CN114953936B

CN114953936B - Cable system for a protection device for a vehicle interior, cable tensioning device and protection device

Info

Publication number: CN114953936B
Application number: CN202110187241.1A
Authority: CN
Inventors: A·布库尔
Original assignee: BOS GmbH and Co KG
Current assignee: BOS GmbH and Co KG
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2024-10-01
Anticipated expiration: 2041-02-18
Also published as: CN114953936A

Abstract

Cable system for a protective device, cable tensioning device for such a cable system, and cable system for a protective device for a vehicle interior space having a protective device for such a cable system: having a guy cable which is turned around a turning roller while forming two strands which run at least partially parallel to one another to a great extent; and has a cable tensioning device associated with the cable. According to the invention, the cable tensioning device has a dimensionally stable guide structure, which has at least one inlet and at least one outlet for the two strands to pass through, and in which a tension compensation unit is provided, which is supported so as to be movable transversely to the strands in a floating manner between the two strands and which is permanently in contact with the two strands. The method is used in the sedan.

Description

Cable system for a protection device for a vehicle interior, cable tensioning device and protection device

Technical Field

The present invention relates to a cable system for a protection device for a vehicle interior, the cable system: having a guy cable which is turned around a turning roller while forming two strands which run at least partially parallel to one another to a great extent; and has a cable tensioning device associated with the cable. The invention further relates to a cable tensioning device for such a cable system and to a protection device for a vehicle interior having at least one cable system of the type described above.

Background

EP 2 028,053 A1 discloses a cable system for a cargo compartment flap of a vehicle interior, for which cable is turned 180 ° around a steering roller at the end side of a guide rail. Two strands are thus formed, which are articulated on opposite end regions of the guide rail in the region of the guide rail by means of a length adjustment device.

DE 10 2018 201 023 A1 discloses a cable system for a window lifter assembly of a door module of a vehicle interior of a passenger car. The cable system has a cable whose strands are preloaded in the region of the winding drum by means of a spacer-like and elastically flexible compensation element.

Disclosure of Invention

The object of the present invention is to provide a cable system, a cable tensioning device and a protection device of the type mentioned at the beginning, which allow a uniform and reliable function of the cable to be achieved in a simple manner.

For the cable system, this task is solved by: the cable tensioning device has a dimensionally stable guide structure which has at least one inlet and at least one outlet for the two strands to pass through, and in which a tension compensation unit is provided, which is supported so as to be movable transversely to the strands in a floating manner between the two strands and which is permanently in contact with the two strands. The guide structure can be configured as an open support structure or as a closed housing. The two strands are at least slightly turned in the region of the floating tension compensation unit. The tension compensation unit thus causes tension compensation on both strands simultaneously. Due to the permanent contact with the two strands and due to the floating support, a tension peak in one of the two strands necessarily causes a movement of the tension compensation unit and thus a force transmission onto the opposite strand. In this way, a uniform tension of the two strands can be permanently achieved, whereby a uniform tension is produced for the cable system during operation without tension drops or tension peaks. The solution according to the invention is provided in a particularly advantageous manner for a protection device in the form of a sun protection device, i.e. a shading device for a side window or a rear window or for a transparent roof area of a vehicle interior. Alternatively, the cable system is provided for a protection device in the form of a cargo compartment protection device, in particular for a cargo compartment cover or a cargo compartment separation device.

In one embodiment of the invention, the tension compensation unit has two compensation sections which can move in a limited manner relative to one another and are spring-loaded opposite to one another. The level of spring loading defines the level of tension that can be applied to the strand.

In a further embodiment of the invention, the spring loading of the compensation sections is formed by a mechanical spring device, which is operatively connected to the two compensation sections. The mechanical spring means can be formed by at least one elastomer element or by a metal spring, such as in particular at least one spiral spring or at least one leaf spring. The at least one coil spring or the at least one leaf spring can also be formed from a nonmetallic, elastically flexible material. A helical spring, preferably embodied as a compression spring, extends between the two compensation sections. The mechanical spring device is operatively connected to the two compensation sections, whereby a single spring device is sufficient for loading the two compensation sections.

In a further embodiment of the invention, the compensation section has a sliding or rolling surface along which the strands are guided. The strands are thereby slid along the respective guide surfaces of the compensation section or the respective guide surfaces are mounted in a rolling-movable manner, so that the guide surfaces rotate together in the respective direction when the respective abutted strands are moved.

In a further embodiment of the invention, the guide structure is configured as a housing having a housing cover which forms the linear guide and the inlet and outlet, and having a cover device which closes the housing cover in a particularly releasable manner. Thereby, easy mounting or dismounting of the tension compensation unit can be achieved. Furthermore, the guide structure is configured as a housing, which results in a compact and contamination-insensitive structure. The inlet and outlet for the strands can be either integrally formed on the housing cover or be configured as separate inlet or outlet connectors and secured to the housing cover.

In a further embodiment of the invention, the inlet and the outlet are provided with a holding receptacle for fixing a guide sleeve, which at least partially surrounds and guides the strand. The guide sleeve is in particular in the form of a bowden cable sleeve. The guide sleeve is capable of guiding the strand over at least a portion of its length for protecting the strand. The holding receptacle advantageously surrounds the guide sleeve for the strand in a force-fitting or form-fitting manner.

The object of the invention is achieved for a cable tensioning device of the type mentioned at the beginning by the features of claim 7. The cable tensioning device can be designed such that it can be installed later into an existing cable system. If the inlet and outlet are configured to open transversely to the direction of threading of the strands, the cable tensioning device can also be installed later in an already installed cable system. If the guide structure has a housing hood with releasable cover means, the housing hood can be provided with slits in the region of the inlet and outlet opening towards the cover means, through which slits the strands can be introduced. After the installation of the strands, the cover device can be fitted and the housing forming the guide structure can be closed. The cover device can be constructed as a single-component or multi-component structure.

The object of the invention is achieved for a protection device of the type mentioned at the beginning by the features of claim 8.

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 accompanying drawings.

Fig. 1 shows a perspective and schematic illustration of a side door of a passenger car, which is provided with an embodiment of the protection device according to the invention, with an embodiment of the cable system according to the invention and with an embodiment of the cable tensioning device according to the invention on the side facing the interior of the vehicle;

fig. 2 shows an enlarged cross-section of one of the two cable tensioning devices in a first functional position in section II according to fig. 1;

fig. 3 shows the cable tensioning device according to fig. 2 in a further functional position;

fig. 4 shows a further embodiment of the cable tensioning device according to the invention similar to fig. 2 and 3 in an enlarged sectional view; and

Fig. 5 shows the cable tensioning device according to fig. 4 in a perspective view.

Detailed Description

The passenger car has two front seats and a rear seat arrangement of at least two rear seats in the interior of the vehicle. Not only the front row seats but also the rear row seats can be accessed through the side doors of the car. The side door for the rear seat is also called a rear side door. Such a rear side door 1, which is the left rear side door 1 seen in the normal direction of travel of the passenger car, is shown in fig. 1. The rear side door 1 is provided with a side window glass, not shown in detail, which can be concealed by means of a protective device in the form of a shading device 2. The shading device 2 has a flexible shading structure 3 which is held in a reelable and expandable manner on a rotatably supported reel in a cassette housing. The cassette case 4 is fixed to the door inner side below the door belt line. The shading formations 3 are movable in a vertical direction between a shading position shown in fig. 1 and a rest position in which they are wound onto reels inside the cassette housing 4. In order to be able to move the shading structure 3 between a rest position and a shading position, the shading structure 3 is provided with a form-stable pull-out profile 5 at its front end region in the pull-out direction. The pull-out profile 5 can be displaced in the vertical direction in a linear guide 5a fastened to the vehicle door. In this case, the pull-out profile 5 is provided with a slide, not shown in detail, in the region of the left linear guide 5b and with a further slide, also not shown in detail, in the region of the right linear guide 5 a. The linear guides 5a and 5b have a track profile complementary to the slide for achieving longitudinal mobility of the slide inside the track profile of the linear guides 5a and 5 b. The winding force of the winding spring integrated in the winding shaft acts on the shading structure 3 in the winding direction and thus in the direction of the rest position. In a variant according to the invention, the reel can be applied without a winding spring. In this variant, not shown, the rotational movement of the winding shaft in the winding direction of the shade formation 3 is effected by other means, in particular by a cable drum.

The slide of the two linear guides 5a and 5b, which is associated with the pull-out profile 5, is coupled to a cable system, which in the illustrated embodiment comprises two cables 7a and 7b, one cable 7a being laid along the linear guide 5a and the other cable 7b being laid along the linear guide 5 b. Each cable system 7a, 7b has a traction cable which is deflected by a deflection roller 8a, 8b on the upper end region of the respective linear guide 5a, 5b, whereby each cable 7a, 7b forms two strands which are substantially parallel to one another. The strand is guided in the guide sleeve at least partially according to the style of the bowden traction system. The two guys are held in the region of the drive mechanism 6 in a manner not shown on at least one guy tube which can be driven by an electric motor of the drive mechanism 6. The drive mechanism 6 enables synchronous drive of the two guys 7a and 7b, so that the slides of the pull-out profile 5 can be moved parallel to each other and synchronously inside the linear guides 5a and 5 b. This necessarily results in a parallel displacement of the pull-out profile 5 between a rest position of the shading formation 3, in which the pull-out profile 5 enters into the pull-out gap of the cassette housing, and a shading position according to fig. 1, in which the pull-out profile 5 is positioned in the region of the upper edge of the door frame of the rear side door 1, which defines the side window.

In order to apply a permanently uniform tension to the two cables 7a and 7b, a cable tensioning device 10a, 10b is assigned to each cable 7a and 7b, which is described in detail below with reference to fig. 2 and 3. The two cable tensioning devices 10a and 10b for the respective cable 7a, 7b are constructed identically to one another, so that only one cable tensioning device 10a, 10b has to be described in detail below. The description applies in the same way to the other cable tensioning device 10a, 10 b. The two cable tensioning devices 10a and 10b each have a housing G, wherein the housings G are mounted next to one another in the illustration according to fig. 1, so that only the upper housing G in the drawing plane is visible in fig. 1.

The housing G according to fig. 2 and 3 is made of plastic and has a housing cover in which a bottom-side guide plane 17 is arranged transversely to the longitudinal extension of the strands, which guide plane has a guide channel 23 on each side. The guide channel 23 has a guide channel which opens into the center and thus into the opposite guide channel 23 and in which the two slider sections 18, 19 of the tension compensation unit can be supported in a linearly displaceable manner. The slider sections 18 and 19 form compensation sections in the sense of the invention. Each of the slide segments 18, 19 has, on its opposite outer side, a guide rib, not shown in detail, which is guided in a guide channel 23. Alternatively or additionally, a preferably cylindrical guide contour can be integrated in the housing G in the region of the guide plane, which guide contour penetrates the slider sections 18, 19 for improving the desired linear guidance transversely to the longitudinal extension of the strand.

The two slider sections 18 and 19 are coupled to one another by means of limiting webs 21 and 22, wherein the slider sections 18, 19 can be moved with respect to one another in a limited manner. The limiting sections 21 and 22 define end stops for preventing the slider sections 18, 19 from being released from each other. Between the two slider sections 18 and 19, a helical compression spring 20 extends, which represents a mechanical spring device in the sense of the invention. The two slide arrangements 18, 19 are thereby permanently spring-loaded against one another. Thus, without additional external load, the helical compression spring 20 presses the slider segments 18, 19 against one another in the outer end position, i.e. into the position in which the limiting segments 21 and 22 rest against one another with the support lugs respectively engaging one another. For this purpose, each of the limiting sections 21, 22 has, on the one hand, a spacer bead extending from the respective slide section 18, 19 in the direction of linear displacement, which spacer bead engages, on the end side, with the aid of a spacer lug in a non-illustrated guide groove of the other spacer bead.

As can be seen from fig. 2 and 3, the two guide channels 23 are provided in the central region with an upwardly open mounting recess 24 through which the slide segment 18 can be inserted for assembly or disassembly and removed again.

After the strands 11, 12 and the tension compensation unit have been installed in the interior of the housing G in a functionally ready manner, the housing G is closed by means of an upwardly open housing cover, which is shown in fig. 2 and 3, by means of a cap device, which is not shown. The cover means can be releasably secured to the housing cover for re-accessing the interior of the housing cover.

The two slide segments 18, 19 have, on their outer end faces facing the housing wall of the housing G, a slit-like or groove-like outwardly open cable guide channel into which the cable strands 11, 12 of the cable 7a, 7b each engage in a sliding-movable manner. For threading the strands 11, 12 of the respective cable 7a, 7b, the housing has two inlets and two outlets which are arranged on opposite sides of the housing G transversely to the direction of linear movement of the tension compensation unit. Each inlet and each outlet is formed by a channel in the housing wall, respectively. Furthermore, each inlet and each outlet is assigned a holding receptacle 13 to 16 for a respective guide sleeve of the strand 11, 12 of the cable 7a, 7 b. These holding receptacles 15 and 16 are formed on the outer side of the housing G and have clamping sections by means of which the guide sleeves are secured in a force-locking manner to the holding receptacles 13 to 16. As can be seen from fig. 2 and 3, the housing G has circular-arc-shaped deflector parts on the inner sides of the inlet and outlet openings, which are provided to ensure a defined deflection radius for the strands 11, 12 when introducing and removing the strands 11, 12.

Depending on the direction in which tension is applied to the respective cable 7a, 7b by the drive mechanism 6, either one of the strands 11 or the other strand 12 is subjected to a tensile load. Accordingly, in the pulling-out movement of the pull-out profile 5 from the rest position in the direction of the shading position, a tensile force is correspondingly applied to one strand 11, 12 and in the opposite movement of the pull-out profile from the shading position in the direction of the rest position, a tensile load is applied to the other strand 11, 12 as a result of the necessary driving reversal of the drive mechanism 6. The tensile force acting on one of the two strands 11, 12 during the driving movement by the drive mechanism 6 is thus always higher than the tensile force acting on the other strand 11, 12. In the illustration according to fig. 2, an increased tension is applied to the right strand 12, while in the illustration according to fig. 3, an increased tension is applied to the left strand 11. The tension compensation unit, which is formed by the two slider sections 18 and 19 with the helical compression spring 20 located therebetween, is thus displaced in a linearly movable manner inside the housing G, respectively, as a result of its floating support transversely to the pulling direction of the strands 11, 12, as shown in fig. 2 and 3. The spring pressure of the helical compression spring 20 is selected such that the slider sections 18, 19 are never in the end stop position relative to one another when the strands 11, 12 are subjected to a corresponding tensile load. This means that the slider sections 18, 19 are also arranged in a floating manner relative to one another, so that in the region of contact on the slider sections 18, 19 transversely to the cable pulling direction only the pressure of the helical compression spring 20 acts on the respective cable strand 11, 12 in each case perpendicularly to the cable pulling direction. The helical compression spring 20 has a linear spring characteristic, wherein the compression spring force increases with a displacement by which the slider sections 18, 19 are pressed against one another. The helical compression spring 20 is coordinated with respect to its spring force and with respect to its spring characteristic curve with the occurring tension of the respective cable 7a, 7 b.

As an alternative to the cable tensioning device 10a, 10b according to fig. 2 and 3, the protection device according to the invention according to fig. 1 can also have a cable system with two cables 7'a and 7' b, to which cable tensioning devices 10'a, 10' b according to fig. 4 and 5, respectively, are assigned. With respect to construction and function, such cable tensioners 10'a and 10' b are largely identical to the previously described cable tensioners 10a, 10 b. Thus, identical parts and sections of the cable tensioner 10'a, 10' b are provided with the same reference numerals as the cable tensioner 10a, 10b, with the addition of a prime. Reference is made to the explanation of the cable tensioning device 10a, 10b according to fig. 1 to 3 in order to avoid repetition. Only the differences between the cable tensioning devices 10'a, 10' b will be discussed below.

For the cable tensioning devices 10a, 10b according to fig. 2 and 3, the slide segments 18 and 19 are provided with groove-like or slot-like, outwardly open and arc-shaped curved cable guide channels which form the sliding surfaces for the strands 11, 12. In the case of the cable tensioning devices 10' a, 10' b according to fig. 4 and 5, the slider section 18' has an annular cable guide channel which is arranged on the outer circumference of the rotationally movable wheel disk or roller, respectively. The slider segments 18 'and 19' are provided with a cylindrical main journal, to which two rotationally movable annular disks are rotatably mounted. Each annular strand guide channel of the respective wheel disk for the respective strand 11', 12' thus forms a rolling surface in the sense of the invention with the section of the strand guide channel guiding the respective strand 11', 12'. Since the respective strand 11', 12' does not slide in the corresponding annular groove of the respective freely rotatable wheel disk, but instead drives the respective wheel disk in the respective direction of rotation, a rolling bearing is produced for the respective strand.

Furthermore, the cable tensioning device 10' a, 10' b differs from the previously described cable tensioning device 10a, 10b in that the holding receptacles 13' to 16', which are molded onto the housing G ', are each arranged in pairs relative to one another at a larger distance than the holding receptacles 13 to 16. Furthermore, the respective adjacent holding receptacles 15', 16' and 13', 14' are each connected to one another in one piece by means of a transverse web, which is not shown in more detail, which is also molded in one piece on the outer edge of the housing G '.

The slide segments 18', 19' are supported in a centered manner on the cylindrical guide contour of the guide plane 17' in such a way that they can move linearly independently of one another. This results in a floating support of the slider segments 18', 19'. The slider sections 18', 19' are coupled by a helical compression spring 20' acting as a spring device, which acts to some extent as a buffer between the two slider sections. The opposite ends of the helical compression springs 20' are each supported on the end face of the respective slide segment 18', 19 '. The helical compression spring 20' is permanently prestressed during operation of the cable tensioning device 10' a, 10' b, since the two floating supported slider sections 18', 19' are permanently subjected to a force loading toward the center due to the cable strands 11', 12' respectively encircling the outer side and the corresponding cable tension.

The right-hand wheel disk of the slider section 19' is omitted for the illustration of the slider function of the slider sections 18', 19' and for the illustration of the swivel bearing function for the annular wheel disk, so that the main journal for this wheel rib can be clearly seen.

Claims

1. Cable system for a protection device for a vehicle interior space: comprising a cable (7 a, 7b;7'a, 7' b) which is deflected around a deflection roller (8 a, 8b;8'a, 8' b) in the form of two strands (11, 12;11', 12') which extend at least partially parallel to one another to a great extent; and having a cable tensioning device (10 a, 10b;10'a, 10' b) associated with the cable (7 a, 7b;7'a, 7' b), characterized in that the cable tensioning device (10 a, 10b;10'a, 10' b) has a dimensionally stable guide structure which has in each case at least one inlet and at least one outlet for the passage of two strands (11, 12;11', 12'), and in which a tension compensation unit is provided, which is supported so as to be movable transversely to the strands (11, 12;11', 12') in a floating manner between the two strands (11, 12;11', 12') and which is permanently in contact with the two strands (11, 12;11', 12'),

The tension compensation unit has two compensation sections (18, 19;18', 19') which are able to move in a limited manner relative to one another and are subjected to spring forces in opposition to one another.

2. A cable system according to claim 1, characterized in that the spring loading of the compensation sections (18, 19;18', 19 ') is formed by mechanical spring means (20; 20 ') operatively connected to the two compensation sections (18, 19;18', 19 ').

3. The guy system according to claim 1 or 2, characterized in that the compensating section (18, 19;18', 19') has a sliding or rolling surface along which the strands (11, 12;11', 12') are guided.

4. A cable system according to claim 1 or 2, wherein the guide structure has a linear guide mechanism for the tension compensation unit.

5. A cable system according to claim 1 or 2, characterized in that the guide structure is configured as a housing (G; G') having a housing cover constituting the linear guide mechanism and the inlet and outlet and having cover means closing the housing cover in a releasable manner.

6. A cable system according to claim 1 or 2, wherein the inlet and outlet are provided with retaining receptacles (13 to 16;13 'to 16') for securing a guide sleeve, which at least partly encloses and guides the strand.

7. Cable tensioning device for a cable system according to any one of the preceding claims 1 to 6, having a dimensionally stable guide structure, which has in each case at least one inlet and at least one outlet for at least two strands (11, 12;11', 12') to pass through and in which a tension compensation unit is supported so as to be movable in a floating manner transversely to the strands (11, 12;11', 12') between the two strands (11, 12;11', 12'), said tension compensation unit being permanently in contact with the two strands (11, 12;11', 12') in the installed functional state.

8. Protection device for a vehicle interior space, having at least one cable system according to one of claims 1 to 6.