Protective device for a vehicle interior

Abstract

Protective device for a vehicle interior with a dimensionally stable support structure (5) for the rotatable mounting of a roller blind shaft (W), on which a flexible sheet-like structure (6) is held so as to be windable and unwindable, and with two lateral guide structures (3) which are arranged on opposite sides in a ready-to-use assembled state and are fixed to the vehicle, which are pivotally articulated on the support structure (5) between a mounting position pivoted towards the support structure (5) and an operating position pivoted outwards about a pivot axis (S), wherein the guide structures (3) on the one hand and the support structure (5) on the other hand are provided with blocking elements (15, 16; 15a to 15g, 16a to 16g;19, 21) are assigned, which are designed such that the guide structures (3) can be releasably locked relative to the support structure (5) in an intermediate position which is arranged between the assembly position and the operating position, characterized in that the blocking elements (15, 16; 15a to 15g, 16a to 16g) are arranged in the region of the pivot axes (S) of the lateral guide structures (3), and that at least one blocking element (15, 16; 15a to 15g, 16a to 16g) is arranged elastically yielding in order to enable blocking and release of the blocking elements (15, 16; 15a to 15g, 16a to 16g), and that the blocking elements (15, 16; 15a to 15g, 16a to 16g) are designed such that for a releasing the blocking elements (15, 16; 15a to 15g, 16a to 16g) from one another requires a greater expenditure of force than for blocking the blocking elements (15, 16; 15a to 15g, 16a to 16g) relative to one another;

Description

[0001] The invention relates to a protective device for a vehicle interior according to the preamble of claim 1.

[0002] Such a protective device is known from US 2012 / 0 048 483 A1. The protective device comprises a flexible sheet material that can be wound up and unwound on a roller blind shaft. The roller blind shaft is rotatably mounted in a dimensionally stable support structure that can be permanently mounted on the vehicle. Two guide rails are pivotally connected to opposite end faces of the support structure. In an installed position, these guide rails are pivoted towards the support structure and, in an operating position, are pivoted outwards at almost a right angle to the support structure. The guide rails serve to guide a dimensionally stable extension profile that is mounted on a front end area of ​​the flexible sheet material that is at the front in the extension direction. The guide rails can be releasably locked in an intermediate position relative to the support structure using blocking elements.

[0003] Another protective device is known from DE 10 2014 225 902 A1. The known protective device has a support structure in the form of a cassette housing in which a roller blind shaft is rotatably mounted. A flexible sheet material in the form of a shading strip is held on the roller blind shaft so that it can be wound up and unwound. The sheet material is connected at its front end region in the unwinding direction to a dimensionally stable extension profile, which can be moved on opposite end sides in guide profiles of lateral guide structures of the protective device between a rest position, in which the extension profile is positioned in the area of ​​the cassette housing when the sheet material is fully wound up, and an extended position, in which the extension profile has transferred the sheet material into a stretched-out shading position unwound from the roller blind shaft.The extension profile can be moved between the rest position and the extended position by a drive system in the guide profiles of the guide structures, which is equipped with a cable pull in the area of ​​each lateral guide structure. The two lateral guide structures are pivotally mounted in the area of ​​the cassette housing. They can be moved between an assembly position in which they are folded towards and fixed to the cassette housing and a functional position in which they are folded outwards at approximately a right angle to the cassette housing, in which the lateral guide structures are fixed to the corresponding interior trim components of the vehicle interior. The assembly position is intended for transporting the protective device and delivering it for installation in the vehicle interior.

[0004] The object of the invention is to provide a protective device of the type mentioned above which enables improved assembly of surrounding vehicle components in the motor vehicle.

[0005] This problem is solved by the features of claim 1. Fixing the lateral guide structures relative to the support structure in a partially pivoted intermediate position between the assembly position and the operating position allows for preparatory assembly measures such as adjustments, electrical connection measures, measures to be prepared on corresponding trim parts of the vehicle interior, and the like during assembly and commissioning of the protective device within the vehicle interior, without the guide structures getting in the way or swinging back and forth in an undesired manner. This significantly simplifies and improves commissioning of the protective device within the motor vehicle.The protective device according to the invention is particularly advantageously provided for shading a rear window of a passenger car and has a support structure in the form of an at least partially open support frame or in the form of an at least largely closed cassette housing. The support structure is preferably mounted in the region of a parcel shelf on the vehicle interior. The lateral guide structures can be fixed in the region of interior trim parts on C-body pillars that flank the rear window on the left and right - viewed in the vehicle's longitudinal direction. The parcel shelf is preferably provided with a passage slot that can be closed by a dimensionally stable extension profile of the flexible sheet material in the rest position of the sheet material, and through which the flexible sheet material can be extended upwards along an inner side of the rear window toward a roof lining.The flexible sheeting is advantageously formed by a shading web designed as a woven or knitted textile. In the assembled position, the lateral guide structures, which are pivotally mounted in the area of ​​opposite end faces of the support structure, are pivoted inward toward the support structure and are preferably also releasably fixed in this assembled position. In the operating position, the lateral guide structures protrude obliquely forward and upward approximately at right angles to a longitudinal extent of the support structure, in particular along a radial plane relative to a rotational axis of the roller blind shaft, so that the lateral guide structures extend along corresponding interior boundary sections of the vehicle interior. The blocking elements interact in a form-fitting or force-fitting manner.

[0006] According to the invention, the blocking elements are arranged in the region of the pivot axes of the lateral guide structures. The blocking elements, which are assigned to the support structure on the one hand and to the respective lateral guide structure on the other, are preferably arranged at a short distance from the pivot axes of the lateral guide structures and in particular in the immediate vicinity of corresponding pivot bearings for the lateral guide structures. The blocking elements can advantageously be integrally formed on a corresponding side section of the support structure on the one hand and a respective lateral guide structure on the other.

[0007] According to the invention, at least one blocking element is arranged to be elastically flexible to enable the blocking elements to be locked and released. The elastic flexibility consequently enables force-limited locking or release of the blocking elements. The elastic flexibility can be provided by elastically acting spring elements in the form of elastomer parts, metal springs, or the like. Alternatively, the elastic flexibility can be predetermined by a flexurally elastic design of a plastic support section of the lateral guide structure or the support structure that carries the corresponding blocking element. The force-limited locking is achieved by positive locking or force-locking, i.e., frictional locking.

[0008] According to the invention, the blocking elements are designed such that a greater force is required to release the blocking elements from one another than to lock them relative to one another. The blocking or unlocking of the blocking elements relative to one another is achieved by manually pivoting the lateral guide structures relative to the support structure. The described different force requirements when blocking and unlocking the blocking elements are preferably achieved by geometrically designing corresponding contact surfaces of the blocking elements, which come into contact with one another upon a corresponding relative pivoting movement of the respective lateral guide structure relative to the support structure. Alternatively, the different force requirements can be achieved by differently designed elastic spring elements.The different geometric design is to be understood in particular as a firm, positive fit of the blocking elements in the blocking position in relation to corresponding starting slopes when the blocking elements are transferred from a release position into the corresponding blocking position.

[0009] In one embodiment of the invention, the blocking elements are designed such that a holding force in the blocking position is greater than a release force generated by the dead weight of the guide structure in the intermediate position. This design is advantageous to prevent the dead weight of the respective lateral guide structure from generating a torque in the area of ​​the pivot axis that is so great that the blocking elements slide out of their blocking position without manual intervention.

[0010] In a further embodiment of the invention, at least one blocking element is movably mounted. The blocking element can be designed to be rotatably movable, linearly movable, or movable by being arranged on a bending beam.

[0011] In a further embodiment of the invention, the blocking elements interact in a form-fitting manner. This means that the blocking elements inevitably engage one another in a form-fitting manner during a relative pivoting movement between the respective lateral guide structure and the support structure. The form-fitting action is force-limited in order to enable both blocking, in this case locking, and release by a manual pivoting movement of the respective lateral guide structure relative to the stationary support structure. The force-limited form-fitting action is selected such that it can be manually released by an operator pivoting the guide structure.

[0012] In a further embodiment of the invention, the locking elements interact in a force-locking manner. In the intermediate position, a frictional engagement occurs between the locking elements, i.e., a force-limited clamping of the locking elements relative to one another.

[0013] In a further embodiment of the invention, at least one blocking element is designed as a support lever, which is pivotally mounted on the lateral guide structure or on the support structure and has a complementary blocking element designed as a counter-support on the support structure or the lateral guide structure, against which the support lever rests in the intermediate position. The support lever forms an extension arm, which is movably mounted between a rest position applied to the support structure or the lateral guide structure and an extended support position.

[0014] In a further embodiment of the invention, the lateral guide structures are additionally assigned a locking device for securing the guide structures in the assembly position on the support structure. This embodiment is known per se from DE 10 2014 225 902 A1 and complements the inventive solution in that the lateral guide structures according to this embodiment can be fixed relative to the support structure not only in the described intermediate position, but also in the assembly position.

[0015] In a further embodiment of the invention, a cable pull system is provided for moving the flexible sheet material between a wound-up rest position and an unwound functional position, and each lateral guide structure has a guide profile along which a cable of the cable pull system runs, which remains on the guide profile regardless of the position of the lateral guide structure. The cable pull system is part of a drive system for moving the flexible sheet material. The flexible sheet material preferably has, at its front end region in the extension direction, a dimensionally stable extension profile which is guided for linear movement along the guide profiles of the lateral guide structures and which can be displaced between the rest position of the sheet material and the extended position of the sheet material by means of the cable pull system and an electric motor drive.Because the cable pull system is already installed in the lateral guide structures ready for operation upon delivery of the protective device, securing the lateral guide structures in the intermediate position is particularly advantageous. This is because the appropriate fixation of the lateral guide structures relative to the supporting structure prevents damage to the cable pull system during assembly, thus ensuring proper functioning of the cable pull system.

[0016] Further advantages and features of the invention emerge from the claims. Preferred embodiments of the invention are described below and illustrated with reference to the drawings. Fig. 1 shows a perspective view of an embodiment of a protective device according to the invention for a vehicle interior of a passenger car in the form of a shading device for a rear window of a passenger car including adjacent vehicle interior parts such as parcel shelf and side panels, Fig. 2 the protective device according to Fig. 1 omitting the parcel shelf and side panels in an extended position of a flexible surface structure, Fig. 3 the protective device according to Fig. 2 in a rest position of the flexible sheet and in an operating position of lateral guide structures of the protective device, Fig. 4 the protective device according to Fig. 3, in which the lateral guide structures are arranged in an assembly position, Fig. 5 the protective device according to Fig. 3 and Fig. 4 with the lateral guide structures fixed in an intermediate position, Fig. 6 the protective device according to Fig. 2 to 5 in a different perspective view diagonally from the front with the lateral guide structures moved into the operating position, Fig. 7 the protective device in the illustration according to Fig. 6, wherein the lateral guide structures are held in the intermediate position, Fig. 8 the protective device in the illustration according to the Fig. 6 and Fig. 7, wherein the lateral guide structures are pivoted into their assembly position, Fig. 9 in enlarged view a section IX in Fig. 6, Fig. 10 shows an enlarged section X from Fig. 7, Fig. 11 shows an enlarged section XI from Fig. 9, Fig. 12 to 31 show a schematic representation of a multitude of different designs of mutually complementary blocking elements which are used to secure the lateral guide structures relative to the support structure in the intermediate position according to Fig. 5 and Fig. 7 serve, Fig. 32 and Fig. 33 shows a schematic representation of two further embodiments of a protective device according to the invention, in which a fixing of the respective lateral guide structure relative to the support structure is provided by means of a support lever designed as an extension arm, which is either attached to the support structure ( Fig. 32) or on the lateral guide structure ( Fig. 33) is pivotally mounted, and Fig. 34 schematically analogous to the Fig. 12 to 31 a further design of mutually complementary blocking elements, which are used to secure the guide structures relative to the support structure in the intermediate position according to the Fig. 5 to 7 serve.

[0017] In Fig. 1 shows a rear section of a passenger car interior. Adjacent body parts such as C-pillars, a rear window or a roof area with a headliner, as well as body side panels and a rear seat bench of the vehicle interior are not shown for reasons of clarity. The vehicle interior has a parcel shelf 1a, 1b below the rear window (not shown) at approximately the height of a vehicle belt line. This parcel shelf is divided into a front parcel shelf section 1a and a rear parcel shelf section 1b—as seen in the normal direction of travel of the passenger car. The two parcel shelf sections 1a and 1b are dimensionally stable and are mounted securely to the vehicle.On opposite long sides of the vehicle interior, side panel parts 2 adjoin the parcel shelf sections 1a, 1b, which are each fastened to a body pillar section of the respective C-pillar of the vehicle body of the passenger car in a ready-to-use assembled state. The body sections are not shown for reasons of clarity. Between the front parcel shelf section 1a and the rear parcel shelf section 1b, a receiving gap extending in the transverse direction of the vehicle is provided. In the area of ​​this receiving gap, an extension profile 4 of a shading structure 6 (serving as a flexible sheet-like structure) is arranged in a rest position. Fig. 2) a shading device for the rear window. The shading device forms a protective device in the sense of the invention. The flexible shading structure 6 is mounted on a roller blind shaft W ( Fig. 10) is held in place so that it can be wound up and unwound. The extension profile 4 is attached to a front end area of ​​the flexible shading structure 6, which is at the front in the extension direction. The roller blind shaft W of the Fig. 1 to 11, is rotatably mounted in a supporting structure in the form of a cassette housing 5. The cassette housing 5 is fastened to the vehicle side below the parcel shelf 1a, 1b in the ready-to-use state. In the illustrated embodiment, the cassette housing 5 is directly connected to the two parcel shelf sections 1a and 1b. The flexible shading structure 6 is made of the Fig. 1 is pulled out diagonally forwards and upwards through the receiving gap between the parcel shelf sections 1a, 1b, so that the shading structure 6 in the extended functional position, ie in its shading position shading the rear window, is extended diagonally forwards and upwards along the rear window.

[0018] To guide the shading structure 6 between the rest position wound onto the roller blind shaft W and the fully extended functional position, the extension profile 4 is guided in guide profiles 8 of lateral guide structures 3 so that they can be moved parallel. The lateral guide structures 3 are in the assembled operating state ( Fig. 1 and Fig. 2) arranged fixed to the vehicle and connected to the side panel parts 2 and / or lateral body pillar sections of the C-pillars. Each guide profile 8 of the respective lateral guide structure 3 has a guide groove extending along the respective lateral guide structure 3, in which a guide glider is guided for linear movement, which is connected to a respective end face of the extension profile 4. To move the extension profile 4 between the rest position and the functional position of the shading structure 6, a drive system 7 is provided, which has an electric motor drive and a closed cable pull system. A cable pull 12 is laid in each lateral guide structure 3. The cable pull system has a cable pulley on each of the opposite end areas coaxial with a rotation axis of the roller blind shaft W, on which pulley the cable pull 12 is held so that it can be wound up and unwound.The cable pulleys are coupled to a rotational movement of the roller blind shaft W in order to cause the extension and retraction of the extension profile 4 together with the winding or unwinding process of the shading structure 6. The corresponding retraction and extension is controlled by the electric motor drive of the drive system 7. A winding spring associated with the roller blind shaft W, which rotates the roller blind shaft in the winding direction, is neither necessary nor provided.

[0019] The lateral guide structures 3 are mounted on opposite end areas of the cassette housing 5 so as to be pivotable about a pivot axis S between an assembly position pivoted towards the cassette housing 5, which also forms a transport position ( Fig. 4, Fig. 8 and Fig. 11), and an operating position ( Fig. 2, Fig. 3, Fig. 6 and Fig. 9), in which the lateral guide structures 3 protrude obliquely upwards and forwards—relative to a normal direction of travel of the passenger car—at least largely at right angles to a longitudinal extension of the cassette housing 5. A pivot bearing 9 is provided for pivotably mounting the respective lateral guide structure 3 on the corresponding front end region of the cassette housing 5.

[0020] The cable pull system of the drive system 7 forms a closed cable pull system that is fully assembled and installed within the respective lateral guide structure 3 within the shading device. The cable pull system is designed to accommodate pivoting movements of the lateral guide structures 3 between the assembly position and the operating position without being impaired in its function.

[0021] For delivery of the shading device for installation in the passenger car interior, the lateral guide structures 3 cannot be separated from the cassette housing 5. Instead, the shading device is delivered with the lateral guide structures 3 folded into their transport position and then installed in the vehicle. It has been shown that both the arrangement of the lateral guide structures 3 folded into the assembly position and fixed in place, as well as the positioning of the lateral guide structures 3 extended into the operating position, is disruptive during installation of the shading device in the vehicle. Thus, in addition to installing the shading device in the vehicle interior, it is also necessary to install other vehicle components, such as control units, antenna amplifiers, or the like.In order to allow easier access for such assembly work in the area of ​​the lateral body sections or the parcel shelf 1a, 1b, the invention assigns an intermediate position to the lateral guide structures 3, in which the lateral guide structures can be releasably fixed relative to the cassette housing 5. In this intermediate position, the shading structure 6 must be in its wound-up rest position, so that the extension profile 4 also rests against the cassette housing 5. For this purpose, the lateral guide structures 3 as well as corresponding lateral support sections 13 of the vehicle-mounted cassette housing 5 (. Fig. 9) are assigned complementary blocking elements 15, 16, which are positioned in the area of ​​the pivot bearing 9 and in the area of ​​the respective pivot axis S and are described in more detail below. The blocking elements 15, 16 are positively effective relative to each other, as will be explained in more detail below. Fig. 9 to 11, only the left side of the shading device - viewed in the normal direction of travel - with the corresponding left lateral guide structure 3 and the left support section 13 of the cassette housing 5 is described in more detail. The opposite right side is mirror-symmetrical to a vertical vehicle center longitudinal plane, but otherwise identical in design, so that to avoid repetition for the opposite side, the description of the Fig. 9 to 11.

[0022] As shown by the Fig. 3 to 8, in addition to the fixation of the lateral guide structures 3 in the intermediate position, which is explained in more detail below, the lateral guide structures 3 can also be releasably fixed in an assembly position in which the lateral guide structures 3 are folded inwards against a front side of the cassette housing 5. For this purpose, a locking device is provided for each lateral guide structure 3, which provides complementary locking elements 10, 11 on the respective lateral guide structure 3 and on the cassette housing 5 on the other hand. The locking by means of the locking elements 10, 11 corresponds in terms of function and structure to a locking device as described in DE 10 2014 225 902 A1. The locking elements 10 on the lateral guide structures 3 are provided on end regions of the lateral guide structures 3, which are positioned remote from the respective pivot axis S.

[0023] The respective lateral support section 13, which is fastened to a lateral end region of the cassette housing 5 by means of screw connections, has a support extension 14 which projects forward in the manner of a bending beam - relative to an assembled state of the cassette housing 5 within the vehicle interior. The support extension 14 is integrally formed on the support section 13, which is made of a thermoplastic material. The support extension 14 projects freely forward from the support section 13 in the manner of a bending beam and carries a cam-shaped, cylindrical-section-shaped blocking element 15 in the region of its upper side. The blocking element 15 is arranged at a short distance from the pivot axis S on the support extension 14. The support extension 14 is designed in such a way that it can deflect downwards in an elastically yielding manner, as shown schematically in the Fig. 20 and Fig. 21 is shown. The support extension 14 and the blocking element 15 are positioned below a complementary pivoting section of the lateral guide structure 3. This pivoting section of the lateral guide structure 3 is provided in the region of its underside with a further blocking element 16, which is integrally formed on the underside of the pivoting section of the lateral guide structure 3. The lateral guide structure 3 is also made of a thermoplastic. The blocking element 16 of the lateral guide structure 3 is positioned at the same radial distance from the pivot axis S of the lateral guide structure 3 as the blocking element 15 of the support extension 14 of the fixed support section 13. The two blocking elements 15 and 16 are positioned relative to one another in such a way that they overlap one another orthogonally to a common pivoting plane, which corresponds to a radial plane to the pivot axis S.During a pivoting movement of the lateral guide structure 3, the blocking elements 15 and 16 inevitably come into contact with one another. The blocking element 16 has an approximately semi-cylindrical blocking receptacle 17, the contour of which is matched to the semi-cylindrical outer contour of the blocking element 15 such that the blocking receptacle 17 and the blocking element 15 can engage one another without play. The blocking element 16 also has a run-on bevel 18 in both pivoting directions, i.e., on both sides of the blocking receptacle 17. The two run-on slopes 18 are designed in such a way that when the lateral guide structure 3 pivots relative to the cassette housing 5 - depending on the pivoting direction from the assembly position or from the operating position - they come into contact with the semi-cylindrical outer contour of the blocking element 15 and thereby force an elastic deflection of the support extension 14 and the blocking element 15 downwards.This inevitably causes the blocking receptacle 17 to snap onto the semi-cylindrical outer contour of the blocking element 15.

[0024] In a blocking position in which the blocking element 15 and the blocking receptacle 17 of the blocking element 16 engage with each other without play ( Fig. 10), the lateral guide structure 3 is fixed in an intermediate position, as Fig. 5 and Fig. 7 can be removed. The intermediate position aligns the lateral guide structures 3 at approximately 45° relative to the cassette housing 5, i.e. at an angle which corresponds at least largely to one half of the angle of the lateral guide structures 3 relative to the cassette housing 5 when the lateral guide structures 3 are folded out into their operating position. The angle of the respective lateral guide structure 3 in the intermediate position relative to the cassette housing 5 can also deviate from a 45° position. Preferably, angular ranges between 30° and 60° relative to the longitudinal extent of the cassette housing 5 and thus relative to a rotation axis of the roller blind shaft W are provided.

[0025] In order to transfer the lateral guide structures 3 from the assembly position or from the operating position to the intermediate position, a manual gripping and pivoting of the respective lateral guide structure 3 by an operator is required. Corresponding angles of the run-on slopes 18 relative to the pivoting plane and thus relative to the semi-cylindrical outer contour of the blocking element 15 in conjunction with the elastic restoring force of the support extension 14 are designed such that the sliding of the blocking receptacle 17 onto the blocking element 15 during a corresponding pivoting movement of the lateral guide structure 3 from the inside or from the outside requires less force than a manual release force as soon as the blocking receptacle 17 and the blocking element 15 are in their blocking position, as shown in Fig. 10 is shown.

[0026] The blocking force of the blocking elements 15, 16 in their blocking position, achieved by the semi-cylindrical contact contours, is also higher than the release force that can occur due to a torque generated by the dead weight of the respective lateral guide structure 3 in the intermediate position. This means that the blocking elements 16 and 15 are designed in such a way that automatic release due to the dead weight of the lateral guide structure 3 is prevented.

[0027] The respective lateral guide structure 3 is released from the intermediate position manually by an operator. By pivoting the lateral guide structure 3 inwards or outwards accordingly, the blocking element 15 is pressed downwards, whereby the support extension 14 deflects elastically downwards like a bending beam. In the illustrated embodiment, the lateral guide structure 3 itself is axially secured relative to the pivot axis S so that it cannot deflect axially along the pivot axis S. As soon as the blocking element 16 is free from the blocking element 15, the support extension 14 and the blocking element 15 pivot elastically back to their original position so that a new blocking process can be carried out in the corresponding intermediate position if necessary.

[0028] Based on the Fig. 12 to 19 and 22 to 31 schematically illustrate various modifications of the positive locking function for the locking elements 15 and 16 of the lateral guide structure 3 or the support extension of the support section of the cassette housing. The different embodiments are provided with the same reference numerals 15, 16, but with the addition of different letters a to g. All mutually complementary locking elements 15a to 15g, 16a to 16g can be used analogously to the locking elements 15, 16 in the shading device according to Fig. 1 to 11. The embodiment according to Fig. 12 corresponds largely to the embodiment according to the Fig. 2 to 11, wherein, however, corresponding support areas are curved coaxially to a pivot axis of the lateral guide structure relative to the cassette housing. In the embodiment according to Fig. 13, the blocking elements lie in a radial plane relative to the pivot axis, which is defined by a double arrow. While in the embodiment according to Fig. 12 the blocking elements are aligned orthogonally to the pivoting plane and overlap each other in the pivoting plane, the blocking elements 15b, 16b are according to Fig. 13 aligned coplanar to the pivot plane. Fig. 14 shows schematically a geometrically developed representation of the embodiment according to Fig. 12. At Fig. 15 shows the design of the blocking elements 15c and 16c compared to the embodiment according to Fig. 14 reversed. Otherwise, the blocking function is the same.

[0029] In the embodiment according to Fig. 16, the blocking elements 15d and 16d are not rounded or curved as in the embodiments according to the Fig. 12 to 15, but rather wedge-shaped. Here, too, external run-on bevels are provided with a flatter angle than wedge-shaped blocking surfaces, so that here, too, a release or unlocking force is greater than the force required to transfer the blocking elements 15d and 16d into the blocking position. In the embodiments according to the Fig. 17 to 19, rotatable blocking elements are provided which are designed like a wheel or a roller ( Fig. 17), in the manner of a rotating cam ( Fig. 18) or in the manner of an eccentric wheel or an eccentric roller ( Fig. 19).

[0030] As already explained, the schematic representation according to the Fig. 20 and Fig. 21 of the function of the blocking elements 15, 16 according to the embodiment according to the Fig. 2 to 11. The elastic flexibility of the support extension 14 is represented by a stylized spring F. The representation according to Fig. 22 takes over the representation of the Fig. 21 for the embodiment according to Fig. 15. In the embodiment according to Fig. 23, it is not the lower blocking element 15c but rather the upper blocking element 16c that is designed to be elastically flexible.

[0031] The stylized spring F in the embodiments according to the Fig. 21 to 23 symbolize not only a bending beam, but also a separate spring element, which can be designed as a compression spring acting on the corresponding blocking element 15c, 16c.

[0032] Alternatively, the stylized spring F can be Fig. 24 be designed as a tension spring, as Fig. 24 can be seen. Fig. 25 shows a further embodiment of an elastic compliance by a torsion spring F1 for the embodiment according to Fig. 14.

[0033] The Fig. 26 to 31 show further schematic designs for the blocking element pair according to Fig. 14. At Fig. 26 a disc spring package F2 is provided. Fig. 27 a leaf spring F3 is provided. Fig. 28 achieves the spring effect through a layered leaf spring F4. Fig. 29 uses a spiral spring F3. Fig. 30 sets a hydraulic spring F6 and Fig. 31 a pneumatic spring F7.

[0034] The only schematically illustrated embodiment according to Fig. 32 achieves the intermediate position for a respective lateral guide structure 3x relative to a cassette housing 5x serving as a support structure by means of a support lever 19 designed as an extension arm, which is pivotally connected to the cassette housing 5x by means of a pivot bearing 20 and has a counter support 21 on the lateral guide structure 3x. The lateral guide structure 3x is pivotally mounted relative to the cassette housing 5x by means of a pivot bearing 9x in the same way as in the embodiment according to the Fig. 2 to 11 is the case.

[0035] The embodiment according to Fig. 33 differs from the embodiment according to Fig. 32 in that a kinematic reversal of the support of the lateral guide structure 3x relative to the cassette housing 5x is provided by means of a support lever 19. In the embodiment according to Fig. 33, the support lever 19 is articulated by means of a pivot bearing 20 on the lateral guide structure 3x and is supported with its free end in the intermediate position on a counter support 21 which is fixedly arranged on the cassette housing 5x.

[0036] In both embodiments, the respective rest position of the support lever 19 is shown in dashed lines. The support lever 19 rests parallel either on the cassette housing 5x or on the lateral guide structure 3x. In this rest position, the support lever 19 can be manually releasably fixed to the lateral guide structure 3x or to the cassette housing 5x.

[0037] The embodiment according to Fig. 34 is analogous to the statements made in accordance with Fig. 12 to 31 alternatively for the shading device according to the Fig. 1 to 11. The main difference in the embodiment according to Fig. 34 is that the mutually complementary blocking elements 15h, 16h are not transferred into a force-limited clamping relative to each other in the intermediate position by means of a positive fit, but rather merely by means of a frictional fit. The corresponding force-limiting clamping action is achieved by the lower blocking element 15h being arranged analogously to the previously described modifications and analogously to the blocking element 15 according to the Fig. 1 to 11 elastically yielding downwards. In Fig.34 shows that the blocking element 15h is curved downwards in the manner of a bending beam under the enforcement of an elastic prestress. The upper blocking element 16h is pivotally movable relative to the lower blocking element 15h in the direction of the arrows, together with the associated lateral guide structure. The upper blocking element 16h has a downwardly projecting, spherical design with a friction contour R1. An upper side of the lower blocking element 15h facing this spherical contour forms a complementary friction surface R2. Upon a pivoting movement of the lateral guide structure relative to the support structure on which the lower blocking element 15h is held, the spherical friction contour R1 comes to bear laterally against the lower blocking element 15h in the region of the intermediate position of the lateral guide structure and, upon a further pivoting movement in the direction of the intermediate position, presses the lower blocking element 15h downwards in an elastically yielding manner.The corresponding frictional or force-locking connection between the friction surfaces defined by the friction contour R1 and the friction surface R2 forms the corresponding clamping effect in order to secure the lateral guide structure relative to the support structure in this intermediate position. Corresponding surfaces of the friction contour R1 on the one hand and the friction surface R2 on the other hand are advantageously provided with friction layers whose friction coefficients are coordinated to achieve the desired force-locking connection. It is also advantageous that only one of the two friction surfaces is provided with an additional friction layer, which interacts with the opposite friction surface, which directly represents a plastic material surface of the corresponding blocking element 15h, 16h.

Claims

[1] A protective device for a vehicle interior, comprising a dimensionally stable support structure (5) for rotatably supporting a roller blind shaft (W) on which a flexible sheet-like structure (6) is held so as to be wound up and unwound, and comprising two lateral guide structures (3) arranged on opposite sides in a ready-to-use state, fixed to the vehicle, which are pivotally connected to the support structure (5) between a mounting position pivoted toward the support structure (5) and an operating position pivoted outward about a respective pivot axis (S), wherein blocking elements (15, 16; 15a to 15g, 16a to 16g; 19, 21) cooperating in a blocking position are assigned to the guide structures (3) on the one hand and to the support structure (5) on the other hand, said blocking elements being designed such that the guide structures (3) can be releasably locked relative to the support structure (5) in an intermediate position arranged between the mounting position and the operating position,characterized by that the blocking elements (15, 16; 15a to 15g, 16a to 16g) are arranged in the region of the pivot axes (S) of the lateral guide structures (3), and that at least one blocking element (15, 16; 15a to 15g, 16a to 16g) is arranged elastically yielding in order to enable blocking and releasing of the blocking elements (15, 16; 15a to 15g, 16a to 16g), and that the blocking elements (15, 16; 15a to 15g, 16a to 16g) are designed in such a way that a greater expenditure of force is required to release the blocking elements (15, 16; 15a to 15g, 16a to 16g) from one another than to block the blocking elements (15, 16; 15a to 15g, 16a to 16g) relative to each other. [2] Protective device according to claim 1, characterized bythat the blocking elements (15, 16; 15a to 15g, 16a to 16g) are designed such that a holding force in the blocking position is greater than a release force generated by a dead weight of the guide structure (3) located in the intermediate position. [3] Protective device according to one of the preceding claims, characterized by that at least one blocking element (15, 16; 15a to 15g, 16a to 16g) is movably mounted. [4] Protective device according to one of the preceding claims, characterized by that the blocking elements (15, 16, 15a to 15g, 16a to 16g; 19, 21) interact in a form-fitting manner. [5] Protective device according to one of claims 1 to 3, characterized by that the blocking elements (15h, 16h) interact in a force-locking manner. [6] Protective device according to claim 1 or 4, characterized bythat at least one blocking element is designed as a support lever (19) which is pivotally mounted on the lateral guide structure (3x) or on the support structure (5x) and has a complementary blocking element designed as a counter support (21) on the support structure (5x) or the lateral guide structure (3x), on which blocking element the support lever (19) is supported in the intermediate position. [7] Protective device according to one of the preceding claims, characterized by that the lateral guide structures (3) are additionally assigned a locking device (10, 11) for securing the guide structures (3) in the assembly position on the support structure (5). [8] Protective device according to one of the preceding claims, characterized byin that a cable pull system is provided for displacing the flexible sheet-like structure (6) between a wound-up rest position and an unwound functional position, and in that each lateral guide structure (3) has a guide profile (8) along which a cable pull (12) of the cable pull system runs, which remains on the guide profile (8) regardless of the position of the lateral guide structure (3).

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