Convertible top with panel bows

Abstract

Convertible top of a convertible vehicle, comprising a convertible top cover (11) and a convertible top frame (12) which is adjustable between a closed position, in which a vehicle interior is spanned, and a stowed position in which the vehicle interior is open upwards, and which, with respect to a vertical longitudinal center plane of the convertible top, has on both sides a linkage arrangement (13) comprising two main links (20, 21) which are pivotably mounted on a vehicle-fixed main bearing (24) and of which one is driven by means of a main drive, wherein between the linkage arrangements (13) arranged on both sides surface bows extend, of which a first is a front bow (14), a second is a front center bow (15), a third is a rear center bow (16) and a fourth is a rear window bow (17), characterized in thatthat in the stowed position the rear center bow (16) is arranged below the rear window bow (17) and that two adjusting links (58, 59) are articulated to the rear center bow (16), one of which is driven by means of a drive element and at least one of which is pivotably mounted on the main bearing (24).

Description

The invention relates to a top of a convertible vehicle having the features of the preamble of claim 1.Such a top is known from practice and is designed as a so-called flat bow top, in which a top cover, in a closed position of the top spanning a vehicle interior, spans so-called flat bows, which form a support surface for the top cover in the longitudinal direction of the vehicle. The surface bow thus represents surface elements which extend both in the transverse direction of the top and in the longitudinal direction of the top. They are part of a convertible top linkage which is adjustable between the closed position spanning the vehicle interior and a storage position releasing the vehicle interior upward and which has a linkage arrangement on both sides with respect to a vertical longitudinal center plane of the convertible top. The linkage arrangements, which extend substantially in the longitudinal direction of the top, each comprise a main multi-joint arrangement with two main links which are pivotably mounted on a respective main bearing fixed to the vehicle. The surface latches are arranged between the two linkage arrangements. One of the surface bow forms a front bow which, in the closed position of the top, can be fixed to a front cowl of the relevant vehicle. The further surface bow adjoins the front bow in the rear direction of the vehicle, namely a front middle bow, a rear middle bow and a rear window bow which accommodates a rear window.In known surface bow covers of the type described above, the surface bow in the storage position of the cover has a stacking sequence in which, from top to bottom, first the front bow, then the front middle bow, then the rear middle bow and at the bottom of the rear window bow are arranged. This is not optimal with respect to the package, since unused space remains below the rear window bow.DE 100 06 296 C1 discloses a vehicle roof which has a front roof element, a middle roof element and a rear roof element, which together with a rear roof element of a rear roof section in a closed position cover a vehicle interior and can be transferred from the closed position into an open position.DE 10 2007 022 354 A1 discloses a deployable roof arrangement for a convertible, having a main joint comprising at least two links and movable about a main bearing, a main roof element which is connected to the main joint in first joints, an additional roof element which is arranged behind the main roof element in a closed position of the roof arrangement, and having a connecting linkage for the additional roof element which is connected to the main joint in second joints.DE 10 2009 009 596 A1 teaches a top for a convertible vehicle, which is displaceable between a closed position and an open position and comprises a main link transmission having a first main link, a second main link and a link element and a top element. The hood element pivotally couples the first main link and the second main link to each other.The object of the invention is to create a top of the type mentioned in the introduction which is optimized with respect to the package in the storage position.This object is achieved according to the invention by the top having the features of claim 1.In the hood according to the invention, the rear middle bow is thus arranged below the rear window bow in the storage position of the hood. The installation space used by the top in the storage position can thus be optimally utilized in the vehicle vertical direction, since the rear window bow, that is to say the surface bow which accommodates a rear window of the top, accommodates the rear central bow in its lower curvature. Two adjusting links are articulated on the middle bow, one of which is driven by means of a drive element and of which preferably at least one is pivotably mounted on the main bearing. The drive element thus triggers a pivoting movement of the two adjustment links, by means of which the rear middle bow can be adjusted under the rear window bow in the rear direction. The drive element can be a separate drive element or also the main drive, by means of which one of the main links of the relevant linkage arrangement is driven.The top according to the invention is a so-called flat bow top, in which the top cover is supported at least largely over its full surface in the longitudinal direction of the top when the top is in the closed position. Larger joints between the surface bars are not necessary and are also not formed.The hood cover is generally not fixed to the rear middle bow. Thus, in the hood according to the invention it is also not necessary to provide installation space for a possible fabric fold between the rear window bow and the rear middle bow.In the sense of the present invention, a driven link is a link which is acted upon with an adjusting force directly or via a countershaft or a drive link arrangement by a drive device, such as a hydraulic cylinder or an electric motor. These differ from passively driven links which do not lie in the force chain emanating from the drive device, but are also pivoted by pivoting a driven link.In a special embodiment of the top according to the invention, a coupling lever is provided which is connected to the drive member and to which a drive lever for the driven adjusting link of the rear middle bow and a lowering lever which is connected to the driven main link are linked. In this case, the main drive and the drive element for the adjusting links are formed by the same drive device.The coupling lever, which is part of a drive link arrangement for the driven adjusting link and part of a drive link arrangement for the driven main link, is expediently mounted pivotably on the main bearing, so that its position and its pivoting behavior are defined.In order to be able to optimally utilize the limited installation space in a top of a convertible vehicle, it may be advantageous if one of the adjusting links for the rear middle bow is supported pivotably via a hinge point on one of the main links.In a special embodiment of the top according to the invention, it may be necessary for the rear window bow to be raised before the rear middle bow is pivoted. In this case, the rear window bow can be connected on both sides to a respective drive device via a rear window link arrangement, so that when the top is adjusted from the closed position into the open position, the rear window bow first experiences a lifting movement, whereupon the rear middle bow is adjusted under the rear window bow by means of the main drives or also by means of separate drive elements. The drive device for the rear window bow can likewise be formed by a separate drive device or else by a drive device which forms the main drive for the driven main link.The invention also relates to a top of a convertible vehicle having the features of claim 6.In this flat bow roof, a clamping bracket is arranged between the linkage arrangements arranged on both sides, which clamping bracket, in the closed position, delimits the roof covering at the rear and which clamping bracket can be adjusted between a lowered position and a raised position by means of a clamping rod arrangement. The tie rod arrangement is connected to an actuating link which can be driven by a drive device and is connected to a rear window link arrangement via a coupling link. By means of the actuating link, the rear window bow experiences an adjusting movement in the direction of the tensioning bow when the top is adjusted from the closed position into the storage position. The rear window bow can thus be brought, when the top is placed in a top storage box of the relevant vehicle, to the height which the tensioning bow assumes in the storage position of the top. The installation space available in a vehicle can thus be optimally utilized.The rear window link arrangement, which is arranged on both sides with respect to the longitudinal center plane of the top, has a front folding lever and a rear folding lever in a special embodiment. The two folding levers, which are thus each formed from two lever elements pivotable relative to one another, are supported on the one hand on the clamping rod arrangement or the clamping bracket and are articulated on the rear window bow on the other hand. When the rear window bow is adjusted in the direction of the tensioning bow, the folding levers are adjusted from their extended position into an angled position. In order to define the buckling behavior of the two buckling levers, these are preferably connected via a control rod which is linked to one of the buckling levers via a fixed pivot point and is linked to the other of the buckling levers via an elongated hole arrangement.It may be necessary to displace the position of the pivot axis of the clamping bracket during the adjustment of the top. For this purpose, in a special embodiment of the convertible top according to the invention, the clamping bracket is hinged on both sides to a control link which is connected to a drive lever which is driven by the drive device for the actuating link.In a further development of the hood according to the invention, a roof rear link is articulated to the clamping bracket or to the control link, which is connected via an articulation point to a coupling rod for actuating the front bow and to which a rear-side sealing section of a hood side seal is preferably fixed. It is thus no longer necessary to fix the relevant sealing section to one of the main links. Rather, the roof rear link can also be lifted when the clamping bracket is actuated, which in turn has the result that the clamping bracket itself does not have to execute such a large pivoting movement in order to free the space required for opening a conventional convertible top compartment lid. Rather, the time required for opening or closing the top can be even shortened.The main drive and the drive device for the tie rod arrangement can be formed by separate control elements, such as hydraulic cylinders or electric motors. It is also conceivable, however, by appropriate design to combine the main drive and the drive device in a common control element.In order to achieve a defined adjusting movement when the convertible top linkage is actuated, the actuation of the main drive and the actuation of the drive device for the clamping rod arrangement take place successively in a preferred embodiment of the convertible top according to the invention. This means that, starting from the closed position or clamping position, the clamping bracket is first raised together with the rear window bow and the other surface bows are subsequently actuated by actuating the main drive in order to reach the storage position. In this case, the rear central bow is adjusted under the rear window bow, whereas the front central bow and the front bow come to rest in the storage position above the rear window bow.The invention furthermore relates to a top having the features of claim 13. In this top, in which the front bow is connected via two front links to a middle roof link, which is connected in an articulated manner to the two main links, the front middle bow is mounted pivotably on one of the front bows and is connected to a drive lever, which is linked to the front bow via an articulation point. The position of the front middle bow or its pivoted position is thus defined by the position of the front bow during the adjustment of the top.Furthermore, the invention relates to a top with the features of claim 14. This convertible top comprises a top cover and a top linkage which can be adjusted between a closed position in which a vehicle interior is spanned and a storage position in which the vehicle interior is released upwards. Furthermore, the convertible top linkage comprises a rear-side clamping bracket which, in the closed position, delimits the convertible top cover on the rear side, and, with respect to a vertical longitudinal central plane of the convertible top, each comprises on both sides a linkage arrangement which comprises two main links which are pivotably mounted on a main bearing fixed to the vehicle and of which one is driven by means of a main drive, and a convertible top side seal which, in the closed position, interacts with a lateral window arrangement of the convertible vehicle. The hood side seal has at least one rear side seal section which is fastened to a seal link of the respective linkage arrangement. The sealing link experiences a lifting movement together with the clamping bracket when the convertible top linkage is adjusted from the closed position into the storage position. The clamping bracket, which is generally pivotably mounted in order to be able to open a rear-side folding top storage box of the relevant vehicle, can thus be pivoted upwards in the raised position of the sealing link, whereby the risk is minimized that components of the folding top, in particular transverse bow or a rear window, impair the head clearance of vehicle occupants or penetrate into the head region of the vehicle occupants. The safety of the vehicle occupants is thus considerably increased compared to solutions in which the clamping bracket and the sealing link do not undergo any additional lifting movement before pivoting or when pivoting the clamping bracket.In a special embodiment of this top, the sealing link is a rear roof link which is linked via its front end to a coupling rod for actuating a front bow. The lifting movement which the sealing link then experiences represents an upwardly directed pivoting movement via the pivot point of the sealing link on the coupling rod.Expediently, the clamping bracket is articulated to the sealing links arranged on both sides. A lifting force exerted on the sealing link can thus also be transmitted directly to the clamping bracket.In a special embodiment of the top according to the invention, the lifting movement of the sealing link and the clamping bracket is triggered on both sides in each case by means of a control link. This is in particular linked to the sealing link.For driving, the control link can be connected to a drive lever which is driven by a drive device and is preferably mounted pivotably on the main bearing fixed to the vehicle.In order to integrate functions and to keep the number of drive levers low, an actuating link can furthermore be articulated to the drive lever, said actuating link being connected to a clamping rod arrangement, by means of which the clamping bracket can be pivoted with respect to the sealing link. The drive lever thus triggers the lifting movement of the clamping bracket and the sealing lever on the one hand and causes the clamping bracket to be pivoted with respect to the sealing link by driving the actuating link and the clamping rod arrangement on the other hand, so that a convertible top compartment cover can be pivoted, by means of which the convertible top compartment of the relevant vehicle can be closed.The actuating link for actuating the tie rod arrangement can be linked directly or indirectly via an adjusting lever arrangement to the drive lever.In order to be able to define a structured movement sequence during the adjustment of the top, the main drive and the drive device are preferably formed by separate actuating members which can be controlled in a desired sequence by a top controller.The top with the raisable sealing levers can be a surface bow top which has a plurality of, for example four, surface bows, of which a first is a front bow, a second is a front middle bow, a third is a rear middle bow and a fourth is a rear window bow. In an alternative embodiment, the top is designed as a tension bow top, in which the top cover is held under tension between the tension bow and the front bow by means of conventional transverse bow.Further advantages and advantageous embodiments of the subject matter of the invention can be derived from the description, the drawing and the patent claims.An exemplary embodiment of a top according to the invention is shown in a schematically simplified manner in the drawing and is explained in more detail in the following description. It shows: FIG. 1 is a schematic side view of a top according to the invention in its closed position; FIG. 2 shows a schematic side view of the top according to FIG. 1 in a first intermediate position during the adjustment into a storage position; FIG. 3 is an enlarged view of the area III in FIG. 2 ; FIG. 4 shows a schematic side view of a rear section of the top according to FIG. 1 in a second intermediate position; FIG. 5 shows a schematic side view of the top according to FIG. 1 in a third intermediate position; FIG. 6 shows a schematic side view of the top according to FIG. 1 in a fourth intermediate position; FIG. 7 is an enlarged view of the area VII in FIG. 6 ; and FIG. 8 shows a further schematic side view of the top according to FIG. 1, but in its storage position.The drawing shows a top 10 of a convertible vehicle, which is designed as a folding top or a flat bow top, otherwise not shown in detail. The top 10 is adjustable between a closed position, which is illustrated in FIG. 1 and in which an interior of the vehicle is spanned, and a storage position, which is illustrated in FIG. 8 and in which the interior of the vehicle is released upward. In the storage position, the top is accommodated by a rear-side top storage box of the relevant vehicle.The top 10 comprises a top cover 11, which is shown in dashed lines in FIG. 1 and is formed from a foldable, watertight fabric. For clamping the hood 11, the hood 10 comprises a hood linkage 12 which, with respect to a vertical hood longitudinal central plane, has a linkage arrangement 13 on each side. The linkage arrangements 13 arranged on both sides are designed mirror-symmetrically to one another with respect to the vertical longitudinal center plane of the top, for which reason in the following description of the top 10 reference is made only to the linkage arrangement arranged on the left with respect to the forward direction of travel of the relevant vehicle. The linkage arrangement arranged on the right with respect to the forward direction of travel of the vehicle is designed in a corresponding manner and therefore also results from the following description.In the drawing, links and levers which lie in different planes, i.e. are arranged one behind the other, are all projected into the plane of the drawing, so that they can intersect in the drawing.The linkage arrangements 13 serve for actuating four surface bow members 14, 15, 16 and 17, which are designed in the manner of rigid roof shells and, in the closed position illustrated in FIG. 1, form a support surface for the top cover 11 which is substantially continuous in the longitudinal direction of the vehicle. In the closed position, the four surface bow 14, 15, 16 and 17 are arranged one behind the other in the longitudinal direction of the top, wherein the surface bow 14 forms a front bow which can be fixed to a front cowl of the relevant vehicle, the surface bow 15 forms a front middle bow which adjoins the front bow with its front edge, the surface bow 16 forms a rear middle bow which adjoins the front middle bow with a front edge, and the surface bow 17 forms a rear window bow which accommodates a rear window 18. In the storage position shown in FIG. 8, the sheet bars 14, 15, 16 and 17 are arranged stacked one above the other, wherein the sheet bar 14 forming the front bar is arranged at the top, followed by the sheet bar 15 forming the front middle bar, followed in turn by the sheet bar 17 forming the rear window bar and the sheet bar 16 forming the rear middle bar and arranged at the bottom.The top cover 11 is fastened to the upper side of the flat bow 14, to the rear edge region of the flat bow 15 and to the front edge region of the flat bow 17. The top cover 11 does not have any fixing to the surface bow 16. Rather, in the closed position of the top, it rests loosely or without fixing on the flat bow 16.The linkage arrangements 13 each comprise, as a main multi-joint arrangement, a main four-bar joint 19 with a first main link 20 and a second main link 21, the two main links 20 and 21 being mounted in each case via a pivot point 22 or 23 on a main bearing 24 fixed to the vehicle.For driving, the main link 20 is connected via a hinge point 25 to a lowering lever 26 which is linked via a hinge point 27 to a coupling lever 28 to which a piston rod of a hydraulic cylinder 30 designed as a main drive is linked via a hinge point 29 and which is pivotably mounted at a support point 31 on the main bearing 24.The two main links 20 and 21 are linked via hinge points 32 and 33 to a roof middle link 34, which is a component of a middle roof frame element.Two front links 37 and 38 are articulated to the middle and front section of the roof control arm 34 via pivot points 35 and 36, on whose ends remote from the pivot points 35 and 36 are mounted via pivot points 39 and 40 of the surface bow 14 forming the front bow. The pivot points 39 and 40 are formed on a carrier element 41 of the surface bow 14. In order to be able to pivot the two front links 37 and 38 relative to the middle roof link 34, a coupling rod 43 is linked to the main link 20 via a hinge point 42 and is connected on the one hand via a pivot point 44 to a coupling link 45 which is linked by its end facing away from the pivot point 44 via a pivot point 46 to the front link 38. On the other hand, the coupling rod 43 is connected via a pivot point 47 to a coupling link 48, which is linked by its end facing away from the pivot point 47 via a pivot point 49 to the front link 37.The flat bow 15 forming the front middle bow has a carrier element 50 connected in a rotationally fixed manner. A rear pivot point 51 is formed on the carrier element 50 of the flat bow 15, via which the flat bow 15 is pivotably mounted on the front link 37. Furthermore, a front pivot point 52 is formed on the carrier element 50 of the flat bow 15, via which a drive lever 53 is articulated to the flat bow 15. The drive lever 53 is articulated with its end facing away from the pivot point 52 via an articulation point 54 to the carrier element 41 of the front surface bow 14 or front bow.The surface bow 16 forming the rear middle bow has a carrier element 55 connected in a rotationally fixed manner, which has a front articulation point 56 and a rear articulation point 57, via which a front adjustment link 58 and a rear adjustment link 59 are articulated, which serve for adjusting the surface bow 16. The front adjusting link 58 is pivotably mounted on the main bearing 24 at the pivot point 22. The rear adjusting link 59 is pivotably mounted on the main link 21 at a pivot point 60 which is mounted on the main bearing 24 at the pivot point 23. The front adjusting link 58 is connected via a hinge point 61 to a drive lever 62, which is in turn linked, via the end facing away from the hinge point 61, via a pivot point 63 to the coupling lever 28, on which the hydraulic cylinder 30 acts. The front adjusting link 58 is thus the driven adjusting link.The top 10 further comprises a rear-side clamping bracket 64 which delimits the top cover 11 at the rear in the closed position of the top 10 and can rest in the usual manner on a top compartment cover. In order to be able to open the top compartment cover starting from the closed position of the top 10, the clamping bracket 64 has to be raised, whereupon the top 10 can be deposited in the top storage compartment.The clamping bracket 64, which has an arcuate course, is connected on both sides, in each case at its front end, via a pivot point 65, to a control link 66, which is supported, via its end facing away from the pivot point 65, via a pivot point 67 on a drive lever 68, which is pivotably mounted at a pivot point 69 on the main bearing 24. A clamping rod arrangement is articulated on both sides of the clamping bracket 64 via a respective articulation point 70, which clamping rod arrangement is formed from a rear clamping rod 71 and a front clamping rod 72, which is movably connected to the rear clamping rod 71 at an articulation point 73 and is articulated to the coupling rod 43 via the articulation point 42 at the end remote from the articulation point 73.In order to be able to raise or lower the clamping bracket 64 by means of the clamping rod arrangement, the front clamping rod 72 is connected at a hinge point 74 to an actuating link 75 which is linked at a pivot point 76 to an adjusting lever arrangement which consists of a first adjusting lever 77 which is pivotably mounted at a pivot point 78 on the main bearing 24 and a second adjusting lever 79 which is linked via a hinge point 80 to the drive lever 68. The two adjusting levers 77 and 79 are connected to one another at the pivot point 76.A hydraulic cylinder 82 is articulated on the drive lever 68 at an articulation point 81, which hydraulic cylinder is supported at a pivot point 83 on the main bearing 24. By driving the hydraulic cylinder 82, the drive lever 68 can be pivoted about the pivot point 69, whereby the clamping rod arrangement is driven via the adjusting lever arrangement consisting of the adjusting levers 77 and 79 and the actuating link 75. In the closed position shown in FIG. 1, the adjusting levers 77 and 79 assume an over-center position, so that the clamping bracket 64 is secured against undesired lifting. Rather, a corresponding lifting force acts on the clamping bracket 64 via the clamping rod arrangement and the actuating link 75 on the adjusting lever arrangement such that a torque acts on the drive lever 68 in the closing direction, i.e. clockwise in the drawing about the pivot point 69.The rear surface bow 17 forming the rear window bow has a carrier element 84 which is connected in a rotationally fixed manner and is connected at a hinge point 85 to a front folding lever 86 which consists of a lever 87 and a lever 88 which are connected to one another via a hinge point 89. At the end facing away from the articulation point 85, the articulated lever 86 is mounted pivotably on the rear clamping rod 71 via an articulation point 90. On the support element 84 is formed a further articulation point 91, via which is articulated a rear articulation lever 92, which consists of a lever 93 and a lever 94, which are connected to one another via an articulation point 95. The articulated lever 92 is pivotably mounted at its end facing away from the articulation point 91 on the rear clamping rod 71 via an articulation point 96.In order to be able to drive the rear link arrangement comprising the two folding levers 86 and 92, the lever 88 of the folding lever 86 is connected via a hinge point 97 to a drive lever 98 which is linked via a hinge point 99 to the actuating link 75.For coupling the two articulated levers 86 and 92, a control rod 101 is articulated to the lever 87 of the articulated lever 86 via a joint 100, said control rod having, at its end facing away from the joint 100, an elongated hole 102 in which a control pin 103 is engaged, which is arranged on the lever 94 of the articulated lever 92.In the region of its front ends arranged on both sides, a roof rear link 105 is articulated to the clamping bracket 64 via a hinge point 104, the end of said rear link facing away from the hinge point 104 being articulated to the coupling rod 43 via a hinge point 106.Furthermore, a sealing arrangement 107 is connected to each of the hood linkages 12 on both sides, which sealing arrangement interacts with side windows of the relevant vehicle in the closed position of the hood and is formed from four sealing sections 108, 109, 110 and 111 which are flush with one another in the closed position illustrated in FIG. 1. The seal portion 108 is fixed to the front bow 14. The seal portion 109 is fixed to the front front link 38. The seal portion 110 is fixed to the roof center link 34, and the seal portion 111 is fixed to the roof rear link 105.The above-described surface bow top 10 operates in the manner described below.Starting from the closed position shown in FIG. 1, the hydraulic cylinder 82 is first actuated to release the vehicle interior, so that the drive lever 68 is pivoted counterclockwise in the orientation selected in the drawing. As a result, the clamping bracket 64 is lifted together with the rear window bow 17 on the one hand via the control link 66 and a tensile force is exerted on the clamping rod arrangement comprising the clamping rods 71 and 72 on the other hand via the adjusting levers 77 and 79 and the actuating link 75, so that the clamping bracket 64 together with the rear window bow 17 is pivoted upwards about the pivot point 65. At the same time, a thrust force is exerted on the folding lever 86 via the drive lever 98, which brings the latter into its extended position. The rear window bow 17 is thus pivoted upward with respect to the rear clamping rod 71. In this case, the control rod 101 is also displaced in the direction of the articulated lever 92 in such a way that the control pin 103 is displaced from its end stop in the slot 102 in the direction of the articulation point 89 and the secured position of the rear window bow 17 with respect to the clamping rod 71 defined by the control rod 101 is canceled. In addition, by the actuation of the control link 66, the roof rear link 105 constituting a sealing link is raised together with the sealing section 111, which is why the pivoting movement of the clamping bracket 64 can be kept smaller than in the case of known clamping bracket covers in order to release the movement path for a roof compartment cover. This also shortens the time required for actuating the top.As soon as the upper end position of the structural unit consisting of the clamping bracket 64 and the rear window bow 17 is reached, the drive lever 68 is held in position, as a result of which, during the further adjusting process, it forms a fixed bearing for the control link 66 and, via the adjusting levers 77 and 79 likewise held in position, for the actuating link 75.After a subsequent opening of the convertible top storage box of the relevant vehicle by pivoting the convertible top box cover, the hydraulic cylinder 30 is actuated, so that the coupling lever 28 is pivoted about its pivot point 112 in the clockwise direction on the main bearing 24 and a driving force is exerted on the adjusting link 58 via the driving lever 62 and a driving force is exerted on the main link 20 of the main four-bar linkage 19 via the lowering lever 26. By pivoting the adjusting links 58 and 59 forming a four-bar linkage, the rear middle bow 16 is pivoted under the rear window bow 17. By actuating the main four-bar joint 19, the front bow 14 is raised via the coupling rod 43 and the front links 37 and 38 and pivoted in the rear direction with respect to the roof center link 34. By the pivoting process, the front middle latch 15 is pivoted in a defined manner about the pivot point 49 on the front link 37 via the drive lever 53.By further pivoting of the main links 20 and 21 in the rear direction, i.e. in the clockwise direction, the actuating link 75 and the control link 66 are also pivoted in the clockwise direction about the pivot points 76 and 67, as a result of which the unit comprising the tensioning bracket 64 and the rear window bow 17 is lowered and the latter is pivoted in the direction of the tensioning bracket 64 and an adjusting force is exerted on the folding lever 86 via the drive lever 98, which adjusting force is transmitted to the rear folding lever 92 via the control rod 101. The rear middle bow 16 is arranged below the rear window bow 17 (see FIGS. 6, 7 to 8 ). Unlike in known convertible tops, the clamping bracket 64 is not brought into a lowered intermediate position by means of a clamping bracket drive before the main multi-joint is actuated.In the state in which it is deposited in the convertible top storage box, the surface bow members 14, 15, 16 and 17 are then arranged in a stacked manner in the convertible top storage box, as is illustrated with reference to FIG. 8. In the storage position, the flat bow 16 forms the lower flat bow which is covered by the flat bow 17 constituting the rear window bow, which in turn is covered by the flat bow 15 constituting the front middle bow, which is covered by the flat bow 14 constituting the front bow.The adjustment of the top 10 from the storage position shown in FIG. 8 into the closed position shown in FIG. 1 takes place in a kinematically reversed manner.List of reference characters10 Top, surface bow top 11 top cover 12 top linkage 13 linkage arrangement 14 surface bow, front bow 15 surface bow, front middle bow 16 surface bow, rear middle bow 17 surface bow, Rear window bow 18 Rear window 19 Main four-bar joint 20 Main link 21 Main link 22 Pivot point 23 Pivot point 24 Main bearing 25 Pivot point 26 Lowering lever 27 Pivot point 28 Coupling lever 29 Pivot point 30 Hydraulic cylinder 31 Support point 32 Pivot point 33 Pivot point 34 Roof center link 35 Pivot point 36 Pivot point 37 Front link 38 Front link 39 Pivot point 40 Pivot point 41 Carrier element 42 Pivot point 43 Coupling rod 44 Pivot point 45 Coupling link 46 Pivot point 47 Pivot point 48 Coupling link 49 Pivot point 50 Carrier element 51 Pivot point 52 Pivot point 53 Drive lever 54 Pivot point 55 Carrier element 56 Pivot point 57 Pivot point 58 Adjustment link 59 Adjustment link 60 Pivot point 61 Pivot point 62 Drive lever 63 Pivot point 64 Tension bracket 65 Pivot point 66 Control link 67 Pivot point 68 Drive lever 69 Pivot point 70 Pivot point 71 rear clamping rod 72 front clamping rod 73 articulation point 74 articulation point 75 actuating link 76 pivot point 77 actuating lever 78 pivot point 79 actuating lever 80 articulation point 81 articulation point 82 hydraulic cylinder 83 pivot point 84 carrier element 85 articulation point 86 front articulated lever 87 lever 88 lever 89 articulation point 90 articulation point 91 articulation point 92 rear articulated lever 93 lever 94 lever 95 articulation point 96 articulation point 97 articulation point 98 drive lever 99 articulation point 100 articulation 101 control rod 102 elongated hole 103 control pin 104 articulation point 105 roof rear link 106 articulation point 107 sealing arrangement 108 sealing section 109 sealing section 110 sealing section 111 sealing section 112 pivot point

Claims

Top of a convertible vehicle, comprising a top cover (11) and a top linkage (12) which can be adjusted between a closed position in which a vehicle interior is spanned and a storage position in which the vehicle interior is released upward, and which, with respect to a vertical longitudinal centre plane of the top, has on both sides in each case a linkage arrangement (13) which comprises two main links (20, 21) which are pivotably mounted on a vehicle-mounted main bearing (24) and of which one is driven by means of a main drive, wherein surface bows extend between the linkage arrangements (13) arranged on both sides, a first of which is a front bow (14), a second of which is a front centre bow (15), a third of which is a rear centre bow (16) and a fourth of which is a rear window bow (17), characterized in that, in the storage position, the rear middle bow (16) is arranged below the rear window bow (17), and two adjusting links (58, 59) are articulated to the rear middle bow (16), one of which is driven by a drive element and at least one of which is pivotably mounted on the main bearing (24).Top according to claim 1, characterised bya coupling lever (28) which is connected to the drive member and to which a drive lever (62) for the driven adjusting link (58) of the rear middle bow (16) and a lowering lever (26) which is connected to the driven main link (20) are articulated.Top according to claim 2, characterised in that the coupling lever (28) is pivotably mounted on the main bearing (24).Top according to one of Claims 1 to 3, characterized in that one of the adjusting links (59) is supported pivotably on one of the main links (21) via a pivot point (60).Roof according to one of Claims 1 to 4, characterized in that the rear window bow (17) is connected on both sides in each case via a rear window link arrangement to a respective drive device, with the result that, when the roof is adjusted from the closed position into the storage position, the rear window bow (17) firstly experiences a lifting movement, whereupon an adjustment movement of the rear central bow (16) under the rear window bow (17) takes place.Top of a convertible vehicle, comprising a top cover (11) and a top linkage (12) which can be adjusted between a closed position in which a vehicle interior is spanned and a storage position in which the vehicle interior is released upward, and which, with respect to a vertical longitudinal centre plane of the top, has on both sides in each case a linkage arrangement (13) which comprises two main links (20, 21) which are pivotably mounted on a vehicle-mounted main bearing (24) and of which one is driven by means of a main drive, wherein surface bows extend between the linkage arrangements (13) arranged on both sides, a first of which is a front bow (14), a second of which is a front centre bow (15), a third of which is a rear centre bow (16) and a fourth of which is a rear window bow (17), characterized in that, that a clamping bracket (64) is arranged between the linkage arrangements (13) arranged on both sides, which bracket, in the closed position, delimits the top cover (11) on the rear side and which bracket is adjustable by means of a clamping rod arrangement between a lowered position and a raised position, and that the clamping rod arrangement is connected to an actuating link (75), which can be driven by a drive device and is connected to a rear window link arrangement via a drive lever (98), and that, when the top is adjusted from the closed position to the stored position, the rear window bow (17) is adjusted by means of the actuating link (75) in the direction of the clamping bracket (64) during the adjustment of the top from the closed position to the stored position.Top according to Claim 6, characterized in that the rear window link arrangement comprises a front folding lever (86) and a rear folding lever (92), which are supported on the clamping rod arrangement or the clamping bracket (64) and are articulated on the rear window bow (17).Top according to claim 7, characterised in that the two folding levers (86, 92) are connected via a control rod (101) which is articulated to one of the folding levers (86) via a fixed articulation point (89) and is connected to the other of the folding levers (92) via an elongate hole arrangement.Top according to one of Claims 6 to 8, characterized in that the clamping bracket (64) is articulated on both sides in each case to a control link (66) which is connected to a drive lever (68) which is driven by the drive device for the actuating link (75).Top according to claim 9, characterised in that a rear roof link (105) is articulated to the clamping bracket (64) or to the control link (66), which is connected via an articulation point (106) to a coupling rod (43) for actuating the front bow (14) and to which preferably a rear-side sealing section (111) of a top side seal is fixed.Top according to one of Claims 6 to 10, characterized in that the main drive and the drive device for the clamping rod arrangement are formed by separate actuating members.Top according to one of claims 6 to 11, characterised in that the actuation of the main drive and the actuation of the drive device for the clamping rod arrangement take place one after the other during the displacement of the top between the closed position and the storage position.Top of a convertible vehicle, comprising a top cover (11) and a top linkage (12) which can be adjusted between a closed position in which a vehicle interior is spanned and a storage position in which the vehicle interior is released upward, and which, with respect to a vertical longitudinal center plane of the top, has on both sides in each case a linkage arrangement (13) which comprises two main links (20, 21) which are pivotably mounted on a vehicle-mounted main bearing (24) and of which one is driven by means of a main drive, wherein surface bows extend between the linkage arrangements (13) arranged on both sides, a first of which is a front bow (14), a second of which is a front center bow (15), a third of which is a rear center bow (16) and a fourth of which is a rear window bow (17), wherein the front bow (14) is a rear window bow (17) via two front links (37, 37, 38 ) is connected to a middle roof link (34), which is connected in an articulated manner to the two main links (20, 21), characterized in that the front middle bow (15) is mounted pivotably on one of the front links (37) and is connected to a drive lever (53), which is linked to the front bow (14) via a hinge point (54).Top of a convertible vehicle, comprising a top cover (11) and a top linkage (12) which can be adjusted between a closed position in which a vehicle interior is spanned and a storage position in which the vehicle interior is released upward, which comprises a rear-side clamping bracket (64) which, in the closed position, delimits the top cover (11) on the rear side, and which, with respect to a vertical longitudinal centre plane of the top, comprises on both sides in each case a linkage arrangement (13) which comprises two main links (20, 21) which are pivotably mounted on a vehicle-fixed main bearing (24) and of which one is driven by means of a main drive, and a top side seal which, in the closed position, interacts with a lateral pane arrangement of the convertible vehicle and has at least one rear-side sealing section (111), A device for mounting the folding roof linkage on a sealing link of the respective linkage arrangement (13), characterised in that the sealing link experiences a lifting movement together with the clamping bracket (64) when the folding roof linkage is adjusted from the closed position into the storage position.Top according to claim 14, characterised in that the sealing link is a rear roof link (105), which is linked via its front end to a coupling rod (43) for actuating a front bow (14).Top according to claim 14 or 15, characterised in that the clamping bow (64) is articulated to the sealing links arranged on both sides.Top according to one of Claims 14 to 16, characterized in that the linkage arrangements (13) each comprise a control link (66) which brings about the lifting movement of the respective sealing link and of the respective tensioning bracket (64).Top according to claim 17, characterised in that the control link (66) is articulated to the sealing link.Top according to claim 16 or 17, characterised in that the control link (66) is connected to a drive lever (68) which is driven by a drive device and is preferably pivotably mounted on the main bearing (24) fixed to the vehicle.Top according to claim 19, characterised in that an actuating link (75) is articulated on the drive lever (68), which is connected to a clamping rod arrangement by means of which the clamping bracket (64) can be pivoted with respect to the sealing link.Top according to claim 20, characterised in that the actuating link (75) is linked to the drive lever (68) via an adjusting lever arrangement.Top according to one of Claims 19 to 21, characterized in that the main drive and the drive device are formed by separate actuating members.Top according to one of Claims 14 to 22, characterized in that surface bow members extend between the linkage arrangement (13) arranged on both sides, a first of which is a front bow member (14), a second of which is a front middle bow member (15), a third of which is a rear middle bow member (16) and a fourth of which is a rear window bow member (17).Hood according to one of Claims 1 to 23, characterized in that, in the closed position of the hood, the surface bow forms an at least largely continuous supporting surface for the hood cover (11) in the hood longitudinal direction, and, in the closed position, the hood cover (11) rests in a fixing-free manner on at least one of the central bow members (16).

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