DE202008009763U1 - vehicle blind - Google Patents

Abstract

Vehicle blind, in particular roller blind for motor vehicles, with a Rollobehang, which is connected to a pressure and / or rigid push element for mounting the Rollobehangs, and with a pushing element actuated adjusting device having a circulating traction means, in particular designed in the manner of a single-strand cable window lifter is, characterized in that the adjusting device (10) with a anti-trap device (18, 30, 51, 52) is connected.

Description

The The invention relates to a vehicle blind, in particular a sun blind for motor vehicles, according to the preamble of claim 1.

To the Shading of vehicle windows serving vehicle blinds for Motor vehicles are adjusted manually or by electric motor. at electromotive adjustment a roller blind drive is used, which is operatively connected to a pulling or pushing element, the one usually Rollobehang wound on a winding shaft to cover the Pulls window from the winding shaft, with a preferably connected as a torsion spring spring drive is connected under the action the Rollobehang is wound up again on the winding shaft.

There the connection of the tension or pressure medium with that of the winding shaft removed section of the Rollobehangs to one over the Width of the Rollo hang uniform deduction of the Rollo hanging from the winding shaft usually over a transverse to the withdrawal direction of the Rollobehangs bow takes place, despite the low acceleration forces required for adjusting the bow and roller blind, which in comparison have a low weight to a window pane to be adjusted, the risk of pinching body parts, in particular of child fingers, in a narrowing gap between the Spriegel and the window frame or in a narrowing gap between the bow and a roller blind receiving the roller blind cassette.

A compact trained adjustment for vehicle blinds is from the DE 10 2006 047 359 A1 known, which is designed in the manner of a single-strand cable window lifter and having a push rod which is connected on the one hand to the bow and on the other hand with a Rollomitnehmer, which is guided longitudinally adjustable in a tubular guide channel and is adjusted by a revolving roller blind of an electric motor roller blind.

There this drive principle for adjusting a vehicle blinds in the Location is the adjustment of the Rollobehangs in a desired Position in a very short time and thus with high acceleration too can realize, in the areas described above, in which is the gap between the bow and the window frame or the bow and a roller shaft receiving roller blind cassette narrowed, body parts are pinched and injured.

task the present invention is the risk of trapping Body parts and objects when adjusting to prevent the Rollo hang of a vehicle blind.

These The object is achieved by the features of claim 1.

The solution according to the invention avoids the risk of trapping body parts and objects when adjusting the roller blind suspension of a vehicle roller blind, in particular in the case of use of the DE 10 2006 047 359 A1 known compact adjustment device for adjusting the Rollobehangs a vehicle blinds.

The Solution according to the invention ensures that the force limit prescribed for window regulators to 100 N in many embodiments electromotive Adjustments for vehicle blinds also complied with and in particular children's fingers are protected against injury, because they despite the window lifters low Adjustment forces for vehicle blinds endangered would.

Preferably the anti-trap device consists of a mechanical anti-trap protection with means for limiting an excess force exists that is greater than one to adjust the Rollobehangs required adjusting force.

Of the Advantage of a mechanical anti-trap protection consists in its simple and inexpensive structure over for example an electronic anti-trap protection, whose use is mainly in Window lift drives due to the high mass adjustment forces and short reaction times is important. Furthermore there is the possibility of mechanical anti-trap protection in existing adjustment of the type mentioned retrofit with simple means.

Of the Mechanical anti-trap protection is such that it limits the excess force is used, d. h., The part of the adjusting force, which exceeds the adjustment force required for adjusting the vehicle blinds. This allows the mechanical anti-trap protection to be designed that he only limits the excess power.

About that In addition, with a mechanical anti-trap a quieter Reaching or approaching the end positions and a lower load at the plant of the winding shaft opposite section of the roller blind hang on the window frame in the upper or the lower Final position achieved.

The connection of the adjustment with a anti-trap, especially with a me chanical anti-trap, is particularly suitable in combination with an adjusting device which has a guided and displaceable in an elongated guide channel driver, which is connected to the thrust element and a circumferential in the guide channel roller blind, timing belt or the like, which is actuated by a drive , And that the mechanical anti-trap in the adjustment of the driver is arranged.

These universally applicable, compact adjustment is suitable both for installation in a vehicle body or conventional vehicle door as well as pre-assembled on one Door module or for mounting on a base plate or a door inner panel a vehicle door. Due to the arrangement of the mechanical Anti-jamming in the adjustment of the driver is the anti-trap integrated in the adjustment and can, for example, in an encapsulated embodiment within a tubular Housing the adjustment can be arranged.

Preferably the mechanical anti-pinch protection has at least one spring element that in the adjustment of the driver between the driver and an upper and / or lower spring element stop arranged is, wherein arranged in the adjustment of the driver upper and lower Mitnehmeranschläge to limit the adjustment of the Driver and upper and lower spring element stops, the so in terms of Mitnehmeranschläge and the Dimensions of the spring elements in the adjustment direction of the driver are arranged, that the spring elements for engagement with the spring element stops come before the driver strikes the upper or lower driver stop.

The Formation of the mechanical anti-trap as a spring element causes in Einklemmfall a deformation of the spring element for dissipation the surplus forces, so that on a in the adjustment path located body part one of the deformation of the spring element depending on its spring characteristic accordingly lower Einklemmkraft is exercised, so that with appropriate Dimensioning of the spring element the Einklemmkraft to allowable Values can be limited. For this purpose is the length and spring constant of the spring element to be determined so that a appropriate power is absorbed and the endangered Areas covered by the narrowing gap between the bow and the window frame or the bow and a roller blind receiving the roller blind cassette are formed. These vulnerable areas are defined by the relation between the Mitnehmeranschlägen, the spring element stops and the length of the spring element set.

from that results as a significant advantage good adjustability of the excess force limit over the spring characteristic of the spring elements.

In preferred embodiment, the spring elements from compression springs or spring packs with adjustable spring characteristic.

By the installation of a spring element with a well-adjusted spring characteristic is the excess force in the critical areas of the Adjustment of the Rollob hang clearly reduced, a low-noise Achieved reaching the end positions and a mechanical "soft start", d. H. a lower load when applying the bow to the Window frame guaranteed. In addition to the aforementioned spring elements can the mechanical anti-trap also by an elastically deformable Component made of rubber or plastic or the like can be realized.

A simple arrangement allows the formation of a spring element as a helical compression spring acting on the pusher element plugged between the driver and the upper spring element stop is, so that the thrust element causes a centering of the compression spring and no further measures for the position alignment of the compression spring required are.

In an embodiment of the invention Solution are a first section of the roller blind hang with a Winding shaft and a the first section of the Rollobehangs opposite lying section connected to the thrust element, the winding shaft rotatably mounted in a roller blind cassette and the Mitnehmeranschläge so arranged in the adjustment of the driver that the driver comes to rest against the Mitnehmeranschläge before the Rollobehang completely wound on the winding shaft or completely is deducted from the winding shaft.

There the use of mechanical anti-trap protection both in the arrangement an adjusting device above a window pane as well below a window is possible, as a mechanical anti-trap spring element inserted on the push element fitted, inserted into the gear housing of the roller blind drive or with the driver on the Mitnehmeranschläge or aligned with the Mitnehmeranschlägen on the driver get connected.

Based an embodiment shown in the drawing should the idea underlying the invention closer be explained. Show it:

1 a schematic longitudinal section through a motor vehicle door with arranged therein compact adjustment device for a vehicle blind;

2 an enlarged view of the adjustment in the upper part of the adjustment with a designed as a compression spring mechanical anti-trap and

3 an enlarged view of the area III of the upper part of the adjusting according to 2 ,

1 shows a longitudinal section through a motor vehicle door 1 with a door shaft 2 According to a door outer skin, a door inner panel and one in the presentation 1 For inspection in the door shaft removed door inner lining is determined, and with a door opening 3 passing through a longitudinal direction of the motor vehicle door 1 adjustable window pane 4 can be covered. The door opening 3 is bounded by a circumferential window frame edge, which is composed of an upper, a side and a lower window frame edge. To protect the vehicle interior against unwanted heating and to protect the vehicle occupants against glare from obliquely incident sunbeams is a vehicle blind 5 provided that a roller blind or Rollobehang 6 whose contour is approximately the contour of the door cutout 3 is adjusted so that when fully extended vehicle blind 5 the door opening 3 with the window closed 4 is essentially covered.

The Rollobehang 6 is in the retracted state on a winding shaft 7 wound up in one at the upper door sill of the door shaft 2 arranged roller blind cassette 70 is arranged. The winding shaft 7 opposite edge of the Rollobehangs 6 is with a Rollozugstab or "bow" 8th connected by the Rollobehang 6 against the effect of one with the winding shaft 7 connected and usually designed as a torsion spring drive from the winding shaft 7 is deducted to the door opening 3 cover.

Alternatively, instead of the winding shaft 7 only a container or a roller blind cassette are provided, the Rollobehang 6 folded folded in the unfolded state. The arrangement can be chosen so that the Rollobehang 6 only completely out of the roller blind cassette 70 withdrawn state is tightened by attachment of the lower and upper edge, for example via a clamping device.

To remove the blinds 6 from the winding shaft 7 or to pull out the Rollobehangs 6 from a rolled-up Rollobehang 6 receiving roller blind cassette 70 is the with the Rollozugstab or bow 8th connected, the winding shaft 7 or the roller blind cassette 70 opposite edge with a pressure and / or rigid push element 9 , usually in the form of a push rod, connected by means of an adjusting device 10 in the longitudinal direction of the motor vehicle door 1 is adjusted.

The adjusting device 10 for the push element 9 contains a circulating traction means and is formed for example in the manner of a single-strand cable window lifter. The adjusting device 10 has an electric motor roller blind 11 on, the electric motor 12 , a gearbox 13 for driving a cable drum 14 , a drive electronics 15 and a plug 16 for connection of the roller blind drive 11 to a control electronics of the motor vehicle or the motor vehicle door, in particular to a bus system containing. The adjusting device 10 also has a preferably tubular guide channel 20 on, via a dust and waterproof connection with a roller blind 11 Abkapselnden drive housing is connected.

In the guide channel 20 runs a traction device, for example, a toothed belt or the rope strands one on the cable drum 14 wound up Rolloseils 17 , according to 3 with a driver 18 is connected and on the roller blind 11 opposite end of the guide channel 20 over a rope deflection 19 is diverted. The driver 18 is with the pusher element 9 connected, so that when operating the roller blind 11 and consequent rotation of the cable drum 14 in one or the other direction of rotation of the driver 18 to the roller blind 11 or is moved away from it and thus the position of the thrust element 9 changed.

For fastening the adjusting device 10 on a base or mounting plate or on the door inner panel of the vehicle door 1 has the adjustment 10 on the drive housing of the roller blind drive 20 in relation to the guide channel 20 opposite fastening points 25 . 26 and the rope deflection 19 a central bore for performing a fastening means, in particular with the inner door panel of the motor vehicle door 1 is connected.

2 shows the upper end of the adjustment 10 according to 1 with the at the end of the guide channel 20 arranged roller blind 11 that the electric motor 12 , The gear 13 and the rope drum 14 includes on which the roller blind 17 is wound up. From the preferably tubular guide channel 20 projects with the Rollozugstab or bow 8th to be connected end of the pusher 9 according to the in 3 enlarged area shown III according to 2 with the driver 18 connected is. The ends of the roller blind 17 are via rope nipples 41 . 42 in shots of the driver 18 mounted so that when operating the roller blind drive 11 the driver 18 depending on the direction of rotation of the electric motor 12 in the guide channel 20 is moved up or down.

To limit the adjustment of the driver 18 and thus with the driver 18 connected thrust element 9 are at both ends of the adjustment of the driver 18 Mitnehmeranschläge provided, of which in the representation of the upper end of the adjusting in 3 the upper driver stop 51 is shown schematically.

To avoid excessive trapping forces in the critical areas at the top and bottom of the adjustment path of the roller blind 6 in which the one with the push element 9 connected braces 8th the gap of the roller blind cassette 70 through which the Rollobehang 6 from the winding shaft 7 is pulled off, or the Rollokassette 70 approaching window edge, a mechanical anti-trap is provided. This mechanical anti-trap protection not only enables a significant reduction of pinching force in the critical area but also a mechanical "soft start" with a lower load when the bow is attached to the window frame and a quieter reaching of the end position.

The mechanical anti-trap consists in the in the 2 and 3 illustrated embodiment of a helical compression spring 30 placed between the top of the driver 18 and an upper stationary spring stop 52 is arranged, whose distance from the upper Mitnehmeranschlag 51 in relation to the length of the compression spring 30 the range of action of the mechanical anti-trap protection, ie, the distance between the end positions of the bow 8th from the windowpane rim or the roller blind cassette 70 determined, from which there is a risk of entrapment.

The helically wound torsion spring 30 the mechanical anti-trap is in the illustrated embodiment on the pusher 9 attached, which is the compression spring 30 centered and thereby ensures that the compression spring 30 in the end position to the spring stop 52 invests.

The spring constant or spring characteristic of the compression spring 30 determined in conjunction with the compression travel of the compression spring 30 the spring force of the adjusting device 10 or the roller blind 11 Normally, for complete winding and unwinding of the Rollobehangs 6 until reaching the driver stop 51 is to be overcome or provided for receiving the excess force in Einklemmfall and thus limits the pinching force to allowable values.

In addition to the above with reference to the 2 and 3 described mechanical anti-trap at the top of the adjustment 10 can a similar mechanical anti-trap also at the lower end of the adjustment 10 be provided, which in an arrangement of the winding shaft or roller blind cassette 70 at the upper end of the adjustment 10 the excess force at an approach of the bow 8th or the Rollo hang 6 to the gap of the roller blind cassette 70 limited.

1

Motor vehicle door

2

door shaft

3

door cutout

4

windowpane

5

roller blind

6

Rollobehang

7

winding shaft

8th

Rollozugstab (Hoop)

9

push element (Retractable rod)

10

adjustment

11

Rollo drive

12

electric motor

13

transmission

14

Rollo cable drum

15

drive electronics

16

plug

17

Rollo rope

18

takeaway

19

Blind cable deflector

20

guide channel

25 26

attachment points

30

spring element (Compression spring)

41 42

cable nipple

51

driver stop

52

spring stop

70

Rollo cassette

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 102006047359 A1 [0004, 0008]

Claims (10)

Vehicle blind, in particular roller blind for motor vehicles, with a Rollobehang, which is connected to a pressure and / or rigid push element for mounting the Rollobehangs, and with a pushing element actuated adjusting device having a circulating traction means, in particular designed in the manner of a single-strand cable window lifter is, characterized in that the adjusting device ( 10 ) with a jamming protection device ( 18 . 30 . 51 . 52 ) connected is. Vehicle roller blind according to claim 1, characterized in that the anti-trap device consists of a mechanical anti-pinch protection ( 18 . 30 . 51 . 52 ) with a device for limiting an excess force, which is greater than one for adjusting the Rollobehangs ( 6 ) required adjusting force. Vehicle roller blind according to claim 2, characterized in that the adjusting device ( 10 ) one in an elongated guide channel ( 20 ) guided and displaceable driver ( 18 ), which with the pusher element ( 9 ) and one in the guide channel ( 20 ) circumferential roller blind ( 17 ), Timing belt or the like connected to a roller blind drive ( 11 ) and that the mechanical anti-trap protection ( 18 . 30 . 51 . 52 ) in the adjustment of the driver ( 18 ) is arranged. Vehicle blind according to claim 3, characterized in that the mechanical anti-trap protection ( 18 . 30 . 51 . 52 ) at least one spring element ( 30 ), in the adjustment of the driver ( 18 ) between the driver ( 18 ) and an upper and / or lower spring element stop ( 52 ) is arranged. Vehicle blind according to claim 4, characterized by in the adjustment of the driver ( 18 ) arranged upper and lower driving stops ( 51 ) for limiting the adjustment of the driver ( 18 ) and upper and lower spring element stops ( 52 ), which are so in relation to the Mitnehmeranschläge ( 51 ) and the dimensions of the spring elements ( 30 ) in the adjustment direction of the driver ( 18 ) are arranged, that the spring elements ( 30 ) for engagement with the spring element stops ( 52 ) come before the driver ( 18 ) at the upper or lower driver stop ( 51 ) strikes. Vehicle blind according to claim 4 or 5, characterized in that the spring elements ( 30 ) are designed as compression springs with adjustable spring characteristic. Vehicle blind according to one of claims 4 to 6, characterized in that the spring elements ( 30 ) are designed as spring assemblies with adjustable spring characteristic. Vehicle roller blind according to claim 6 or 7, characterized in that the upper spring element ( 30 ) formed as a helical compression spring and on the thrust element ( 9 ) between the driver ( 18 ) and the upper spring element stop ( 52 ) is attached Vehicle roller blind according to claim 6 or 7, characterized in that the spring elements ( 30 ) with the spring element stop ( 52 ) and / or the driver ( 18 ) are connected. Vehicle roller blind according to at least one of the preceding claims, characterized in that a first section of the roller blind curtain ( 6 ) with a winding shaft ( 7 ) and the first section of the Rollobehangs ( 6 ) opposite section with the thrust element ( 9 ), that the winding shaft ( 7 ) in a roller blind cassette ( 70 ) is rotatably mounted and that the Mitnehmeranschläge ( 51 ) in the adjustment of the driver ( 18 ) are arranged so that the driver ( 18 ) for engagement with the driver stops ( 51 ) comes before the Rollobehang ( 6 ) completely on the winding shaft ( 7 ) or completely wound by the winding shaft ( 7 ) is deducted.