Roller blind assembly

By employing a motor-driven winding tube, parallel curtain guide, and tension line in the direct-drive roller blind assembly, combined with spring-type components and a control unit, the problem of increased inner diameter of the winding tube was solved, resulting in a smaller z-axis packaging size and stable curtain movement.

CN120840368APending Publication Date: 2025-10-28INALFA ROOF SYST GROUP
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Patent Information

Application Number
CN202510503341.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-04-25
Filing Date
2025-04-22
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

In existing direct-drive roller blind assemblies, increasing the inner diameter of the winding tube leads to an increase in the z-axis packaging size, making it impossible to effectively reduce the required z-axis packaging size.

Method used

The winding tube is directly driven by a motor, combined with parallel curtain guides and tension lines. Tension is provided by spring-type elements, eliminating the need for built-in spring components. The control unit monitors the winding tube speed to generate a stop signal.

Benefits of technology

The inner diameter of the winding tube was reduced, the Z-axis packaging size was decreased, while ensuring the synchronous movement and stability of the shroud, preventing slack in the shroud, and providing a cushioning effect for a smooth stop.

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Abstract

The invention relates to a roller blind assembly comprising a winding tube (22) configured to be directly driven by a motor (27), a roller blind (20) configured to be wound and unwound on one side on the winding tube (22) and having an operating beam (24) at the opposite side, and a pair of parallel roller blind guides (28) for guiding the roller blind (20). Wherein the rolling curtain (20) can be moved along the rolling curtain guide (28) between a closed position and an open position by driving the rolling tube (22). The assembly further comprises wire wheels (25, 25 ') on opposite outer ends of the winding tube (22), a spring-like element (31) having wheels (33, 33') arranged on each respective outer end, and a tensioning wire (30, 30 '), a first end of which is connected to one of the respective wire wheels (25, 25') and a second end of which is connected to the operating beam (24). The tensioning wire (30, 30 ') extends along the wheel (33, 33') of the spring element (31) such that the spring element (31) exerts tension on the tensioning wire (30, 30 ').
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Description

Technical Field

[0001] This invention relates to a roller blind assembly, and more particularly to a direct-drive roller blind assembly. Background Technology

[0002] Vehicles (such as passenger cars) may be equipped with a roof or roof system having one or more roof panels. The roof panels may be movable between a closed position and an open position to cover or expose roof openings, or one or more roof panels may be fixed. In either case, the one or more roof panels may be made of a transparent material to allow light into the vehicle's passenger compartment. To control the amount of light entering the vehicle, the vehicle may be equipped with a roller blind assembly comprising a rollo screen (i.e., a screen shield) movable between a closed position, an open position, and any position in between (partially closed or partially open). Movement of the rollo screen is achieved by winding or unwinding it on a winding tube or shaft. In the fully open position, the rollo screen is completely wound onto the winding tube. In the closed position, the screen shield is almost completely unwound from the winding tube. The roller blind assembly may also be referred to as a rollo assembly, and the screen shield may also be referred to as a rollo screen.

[0003] In existing roller blind assemblies, the blind is operated via motor-driven drive cables connected to the blind's operating beam via slippers. The operating beam, also known as a pull beam (as it may be used to pull the blind), or a front beam (due to its proximity to the front of the vehicle), moves the drive cables, which in turn move the drive shoes and the connected operating beam. Therefore, pulling the pull beam away from the winding tube causes the blind to unwind from the tube. Pulling the pull beam towards the winding tube allows the blind to wind onto the tube. For this purpose, the winding tube is typically equipped with a spring-loaded assembly to allow the blind to roll up when the roof opening is opened via the blind.

[0004] In another type of roller blind assembly, the movement of the blind is operated by a motor that directly drives the winding tube, rather than by driving slippers and connected tie beams. This type of roller blind assembly is called a direct-drive (DDR) roller blind assembly. Its winding tube eliminates the need for spring-loaded components, thus reducing the inner diameter of the winding tube and lowering the height (i.e., the z-axis packing dimension of the roller blind assembly). To ensure that the tie beams move in sync with the winding or unwinding of the blind, tension lines are incorporated within and connected to the tie beams, aligning the movement of the tie beams with the rotational movement of the winding tube and the associated movement of the blind. To ensure that these tension lines maintain tension, they are connected to each other via spring-loaded elements within the tie beams. This increases the required inner diameter of the tie beams, thereby increasing the required z-axis packing dimension. This offsets the reduction in z-axis packing dimension achieved by eliminating the spring-loaded elements in the winding tube.

[0005] Therefore, further improvements are needed to reduce the required z-axis packaging size. Summary of the Invention

[0006] The present invention aims to provide a direct-drive roller blind assembly to alleviate the above-mentioned defects.

[0007] On one hand, the present invention relates to a roller blind assembly comprising: a winding tube configured to be directly driven by a motor; a roller blind configured to be wound and unwound on the winding tube on one side and having an operating beam on the opposite side; and a pair of parallel roller blind guides for guiding the roller blind. The roller blind is movable along the roller blind guides between a closed position and an open position by driving the winding tube. The roller blind assembly further comprises: spools at opposite outer ends of the winding tube; a spring-type element having a line return element arranged on each respective outer end; and a tension line—the first end of which is connected to one of the respective spools and the second end of which is connected to the operating beam. The tension line extends along the line return element of the spring-type element, such that the spring-type element applies tension to the tension line.

[0008] On the other hand, the roller blind assembly of the present invention further includes at least two pairs of line guide elements for guiding each tension line drawn from one of the respective reels through or along the roller blind guide and via the respective line return element of the spring-type element toward the respective outer end of the operating beam.

[0009] In another aspect, the present invention relates to a roller blind assembly in which spring-loaded elements are arranged in front of the roller blind assembly.

[0010] In another aspect, the present invention relates to a roller blind assembly in which a spring-type element is arranged at the rear of the roller blind assembly and also at the front or rear of the winding tube.

[0011] In another aspect, the present invention relates to a disclosed roller blind assembly and further includes a control unit configured to: monitor operating parameters of the motor indicating the speed of the winding tube, detect whether the operating parameters exceed a threshold, and generate a trigger signal for stopping the motor from driving the winding tube when the threshold is detected to be exceeded.

[0012] In another aspect, the present invention relates to a roof and roller blind assembly for a vehicle, comprising: a roof assembly including a transparent and / or movable roof panel, and the roller blind assembly described above.

[0013] Specific embodiments of the invention are set forth in the dependent claims. Attached Figure Description

[0014] Further aspects, effects, and details of specific embodiments of the invention are described in the following detailed description of several exemplary embodiments with reference to the accompanying drawings.

[0015] Embodiments of this disclosure will be described by way of example with reference to the accompanying drawings, wherein:

[0016] [ Figure 1 This image shows a perspective view of the vehicle roof with an open roof assembly and a roller blind assembly.

[0017] [ Figure 2 [Showing the use of] Figure 1 A perspective view of an example of a roller blind assembly according to the present invention for a roof assembly;

[0018] [ Figure 3 [Illustrative illustration of the invention] Figure 2 An exploded view of the scroll assembly;

[0019] [ Figure 4 An exploded view schematically illustrates another embodiment of the roller blind assembly according to the present invention; and

[0020] [ Figure 5 An exploded view schematically illustrates another embodiment of the roller blind assembly according to the present invention. Detailed Implementation

[0021] In the following description, terms such as front, side, rear, or below, below and above, or forward and backward, as well as spatial references for driving movement, are in relation to the conventional orientation of the vehicle (e.g., a passenger car). Specifically, they are based on the driver's view from behind the steering wheel of the vehicle. Furthermore, the X, Y, and Z directions correspond to the vehicle's length, width, and height, respectively. In the diagram, the vehicle's forward direction of travel is indicated by arrow D1 pointing towards the front of the vehicle.

[0022] Figure 1 A vehicle roof with an open roof assembly 1 is shown. This open roof assembly 1 includes a movable panel 2a and a fixed panel 2b. The movable panel 2a can also be considered a closing member because it can move on the roof opening 3, thereby enabling the roof opening 3 to be opened and closed. A deflector 5 is provided at the front of the roof opening 3. A roller blind assembly 4 (i.e., a shutter assembly) is disposed below the roof, the roller blind assembly having a sunshade or shading curtain that can move between a closed position and an open position. This allows control over the amount of sunlight entering the vehicle through the roof opening 3 or the transparent panel 2a (in the case of the transparent panel 2a).

[0023] In the illustrated embodiment, the movable panel 2a can be in a closed position, in which it is positioned over the roof opening 3 and closes the roof opening; therefore, the movable panel is typically positioned within the surface of the vehicle roof 1. Furthermore, the movable panel 2a can be in an inclined position, where its rear end is raised compared to the closed position, while its front end remains in the closed position. Additionally, the movable panel 2a can be in an open position, where it slides open and the roof opening 3 is partially or fully exposed. In the open position, for example, both the rear and front ends of the movable panel can be raised compared to the closed position.

[0024] In other embodiments, instead of one or more movable panels, panels 2a and 2b may both be fixed or one panel may be fixed. In any of these embodiments, a roll-up assembly as described in more detail below may be implemented.

[0025] refer to Figure 2 and Figure 3 To show in more detail Figure 1 The scrolling component 4 in the middle. Figure 2 In the middle, the screen assembly 4 is in the assembled state and in the closed position. Figure 3 It shows Figure 2 An exploded view of the roll-up sunshade assembly. As shown, the roll-up assembly 4 can function as a sunshade component and can be installed below a movable roof panel 2a, or, for example, below both the movable roof panel 2a and the fixed roof panel 2b. In other embodiments, there may be a fixed transparent panel under which the roll-up assembly is installed. To install the roll-up assembly under one or more roof panels, the roll-up assembly can be connected to... Figure 1 The frame of the roof component 1, or the roll-up component, can also be an integrated part of the roof component 1.

[0026] The drape assembly 4 includes a drape 20 and a winding tube 22 rotatable about a fixed axis of rotation 23. The drape 20 extends substantially along a first direction D1 and is connected to an operating beam 24. The drape is connected to the winding tube 22 in the opposite second direction D2. The drape 20 can be wound and unwound on the winding tube 22. The winding tube 22 has spools 25, 25' at opposite outer ends, which rotate concentrically with the winding tube 22 about axis 23. Each spool 25, 25' may have a tubular support for mounting on the respective outer ends of the winding tube 22. At least one of the spools 25, 25' has a cavity into which the output shaft of the gearbox 26 can be releasably connected. The inner surface of the cavity and the outer surface of the output shaft mate to provide a form-locked connection. Conversely, it is also possible for a spool with a shaft to be coupled to a gearbox with a mating cavity. A motor 27 is configured to drive the rotation of the winding tube 22 via the gearbox 26.

[0027] The curtain assembly 4 also includes two parallel curtain guides 28, 28', two reversing wheels 29, 29', and two tension lines 30, 30' located on both sides of the curtain 20. Additionally, a pair of line return elements 33, 33' and a pair of line guide elements 34, 34' are provided, implemented in this embodiment as return wheels 33, 33' and guide wheels 34, 34', respectively. Each pair of elements is arranged on a corresponding side of the curtain assembly to guide the tension lines from the line pulleys 25, 25' to the operating beam 24. Each tension line 30, 30' is led out from one of the line pulleys 25, 25', reverses direction around one of the reversing wheels 29, 29', and passes through a corresponding one of each pair of return wheels 33, 33' and guide wheels 34, 34' towards the operating beam 24. For this purpose, the reversing wheels 29, 29' are attached to or at least close to the front end of the corresponding guide 28, 28'. Therefore, the reversing wheel can reverse the direction of the tension line from the spool toward the operating beam.

[0028] Typically, where appropriate, line guide elements can take the form of rotatable line guide elements, such as wheels or other elements having a shape such as a disc, or they can take the form of fixed line guide elements, such as grooves, slits, notches, or other shapes provided on or inside the guide element. Figure 3 In the example, the commutator wheels 29, 29' and the guide wheels 34, 34' are shown as separate elements, but they can also be integrated into a single element that provides both functions.

[0029] The first end of each tension line 30, 30' is attached to a corresponding spool 25, 25', allowing the tension line to be wound and unwound on the spools 25, 25'. The tension lines 30, 30' are guided by or at least extend through a parallel guide 28. Each spool 25, 25' to which the first end of the corresponding tension line 30, 30' is attached is also equipped with a helical groove, allowing the tension line 30, 30' to be wound and unwound in a controllable manner on the spools 25, 25'. These helical grooves are provided on the oblique portions of the spools 25, 25' and extend helically along the outer surface of the spools. The tension lines 30, 30' are interconnected via a spring element (here, a tension spring 31). This spring element 31 is arranged at the front of the curtain assembly 4. In this embodiment, the spring element 31 is positioned in front of the opening 3 relative to the x-direction, which is covered when the curtain is in the closed position. Therefore, the subassembly consisting of the rear frame component 6 and the curtain guides 128, 128' may also include the front frame support 8. The spring element 31 may be adjacent to, located at, or even within the front frame support 8. The spring element 31 is connected at each outer end to one of a pair of return pulleys 33, 33'. Thus, each tension line 130, 130', leading from one of the reels 25, 25', is guided through or along the corresponding curtain guides 128, 128', around one of the reversing pulleys 129, 129', toward the spring element 131 and the corresponding return pulley 33, 33' connected to the spring element. Each tension line then returns from the return pulleys 33, 33', via one of the guide pulleys 34, 34', toward and connects to the outer end of the operating beam 24.

[0030] In other embodiments, as further described below, the spring-type element may be located in other positions while keeping each tension line under tension. Regardless of its location, the spring-type element can also be implemented in various ways, such as a helical spring, a tension rubber component, or other elastic material capable of generating tension.

[0031] When moved from the closed position to the partially or fully open position, the curtain 20 is wound onto the winding tube 22 while the winding tube is rotated by the motor 27, and the tension lines 30, 30' are unwound from the spools 25, 25'. Therefore, the operating beam 24 is pulled along the curtain 20 wound on the winding tube 22 in the second direction D2 along the curtain guide 28.

[0032] When moving from the partially or fully open position to the closed position, the curtain 20 is unwound from the winding tube 22 as the winding tube is rotated by the motor 27, while the tension lines 30, 30' are wound onto the reels 25, 25'. The operating beam 24 is pulled along the curtain guide 25 in the first direction D1 by the tension lines 30, 30'.

[0033] Therefore, as the exposed surface of the curtain 20 shortens due to winding, the tension lines 30 and 30' extend as they are unwound from the reels 25 and 25'. Conversely, as the exposed surface of the curtain 20 extends due to unwinding, the tension lines 30 and 30' shorten as they are wound onto the reels 25 and 25'. The winding tube can be configured such that the clockwise direction of rotation of the winding tube is selected for either the closing or opening movement, while the direction of rotation for the opposite opening or closing movement will be counterclockwise.

[0034] Generally, it is understood that the spools are fixedly engaged with the winding tube in the direction of rotation. The spools can also move axially from the winding tube, for example, through multiple protrusions extending radially from components of the spools and into slots provided in the winding tube. This ensures that any rotational force applied via the spools is transmitted to the winding tube and vice versa, depending on the gearbox output shaft configuration. In a single-motor configuration, the torque of the gearbox output shaft can be transmitted directly to one of the spools, or alternatively, the gearbox output shaft can extend into the winding tube and engage directly with the winding tube, and indirectly with the spools. In either case, the tension line attached to the spool and the tension line on the opposite side of the winding tube are wound and unwound on the respective spools. Since the other side of the respective tension line is attached to a spring, located within or at least near the operating beam, the spring keeps the drape taut in any position the operating beam may be in, whether the drape is fully unwound or fully rolled up. To prevent drape slack, a reliable fixation between the winding tube and each spool must be ensured.

[0035] The roll-up assembly 4 also includes a frame component 6 for carrying the winding tube 22, reels 25, 25', gearbox 26, and motor 27, and for mounting the roll-up guide 28. The frame component 6 aligns the roll-up guide 28, the roll-up 20, and the winding tube before the assembly is installed on the vehicle roof, thus forming a sub-assembly. The frame component 6 may also include at least one roll-off edge 7 for supporting the fabric of the roll-up 20. Typically, the roll-off edge and operating beam are curved in the z-direction to correspond to the curvature of the vehicle roof. Therefore, the roll-off edge is positioned to shape and / or tension the fabric of the roll-up to follow the curvature of the roof. The positioning of the roll-off edge also takes into account that the diameter of the fabric on the winding tube decreases as the roll-up is wound or unwound from the winding tube, thus changing the angle at which the fabric runs on the roll-off edge. In some configurations, one or more additional roll-off edges may be implemented.

[0036] Control unit 11 is schematically shown and operatively coupled to drive motor 27. Control unit 11 can be any type of processing unit, whether software-controlled or dedicated, such as an ASIC, as is well known to those skilled in the art. Control unit 11 can be a standalone control unit, or it can be operatively coupled to another control unit, such as a multi-functional, universal vehicle control unit. In another embodiment, control unit 11 can be embedded in or as part of such a universal vehicle control unit. Essentially, control unit 11 can be implemented by any control unit suitable for, capable of, and configured to perform the operation of drive motor 27 and thus the operation of the movable winding tube assembly 4. Preferably, control unit 11 is configured to monitor operating parameters of the motor for indicating the speed of the winding tube and to detect whether such operating parameters exceed a threshold. It is further configured to generate a trigger signal to stop the motor from driving the winding tube when the threshold is detected.

[0037] exist Figure 4 and Figure 5 The image shows an exploded view of other direct-drive scroll (DDR) components. In these exploded views, [the image is] compared to... Figure 2 and Figure 3 Identical elements have the same or similar reference numerals. Figure 2 and Figure 3 The same applies to the arrangement and variations of these elements. The difference between these embodiments lies in the different configurations of tension wires 430 and 530, as well as spring elements 431 and 531, which will be described in detail below.

[0038] refer to Figure 4 and Figure 5 Each embodiment of the curtain assembly 44, 54 also includes a curtain 20 and a winding tube 22. The curtain 20 is also connected to the operating beam 24 and the winding tube 22, and can also be wound and unwound on the winding tube 22. The winding tube 22 has spools 25, 25' at opposite outer ends. At least one of the spools 25, 25' has a cavity into which the output shaft of the gearbox 26 can be releasably connected. The motor 27 drives the winding tube 22 to rotate via the gearbox 26.

[0039] Each embodiment of the roll-up assembly 44, 54 also includes a frame component 6 for carrying the winding tube 22 and the reels 25, 25', the gearbox 26 and the motor 27, and for mounting the roll-up guides (428, 428'; 528, 528'). The frame component 6 allows the roll-up guides, the roll-up 20 and the winding tube to be aligned before the assembly is installed on the vehicle roof, thus forming another sub-assembly. The frame component 6 also includes at least one roll-off edge 7 for supporting the fabric of the roll-up 20, similar to those described in detail above.

[0040] refer to Figure 4 Spring-type element 431 is arranged at the rear of the curtain assembly 44. Preferably, it is located below the roll-off edge 7 of the frame member 6 relative to the z-direction, and in front of the winding tube 22 relative to the x-direction. The curtain assembly 44 includes two reversing wheels 429, 429' and two tension lines 430, 430' located on corresponding sides of the curtain 20, respectively. In addition, a pair of line return elements 33, 33' and two pairs of line guide elements 34, 34', 35, 35', implemented here as wheels, are provided, each pair of elements being arranged on both sides of the curtain assembly to return the tension lines from the line wheels 25, 25' and guide them to the operating beam 24. Each outer end of the spring-type element 431 is connected to one of the return wheels in the pair of return wheels 33, 33'. Each tension line 430, 430' extending forward from one of the sheaves 25, 25' is guided toward the spring 431 and the corresponding return sheaves 33, 33' connected to the spring by passing around one of the guide sheaves 34, 34'. It then returns from the spring 431, passes around one of the guide sheaves 35, 35', and then passes through or along the corresponding curtain guide, passing around one of the reversing sheaves 429, 429' toward the operating beam 24.

[0041] refer to Figure 5A spring-type element 531 is arranged at the rear of the curtain assembly 54. In this embodiment, the spring-type element 531 is located behind the winding tube 22 relative to the x-direction. Relative to the z-direction, the spring-type element 531 may be located below the roll-off edge 7 of the frame member 6, or may be located below or inside the rear beam of the frame member 6. The curtain assembly 54 includes two reversing wheels 529, 529' and two tension lines 530, 530' on the respective sides of the curtain 20. A pair of line return elements 33, 33' and two pairs of line guide elements 34, 34', 35, 35' are provided, each element being implemented as a wheel, with the wheels in each pair arranged on the respective sides of the curtain assembly to guide the tension lines 530, 530' from the line wheels 25, 25' to the operating beam 24. Each outer end of the spring-type element 531 is connected to one of the return wheels in the pair of return wheels 33, 33'. Each tension line 530, 530' extends backward from one of the sheaves 25, 25', through one of the guide sheaves 34, 34', toward the spring 531 and the corresponding return sheaves 33, 33' connected to the spring. It then returns from the spring 531, passes around one of the guide sheaves 35, 35', and then passes through or along the corresponding curtain guide, around one of the reversing sheaves 529, 529', toward the operating beam 24.

[0042] Reference Figures 4 to 5 Each tension line 430, 430'; 530, 530' has one end attached to a corresponding spool 25, 25' for winding and unwinding. Each spool 25, 25' to which the first end of the corresponding tension line 30, 30' is attached is also equipped with a helical groove, allowing the tension line 30, 30' to be wound and unwound in a controllable manner. This helical groove is located on the inclined portion of the spool 25, 25' and extends helically along the outer surface of the spool. The other end (i.e., the second end) of each tension line 30, 30' is attached to the operating beam 24.

[0043] When moved from the closed position to the partially or fully open position, the curtain 20 is wound onto the winding tube 22 while the winding tube is rotated by the motor 27, and the tension lines 30, 30' are unwound from the reels 25, 25'. Therefore, the operating beam 24 is pulled along the curtain guide 28 in the second direction D2 by the curtain 20 being wound onto the winding tube 22.

[0044] When moving from the partially or fully open position to the closed position, the curtain 20 unwinds from the winding tube 22 as the winding tube is rotated by the motor 27, while the tension lines 430, 430'; 530, 530' are wound onto the reels 25, 25'. The operating beam 24 is pulled along the curtain guide 25 in the first direction D1 by the tension lines 430, 430'; 530, 530'.

[0045] Where appropriate, the line guide element can take the form of a rotatable line guide element, such as a wheel or other element having, for example, a disc shape, or it can take the form of a fixed line guide element, such as a groove, slit, notch, or other suitable shape. Figure 4 and Figure 5 In the example, line guide elements 34, 34' and 35, 35' are shown as separate elements, but they can also be integrated into a single element that provides both functions. For example, a cylindrical element with two separate circumferential grooves extending circumferentially along the surface of the cylindrical element. In this case, the element is preferably a fixed line guide element. The axis of the cylindrical element is preferably aligned with the z-direction.

[0046] exist Figures 3 to 5 In each embodiment, the spring-loaded element is positioned at a different location. This allows for greater design freedom and optimizes the space required for the roll-up assembly. For example, since the spring-loaded element is no longer located inside the operating beam, the operating beam can be constructed to be thinner or flatter compared to prior art embodiments.

[0047] In addition, refer to Figures 3 to 5 The arrangement of the tension line in each of the disclosed embodiments allows the tension line to be guided to some extent within a substantially horizontal plane. Therefore, the provided wheel can also be arranged in a substantially flat or disc-shaped form, since any change in the direction used to guide the line occurs primarily within such a horizontal plane.

[0048] As the tension line winds and unwinds from the spool, the angle at which the line leaves the spool and faces the first guide wheel changes. This angle change can occur simultaneously in both the z and y directions, especially with tapered spools having helical grooves. In embodiments where the tension line needs to enter the curtain guide directly, this requires maintaining a certain distance between the spool and the guide wheel to accommodate this angle change and to prevent the line from abrading and tearing against the edges or sides of the curtain guide. (Refer to...) Figure 4 and Figure 5 In the specifically disclosed embodiments, additional line guide elements alleviate this problem because these additional line guide elements allow the tension wire to have a more stable angle and / or path as it enters its respective retractable screen guide. That is, the angular variation of the tension wire as it approaches the screen guide is reduced. Therefore, the additional line guide elements allow for better alignment of the tension wire path with the corresponding screen guide.

[0049] Positioning the spring-loaded element outside the operating beam allows for greater design flexibility. This is particularly important when monitoring the speed of the winding tube. When the curtain moves in the closing direction and strikes the end of the curtain guide or the edge of the opening, the operating beam stops. If the motor and winding tube do not stop, the curtain may begin to sag. Due to the arrangement of the spring-loaded element, after the initial rather sudden impact, the spring absorbs some of the impact energy, resulting in a smoother deceleration. This means the motor speed does not immediately drop to zero but decreases gradually. Therefore, the spring-loaded element appears to provide a cushioning effect. This cushioning effect is easier to detect and can be used as a trigger signal to stop the motor-driven winding tube. Figures 3 to 5 The position of the spring-type element shown in the embodiment allows it to be designed to have a specific effect on the speed of the winding tube.

[0050] Specific embodiments of the invention are disclosed herein; however, it should be understood that the disclosed embodiments are merely illustrative examples of the invention, which can be implemented in various forms. Therefore, the specific construction and functional details disclosed herein should not be construed as limiting the invention, but rather as the basis for the claims and as an exemplary basis for teaching those skilled in the art to use the invention diversely in any suitable detailed constructions contemplated. In particular, features presented and described in the various dependent claims may be combined, and any advantageous combinations of these claims are disclosed herein.

[0051] Furthermore, the terminology and wording used herein are not intended to be limiting, but rather to provide a description for understanding the invention. The term "a" or "an" as used herein should be understood as "one or more". The term "multiple" as used herein should be understood as "two or more". The term "another" as used herein should be understood as "at least a second or more". The terms "comprising" and / or "having" as used herein should be understood as "including" (i.e., open-ended terms). The term "connection" as used herein should be understood as "connected, but not necessarily directly connected".

Claims

1. A roller shutter assembly (4) for a vehicle, the roller shutter assembly comprising: The winding tube (22) is configured to be directly driven by the motor (27); The curtain (20) is configured to be wound and unwound on a winding tube (22) on one side and has an operating beam (24) on the opposite side; A pair of parallel curtain guides (28) for guiding the curtain (20); By driving the winding tube (22), the curtain (20) can move between the closed position and the open position along the curtain guide (28); Thread spools (25, 25') are located at opposite outer ends of the winding tube (22); A spring-type element (31) having a wire return element (33, 33') arranged on each respective outer end; The tension line (30, 30') has its first end connected to a corresponding spool in the spools (25, 25') and its second end connected to the operating beam (24); The tension line (30, 30') extends along the line return element (33, 33') of the spring element (31) so that the spring element (31) applies tension to the tension line (30, 30').

2. The roller blind assembly according to claim 1, characterized in that, The roller blind assembly also includes: At least two pairs of line guide elements are provided for guiding each tension line drawn from a corresponding one of the line reels (25, 25') through or along the curtain guide, via the corresponding line return element (33, 33') of the spring-type element (31) toward the corresponding outer end of the operating beam (24).

3. The roller blind assembly according to claim 1 or 2, characterized in that, The roller blind assembly also includes a reversing wheel (29, 29') near the front end of each respective roller blind guide (28, 28') for reversing the tension line (30, 30') from the line reel (25, 25') toward the operating beam (24).

4. The roller blind assembly according to claim 1, characterized in that, The roller blind assembly also includes a frame component (6) arranged to carry the winding tube (22) and the reels (25, 25'), and the frame component has a roll-off edge (7).

5. The roller blind assembly according to claim 1, characterized in that, Spring-type element (31) is arranged at the front of the curtain assembly (4).

6. The roller blind assembly according to claim 1, Its features are, Spring-loaded elements (431, 531) are arranged at the rear of the curtain roll assembly (44, 54); and Further arrangements are as follows: In front of the winding tube (22); or Behind the winding tube (22).

7. The roller blind assembly according to claim 5, characterized in that, The spring-type elements (431, 531) are further arranged as follows: Below the rolled-off edge (7); or Above the rolled-off edge (7).

8. The roller blind assembly according to claim 3, characterized in that, The reversing wheels (29, 29') and line guide elements (34, 34') on the same side of the roll are set as separate elements or integrated elements.

9. The roller blind assembly according to claim 5 or 6, characterized in that, The line guide elements (34, 34'; 35, 35') on the same side of the roll are set as separate elements or integrated elements.

10. The roller blind assembly according to claim 7 or 8, characterized in that, The integrated component is a cylindrical component with two separate circumferential grooves extending circumferentially on the surface of the cylindrical component.

11. The roller blind assembly according to claim 1, characterized in that, The line guide elements (34, 34'; 35, 35') have a generally flat or disc-shaped shape; and The line guide elements (34, 34'; 35, 35') are arranged such that the tension line (30, 30') is guided in a substantially horizontal plane.

12. The roller blind assembly according to claim 1, characterized in that, The curtain guide (28) extends beyond the length of the curtain (20) when it is in the closed position.

13. The roller blind assembly according to claim 1, characterized in that, The roller blind assembly also includes: The control unit (11) is configured as follows: Monitor the operating parameters of the motor (27), which indicate the speed of the winding tube (22); Detect whether the operating parameters exceed the threshold; A trigger signal is generated to stop the motor (27) from driving the winding tube (22) when a threshold is detected.

14. A roof assembly and a roller blind assembly for a vehicle, the roof assembly and the roller blind assembly comprising: A roof assembly (1) comprising a transparent and / or movable roof panel (2a, 2b); Roller blind assembly (4, 44, 54) according to any one of the preceding claims.