) arranged in the is housed in the lower profile (15) and comprises at least one spring device (131) for tensioning the at least one guide cord (12) with a spring pretension, characterized in that at least one side rail (21, 22) comprises a locking cavity (241) and the tensioning device ( 13) further comprises at least one locking member (132), wherein the locking member (132) extends perpendicularly to and between the mutually parallel side rails (21, 22). kt, wherein the locking member (132) has a first end (133) and a second end (134), and that the locking member (132) is movable between an unlocked position and a locked position in the first shielding position such that the first end (133) of the locking member (132) can be brought into engagement with the locking cavity (141) when the locking member (132) is aligned with the locking cavity (241) of the side rail (21, 22) to prevent movement of the lower profile (15 ) with respect to at least one side rail (21, 22). Shielding arrangement (1) after claim 1 , wherein when the shielding body (11) is in the first shielding position, the drive means are configured to pull the at least one guide cord (12), thereby further tensioning the guide cord (12) and biasing the spring device (131), and whereby the locking member (132) is moved from the unlocked position to the locked position. Shielding arrangement (1) after claim 1 or 2 , wherein the locking member (132) is biased by the spring bias of the spring device (131) in the unlocked position. Shielding arrangement (1) according to any one of the preceding claims, wherein the spring device comprises at least one compression spring. A shield assembly (1) as claimed in any preceding claim, wherein the locking member (132) is formed as a rod, the first end (133) and the second end (134) of the locking member (132) being the opposite longitudinal ends of the rod. shielding arrangement claim 5 , wherein the locking member (132) is connected to the clamping device by means of positive connection means. shielding arrangement claim 6 wherein the connecting means comprises a loop (138) on the locking member (132) configured to mate with a socket (139) of the end element ments (130) of the clamping device (13) to be connected. shielding arrangement claim 7 , the spring device (131) being received at one end (131a) on the bushing (139) of the end element (130) of the tightening device, preferably in abutment against an abutment edge (1101) and at another end (131b) relative to the lower one Profile (15) is held stationary. Shielding arrangement (1) after claim 8 , wherein the loop (138) is provided at the second end (134) of the rod-shaped locking member (132) and the one end (131a) of the spring device (131) is received on the bushing (139) such that the loop (138) of the Locking member (132) is held between the end member (130) and the spring device (131). A shield assembly as claimed in any preceding claim, wherein the first end (133) of the locking member (132) is tapered, rounded or any other converging shape. The shield assembly of any preceding claim, wherein the first end (133) of the locking member (132) is configured to pass 5-20mm into the locking cavity (241) when moving from the unlocked to the locked position. Shielding arrangement (1) according to any one of the preceding claims, wherein the lower profile (15) comprises a side member (151), the side member (151) comprising a positioning cavity (152), the positioning cavity (152) being on the locking cavity (241) of the Side rail (21, 22) is aligned when the shielding body (1) is in the first shielding position. Shielding arrangement (1) after claim 12 , provided by claim 8 or 9 dependent, the other end (131b) of the spring device (131) being received on a stub portion (153) of the side member (151) of the lower profile (15). The shield assembly (1) of any preceding claim, wherein the lower end of the side rails (21, 22) includes at least one corner cap (24), and wherein the at least one corner cap (24) includes the latch cavity (241).

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