CN112549920B

CN112549920B - Protective device for the interior of a motor vehicle

Info

Publication number: CN112549920B
Application number: CN202011025951.6A
Authority: CN
Inventors: G·伦茨
Original assignee: BOS GmbH and Co KG
Current assignee: BOS GmbH and Co KG
Priority date: 2019-09-26
Filing date: 2020-09-25
Publication date: 2022-09-30
Anticipated expiration: 2040-09-25
Also published as: DE102019214760A1; DE102019214760B4; CN112549920A

Abstract

The invention relates to a protective device for the interior of a motor vehicle. This protection device has: a reel; a flexible planar structure; the protective device comprises a pull-out profile which is guided displaceably in the pull-out direction on a guide arrangement fixed to the vehicle and has a cable pull system which is provided for the driven winding and/or unwinding of the flexible flat-shaped structure and is operatively connected to the pull-out profile and to the reel, wherein the cable pull system has a cable drum arranged coaxially to the reel and connected to the first support element for the transmission of a drive force in a torque-transmitting manner. According to the invention, the first bearing element and the second bearing element are axially inwardly displaceable relative to one another and are axially outwardly prestressed by means of at least one spring element, wherein the cable drum and the first bearing element are connected to one another by means of an axially releasable plug connection. The invention also relates to the use in a passenger car.

Description

Protective device for the interior of a motor vehicle

Technical Field

The invention relates to a protective device for the interior of a motor vehicle, comprising: a spool rotatably supported by means of a first support element and a second support element on a support receptacle fixed to the vehicle, the support receptacle being disposed opposite to the spool in an axial direction; a flexible planar structure windable and disengageable on a spool; a pull-out profile connected to an end region of the flexible flat-shaped structure, which is guided displaceably in the pull-out direction on a guide assembly fixed to the vehicle, and the protective device has a cable pulling system which is provided for the driven winding and/or unwinding of the flexible flat-shaped structure and is operatively connected to the pull-out profile and to the reel, wherein the cable pulling system has a cable drum arranged coaxially to the reel, which cable drum is connected to the first support element for transmitting the drive force in a torque-transmitting manner.

Background

Such a protective device is known from DE 102004049167 a1 and is provided in the form of a window blind for a vehicle window of a vehicle interior. The known protective device has a spool which is rotatably mounted by means of a first and a second bearing element on a bearing receptacle which is fixed to the vehicle and is arranged opposite the axial direction of the spool. In the known protective device, two bearing elements are formed on opposite end regions of a drive shaft extending through the winding shaft. A flexible flat-shaped article in the form of a roller blind web can be held on a winding shaft in a wound and unwound manner. Furthermore, a pull-out profile in the form of a pull rod is provided, which is fixedly connected to the flexible flat-shaped structure over its width and forms a pull-out roller blind web end. The pull-out profile is guided displaceably on the guide arrangement in the pull-out direction. A rope traction system is provided for the driven winding and/or unwinding of flexible flat-shaped structures from a reel. The rope traction system is operatively connected not only to the pull-out profile but also to the reel. In order to transmit the drive force of the rope traction system to the reel, a rope drum is arranged coaxially with the reel and is connected to the first bearing element in a torque-transmitting manner. In the known protective device, the winding shaft is mounted together with the cable drum in a fixed manner in the axial direction between the vehicle-side mounting receptacles, wherein the cable drum is mounted in a fixed manner on the first mounting element.

Disclosure of Invention

The object of the present invention is to provide a protective device of the type mentioned at the outset which can be assembled and repaired with little effort.

This object is achieved in that the first bearing element and the second bearing element are axially inwardly displaceable relative to one another and are axially outwardly prestressed by means of at least one spring element, wherein the cable drum and the first bearing element are connected to one another by means of an axially releasable plug connection. With the solution according to the invention, the winding shaft can be mounted and dismounted in a particularly simple manner between the bearing receptacles fixed to the vehicle and can be simultaneously connected to or released from the cable drum. For this purpose, according to the invention, the first and second support elements are axially inwardly displaceable relative to each other. In order to detach the reel from the bearing receptacle fixed to the vehicle, the bearing elements are therefore moved axially inward and thus toward one another. The axial distance between the first and second bearing elements is thereby reduced, as a result of which the reel can be removed between the bearing receptacles that are axially fixedly spaced apart from one another. According to the invention, the first bearing element and the second bearing element are axially biased outwards in the mounted state on the bearing receptacle by means of at least one spring element. This counteracts an unintentional axial relative displacement between the first and second bearing elements and thus also counteracts an unintentional release of the reel from the bearing receptacle. Since the cable drum and the first bearing element are connected in an axially releasable manner by means of the plug connection according to the invention, the reel can be connected to or released from the cable drum in a simple manner at the same time. In this way, the cable drum can be held in a rotationally fixed manner to the vehicle when the reel is removed, whereby in particular the releasing of the cable (Seilstrang) of the cable pulling system from the cable drum can be dispensed with. The first bearing element is connected to the winding shaft in a torque-transmitting manner. The first support element is preferably axially displaceable relative to the reel, while the second support element is preferably axially fixed relative to the reel, or vice versa. The bearing receptacles fixed to the vehicle are arranged on the end regions of the winding shaft opposite in the axial direction and are spaced apart from one another in an axially fixed manner. The cable drum is rotatably mounted in a vehicle-fixed manner in the ready-to-assemble state, wherein the first bearing element is preferably rotatably supported in a vehicle-fixed manner by means of the cable drum. An axially releasable plug connection is formed between the first bearing element and the cable drum and is designed to transmit torque for transmitting a drive force in the circumferential direction. For this purpose, the plug connection is preferably formed in a form-locking manner in the circumferential direction. For the outward axial pretensioning, at least one spring element can act on the first bearing element, the second bearing element and/or the reel. In order to release the reel from the bearing receptacle, the first bearing element and/or the second bearing element are axially displaced inwardly relative to the reel and against the pretensioning of the spring element.

In one embodiment of the invention, the winding shaft has a recess in which the at least one spring element is arranged and is operatively connected at one end to the first support element and at the other end to the winding shaft. The corresponding operative connection to the first support element or the reel can be designed indirectly or directly. A particularly space-saving configuration can be achieved by arranging the at least one spring element in the recess of the reel. The recess is preferably formed as a through-opening which extends through and coaxially to the longitudinal axis of the winding shaft.

In a further embodiment of the invention, the at least one spring element is formed in the form of a helical spring extending coaxially with the spool, which helical spring acts at least as a tension spring and/or as a compression spring. For the axial prestressing of the first and second bearing elements, the helical spring presses or pulls the first and/or second bearing element axially in the direction of the respective bearing receptacle fixed to the vehicle. Depending on whether the helical spring acts as a tension spring or as a compression spring, the helical spring is loaded in tension or in compression in order to remove the reel between the support receptacle fixed to the vehicle.

In a further embodiment of the invention, the first support element is supported in a rotationally sprung manner (drehgefedert) on the reel additionally in the circumferential direction by means of at least one spring element, so that the spring element additionally acts as a tensioning element for preloading the flexible flat structure between the reel and the pull-out profile. This is a particularly advantageous embodiment of the invention, since the at least one spring element obtains a particularly advantageous multiple function. Since, on the one hand, the spring element causes said axially outwardly directed pretensioning of the first bearing element relative to the second bearing element or relative to the reel. In addition, at least one spring element serves as a tensioning element for pretensioning the flexible flat-shaped structure in the pull-out direction. For this purpose, the first bearing element and thus the cable drum connected to the first bearing element in a torque-transmitting manner are also supported in a rotationally sprung manner on the winding shaft. In this case, the at least one spring element additionally acts as a torsion spring. The pretensioning by means of the at least one spring element or tensioning element prevents unintentional sagging of the flexible flat-shaped structure in the unwound state from the reel and at the same time compensates for possible play of the rope pulling system.

In a further embodiment of the invention, a locking mechanism is provided by means of which the first bearing element and the winding shaft can be locked in a rotationally fixed manner relative to one another and the at least one spring element can thus be releasably locked in a torsionally prestressed (auf torque vorspan) state. The locking mechanism is preferably activated only in the state of the reel being detached from the bearing receptacle fixed to the vehicle and thus also from the cable drum. In the activated state, the at least one spring element is torsionally prestressed and is fixed in the prestressed state by means of a locking mechanism. In the state of the winding shaft supported on the bearing receptacle and connected to the cable drum, the locking mechanism is preferably deactivated. In the deactivated state, the winding shaft and the first bearing element are supported and pretensioned relative to one another in a rotationally sprung manner in the circumferential direction by the at least one spring element. In other words, this spring-loaded support is bridged in the activated state of the locking mechanism, so that a rotationally rigid connection is produced between the first bearing element and the reel.

In a further embodiment of the invention, the locking mechanism can be displaced by means of an axial relative displacement between the first bearing element and the second bearing element between a locking state, in which the spring element is locked with a torsional pretension, and a release state, in which the spring element is released. The locking mechanism is activated in the locked state. In the released state, the locking mechanism is deactivated. In this embodiment of the invention, the displacement of the locking mechanism between the two states is dependent on the axial relative displacement between the first bearing element and the second bearing element and is therefore carried out automatically in a particularly advantageous manner with the assembly and/or disassembly of the reel from the bearing receptacle or the rope drum. In the axially inwardly directed relative displacement, the locking mechanism is preferably displaced from the locked state into the released state. Conversely, the locking mechanism preferably shifts from the released state into the locked state upon an axially outwardly directed relative displacement. This embodiment of the invention makes it possible to automatically release the torsional pretensioning of the at least one spring element when the reel is assembled and to transmit it to the flexible flat-shaped structure and thus also to the cable traction system. This makes it possible to dispense with a separate and manually complicated prestressing of the flexible flat-shaped structure or of the cable traction system after the assembly of the reel.

In a further embodiment of the invention, the locking mechanism is biased in the direction of the locked state by means of at least one spring element. This is a particularly advantageous embodiment of the invention, since the at least one spring element obtains a particularly advantageous multiple function. The at least one spring element is additionally used to drivingly displace the locking mechanism from the released state into the locked state. At the same time, the at least one spring element counteracts an unintentional displacement of the locking mechanism from the locked state into the released state. For prestressing the locking mechanism, the at least one spring element preferably acts as a tension spring and/or a compression spring.

In a further embodiment of the invention, a locking mechanism is provided which blocks an axial relative displacement between the first and second bearing elements, thereby locking the reel in the axial direction between the bearing receptacles fixed to the vehicle. The locking mechanism acts on the reel in a force-locking and/or form-locking manner. This prevents an unintentional axial relative displacement between the first bearing element and the second bearing element and thus prevents an unintentional release of the winding shaft from the bearing receptacle and/or the cable drum.

In a further embodiment of the invention, the locking mechanism has at least one locking spring which acts axially on the end region of the reel between the bearing receptacles for locking the reel. The locking spring is preferably mounted in a rotationally fixed manner and is arranged axially spaced apart from the end region of the winding shaft, in order to avoid unintentional friction losses, while forming an air gap that is small compared to the remaining dimensions of the winding shaft. In the event of an unintentional axial displacement of the reel, the locking spring acts force-and/or form-fittingly on the end region of the reel, so that a further axial displacement of the reel is made more difficult by the action of the locking spring or, depending on the pretensioning of the locking spring, is completely prevented.

In a further embodiment of the invention, the locking mechanism can be displaced by means of a displacement of the pull-out profile in the pull-out direction between an activated state, in which the reel is locked in the axial direction by means of the locking mechanism, and a deactivated state, in which the reel is released in the axial direction. By means of this embodiment of the invention, a particularly manual actuation of the locking mechanism for shifting between the activated state and the deactivated state can be dispensed with. Instead, the stop mechanism can be controlled at least indirectly by means of a displacement of the pull-out profile in the pull-out direction and thus along the guide assembly. For this purpose, at least one position of the pull-out profile along the guide assembly is provided, in which the pull-out profile interacts with the latching means, preferably in a form-locking manner, so that the latching means is displaced into the deactivated state. If the latching means has at least one latching spring, the latching spring is actuated against its spring force in the deactivated state of the latching means, preferably as a result of the mechanical action of the pull-out profile. In the deactivated state, the reel is released in the axial direction and can therefore be removed between the bearing receptacles and can be released if the axial plug connection is separated from the rope drum. In contrast, the locking mechanism in the activated state prevents a release of the plug connection between the cable drum and the first bearing element.

In a further embodiment of the invention, the pull-out profile has at least one retaining element which is arranged outside in the longitudinal direction of the pull-out profile and which is releasably retained on the sliding element, wherein the sliding element is guided in a guide channel of the guide assembly in a slidably movable manner, and wherein the cable pulling system acts on the sliding element at one end. In this embodiment of the invention, the cable traction system is operatively connected to the pull-out profile indirectly, i.e. via a sliding element. By means of the releasable connection between the retaining element and the sliding element, the cable pull system can be held in operative connection with the sliding element when the pull-out profile is detached from the guide assembly. This makes it possible to disassemble and assemble the protective device in a simplified manner. At least one outer retaining element is preferably releasably held on the sliding element in a form-fitting manner in the pull-out direction. For this purpose, the retaining element can have a corresponding contour (profiling) which, for retaining on the sliding element, cooperates in a form-fitting manner with a complementary mating contour formed on the sliding element.

In a further embodiment of the invention, a service position of the pull-out profile is provided, in which the pull-out profile is displaced into the region of the wall recess of the guide channel and can be removed from the guide channel through the wall recess for releasing the slide element, wherein the holding element is held unreleasably on the slide element by means of the guide channel next to the service position. This embodiment of the invention allows a simplified assembly and/or disassembly. The wall recess is preferably oriented perpendicularly to the pull-out direction and forms a partially defined opening of the guide channel, through which the holding element can be inserted into the guide channel for holding on the sliding element and can be removed from the guide channel for releasing the holding element. Next to the wall recess, the retaining element is held in the guide channel in a form-fitting manner perpendicular to the pull-out direction. Accordingly, the pull-out profile can be detached from the guide arrangement without damage only after being displaced into the maintenance position in this embodiment.

In a further embodiment of the invention, a stop element is provided which is releasably fastened to the guide assembly and which prevents an unintentional displacement of the retaining element into the region of the wall recess. The stop element preferably projects perpendicularly into the cross section of the guide channel and thus positively limits the mobility of the sliding element and thus of the holding element, which mobility is provided in the pull-out direction. In order to remove the pull-out profile from the guide assembly, the stop element must first be released. Subsequently, the pull-out profile can be displaced-beyond the position of the stop element-into the maintenance position and thus into the region of the wall recess.

In a further embodiment of the invention, the locking mechanism has an actuating section which, for deactivating the locking mechanism, is actuated in the maintenance position by means of the pull-out profile and/or the sliding element and is not actuated next to the maintenance position. As long as the locking mechanism has a locking spring, the actuating section is preferably formed directly on the locking spring. In the maintenance position, the pull-out profile and/or the sliding element interacts with the actuating section in a form-fitting manner, whereby the locking mechanism is deactivated and the reel is released with regard to its axial mobility relative to the bearing receptacle and the cable drum.

Drawings

Further advantages and features of the invention emerge from the claims and from the following description of a preferred embodiment of the invention, which is illustrated by means of the drawings.

Fig. 1 shows, in a schematic perspective view, an embodiment of a protective device according to the invention, in the form of a screening device for an interior space of a motor vehicle,

figure 2 shows the protective device according to figure 1 in a detail view in section in the region of the reeling shaft,

figure 3 shows the protective device according to figures 1 and 2 in a further enlarged detail view in section in the region of the left end of the reeling shaft,

figure 4 shows the protection according to figures 1 to 3 in the region of the right end of the reeling shaft in a view corresponding to figure 3,

figure 5 shows the protective device according to figures 1 to 4 in a cutaway and enlarged top view in the region of the rope drum for the driven displacement of the reel,

fig. 6 shows the protective device according to fig. 1 to 5 in a sectional view, cut away and enlarged, in the region of the guide channel of the guide assembly, on which the pull-out profile is guided in a sliding manner,

figure 7 shows the protection according to figures 1 to 6 in a schematic and partly cut-away longitudinal section in the axial direction of the reeling shaft,

fig. 8 shows the protective device according to fig. 1 to 7 in a view corresponding to fig. 3, wherein the individual components and/or sections are hidden in the figure and the pull-out profile assumes a maintenance position along the guide assembly,

figure 9 shows the protective device according to figures 1 to 8 in a view corresponding to figure 4 and in a service position of the pull-out profile,

fig. 10, 11 show the protective device according to fig. 1 to 9 in a view corresponding to fig. 8 or 9, wherein, starting from the maintenance position (fig. 8, 9), the pull-out profile is released from the guide assembly,

fig. 12, 13 show the protective device according to fig. 1 to 11 in a view corresponding to fig. 10 or 11, wherein the reel is axially displaced relative to the guide assembly and the rope drum and is released from the bearing receptacle in the region of the second bearing element (fig. 13),

fig. 14 shows the protective device according to fig. 1 to 13 in a view corresponding to fig. 2, wherein, starting from the state that can be seen with the aid of fig. 12 and 13, the reel is additionally unwound from the cable drum and

fig. 15 shows the protective device according to fig. 1 to 14 in a diagrammatic manner corresponding to fig. 14, wherein the reel is completely detached from the remaining components and/or sections of the protective device.

Detailed Description

According to fig. 1, a protective device 1 is provided in the form of a screening device for a vehicle interior of a passenger vehicle, which is not shown in detail in the figures. In the vehicle-side mounted state, the protective device 1 is provided for covering a roof opening 2 of a passenger vehicle, which extends through the roof of the passenger vehicle in the vehicle vertical direction Z.

The protective device 1 has a reel 3 which is mounted so as to be rotatable about its longitudinal axis C in a manner which will be described in more detail below. In the illustrated embodiment, the longitudinal axis C extends parallel to the vehicle transverse direction Y. The reel 3 is rotatably supported by means of a first bearing element 4 and a second bearing element 5 on bearing

receptacles

6, 7 arranged opposite the reel 3 in the axial direction L, namely a first bearing receptacle 6 and a second bearing receptacle 7 (fig. 2).

In the embodiment shown, the

support receptacles

6, 7 are formed in a manner that will also be described in more detail on a frame module R (fig. 15) of the protective device 1 and are therefore arranged fixedly with the vehicle in the ready-to-assemble state of the protective device 1.

The flexible flat-shaped structure 8 is held in a manner known in principle windable and disengageable on the reel 3 and is connected to the pull-out profile 9 at a front end region, which is remote from the reel 3 and is not shown in detail. The pull-out profile 9 is of stable shape and extends parallel to the axial direction L. In addition, the pull-out profile 9 is guided on the

guide assemblies

10, 11 in a manner described in greater detail below in a manner that is movable in a sliding manner along the pull-out direction a.

In this context, the

guide assembly

10, 11 has two rails, namely a first rail 10 and a second rail 11, which in the embodiment shown extend parallel to each other and to the vehicle longitudinal direction X. In the embodiment shown, the guide rails 10, 11 are assigned to the frame module R.

In the state which is visible in particular from fig. 1, the pull-out profile 9 assumes an end position which is rearward with respect to the pull-out direction a and in which the flexible flat-shaped structure 8 is wound substantially completely around the reel 3. In this rear end position, the roof opening 2 is released by the flexible flat-shaped structure 8 and is therefore not concealed. In a displaced state, not shown in the figures, of the pull-out profile 9, the latter is displaced in the pull-out direction a into a front end position in which the flexible sheet-like structure 8 is unwound from the reel 3 and spread flat for covering the roof opening 2. Accordingly, the protective device 1 assumes the covering position in the forward end position of the pull-out profile 9. In the rear end position of the pull-out profile 9, the protective device 1 conversely assumes the open position.

In order to displace the protective device 1 between the covering position and the open position in a driven manner, a cable traction system S is provided which is mechanically operatively connected in a manner known in principle both to the pull-out profile 9 and to the winding shaft 3.

In the embodiment shown, the rope traction system S has an electric drive motor M, which is only partially visible with the aid of fig. 2. The drive motor M is operatively connected to a cable drum (Seilscheibe) 12 of the cable traction system S for transmitting a drive force or torque. The cable drum 12 and the drive motor M are arranged here on a frame profile 13 of the frame module R, which extends in the transverse vehicle direction Y between the guide rails 10, 11. The cable pulley 12 is mounted on the frame profile 13 so as to be rotatable about a rotation axis, which is not illustrated in detail, and acts on at least one cable strand 14, which interacts with the cable pulley 12 in a manner known in principle.

The rope traction system S also has a rope drum 15, which is connected to the first support element 4 in a torque-transmitting manner for transmitting a drive force or a drive torque to the reel 3. In the embodiment shown, the cable drum 15 is mounted on the frame module R so as to be rotatable about the longitudinal axis C and interacts with the cable harness 14 in a manner known in principle.

In order to be able to assemble and disassemble the reel 3 from the frame module R and the rope pulling system S assembled thereon in a particularly simple manner, the first bearing element 4 and the second bearing element 5 can be displaced axially inwardly relative to one another and can be prestressed axially outwardly by means of at least one spring element 16, wherein the rope drum 15 and the first bearing element 4 are connected to one another by means of an axially releasable plug connection V.

For detaching the reel 3 from the frame module R, the first support element 4 can be displaced in the axial direction L relative to the reel 3 in a manner to be described in more detail below. The bearing element 4 can be axially displaced relative to the second bearing element 5, as a result of which the axial distance between the bearing

elements

4, 5 can be varied for releasing the

respective bearing receptacles

6, 7 and/or the plug connection V.

The first bearing element 4 is formed in the embodiment shown in the form of a bearing shaft 17 which extends coaxially with the reel spool 3. The bearing shaft 17 is axially inserted into a recess 20 of the reel spool 3 (fig. 7). Furthermore, the bearing shaft 17 has an axially outwardly arranged plug section 18, which in the embodiment shown is designed in the form of a double edge (not shown in detail) (fig. 14). In the case of an axially releasable plug connection V, the plug section 18 is plugged together with the plug receptacle 19 of the cable drum 15 in a torque-transmitting manner in the circumferential direction.

Furthermore, the bearing shaft 17 has a bearing section 21 which is arranged opposite the plug section 18 and thus axially inwardly.

In the embodiment shown, the reel spool 3 is supported on the bearing shaft 17 by means of a first bearing bush 22 and a second bearing bush 23. The first bearing bush 22 and the second bearing bush 23 are each secured in a manner not shown in detail in a rotationally fixed and axially immovable manner on an inner wall 24 of the reel 3.

The bearing shaft 17 is inserted axially into a second bearing bush 23 in the region of the bearing section 21 and is movable both axially and rotationally relative thereto. At the same time, the bearing shaft 17 is supported on the first bearing bush 22 in the region of the further bearing section 25 so as to be axially and rotationally movable relative thereto.

The second bearing element, which is visible in particular in fig. 4, is designed in the embodiment shown as a bearing journal 26. The bearing journal 26 is axially fixedly and torsionally fixed in a manner not shown in the figures with the reel 3 and is inserted in the axial direction L in a rotationally movable manner into a second bearing receptacle 7, which is designed as a cylindrical bearing bore.

In the embodiment shown, the cable drum 15 has a first bearing section 27 and a second bearing section 28, wherein the bearing

sections

27, 28 are arranged coaxially to one another and are of journal-like design. The first bearing segments 27 are arranged axially outward and are inserted in a rotationally movable manner into bearing receptacles, not shown in detail, of the frame module R. The second bearing section 28 is arranged axially inwardly on the cable drum 15 and is inserted rotatably into the first bearing receptacle 6. The first bearing element 4 is therefore supported in this case indirectly rotatably on the first bearing receptacle 6 via the cable drum 15.

Furthermore, in the embodiment shown, the cable drum 15 is fixed in the axial direction L between wall sections, not shown in detail, of the frame module R.

In the embodiment shown, the spring element 16 is inserted axially into the recess 20 of the reel 3 and is arranged radially between the bearing shaft 17 and the inner wall 24. In particular, the spring element 16 is operatively connected at one end to the bearing shaft 17 and at the other end to the winding shaft 3 in order to bias the bearing shaft 17 axially outward. For this purpose, the spring element 16 is fixedly connected here to the first bearing bush 22 and thus indirectly to the reel 3 on an axially outer first connecting section 29 in a manner not shown in detail in the figures. On the second, axially inner connecting section 30, the spring element 16 is fixedly connected to the bearing shaft 17.

In the embodiment shown, the spring element 16 is in the form of a helical spring 31 which extends coaxially with the winding shaft 3 and is pretensioned under tension in the configuration visible in fig. 7, so that the bearing shaft 17 is pretensioned by means of the spring element 16 axially outward in the direction of the cable drum 15 and thus also in the direction of the first bearing receptacle 6.

As is further shown in fig. 7, the bearing shaft 17 is in this case supported in a rotationally sprung manner in the circumferential direction on the first bearing bush 22, and thus indirectly on the winding shaft 3, by means of the spring element 16. In this case, the spring element 16 is torsionally prestressed about the longitudinal axis C and thus produces a torsionally prestressed support between the bearing shaft 17 and the reel 3. Due to this pretensioning, the spring element 16 additionally acts as a tensioning element 32 for pretensioning the flexible flat-shaped structure 8 in the pull-out direction a. This prevents the flexible flat-shaped article 8 from sagging in the covering position and compensates for possible play of the cable traction system S.

In order to counteract an unintentional release of the plug connection V and the bearing mechanism at the bearing

receptacles

6, 7, a stop mechanism 33 is provided. The stop mechanism 33 blocks the axial relative displacement between the first support element 4 and the second support element 5. The reel 3 is thereby arrested in the axial direction between the bearing

receptacles

6, 7 fixed to the vehicle.

The locking mechanism 33 has a locking spring 34 in the embodiment shown. The locking spring 34 is designed here as a leaf spring and interacts with an end region, not shown in detail, of the reel 3 in order to limit the axial mobility in the event of an unintentional axial displacement of the reel 3 in the direction of the first bearing receptacle 6.

In the embodiment shown, the locking mechanism 33 can be displaced in a manner which will be described in more detail below by means of a displacement of the pull-out profile 9 in the pull-out direction a between an activated state (in particular fig. 5) and a deactivated state (in particular fig. 8). In the activated state, the retaining spring 34 counteracts an unintentional axial displacement of the reel 3 in the manner described above. In contrast, in the deactivated state of the locking mechanism 33, the axial mobility of the reel 3 is released in order to detach the reel 3.

As is shown in particular in fig. 6, the pull-out profile 9 has retaining elements 35 which are arranged outwardly in the longitudinal direction of the pull-out profile. The holding member 35 is releasably held on the sliding element 36. The sliding element 36 is guided in a sliding manner in the pull-out direction a in the guide channel F of the first guide rail 10. The cable pulling system S is indirectly connected to the holding element 35 and thus to the pull-out profile 9 via the sliding element 36. For this purpose, the cable harness 14 acts on the sliding element 36 in a manner known in principle.

In the embodiment shown, the pull-out profile 9 is designed symmetrically with respect to the central transverse plane and therefore has two holding elements 35 which are arranged opposite one another in the longitudinal direction of the pull-out profile 9, as can be seen in particular from fig. 8 and 9. The disclosure relating to fig. 6 applies in a corresponding manner with regard to the configuration and function of the holding element 35 shown according to fig. 9. In order to avoid repetitions, reference is made below primarily to the holding element 35 located to the left with respect to the drawing plane of fig. 1, wherein the disclosure made in this respect applies in a corresponding manner to the other holding element 35 located to the right.

When the pull-out profile 9 is displaced along the

guide assemblies

10, 11, the holding element 35 is held together with the sliding element 36 in the guide channel F of the first guide rail 10 in the vehicle vertical direction Z in a form-fitting manner (see fig. 6).

For transmitting forces between the holding element 35 and the sliding element 36 in the pull-out direction a, the holding element 35 has a contour, not shown in detail, which is visible in particular according to fig. 10 and interacts in a form-fitting manner with a mating contour, not shown in detail, of the sliding element 36 in the pull-out direction a. The contour of the holding element 35 in the embodiment shown has two hook-shaped profile elements, not shown in detail, which interact in a form-fitting manner with corresponding profile receptacles of the sliding element 36 in the pull-out direction a.

In the displacement region between the front end position and the rear end position of the pull-out profile 9, the holding element 35 is held on the sliding element 36 in the vertical direction Z of the vehicle in a form-fitting manner and thus unreleasable. In order to remove the pull-out profile 9 from the

guide arrangement

10, 11, the guide channel F of the first guide rail 10 has a wall recess 37, which can be seen in particular from fig. 3. In the illustrated embodiment, the wall recess 37 extends substantially parallel to the vehicle vertical direction Z through a wall, not illustrated in detail, of the first guide rail 10. This applies correspondingly to the configuration of the second rail 11. For releasing from the sliding element 36, the sliding element 35 can be removed from the wall recess 37 in the vehicle vertical direction Z. In order to enter the region of the wall recess 37, the pull-out profile 9, in the embodiment shown, must assume a maintenance position with respect to the

guide assemblies

10, 11, which is shown in this context according to fig. 8 and 9. In the maintenance position, the pull-out profile 9 is displaced beyond the rear end position in the pull-out direction a.

In order to prevent the pull-out profile 9 from being unintentionally displaced into the maintenance position, a stop element 38 is provided, which is releasably fastened in the region of the rear end position of the pull-out profile 9 of the first rail 10. The stop element 38 is designed here as a bolt and projects into the guide channel F in a manner that cannot be seen in detail in order to limit the displaceability of the pull-out profile 9. When the rear end position is reached, the stop element 38 interacts with the pull-out profile 9 in a form-fitting manner in the pull-out direction a.

Starting from the configuration visible according to fig. 1 to 7, the removal of the reel 3 and the pull-out profile 9 from the frame module R is carried out as follows:

first, the stop element 38 is removed from the

guide assembly

10, 11. As a result, the pull-out profile 9 can be displaced beyond the rear end position (see in particular fig. 3) in the direction of the maintenance position. In order to displace the pull-out profile 9 into the service position, the cable traction system S is actuated accordingly in a manner known in principle.

In the maintenance position of the pull-out profile 9, the protection device 1 occupies the configuration visible according to fig. 8 and 9. In this case, the holding elements 35, which are arranged opposite one another on the end side, are positioned in the region of the respective wall recess 37. At the same time, in the case of the aforementioned displacement of the pull-out profile 9 into the maintenance position, the stop mechanism 33 is deactivated. In the embodiment shown, the retaining spring 34 has an actuating section 39 (fig. 5). When the pull-out profile 9 is displaced into the maintenance position, the sliding element 36 bears in a manner not shown in detail against the actuating section 39, as a result of which the locking spring 34 is pressed outward in the axial direction, as a result of which the locking mechanism 33 is switched into the deactivated state.

Starting from the state shown according to fig. 8 and 9, the pull-out profile 9 is released from the

guide assemblies

10, 11 and thus also from the cable pulling system S acting on the sliding element 36 by removing the holding element 35 via the wall recess 37 (fig. 10, 11). The sliding element 36 is held in the guide channel F and at the same time holds the stop mechanism 33 in the deactivated state.

Starting from the configuration visible according to fig. 10 and 11, the reel 3 is axially displaced to the left with respect to the plane of the drawing of fig. 7. This displacement takes place against an axially outwardly directed pretension of the bearing shaft 17. The second bearing element 5, which is fixedly mounted on the winding shaft 3, is here displaced together with the winding shaft 3 in the axial direction relative to the bearing shaft 17 and finally disengaged from the second bearing receptacle 7 (fig. 13).

The reel 3 can then be pulled out of the rope drum 15 and thus also of the first support receptacle 6 in the opposite axial direction. In this case, the plug connection V is released. At the same time, the bearing shaft 17 is displaced outward by means of the spring element 16 as a result of the axial pretensioning.

The locking

mechanisms

40, 41 are transferred from a released state (see fig. 7 in particular) into a locked state, which is not shown in detail in the figures. The

locking mechanism

40, 41 has a first locking element 40 and a second locking element 41 in this case, which in the locked state cause a torsionally pretensioned locking of the spring element 16. The first locking element 40 is formed here in the form of a radial thickening of the bearing shaft 17. The second locking element 41 is formed in the form of a radial contour of the first bearing bush 22. In the locked state, the first support element 40 is displaced in the axial direction outwards into the contour 42 and is supported on it in a torque-proof manner. The locking means 40, 41 for locking the torsional pretensioning of the spring element 16 are thereby automatically transferred from the released state (fig. 7) into the locked state by means of the axial pretensioning of the spring element 16 when the plug connection V is released.

After the release of the plug connection V, the protective device 1 assumes the configuration shown in fig. 14 and can be transferred from this configuration into the disassembled state shown in fig. 15. In the disassembled state, the reel 3 is disassembled from the frame module R together with the pull-out profile 9 and the flexible flat-shaped structure 8.

It will be understood that, starting from the disassembled state visible in fig. 15, the assembly of the reel 3 and of the pull-out profile 9 takes place in a correspondingly reversed manner.

Claims

1. A protective device (1) for a motor vehicle interior, having: a reel (3) which is rotatably supported by means of a first bearing element (4) and a second bearing element (5) on a bearing receptacle (6, 7) which is stationary relative to the vehicle and which is arranged opposite the reel (3) in the axial direction (L); a flexible flat-shaped structure (8) which can be wound and unwound and is held on the reel (3); a pull-out profile (9) which is connected to an end region of the flexible flat-shaped structure (8) and is guided displaceably in a pull-out direction (A) on a guide arrangement (10, 11) which is fixed to the vehicle, and the protective device has a cable pulling system (S) which is provided for the driven winding and/or unwinding of the flexible flat-shaped structure (8) and is operatively connected to the pull-out profile (9) and to the reel (3), wherein the cable pulling system (S) has a cable drum (15) which is arranged coaxially to the reel (3) and is connected to the first bearing element (4) in a torque-transmitting manner for transmitting the drive force, characterized in that the first bearing element (4) and the second bearing element (5) are displaceable axially inward relative to one another and are prestressed axially outward by means of at least one spring element (16), wherein the cable drum (15) and the first bearing element (4) are connected to each other by means of an axially releasable plug connection (V).

2. The protection device (1) according to claim 1, characterized in that said reel (3) has a recess (20) in which said at least one spring element (16) is arranged and is operatively connected at one end to said first support element (4) and at the other end to said reel (3).

3. The protection device (1) according to claim 1 or 2, characterized in that the at least one spring element (16) is constructed in the form of a helical spring (31) extending coaxially with the reel (3), which acts at least as a tension spring and/or a compression spring.

4. The protective device (1) according to claim 1 or 2, characterized in that the first bearing element (4) is supported with pretension on the reel (3) by means of the at least one spring element (16) additionally in a rotationally sprung manner in the circumferential direction, so that the spring element (16) additionally acts as a tensioning element (32) for pretensioning the flexible flat-shaped structure (8) between the reel (3) and the pull-out profile (9).

5. The protection device (1) according to claim 4, characterized in that a locking mechanism (40, 41) is provided, by means of which the first support element (4) and the reel (3) can be locked rotationally fixed relative to each other, and the at least one spring element (16) can be locked in a torsionally pretensioned state in a releasable manner.

6. The protection device (1) according to claim 5, characterized in that the locking mechanism (40, 41) is displaceable by means of an axial relative displacement between the first bearing element (4) and the second bearing element (5) between a locked state, in which the spring element (16) is locked with a torsional pretension, and a released state, in which the spring element (16) is released.

7. The protection device (1) according to claim 6, characterized in that the locking mechanism (40, 41) is pretensioned by means of the at least one spring element (16) in the direction of the locked state.

8. The protection device (1) according to claim 1 or 2, characterized in that a stop mechanism (33) is provided, which blocks the axial relative displacement between the first support element (4) and the second support element (5), whereby the reel (3) is stopped in the axial direction (L) between the support receptacles (6, 7) fixed with the vehicle.

9. The protection device according to claim 8, characterized in that the stop mechanism (33) has at least one stop spring (34) which acts axially on an end region of the reel (3) for stopping the reel (3) between the bearing receptacles (6, 7).

10. The protection device (1) according to claim 8, characterized in that said stop means (33) are displaceable, by means of a displacement of said pull-out profile (9) along said pull-out direction (A), between an activated condition, in which said reel (3) is stopped in an axial direction (L) by means of said stop means (33), and a deactivated condition, in which said reel (3) is released in an axial direction (L).

11. The protection device (1) according to claim 8, characterized in that the pull-out profile (9) has at least one retaining element (35) which is located outwardly in the longitudinal direction of the pull-out profile (9) and which is releasably retained on a sliding element (36), wherein the sliding element (36) is guided in a guide channel (F) of the guide assembly (10, 11) in a sliding manner, and wherein the cable pulling system (S) acts on the sliding element (36).

12. The protective device (1) according to claim 11, characterized in that a service position of the pull-out profile (9) is provided, in which service position the pull-out profile (9) is displaced into the region of a wall recess (37) of a guide channel (F) and can be removed from the guide channel (F) by means of the wall recess (37) for releasing from the sliding element (36), wherein the retaining element (35) is held on the sliding element (36) by means of the guide channel (F) in a non-releasable manner beside the service position.

13. The protection device (1) according to claim 12, characterized in that a stop element (38) is provided which can be releasably fixed on the guide assembly (10, 11) and which counteracts an unintentional displacement of the retaining element (35) in the region of the wall recess (37).

14. The protection device (1) according to claim 12, characterized in that the stop means (33) have an activation section (39) which is activated by means of the pull-out profile (9) and/or the sliding element (36) in order to deactivate the stop means (33) in the maintenance position and which is deactivated beside the maintenance position.