CN113286717B

CN113286717B - Drive system for a movable roof part of a roof system of a motor vehicle

Info

Publication number: CN113286717B
Application number: CN202080008701.3A
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: 2020-01-02
Publication date: 2023-07-04
Anticipated expiration: 2040-01-02
Also published as: DE112020000383A5; CN113286717A; WO2020144100A1

Abstract

A drive system (5) for a movable roof part (2) of a roof system of a motor vehicle is known. Such a drive system: having a carrier strip (6) which can be fixedly connected to the movable roof part (2); has a control device for actuating the front part of the support strip (6); and having a rear extension mechanism (12) in operative connection with the carrier strip at a distance behind the front portion of the carrier strip; has a guide rail assembly (7) in which the control mechanism and the rear extension mechanism can be moved. According to the invention, at least two control cams (17, 18) are fixedly arranged on the front part of the support bar (6), which are spaced apart from each other in the longitudinal direction of the support bar (6) and which control cams (17, 18) are each in operative connection with a control slide (24, 25) which is arranged on a control slide (10) that can be moved along a guide rail assembly (7), wherein at least two control cams (17, 18) protrude laterally from the support bar toward the same side.

Description

Drive system for a movable roof part of a roof system of a motor vehicle

Technical Field

The invention relates to a drive system for a movable roof part of a roof system of a motor vehicle, which drive system comprises: having a carrier strip which can be fixedly connected to a movable roof part; having a control mechanism for actuating the front part of the carrier strip; and has a rear extension mechanism (ausselmechnik) in operative connection with the carrier strip at a distance behind the front portion of the carrier strip; and has a guide rail assembly in which the control mechanism and the following extension mechanism are movable. The invention further relates to a roof system of a motor vehicle having such a drive system.

Background

A drive system for a movable roof part of a roof system of a passenger vehicle is known from DE 10 2015 201 587 A1. The known roof system is integrated in a roof module of a passenger vehicle. The roof module has a movable roof part which can be moved relative to the roof module between a closed position, a ventilation position and an open position. For moving the movable roof part, drive systems are respectively associated with opposite sides of the movable roof part. The two opposite drive systems can be actuated synchronously with each other by the drive. Each drive system has a front lifting assembly and a rear extension mechanism, which are coupled to a corresponding carrier bar of the movable roof part. Both the lifting assembly and the extension mechanism are guided in a guide rail assembly, which is part of the roof module frame of the roof module. The lifting assembly has a triangular multi-point support body which is connected in an articulated manner to the carrier strip. Furthermore, a curved section is assigned to the guide rail assembly on the front side, which curved section forms a curved guide path. The multi-point support of the lifting mechanism is guided in this curved section and, when moving backward, must move obliquely upward along the curved guide, as a result of which the carrier strip and thus the movable roof part are extended upward. The curved guide track of the curved section sinks forward to a downward level below the level of the height of the guide track assembly.

Disclosure of Invention

The object of the present invention is to provide a drive system of the type mentioned at the outset which is of simplified design and occupies a reduced overall height compared to the prior art.

This object is achieved for the drive system in that at least two control cams are fixedly arranged on the front part of the carrier strip, which are spaced apart from one another in the longitudinal direction of the carrier strip, wherein at least one control cam is in operative connection with a control slide, which is arranged on a control slide that can be moved along a guide rail assembly, and wherein at least two control cams protrude laterally from the carrier strip toward the same side.

The solution according to the invention has a reduced number of movable parts compared to the prior art. The carrier strip no longer requires a separate front lifting assembly as in the prior art. In contrast, the control function for the front part of the carrier strip is integrated in the control carriage and the carrier strip itself has only two fixedly arranged control cams which cooperate with the control cams of the control carriage in order to cause lifting and entraining of the carrier strip on the front side. The control slide forms a movable control mechanism in the guide rail assembly. According to the invention, a single control cam which interacts with a single control slide of the control slide is sufficient, as long as the single control cam is provided with a further control cam, in particular in the form of a double guide cam described below, which slides directly on the guide rail of the guide rail assembly. Furthermore, the control carriage forms a drive carriage, since a drive train of a drive device, in particular in the form of a pitch cable, acts on the control carriage, the drive device comprising an electric motor. The solution according to the invention can be used in a particularly advantageous manner for roof systems of passenger vehicles, in particular for spoiler roof systems. In the case of a spoiler roof system, the movable roof part is displaced in its open position over a fixed roof section of the roof system, the rear extension and control mechanism being moved only along a roof opening released by the movable roof part, but not further back along the side edge regions of the fixed roof section. The movable roof part thus protrudes beyond the stationary roof section in the manner of a spoiler in the open position, whereby the term spoiler roof system is explained.

In one embodiment of the invention, the control cam has a support section integrally formed on the support strip. In a further embodiment of the invention, each control cam has a sliding body which is fastened to the respective carrier section. These embodiments enable, on the one hand, simple and cost-effective production. On the other hand, the abrasion phenomenon is reduced due to the integral formation of the control bump.

In a further embodiment of the invention, the front control cam is designed as a double guide cam with two mutually angularly oriented sliding surfaces, wherein depending on the position of the carrier strip one of the sliding surfaces is always supported on the guide rail of the guide rail assembly. The double guide cam serves in particular for guiding the front part of the carrier strip along a curved guide section of the front side of the guide rail assembly and next along a guide rail extending along the guide rail assembly. The double guide projection thus enables the front part of the carrier strip to be raised or lowered.

In a further embodiment of the invention, the guide rail assembly has a rail projection on the front side, which has a curved guide track designed as a rising ramp (aushubstcr ä ge). The rail projection forms, together with the S-shaped guide rail in particular, the curved guide section described above in order to lift the front part of the carrier strip out of the lower closed position.

In a further embodiment of the invention, the underside of the rail projection ends flush with the underside of the guide rail assembly or is positioned vertically above the underside of the guide rail assembly. Thus, in contrast to the prior art, the curved guide section of the front side no longer protrudes below the plane of the guide rail assembly. This necessarily results in a reduced overall height for the drive system, which results in a greater degree of freedom of the head of the occupant in the motor vehicle.

In a further embodiment of the invention, at least one control slot provided on the control slide is open at the end side in order to be able to carry out a vertical displacement of the associated control cam of the carrier strip. The respective openings thus form an inlet or outlet allowing the movement in or out of the respective control knob. This embodiment ensures that the control cam can also be positioned above the control slide and thus above the control slide, depending on the position of the movable roof part relative to the roof opening of the roof system, which roof part closes or releases the roof opening.

In a further embodiment of the invention, the at least one control slide has a guide ramp inclined in the longitudinal direction of the control slide. The at least one guide ramp ensures that the front part of the carrier strip is lifted or lowered in accordance with the displacement movement of the control slide.

In a further embodiment of the invention, the control slide is designed as a guide channel which opens transversely to the longitudinal direction of the control slide, the bottom of the guide channel being formed by a vertically continuous wall of the control slide. The guide channel is thus arranged laterally on a vertical support wall of the control slide and extends in the longitudinal direction and opens out to the side. Furthermore, according to the previously described embodiment, each guide channel is open at the upper end.

In a further embodiment of the invention, the carrier strip has at least one fixedly arranged guide cam opposite the control cam, and the guide rail assembly has a guide rail for the guide cam and the double guide cam, which is arranged on opposite sides of the carrier strip. A particularly reliable support and guidance of the carrier strip is thereby achieved, which enables good stability of the carrier strip in each position.

In a further embodiment of the invention, the control carriage is guided in a longitudinally displaceable manner in a rail groove (schienxpur) of the guide rail assembly, which is arranged below the double guide cam for the carrier bar and the guide rail of the guide cam. The rail groove is part of a rail profile guiding the rail assembly. The rail profile is preferably designed as a light metal extrusion profile and also has guide rails for the guide cams and the double guide cams, which extend above the rail groove. The control carriage is driven by a drive transmission system, in particular in the form of a pitch cable, of a drive device of a drive system, which comprises an electric motor with a transmission that drives the drive transmission system linearly.

The object of the invention is achieved for a roof system of the type mentioned at the outset in that at least one drive system is provided according to the features described above. The roof system advantageously represents a spoiler roof.

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.

Figure 1 shows in perspective view an embodiment of a roof system according to the invention in a ventilation position of a movable roof part,

figure 2 shows an exploded view of a drive system for the roof system according to figure 1,

fig. 3 shows another exploded view of the drive system according to fig. 2, but in a different view,

figure 4 shows an enlarged cut-out according to the exploded view of figure 3,

figure 5 shows an enlarged cut-out according to the exploded view of figure 2,

figure 6 shows in perspective view the drive system according to figures 2 to 5 in a closed position,

figure 7 shows the drive system according to figure 6 in a ventilation position according to figure 1,

figure 8 shows the drive system according to figures 6 and 7 in an open position,

figure 9 shows in another perspective view the drive system according to figure 6 in a rest position,

figure 10 shows the drive system in a ventilation position in a perspective view according to figure 9,

figure 11 shows the drive system in an open position in a perspective view according to figures 9 and 10,

figure 12 shows in an enlarged perspective view the front side area of the drive system according to figure 6,

figure 13 shows a top view of the front side area of the drive system according to figure 12,

figure 14 shows a section through the drive system according to figure 13 along the section line I-I in figure 13,

figure 15 shows in perspective view the front region of the drive system in the ventilation position according to figure 7,

figure 16 shows a section of the drive system along section line II-II in figure 17,

figure 17 shows a top view of the front region according to figure 15,

figure 18 shows a section of the drive system along section line III-III in figure 17,

figure 19 shows the front side area of the drive system similar to that of figures 12 and 15 in a partially open position,

figure 20 shows a cross-section along section line IV-IV in figure 21,

fig. 21 shows a top view of the drive system in its open position according to fig. 8, and

fig. 22 shows a cross-section of the drive system along section line V-V in fig. 21.

Detailed Description

The roof system 1 according to fig. 1 is provided for a roof region of a passenger vehicle. The roof system 1 is ready to be installed as a separate roof module and is then inserted into the cut-out roof region of the vehicle body and is electrically connected to the vehicle control. The roof system 1 has a surrounding carrier frame 4 with a rear roof section 3, which is fixedly connected to the carrier frame 4, and a front movable roof part 2. The movable roof part 2 is produced according to a form-stable lid, preferably a glass lid, and serves to close or release a roof opening, not shown, which forms a roof-side opening of the vehicle interior. The movable roof part 2 can be displaced between a closed position, in which the roof part 2 ends in alignment with the adjacent roof section 3 and flush, and an open position, shown in fig. 1, in which the movable roof part 2 is moved back over the fixed roof section 3. The movable roof part 2 is supported on opposite side areas by a carrier strip 6 of a drive system 5, as shown by means of fig. 2 to 22. The two carrier strips 6 are fixedly connected to respective brackets in the region of the underside of the movable roof part 2, which brackets are fastened to the movable roof part 2 by means of a PU foam coating. Each carrier strip 6 is releasably connected to the respective bracket by a threaded connection. Each carrier strip 6 can be displaced between a closed position and an open position of the movable roof part 2 by means of the already mentioned drive system 5. As described in detail with reference to fig. 2 to 22, a drive system 5 is associated with each carrier strip 6. The opposite drive systems 5 are arranged and designed mirror-symmetrically with respect to the vertical vehicle longitudinal center plane, but otherwise identically to one another. The two drive systems 5 are driven in synchronization with each other. For this purpose, each drive system is coupled by means of a drive train in the form of a pitch cable to a central electric drive motor which is fastened to the carrier frame 4 below a front panel of the roof system 1 according to fig. 1, which is not shown in detail. The electric drive motor drives a worm gear which simultaneously and counter-currently carries out two longitudinal displacements of the drive trains for the two opposite drive systems 5. Only the left drive system 5 is shown with reference to fig. 2 to 22, seen in the normal direction of travel of the passenger car. The following explanations and the patterns according to fig. 2 to 22 are also applicable in a similar manner to the opposite, not shown drive system.

The drive system 5 according to fig. 2 to 22 has a longitudinally extending carrier strip 6, which is configured as a sheet metal bend. The support strip 6 has a vertically oriented support web which extends over the entire length of the support strip 6 and which is reinforced in the region of its lower face by web guides 19 which are arched outwards at right angles. The web guide 19 extends at least to a large extent over the entire length of the carrier strip 6.

The drive system 5 furthermore has a guide rail assembly 7 which is designed as a longitudinally extending, dimensionally stable hollow profile and is made of a light metal extrusion. The guide rail assembly 7 forms a lower rail groove 29 described in detail below and has further guide rails 26 to 28, which will be discussed in detail below, spaced apart therefrom in the vertical direction. The guide rail assembly 7 has a rail projection 11 at the front end region, which is formed by a two-part curved guide section. The rail projection 11 has an outer curved guide section 11a and an inner curved guide section 11b, wherein the outer curved guide section 11a has a curved rail which rises obliquely upward and rearward in the region of its upper side and which is curved toward the rail 27. Which is flush with the upper rail 27 of the guide rail assembly 7. The inner curved guide section 11b has a channel section which opens out toward the opposite curved guide section 11a and which likewise extends obliquely upward and rearward parallel to the curved guide rail of the outer curved guide section 11a and opens into the guide rail 26 in an aligned manner.

The control carriage 10 is guided in a longitudinally displaceable manner in the lower rail groove 29 of the guide rail assembly 7, said control carriage having, both on the outside and on the inside, respectively, a parallelepiped-shaped slide 23 which is guided in a linearly displaceable manner in the rail groove 29 in the longitudinal direction of the guide rail assembly 7 and thus brings about a linearly displaceable guide for the control carriage 10.

The guide rail assembly 7 is provided with a further guide profile 8 on the inside facing the center of the vehicle, which is provided for a screening device not shown in detail here.

The control carriage 10 is driven in a manner not shown in detail by a pitch cable already described, which is fixedly connected to the control carriage 10 in order to displace the control carriage 10 along the guide rail assembly 7 in the forward direction or in the rearward direction.

The control slide 10 is provided for tilting and displacing the front part 9 of the carrier strip 6 in the vertical direction in a manner described in detail below. A rear extension mechanism 12 is arranged at a distance behind the control carriage 10, which can be coupled to a stop 14 of the control carriage 10 or of the guide rail assembly 7 by means of a coupling rod 13 projecting forward. In order to move the coupling rod 13 in a linearly movable manner, a guide rail 28 is provided in the guide rail assembly 7, which is provided on the inner side in the region of the outer side wall of the guide rail assembly 7 and is positioned in the vertical direction between the lower rail groove 29 and the upper rail groove 27. The latter extension means 12 cooperate in a manner not described in detail with tab guide means 19 for guiding the carrier strip 6 in a displacement movement between the ventilation position and the open position.

The front region 9 of the carrier strip 6 is supported on the one hand in the guide rail assembly 7 and the rail member and on the other hand on the control slide 10. For this purpose, the front region 9 of the carrier strip 6 has, on the one hand, two

control cams

17, 18 spaced apart from one another in the longitudinal direction and in the vertical direction. The two

control cams

17, 18 each have a carrier section which is integrally formed on the carrier strip 6 and protrudes outwards at right angles to the carrier webs of the carrier strip 6, on which carrier section a respective slide body is fastened, in particular by means of insertion. The respective sliding bodies of the two

control cams

17 and 18 are composed of plastic and have good sliding properties. The carrier strip 6 is furthermore provided at the front end region with a further carrier section 16 projecting outwards at right angles, on which a double guide projection 15 is provided on the outer side. The double guide cam 15 has two mutually different sliding surfaces which are oriented at an angle to one another, the angle of which corresponds to the relative angle between the inclined surface of the curved guide rail of the curved guide section 11a and the guide rail 27 of the guide rail assembly 7. The carrier section 16 is integrally formed on a carrier web of the carrier strip 6.

Furthermore, two

further guide cams

20 and 21 are provided in the region of the underside of the front region 9 of the carrier strip, of which one guide cam 20 projects laterally outwards and the other guide cam 21 projects laterally inwards in opposition. The guide cam 21 is arranged in an obliquely extending guide channel of the inner curved guide section 11b and is displaced in a linearly movable manner in the guide rail 26. As can be clearly seen from fig. 16, the outer guide cam 20 serves as a counter stop with respect to the double guide cam 15 at least in the region of the curved guide rail of the outer curved guide section 11 a. As can be seen from fig. 20, the guide cams 20 also form a mating support in the region of the guide rail 27 of the guide rail assembly 7, which mating support can be moved in a sliding manner relative to the double guide cams 15.

The control carriage 10 has a wall portion extending vertically and in the longitudinal direction, on one side of which a sliding cam 23 and a guide cam 30 projecting laterally outward from the wall portion above the sliding cam 23 at a distance are provided. In opposition to the outer guide cams 30, two

control links

24, 25 in the form of laterally open guide channels are provided on the wall of the control slide 10, which are spaced apart from one another in the longitudinal direction and in the vertical direction of the control slide 10. The two

control slide grooves

24 and 25 are open upward in the vertical direction. Furthermore, the control slide 25 has an inclined plane as a guide surface of the respective guide channel, which rises forward with respect to the longitudinal direction of the guide rail assembly 7. The control slide 24 extends at least to a large extent in the vertical direction, but has a front guide surface with a curved deflection. This can be clearly seen with the aid of fig. 18.

In order to displace the carrier strip 6 and thus the movable roof part 2 from the closed position according to fig. 6, 9, 12, in which the

control cams

17 and 18 according to fig. 14 are positioned inside the

control slide

24, 25 of the control slide 10, in the direction of the ventilation position according to fig. 7, 10, 15, and further in the direction of the open position according to fig. 8, 11 and 19, 21, the control slide 10 is moved back along the guide rail assembly 7 from its initial position according to fig. 6 and 12 by means of the drive train and by means of the electric drive motor. Thereby, the control cam 18 is displaced forward in the interior of the control slide 25 along the guide slope of the control slide 25 of the control slide 10. This necessarily causes the front region of the support bar 6 to be slightly inclined upwards, and the double guide cam 15 together with the guide cam 21 of the front end region of the support bar 6 moves obliquely upwards slightly along the obliquely extending curved guide path of the rail projection 11. As soon as the two

control links

17 and 18 bear against the upwardly extending guide walls of the control links 24 and 25, the rearward further longitudinal movement of the control slide 10 necessarily brings the carrier strip 6 further rearward, whereby the double guide cam 15 and the guide cam 21 slide upward along the rail projection 11 until the double guide cam 15 bears against the guide rail 27 and the guide cam 21 bears in the guide rail 26. The front region 9 of the carrier strip 6 now reaches its upper end position. In this position, the rear control cam 18 of the support bar 6 is moved upward according to fig. 8 out of the control slot 25 of the control slide 10. As can be seen from fig. 22, the further carrying of the carrier strip now takes place via the front guide wall of the control slide 24. In this rearward longitudinal movement, the carrier strip 6 is additionally supported by its web guide 19 by the following extension 12. The positioning of the control cam 17 inside the control slide 24 according to fig. 22 and the sliding guidance of the double guide cam 15 on the guide rail 27 and the sliding guidance of the guide cam 21 in the guide rail 26 are now no longer changed until the open position of the support bar 6 according to fig. 8 and 11.

In a corresponding opposite forward driving movement of the control carriage 10, i.e. when the drive is turned by the drive train, the control carriage 10 is moved forward again. The lowering of the carrier strip 6 takes place only when the

double guide cams

15 and 21 have reached the front rail section 11. By sliding the double guide cam 15 obliquely forward and downward along the curved guide path of the outer curved guide section 11a, the front control cam 17 inevitably drops back into the control slide 24 again, and the rear control cam 18 also enters again into the control slide 25 through its upper opening. The movement of the

control cams

17 and 18 in the control slides 24 and 25 and the displacement of the

double guide cams

15 and 21 along the rail projections 11 takes place in the respective opposite directions, as already described. A stop cam 20 serving as a counter support is likewise provided on the front region 9 of the carrier strip 6, which ensures that the double guide cam 15 slides permanently without play along a curved guide track or rail 27.

As can be clearly seen from fig. 14, the control slot 24 for the control cam 17 has a guide surface extending obliquely in the region of its upper side and thus has a guide slope along which the control cam (17) is displaced together with the positively guided displacement of the control cam (18) in the control slot (25).

Claims

1. Drive system (5) for a movable roof part (2) of a roof system (1) of a motor vehicle, which drive system: having a carrier strip (6) which can be connected fixedly to the movable roof part (2); has a control device for actuating the front part (9) of the support strip (6); and having a rear extension mechanism (12) which is in operative connection with the carrier strip (6) at a distance behind the front part (9) of the carrier strip (6); and having a guide rail assembly (7) in which the control mechanism and the rear extension mechanism (12) can be moved, characterized in that at least two control cams (17, 18) are fixedly arranged on the front part (9) of the carrier strip (6), which are spaced apart from one another in the longitudinal direction of the carrier strip (6), wherein at least one control cam (17, 18) is in operative connection with a control slide (24, 25) which is provided on a control slide (10) which can be moved along the guide rail assembly (7), and wherein at least two control cams (17, 18) protrude laterally from the carrier strip (6) toward the same side,

wherein the front control cam is designed as a double guide cam (15) having two sliding surfaces oriented at an angle to each other, wherein depending on the position of the support bar (6) one of the sliding surfaces is always supported on a guide rail (27) of the guide rail assembly (7).

2. Drive system according to claim 1, characterized in that the control cams (17, 18) have carrier sections integrally formed on the carrier strip (6).

3. A drive system according to claim 2, characterized in that each control cam (17, 18) has a sliding body fixed on the respective carrier section.

4. A drive system according to any of the preceding claims 1-3, characterized in that the guide rail assembly (7) has a rail projection (11) on the front side, which has a curved guide track designed as a lifting ramp.

5. The drive system according to claim 4, characterized in that the underside of the rail projection (11) ends flush with the underside of the guide rail assembly (7) or is positioned vertically above the underside of the guide rail assembly.

6. A drive system according to any one of the preceding claims 1-3, characterized in that at least one control slide (24, 25) provided on the control slide (10) is open at the end side in order to be able to carry out an insertion or removal in the vertical direction of the associated control cam of the carrier strip.

7. A drive system according to any one of the preceding claims 1-3, characterized in that at least one control slide (24, 25) has a guide ramp inclined in the longitudinal direction of the control slide (10).

8. A drive system according to any one of the preceding claims 1-3, characterized in that the control slide (24, 25) is designed as a guide channel which opens transversely to the longitudinal direction of the control slide (10), the bottom of the guide channel being formed by a vertically consecutive wall of the control slide (10).

9. A drive system according to any of the preceding claims 1-3, characterized in that the carrier strip (6) has at least one fixedly arranged guide lug (21) opposite the control lugs (17, 18), and the guide rail assembly (7) has guide rails (26, 27) for the guide lug (21) and the double guide lug (15), respectively, which are placed on opposite sides of the carrier strip (6).

10. A drive system according to any one of the preceding claims 1-3, characterized in that the control slide (10) is guided in a longitudinally displaceable manner in a rail groove (29) of the guide rail assembly (7), which is arranged below the guide rails (26, 27) of the double guide cams (15) and guide cams (21) for the carrier strip (6).

11. Roof system for a motor vehicle, having at least one drive system (5) according to any of the preceding claims.