CN113382884B

CN113382884B - Drive system for a roof system of a motor vehicle

Info

Publication number: CN113382884B
Application number: CN201980088570.1A
Authority: CN
Inventors: M·海丹; M·马奎特
Original assignee: BOS GmbH and Co KG
Current assignee: BOS GmbH and Co KG
Priority date: 2019-01-11
Filing date: 2019-11-29
Publication date: 2023-06-20
Anticipated expiration: 2039-11-29
Also published as: WO2020143956A1; DE102019200264A1; CN113382884A

Abstract

The invention relates to a drive system (6) having a support bar (7) which can be connected to a movable cover part (2); with a control mechanism engaged at the support bar for displacing the support bar (7) between a closed position, a venting position and an open position; and having a guide rail device (8), in which the control mechanism is guided in a longitudinally movable manner, wherein the control mechanism has a rear movable lever (15) which is connected to the support bar (7) by means of a control slide (10) and which is mounted in a swingable manner between a rest position and a movable position, wherein the movable lever (15) is mounted in a swingable manner on a control slide (19) which can be moved in the longitudinal direction of the guide rail device (8), and wherein the guide rail device (8) has a stationary control contour in the rear region, which cooperates with a control pin (18) arranged at the movable lever (15) in such a way that the movable lever (15) is guided in a forced manner up or down as a function of the direction of travel of the control slide (19).

Description

Drive system for a roof system of a motor vehicle

Technical Field

The invention relates to a drive system for a roof system of a motor vehicle, comprising a support bar which can be connected to a movable roof part; with a control mechanism engaged at the support bar for displacement of the support bar between a closed position, a venting position and an open position; and a guide rail device in which the control mechanism is guided in a longitudinally running manner, wherein the control mechanism has a rear movable lever which is connected to the support bar by means of a control slide and which is mounted in a pivotable manner between a rest position and a movable position. The invention further relates to a roof system for a motor vehicle with such a drive system.

Background

A roof system for a passenger vehicle is known from DE 10 2017 207 893 A1, which has movable roof parts. The movable roof member is movably supported between a closed position closing the roof section, an inclined vent position and an open position opening the roof section. In order to be able to travel into the desired position, the cover part is assigned two drive systems on opposite sides, which are designed identically to one another in terms of function and are driven synchronously with one another by means of a central electric drive motor. Each drive system has a brace bar laterally secured at the movable cover member. For the positively guided displacement of the support bar, a control mechanism is provided, which engages at the support bar and is guided in a longitudinally running manner in a guide rail arrangement fixed to the roof. The control mechanism has a rear movable lever mounted in a rotationally fixed manner in the bottom of the rail device, which is pivotally connected to a control slide at its upper end region, which surrounds the web guide of the support bar in a sliding manner. The lower pivot bearing of the movable lever projects downward beyond the bottom of the guide rail arrangement.

Disclosure of Invention

The task of the invention is: a drive system and a deflector cap system of the type mentioned at the outset are achieved, which require a reduced constructional height.

For the drive system, this task is solved by: the movable lever is mounted on a control slide that can travel in the longitudinal direction of the rail arrangement in a pivotable manner, and is assigned a mechanical positive control that displaces the movable lever between a rest position and a movable position as a function of the travel movement of the control slide. In contrast to the prior art, the space for the pivot support of the movable lever below the guide rail arrangement is thus not necessary. The drive system is arranged in a roof system of a passenger car. The drive system according to the invention is subordinate to the side of the movable roof part of the deflector roof system. Another drive system is slaved to the opposite side of the movable cover member. The two drive systems are designed mirror-symmetrically with respect to the vertical vehicle center longitudinal plane, but otherwise identical to each other. The opposing drive systems are driven synchronously with each other by means of an electric drive unit and the respective drive transmission, preferably in the form of a threaded pitch cable or a flexible toothed rack, in order to achieve the desired parallel displacement of the movable roof part.

In the embodiment of the invention, it is provided that: the mechanical positive control has a fixed control contour in the rear region of the rail arrangement and a control pin arranged at the movable lever, which interact complementarily in such a way that the movable lever is positively guided up or down depending on the direction of travel of the control slide.

In a further embodiment of the invention, the movable lever is guided in its rest position in a downward-movable manner and in its active position in a upward-movable manner relative to the orientation of the rail device. In contrast to the prior art, the movable lever swings back and down at the control slide in its rest position. For the conversion into its active position, the movable lever is pivoted forward and upward until the movable lever is oriented at least largely in the vertical direction. The corresponding pivoting movement of the movable lever is positively guided by the driving movement of the control slide and the insertion of the control pin of the movable lever into the fixed-position control contour.

In a further embodiment of the invention, the control contour is designed as an arcuate control slot in a control element fastened to the rail arrangement. The arcuate control slot is arranged laterally to the travel path of the control slide and of the movable lever, and the control pin projects horizontally with reference to the vertical pivot plane of the movable lever and to the side facing the control slot. In an advantageous manner, the pivot plane of the movable lever is oriented in the vertical and longitudinal directions of the rail arrangement with reference to the coordinate system of the rail arrangement. With such an orientation, the control pin protrudes in a lateral direction from the movable bar towards the control slot. The arcuate control slot is open at the front end in the longitudinal direction of the rail device, in order to enable a necessary insertion of the control pin of the movable lever into the front end region during the driving movement of the control slide.

In a further embodiment of the invention, the control slot forms an arch starting at the front and lower side and ending at the upper and rear side, as seen in the longitudinal direction of the rail device. The arch is thus continuously bent back and up in an arcuate manner starting from the front, lower front end region. The control pin is held in the control slot as long as the control slide is in the rear functional end position.

In a further embodiment of the invention, the control slot is open in the transverse direction of the rail arrangement toward the middle of the rail arrangement, and the control slot cooperates complementarily in terms of its dimensions with the control pin of the movable lever in such a way that the control pin is guided in a linearly movable manner along a curve defined by the arch. In addition, the lower, front end region of the control slot is open in the longitudinal direction of the rail arrangement, so that insertion of the control pin and thus latching of the control pin can be effected in the event of a corresponding rearward driving movement of the control slide.

In a further embodiment of the invention, the control element is designed as a one-piece plastic element. The control member is fixedly connected with the rail arrangement. For this purpose, receiving and holding regions are preferably provided in the side walls and/or the bottom wall of the rail arrangement.

The object of the invention is achieved by providing at least one drive system according to the embodiments described above for a deflector cap system.

Drawings

Further advantages and features of the invention result from the claims and from the following description of preferred embodiments of the invention, which are shown in accordance with the accompanying drawings. Wherein:

FIG. 1 illustrates an embodiment of a deflector cap system with a movable cap member in a venting position in accordance with the present invention;

fig. 2 to 4 show in perspective views a drive system for the deflector cap system according to fig. 1 in a closed position, a ventilation position and an open position of the movable cap part;

fig. 5 to 7 show the drive system according to fig. 2 to 4 in a further perspective view and likewise in three different functional positions similar to fig. 2 to 4;

fig. 8 shows the drive system according to fig. 2 to 4 in a perspective exploded view;

fig. 9 shows an exploded view of the drive system according to fig. 8 in a further view;

fig. 10 shows a partial region of the drive system according to fig. 2 to 9 in a top view;

FIG. 11 shows a cross-sectional view along section line X-X in FIG. 10; and is also provided with

Fig. 12 shows a partial region of the drive system in the open position according to fig. 4 and 7 in a further sectional illustration similar to fig. 11.

Detailed Description

The roof system 1 according to fig. 1 is provided for a roof region of a passenger vehicle. In the roof region, the vehicle body of the passenger vehicle is blanked in order to enable the roof system 1 to be inserted and fastened. The deflector roof system 1 has a movable, dimensionally stable roof element 2 which is provided to cover an open area of the deflector roof system 1, which is not shown in detail. The deflector cap system 1 is preassembled as a separate cap module. For this purpose, a support frame 3 is provided, which has a fixed, dimensionally stable top section 4 in the rear region and a front cover 5 in the front region, which is likewise firmly connected to the support frame 3. Below the front cover 5, a central electric drive unit is provided at the support frame 3, which drives two drive systems via respective drive trains, which are assigned to opposite longitudinal sides of the support frame 3 and serve to displace the movable roof part 2 synchronously between a closed position, a ventilation position shown in fig. 1 and an open position. In the embodiment shown, a flexible threaded pitch cable is provided as drive train, which can be displaced by means of a suitable transmission mechanism in a linearly movable manner in opposite directions by means of a centered electric drive unit. The two opposite drive systems for synchronously displacing the movable cover part 2 are functionally identical to one another. Hereinafter, the drive system 6, which is seen to the left in the normal driving direction of the passenger car, is described with reference to fig. 2 to 12. The embodiment of the drive system shown is in the same way suitable for an opposite, not shown drive system. The movable cover part 2 in its open position runs back over the fixed top section 4 and protrudes largely freely back above the top section 4.

The drive system 6 has a support bar 7 which extends in the longitudinal direction of the vehicle in the assembled state and is shown as a bar profile oriented substantially vertically. In the state ready for assembly, the support bar 7 is fastened to the lateral support by means of a screw connection in the region of the underside of the movable roof part 2 and is thus firmly connected to the movable roof part. The support bar has, in the region of its underside, a rectangular, outwardly projecting web guide 13 which extends over the majority of the length of the support bar 7. The tab guide 13 is integrally formed from the support bar 7 by cold forming. In the front region, the support bar 7 is provided with

control cams

11, 12, 14 projecting outwards in the vehicle transverse direction, wherein the two control cams 11 and 14 cooperate with a control slide, not shown in detail, of a drive slide 9, which is movable longitudinally in the guide rail arrangement 8. The drive transmission system described above is connected to the drive slide 9, so that a driving movement of the control slide 9 along the guide rail arrangement 8 is necessarily achieved when the drive transmission system is moved linearly by activating the central electric drive unit. The control slide of the drive slide 9 is connected to the control cams 11, 14 for: the support bar 7 is driven during the driving movement of the drive slide 9 and the support bar 7 is additionally displaced in the vertical direction. The double guide cam 12 on the front side is provided for: on the one hand, it is possible to travel along a curve section (not shown in detail) on the front side of the rail device 8 and on the other hand on a guide track of the rail device 8 extending in the longitudinal direction of the vehicle. The guide rail arrangement 8 is part of the support frame 3 of the deflector cap system 1 and is thus firmly connected to the support frame 3.

The rearward region of the support bar 7 is supported by a rearward movable bar 15. The movable lever 15 is mounted on the control slide 19 in a pivotable manner about a pivot bearing 26 by means of a pivot bearing point 17 located below. The movable lever 15 is mounted in a pivotable manner in a vertical longitudinal plane of the vehicle, when viewed in the state ready for assembly. This corresponds to the longitudinal plane of the rail arrangement 8 extending in the vertical and longitudinal direction of the orientation of the rail arrangement 8. The movable lever 15 has an upper pivot bearing point 16 spaced apart from a lower pivot bearing point 17, which is arranged at an end region of the movable lever 15 opposite the lower pivot bearing point 17. The movable lever 15 is mounted on the control slide 10 by means of the upper pivot bearing point 16 in a pivotable manner, said control slide surrounding the web guide 13 in a linearly movable manner in the longitudinal direction of the support bar 7. The support bar 7 can thus be displaced in the control slide 10 by means of its web guide 13. The web guide 13 has a curvature to a certain extent, which, as can be seen well in fig. 8 at the right-hand, rear region of the support bar 7, is tracked by the pivoting movement of the control slide 10 relative to the movable lever 15 by a corresponding tilting movement about its pivot axis.

The control slide 19 is guided in a linearly movable manner in a corresponding guide channel of the guide rail arrangement 8 by means of a slide body which is not shown in detail. A coupling lever 20 extending forward toward the drive slide 9 is engaged on the control slide 19, which coupling lever can be connected by means of a coupling mechanism 21 either with a receptacle 24 of the drive slide 9 or with a support 22 of the guide rail arrangement 8 in a form-locking manner. The support 22 is positioned in a position-fixed manner relative to the rail device 8 in the front region of the rail device 8. The coupling rod 20 comprises a coupling means 21 that can be displaced in a longitudinally movable manner in a guide track of the rail arrangement 8, which guide track is not shown in detail. The coupling lever 20 is connected in a fixed position to the guide rail arrangement 8 or firmly to the drive slide 9, depending on whether the coupling means 21 is connected releasably to the receptacle 24 of the drive slide 9 or to the support 22. In the case of a fixedly secured coupling lever 20, the control slide 19 of the rear movable lever 15, which is firmly connected to the coupling lever 20, is also positively positioned in the guide rail arrangement 8 by means of the coupling mechanism 21. When the coupling means 21 is coupled to the receptacle 24 of the drive slide 9, they are necessarily driven during the displacement movement of the drive slide 9 and thus also drive the control slide 19 in the respective same direction.

As can be seen from fig. 8 and 9 and fig. 10 to 12: with reference to the functional orientation of the guide rail arrangement 8 within the support frame 3 of the deflector roof system 1, the movable lever 15 is pivoted back and downward in its lower rest position. In this rest position, the movable lever 15 thus extends largely back in the longitudinal direction, to a certain extent horizontally, around its underlying pivot bearing point 17 in the region of the pivot bearing 26. As can be seen from fig. 11: the movable lever 15 is inclined upward at a small angle in this rest position. Since the control slide 10 rests on the control slide 19 in the rest position of the movable lever 15, the movable lever 15 is held stably in this rest position.

As can be seen from fig. 9: the movable lever 15 is assigned a stationary control member 25 which is provided with an arcuate control slot 27. The control members 25 are fastened at the respective wall sections of the rail arrangement 8. The arcuate control groove 27 is formed in the control element 25, which is composed of plastic, as a control groove which opens in the transverse direction inwardly toward the middle of the rail device 8, and is additionally open in the longitudinal direction of the rail device 8 at the front end region 28. The control slot 27 has a free cross section which is at least largely rectangular. The free cross section of the control slot 27 is matched to the dimensions of the control pin 18, which is firmly connected to the movable lever 15 and protrudes from the movable lever 15 in the transverse direction, that is to say parallel to the respective pivot axes of the lower pivot point 17 and of the upper pivot point 16. The control pin 18 is positioned at the movable lever 15 in such a way that, when the control slide 19 runs backwards in the longitudinal direction of the rail arrangement 8, the control pin 18 in the rest position of the movable lever 15 is necessarily inserted into the front end opening 28 of the front side of the control slot 27 of the control member 25. Since the free cross section of the control slot 27 is matched to the dimensions of the control pin 18, the control pin 18 is guided in the control slot 27 in a linearly movable manner. In the exemplary embodiment shown, the control pin 18 is embodied cylindrically. The control slot 27 constitutes a mechanically positive control for the control pin 18 and thus for the movable lever 15.

During the driving movement of the control slide 19, either at initial start-up or during normal operating functions, the control pin 18 is inserted back into the control slot 27 of the control element 25 and guided back and up along the arcuate guide. The movable bar 15 is thereby necessarily raised until it remains in the end position according to fig. 12. The control pin 18 here enters a likewise open front end region above the control slot 27. As can be seen from fig. 12: the control pin 18 is also in this position still caught in the control slot 27, so that the movable lever 15 is stably and fixedly supported in this continuous active position. The control pin 18 is slidably mounted in the control slot 27 without play, so that a linear guidance of the control pin 18 takes place in the longitudinal direction of the arcuate guide of the control slot 27.

When the coupling lever 20 is coupled to the drive slide 9 via the coupling mechanism 21, the control slide 19 is driven in the longitudinal direction of the rail device 8 via the coupling lever 20.

The way in which the drive system 6 functions is explained in the following.

Starting from the closed position according to fig. 2 and 5, the drive slide 9 travels back from a front-side starting position in the longitudinal direction of the rail device 8 by means of a drive train and a centered electric drive unit. The coupling rod 20 is coupled to the drive slider 9 via the coupling mechanism 21. The double guide cams 12 of the front side of the support bar 7 slide obliquely upward and rearward along the arc-shaped guide rails of the front side. At the same time, the obliquely extending control slide in the drive slide 9 results in: the control cams 11 and 14 of the support bar 7 likewise move upwards. Since the drive slide 9 is coupled to the control slide 19 via the coupling lever 20, the control slide 19 also runs backwards, as a result of which the control pin 18 is displaced backwards and upwards in the control slot 27. As a result, the movable lever 15 is necessarily moved upwards at least to a large extent in the vertical direction (fig. 12), whereby the rear part of the support bar 7 is lifted into the ventilation position. The further, slightly rearward driving movement of the drive slide 9 results in: the coupling means 21 are pressed into the carrier 22 of the rail arrangement 8. The bracket 22 is a plastic member which is fastened in a recess 23 in the side wall of the rail arrangement 8. As a result, the coupling means 21 is fixed in position to the rail device 8, whereby the control slide 19 is also fixed in a fixed manner relative to the rail device 8 by the connection via the coupling lever 20. The coupling lever 20 and the coupling mechanism 21 are held in a fixed position in which the position is fixed, while the drive slide 9 travels further rearward. Here, the double guide cams 12, which travel along the inclined arc-shaped guide rail upwards at the front end of the guide rail arrangement 8, lift the support bar 7 together with the control cams 11 and 14 and the control slide in the drive slide 9 also upwards in the front region thereof. The control cam 14 remains engaged in the control slide of the drive slide 9 during a further driving movement of the drive slide 9, while the rear control cam 11 protrudes freely upwards above the drive slide 9. The front region of the support bar 7 is thus additionally kept positively coupled to the drive slide 9, so that a further rearward travel movement of the drive slide 9 necessarily also brings the support bar 7 rearward. Since the movable lever 15 is blocked in a fixed position in the active position, the tab guide 13 slides through the control slide 10 until the open position according to fig. 4 and 7 is produced. As can be inferred from fig. 12, in this open position the drive slide 9 rests against the control slide 19.

If the movable cover part should be returned from this open position into its closed position again, the drive slide 9 is driven in the correspondingly opposite longitudinal direction. As soon as the drive slide 9 again reaches the coupling means 21, the drive slide 9 again brings about the coupling means 21 by means of a follow-up inclination in the region of the receptacle 24, whereby the coupling means 21 inevitably again moves away from the support 22 in the transverse direction. By bringing the coupling means 21 with the drive slide 9, the control slide 19 is also pulled forward again, whereby the control pin 18 slides down and forward again in the control slot 27 along and, consequently, the movable lever 15 is returned again into its rest position.

In the exemplary embodiment shown, the path of the control slide 19, through which the control slide 19 passes before the coupling means 21 is fastened in the stationary support 22, is designed so small that the control pin 18 is permanently held in the control slot 27 of the control member 25. The path taken by the control slide 19 thus corresponds to the path taken by the drive slide 9 from its forward end position to an intermediate position in which the coupling means 21 is transferred to the stationary support 22. The design scheme has the following advantages: the front end region 28 of the control slot 27 does not have to be used as a receiving opening in order to catch and receive the control pin 18 during the rearward travel movement of the control slide 19.

Claims

1. A drive system (6) for a roof system (1) of a motor vehicle, comprising a support bar (7) which can be connected to a movable roof part (2); with a control mechanism engaged at the support bar (7) for displacement of the support bar (7) between a closed position, a ventilation position and an open position; and having a guide rail device (8) in which the control mechanism is guided in a longitudinally running manner, wherein the control mechanism has a rear movable lever (15) which is connected to the support bar (7) by means of a control slide (10) and which is mounted in a swingable manner between a rest position and a movable position, characterized in that the movable lever (15) is mounted in a swingable manner on a control slide (19) which can be moved in the longitudinal direction of the guide rail device (8), and that the movable lever (15) is assigned a mechanically positive control which displaces the movable lever (15) between the rest position and the movable position as a function of the movement of the control slide (19),

wherein a coupling lever (20) extending forward toward the drive slide (9) is engaged at the control slide (19), said coupling lever being able to be connected in a form-locking manner by means of a coupling mechanism (21) either to a receptacle (24) of the drive slide (9) or to a support (22) of the guide rail arrangement (8),

wherein the coupling mechanism (21) is releasably connected to the receiving portion (24) of the drive slider (9) or to the support (22), and the coupling lever (20) is firmly connected to the drive slider (9) when the coupling mechanism (21) is connected to the receiving portion (24) of the drive slider (9); when the coupling mechanism (21) is connected with the bracket (22), the coupling pull rod (20) is fixed relative to the guide rail device (8),

in the case of a stationary coupling lever (20), the control slide (19) of the rear movable lever (15), which is firmly connected to the coupling lever (20), is also necessarily positioned stationary in the guide rail arrangement (8) by means of the coupling mechanism (21); when the coupling means (21) is coupled to the receptacle (24) of the drive slide (9), the coupling means are necessarily driven during the displacement movement of the drive slide (9) and thus also drive the control slide (19) in the respective same direction.

2. Drive system according to claim 1, characterized in that the mechanical positive control has a fixed control contour in the region behind the guide rail arrangement (8) and a control pin (18) arranged at the movable lever, which interact complementarily in such a way that the movable lever (15) is positively guided in a lifting or lowering direction depending on the direction of travel of the control slide (19).

3. Drive system according to claim 1 or 2, characterized in that the movable bar (15) is guided downward into its rest position and upward into its active position relative to the orientation of the rail arrangement (8).

4. A drive system according to claim 2, characterized in that the control profile is designed as an arcuate control slot (27) in a control member (25) fastened at the rail arrangement (8).

5. A drive system according to claim 4, characterized in that the control slot (27) constitutes an arch starting at the front and below and ending at the top and rear, seen in the longitudinal direction of the rail arrangement (8).

6. A drive system according to claim 4 or 5, characterized in that the control slot (27) is open in the transverse direction of the rail arrangement (8) towards the middle of the rail arrangement (8), and in that the control slot (27) cooperates with the control pin (18) of the movable lever (15) in its dimension complementarily in such a way that the control pin (18) is guided in a linear movement along a curve defined by the arches.

7. Drive system according to claim 4, characterized in that the control member (25) is designed as a one-piece plastic member.

8. Roof system (1) for a motor vehicle with at least one drive system (6) according to any of the preceding claims.