DE102006041794A1 - Roller blind arrangement for a motor vehicle - Google Patents

Abstract

It is proposed a roller blind arrangement for a motor vehicle, comprising a roller blind (20) which is mounted on a winding shaft (22) which is biased by means of a coil spring (26) in the opening direction of the roller blind (20), and at its the winding shaft (22 ) side facing away with a Zugspriegel (28) is laterally guided in each case via a sliding element (30A, 30B) in a guide rail (32A, 32B). The sliding elements (30A, 30B) can be moved in the guide rails (32A, 32B) by means of a drive motor (31). According to the invention, for the optional manual actuation of the roller blind arrangement on the sliding elements (32A, 32B), a coupling element is formed which cooperates with a driver (36A, 36B) which can be moved by means of the drive motor (31) and which by means of a release ramp (62A, 62B) consists of a Locking position is switched into a release position, in which an operative connection between the respective sliding element (30A, 30B) and the respective driver (36A, 36B) is repealed.

Description

The The invention relates to a roller blind arrangement for a motor vehicle with the Features of the preamble of claim 1.

A Such roller blind arrangement is known from practice and is used for example as a shadowing device for a transparent cutout or area of a vehicle roof. For this purpose, this roller blind arrangement comprises a roller blind which is connected to a tubular winding shaft is mounted, which by means of a coil spring in the opening direction the roller blind is biased. At her facing away from the winding shaft Side, the roller blind has a Zugspriegel on the side over each one Sliding element in a guide rail guided is. The sliding elements are by means of a drive motor in the respectively associated guide rail traversable. In such a roller blind arrangement, the roller blind only electrically in closing or opening position to be brought.

Of Furthermore, roller blind arrangements for vehicle roofs are known, in which a roller blind is closed and opened in a manual manner can. To secure the closed position is at a Zugspriegel, which faces away from a winding shaft Side of the roller blind is arranged, formed a rigid hook, which can be hung on a roof-proof area of a roof frame. To unhook the hook is on a handle for opening and closing the Roller blind arrangement provided an auxiliary mechanism, which is a release of the hook caused by the roof frame. It is also known, appropriate hooks in the area of lateral, in guide rails out To arrange sliding elements on which the pull bar is attached.

Of the Invention is based on the object, one mentioned in the introduction Genus executed Roll arrangement to create, in addition to an electrical operation by a simple means also a manual operation can be realized.

These Task is inventively by the Rolloanordnung solved with the features of claim 1.

Of the Essence of the invention is therefore that on the sliding elements the Zugspriegels, which are each guided in a guide rail, a clutch mechanism is formed, which in an electric activity the roller blind arrangement by means of the drive motor, the sliding elements couples with the drivers and in a manual operation the Opposite sliding elements releases the carriers. The release order is via a corresponding, in the area of the guide rails arranged ramps, which the coupling elements in a Switch release position, in which an operative connection between the sliding elements and the respective associated driver lifted is. The mechanism for switching the coupling elements is thus in the respective guide rail integrated. An elaborate one actuating mechanism in the area of the Zugspriegels is not required.

The Roller blind arrangement according to the invention is particularly suitable for use in the area of a motor vehicle roof and there to shadow a means of an at least partially transparent cover element closable or at least partially releasable roof opening. Preferably in this Fall the roller blind in the direction of travel, d. H. in the direction of the vehicle front extendable, and the winding shaft is located behind the corresponding roof opening. In particular, the blind assembly can also in a multipart, as so-called retractable hardtop (RHT) trained Cabriolet roof be integrated in his above the vehicle front seats arranged area is provided with a sunroof.

The Roller blind arrangement according to the invention is as usual with respect to a vehicle longitudinal median plane in Essentially formed mirror-symmetrical and thus includes both sides the Zugspriegels mirror-symmetrically designed coupling elements, which cooperate with also mirror-symmetrical drivers. The drivers can each be connected to a pressure-resistant drive cable, which is driven by the drive motor. The drive motor serves in usually also for driving a sunroof cover element, wherein for driving the cover element or the roller blind arrangement, a coupling mechanism can be provided.

In a structurally simple to implement and preferred embodiment of the blind assembly according to the invention, the coupling elements which are provided on the two sliding elements are each formed as a gripping hook, which has a substantially parallel to the pull lever aligned pivot axis. If the gripping hooks are in each case in engagement with one of the drivers, unintentional winding of the roller blind caused by the action of the clock spring is prevented on the winding shaft. The opening and closing is then carried out by driving the drive motor. The release of the gripping hooks from the drivers can be done by simple manual intervention, namely the fact that the Zugspriegel is pushed forward in a manual manner and the gripping hooks arranged on both sides each accrue to the associated guide rail fixed release ramp and are switched from the blocking position to the release position. In the release position then the sliding elements on which the tension mirror be is solidified by the force exerted by the coil spring tensile force in the respective associated guide rails slide backwards, without getting caught on the gripping hooks on the drivers. Thus, a manual opening of the roller blind can be realized in a simple manner.

Conveniently, drive the coupling elements on the respectively associated, vehicle-fixed release ramp to release the sliding element with respect to the driver in one closed position the roller blind on. The release ramps are thus at the winding shaft side facing away from shaded by the roller blind area arranged. This means that the Zugspriegel in a in electrical Way produced by means of acting on the driver drive motor closed position the blind is still a minor Game in the closing direction has, whereby the coupling elements by applying a manual force on moved the pull bar to the respective release ramp and into Release position can be switched.

Around make the switching state of the coupling elements reversible can, includes a convenient embodiment the roller blind assembly according to the invention further guide rail fixed Ramps, each of one of the coupling elements in an open position the roller blind to switch from the release position to the respective Run over locked position become.

at a special embodiment the roller blind arrangement according to the invention is the respective coupling element the sliding elements a bistable element by means of a spring element is biased in its two switching positions, the two directions of action has that dependent are from the position of the coupling element with respect to a Dead center. So if the coupling element by means of one of the ramps over the Dead center pressed, so it snaps into his due to the spring force of the spring element Release or blocking position. The spring element is for example designed as a leaf spring or as a spiral spring.

Around the sliding elements after a manual opening of the roller blind again To couple with the drivers, the Zugspriegel can either manual Way in the closing direction be pulled until the switched by the locking ramp in the locked position Coupling elements at the anywhere on the guide rails engage arranged drivers. Alternatively, but also the drivers by operation of the drive motor by returning in one of the open position the roller blind associated position in engagement with the coupling elements to be brought. In a special embodiment of the roller blind after In this case, the carriers undercut each one of the carriers by means of the locking ramps in blocking position switched coupling elements. These are pressed up here, without any switching triggered in release position becomes.

Around ruled out that one of the drivers when driving under the respective associated coupling element hooked on this, the drivers preferably each have one Ramp on, on which the relevant coupling element slides along.

Around Exclude faulty circuits, is preferably a force acting from above on the coupling element Counter-pressure element provided, which prevents the coupling element in the release position, when driving under the driver becomes. The counter-pressure element thus acts as a dead center.

Of Further, in the area of each guide rail a safety barrier be provided, which is the relevant Coupling element in an intermediate position of Zugspriegels between the closed position and the open position the roller blind switches to locked position. So it does not require that the drawbar again in the the complete opening of the Roller blind assigned position must be moved when he manual closing as far as in the closing direction was suppressed, that accidentally a switching operation for switching the coupling elements was triggered by their ramping on the release ramps, which a coupling of the sliding elements made impossible with the drivers has been.

In order to preclude incorrect operation of the roller blind arrangement, the coupling elements can furthermore each be provided with a switching mechanism which reversibly displaces them transverse to the pull-out direction so that the coupling element does not strike the associated release ramp when the roller blind is pulled out manually from the open position to the closed position , Consequently, no switching is triggered in case of accidental overpressure of Zugspriegels in the closing direction. The switching mechanism preferably displaces the coupling elements in the area of the rear locking ramps, ie when the respective coupling elements are switched into the locked position, in the vehicle transverse direction, so that they no longer align with the front release ramp. A second switching point for displacing the coupling elements in the opposite direction, ie for resetting the coupling elements, can be arranged in the region of the front release ramps, in such a way that the coupling elements, when they move forward in the vehicle transverse direction with respect to the release ramps in height of the release ramps were proceeding, on their way back before or on reaching the Mit be moved back and thus again aligned with the front release ramps and can be brought by cooperation with these in release position.

The Switching mechanism is, for example, of two in opposite Directional transverse ramps formed that the respective coupling element or the respective gripping hook transversely to the withdrawal direction of the roller blind offset. The switching mechanism thus operates such that at a manual return of Zugspriegels in the open position the roller blind assigned position such an offset of the coupling elements done that they are no longer with the assigned release ramps aligned. Now, the roller blind by manual pull on the drawbar in closed position and brought up to the release ramps, come the coupling elements not in contact with the release ramps. They get caught up, though when driving back at the respective driver. When pulling the drawbar again in the closing direction However, the coupling elements by the switching mechanism already offset in the opposite direction, so that this on the Can open the release ramps and the sliding elements in one of the opening position of the roller blind assigned position can be moved without getting over the Hook coupling elements to the drivers. Such a switching mechanism can also be formed by so-called switching hearts or a "push-push" mechanism be.

Preferably the sliding element is a plastic injection molded part, integrally with it Double stop for the coupling element is formed, the locking position and the release position of the particular designed as a gripping hook coupling element Are defined. Alternatively, too separate stops for the Release position and the blocking position of the coupling element on the plastic injection be formed. It is also conceivable, separately produced pins to fix on the slider, the stops for the relevant coupling element form.

Around a user of the roller blind assembly according to the invention also a Switch point show at which the coupling elements from the locked position switch to the release position are in an expedient embodiment the roller blind arrangement according to the invention provides elastic buffer elements, against the respective one of the sliding elements when driving the coupling elements is pressed on the respective release ramp. It can also be one be provided elastic buffer element, against which the Zugspriegel depressed becomes. The elastic buffer element or the elastic buffer elements is or are at play, each from a rubber block or the like educated.

The Type of operation of the roller blind assembly according to the invention can a User by suitable shaping of an operating handle or a recessed grip, the one or the arranged in the region of Zugspriegels mediated become.

Further Advantages and advantageous embodiments of the roller blind arrangement according to The invention are the description, the drawings and the claims removed.

One embodiment a roller blind arrangement according to the invention is schematically in the drawing is shown in simplified form and will be described in the following description explained in more detail. It shows

1 a top perspective view of a vehicle roof, which is provided with a roller blind assembly according to the invention;

2 a highly schematic view of the roller blind assembly;

3 a perspective view of a sliding member and a driver;

4 a schematic side view of the driver and the sliding member in the coupled state;

5 an interaction of a coupling element with a front ramp;

6 the driver and the slider in the uncoupled state;

7 an interaction of the coupling element with a rear ramp; and

8th an interaction of the coupling element with a dead center.

In 1 is a motor vehicle 10 with a vehicle roof 12 shown with a roof opening 14 is provided by means of a transparent cover element 16 is closable.

For shading the roof opening 14 includes the vehicle roof 12 a roller blind arrangement 18 , in the 2 is shown in isolation. The roller blind arrangement 18 includes a roller blind 20 , which is formed of a flexible, rollable fabric and on a winding shaft 22 aufwickelbar or unwindable from this. The winding shaft comprises a winding tube 24 , at which one end of the roller blind 20 is fixed and the means of a trained conventional coil spring 26 biased in the circumferential direction, so that the roller blind 20 automatically on the winding tube 24 can wind up.

At her the winding shaft 22 facing away from the roller blind 20 a extending in the vehicle transverse direction Zugspriegel 28 on, at its lateral end regions each with a sliding element 30A respectively. 30B is provided in a guideway of a roof-fixed guide rail 32A respectively. 32B displaceable in the vehicle longitudinal direction and guided in the vehicle transverse direction without play.

To drive the roller blind arrangement 18 a drive motor 32 on, on two oppositely driven pressure-resistant drive cable 34A and 34B acts, each with a driver 36A respectively. 36B are connected, which also in a guideway of the guide rail 32A respectively. 32B is displaceable in the vehicle longitudinal direction and with the respectively associated sliding element 30A respectively. 30B is detachable.

The sliding element 30B that is mirror-symmetrical to the sliding element 30A is trained in is 3 shown in detail and represents a plastic injection molded part, which has a rear, both sides laterally sliding section 38 and a front one-sided sliding section 40 having. At the guide side of the front sliding portion 40 opposite side is designed as a gripping hook coupling element 42 pivotally mounted, the pivot axis 44 in the vehicle transverse direction, ie substantially parallel to the pull bar 28 Aligned with the the sliding element 30B connected is. The sliding element 30B has a corresponding coupling element 42 on.

The coupling element 42 represents a bistable element, which by means of a spring 46 , which is designed here as a spiral spring, but may also be designed as a leaf spring, can be biased in a blocking position and in a release position, wherein in 3 the blocking position of the coupling element 42 is shown, in which the coupling element 42 for engagement with the driver 36B is positioned with the drive cable 34B connected is. The driver 36B includes for coupling with the sliding element 30B a driver block 48 , on the front end face of an active surface 50 of the coupling element 42 can attack.

The two positions of the coupling element 42 , ie the release position and the blocking position, are each by means of a stop 52 respectively. 54 defined, which at a common, in cross-section triangular serving as a double stop stop pin 56 are formed, which is integral with the injection-molded driver 30B is trained.

The coupling element 42 serves to make the blind assembly 18 if necessary, can also be operated manually. For manual operation of the roller blind arrangement 18 is in the area of the Zugspriegels 28 a grip tab 58 educated. For switching the coupling element 42 in its two positions, ie in the release position or in the blocking position, the roller blind has ramps. For switching in release position are in the range of a front edge 60 of the roof opening 14 in alignment with the respective sliding element 30A respectively. 30B associated coupling element 42 front release ramps 62A and 62B provided, which act such that the respective coupling element 42 when it's on the clearance ramp 62A respectively. 62B ascends, is pivoted from the blocking position to the release position, such as 5 can be seen. The respective coupling element 42 is here by the respective ramp 62A respectively. 62B pressed over a dead center, leaving the spring 46 the coupling element 42 snap into his release position. In this release position of the coupling elements 42 can each assigned sliding elements 30A and 30B not with the respective associated driver 36A respectively. 36B be engaged because the coupling elements 42 when releasing the Zugspriegels 28 or from its grip tab 58 about the respective driver 36A respectively. 36B drive away. By the force of the coil spring 26 So then the sliding elements in the guide rails 32A and 32B move towards the rear of the vehicle and the blind is automatically on the winding shaft 22 wound.

In the area of a rear edge 64 of the roof opening 14 are in the area of the guide rails 32A and 32B from above on the coupling element 42 acting rear ramps 66A and 66B formed, which act as locking ramps and a method of sliding elements 30A and 30B towards the rear, ie towards the rear of the vehicle, the respective coupling element 42 push beyond its dead center so that this due to the force of the spring 46 snaps into its locked position, like 7 can be seen.

The front release ramps 62A and 62B and the rear locking ramps 66A and 66B are each roofproof or guideway trained.

In the area of the rear end position of the driver 30A respectively. 30B is also on each guide rail 32A and 32B one in 8th illustrated dead center fuse 68 formed, which is a pin-like, from above on the coupling element 42 acting projection on the relevant guide rail 32A respectively. 32B is trained. The a counter-pressure element representing dead center 68 serves to make the coupling element 42 if it's from the driver 36A respectively. 36B is driven under, due to the driver 36A respectively. 36B applied pressure not up to the in 8th dashed shown dead center is pressed and unintentionally snaps into its release position.

The roller blind arrangement 18 works in the manner described below.

Starting from the in 4 illustrated coupling state between the sliding elements 30A and 30B and the carriers 36A and 36B in which the coupling element 42 with the driver 36A respectively. 36B is engaged and an electromotive actuation of the roller blind assembly 18 by moving the driver 36A and 36B possible, a user can by grasping the grip tab 58 the drawbar 28 Pull in the direction of the front of the vehicle until the coupling elements 42 the sliding elements 30A and 30B on the respectively associated front release ramp 62A respectively. 62B mount up. When driving up the coupling elements 42 on the front release ramps 62A and 62B they are pushed beyond their dead center position, causing them due to the action of the coil spring 46 in through the stop 52 snap defined release position. Now the roller blind can 20 by the action of the coil spring 26 automatically on the winding shaft 22 wind up, with the coupling elements 42 in each case via the respectively associated driver initially remaining in the forward position 36A respectively. 36B drive backwards.

On the way back the coupling elements meet 42 each on one of the rear locking ramps 66A and 66B , which the respective coupling element 42 pushes down beyond the dead center position, so this by the action of the spring 46 snaps into its locked position, like 7 can be seen.

To now the drivers 36A and 36B again to be engaged with the respective associated coupling element 42 , the drivers can 36A and 36B by actuating the drive motor 32 electromotive in the guideways of the guide rails 32A and 32B to the rear under the coupling elements 42 to be moved backwards. Here, the drivers pivot 36A and 36B the respective associated coupling element 42 slightly upward, with the respective dead center 68 prevents the coupling elements 42 snap into their respective release position. When driving under the driver 36A respectively. 36B The coupling elements slide along a rear approach ramp 70 the respective owner 36A . 36B , After driving under the clutch elements snap back into their through the stop 54 defined locking position back, leaving the driver 36A and 36B in an electromotive method in the direction of the vehicle front on the active surfaces 50 the coupling elements 42 attack and the roller blind 20 take off, leaving the roof opening 14 is shadowed.

10

motor vehicle

12

vehicle roof

14

roof opening

16

cover element

18

The blind assembly

20

blind web

22

winding shaft

24

winding tube

26

Clock spring

28

tension bow

30A, B

Slide

31

drive motor

32A, B

guide rail

34A, B

drive cable

36A, B

takeaway

38

sliding

40

sliding

42

coupling member

44

swivel axis

46

feather

48

pusher

50

effective area

52

attack

54

attack

56

stop pin

58

grip tab

60

front edge

62A, B

front ramp

64

rear edge

66A, B

rear ramp

68

Totpunktsicherung

70

up ramp

Claims (13)

Roller blind arrangement for a motor vehicle, comprising a roller blind ( 20 ), which are connected to a winding shaft ( 22 ) is mounted, which by means of a coil spring ( 26 ) in the opening direction of the roller blind ( 20 ) is biased, and at its the winding shaft ( 22 ) facing away with a pull ( 28 ), which laterally in each case via a sliding element ( 30A . 30B ) in a guide rail ( 32A . 32B ) is guided, wherein the sliding elements ( 30A . 30B ) by means of a drive motor ( 31 ) in the guide rails ( 32A . 32B ) are movable, characterized in that on the sliding elements ( 30A . 30B ) each have a coupling element ( 42 ) is formed, which with a by means of the drive motor ( 31 ) movable carrier ( 36A . 36B ) and that by means of a release ramp ( 62A . 62B ) is switchable from a blocking position into a release position, in which an operative connection between the sliding element ( 30A . 30B ) and the driver ( 36A . 36B ) is canceled. Roller blind arrangement according to claim 1, characterized in that the coupling element ( 42 ) one Gripping hook is one parallel to the pull ( 28 ) aligned pivot axis has. Roller blind arrangement according to claim 1 or 2, characterized in that the coupling element ( 42 ) is a bistable element, which by means of a spring element ( 46 ) is biased in its two switching positions, which has two directions of action, which are dependent on the position of the coupling element ( 42 ) against a dead center position. Roller blind arrangement according to one of claims 1 to 3, characterized in that the coupling element ( 42 ) in a closed position of the roller blind ( 20 ) for releasing the sliding element ( 30A . 30B ) opposite the driver ( 36A . 36B ) at the release ramp ( 62A . 62B ) ascends. Roller blind arrangement according to one of claims 1 to 4, characterized by a locking ramp ( 66A . 66B ), which the coupling element ( 42 ) for switching to a blocking position in an open position of the roller blind ( 20 ) passes over. Roller blind arrangement according to one of claims 1 to 5, characterized in that the driver ( 36A . 36B ) by returning to an opening position of the roller blind ( 20 ) associated position in engagement with the coupling element ( 42 ) can be brought, wherein the switched in blocking position coupling element ( 42 ) is run over and this by the driver ( 36A . 36B ) is pressed up without triggering a switching operation. Roller blind arrangement according to claim 6, characterized in that the driver ( 36A . 36B ) a starting ramp ( 70 ), on which the coupling element ( 42 ) slides in the underride. Rolloanordnung according to claim 6 or 7, characterized by a from above the coupling element ( 42 ) acting counter-pressure element ( 68 ), which prevents the coupling element ( 42 ) in the release position, when it is in the locked position and by the driver ( 36A . 36B ) is driven under. Roller blind arrangement according to one of Claims 1 to 8, characterized by a safety locking ramp which holds the coupling element ( 42 ) in an intermediate position of the Zugspriegels ( 28 ) between the closed position and the open position of the roller blind ( 20 ) in locked position switches. Roller blind arrangement according to one of claims 1 to 9, characterized in that the coupling element ( 42 ) is reversibly displaceable transversely to the withdrawal direction by means of a switching mechanism, so that the coupling element ( 42 ) when manually pulling out the roller blind ( 20 ) from the open position to the closed position in a projection parallel to the guide rails next to the release ramp ( 62A . 62B ) lies. Roller blind arrangement according to claim 10, characterized in that that the switching mechanism of two in opposite directions acting transverse ramps is formed. Roller blind arrangement according to one of claims 1 to 11, characterized in that the sliding element ( 30A . 30B ) is a plastic injection molded part, on which a double stop ( 56 ) for the coupling element ( 42 ) is formed, the locking position and the free output position of the coupling element ( 42 ) Are defined. Roller blind arrangement according to one of claims 1 to 12, characterized by an elastic buffer element against which the sliding element when driving on the coupling element ( 42 ) is pressed on the release ramp.