Element for integration into a guide rail for a sunroof, roof arrangement and motor vehicle

Abstract

Element for integration into a guide rail (2) for a sunroof of a motor vehicle (30), comprising a vertical wall (14) and a flange surface (4a, 4b) projecting from the vertical wall (14), which is designed for screwing to the guide rail (2) and a frame part (3) of the motor vehicle (30), wherein - the flange surface (4a) in a normally assembled state points towards a dry area, and - the flange surface (4a) tapers towards the vertical wall (14) with respect to a principal extension direction (H) of the vertical wall (14) in such a way that water that has entered a flange area in an operationally assembled state can be directed along the flange surface (4a) towards the vertical wall (14) into a wet area.

Description

[0001] For motor vehicles, elements are known that are integrated into a guide rail, for example, inserted into or mounted on it. Such elements include, for example, lifting guides with a guide channel, which are provided at a front end of sunroof guide rails to change the direction of movement of the kinematic mechanism for opening or closing the sunroof in a short section, compared to the essentially linear movement of the kinematic mechanism in the guide channels of the typically extruded guide rails. A lifting guide guide is known from DE 102014014174 A1. Often, such elements as lifting guides are separate components, with the guide rails being cut out accordingly to allow, for example, a seamless transition of the guide channels from a guide rail to such an element as the lifting guide.

[0002] A guide rail typically also serves as a water channel, directing rainwater that penetrates through the sunroof seals, for example, to a front frame section that also incorporates a water channel. This front frame section can then channel the water through hoses to the vehicle floor. The lifting mechanism, like the lifting frame itself, is typically almost entirely embedded within a wet area of ​​this frame section. Only a flange area, through which the lifting mechanism is bolted to both the front frame section and the guide rail, protrudes from this wet area when installed, specifically into a dry area of ​​the vehicle.

[0003] Vehicle roofs with a sliding roof section are known from DE 10 2005 037 703 A1 and DE 10 2005 007 032 A1, so that a roof opening can be at least partially uncovered.

[0004] One objective of the present invention is to describe a concept for an element for integration into a guide rail which helps to effectively prevent the ingress of water into a dry area of ​​a vehicle.

[0005] The problem is solved by the subject matter of the independent patent claims.

[0006] According to one aspect of the invention, an element for integration into a guide rail for a sunroof of a motor vehicle is disclosed. The element has a vertical wall and a flange surface projecting from the vertical wall. The flange surface is designed for bolting to a guide rail for the kinematics and a frame part of the motor vehicle. In a normally installed state, the flange surface faces a dry area or projects at least partially into it. The flange surface tapers towards the vertical wall with respect to a principal direction of extension of the vertical wall such that, in a normally installed state, water that has penetrated a flange area can be channeled along the flange surface towards the vertical wall into a wet area.

[0007] The term "element" here and in the following refers to a component that is integrated into the guide rail, i.e., mounted to or connected to it. For example, the element extends the guide rail. It might, for instance, continue a cam track of the guide rail. Alternatively, the element may not have a cam track and instead represent a frame element connected to the guide rail.

[0008] According to one embodiment, the element is a lifting mechanism for controlling the kinematics of a sunroof of a motor vehicle.

[0009] Further features and developments of the element in its embodiment as a lifting platform are disclosed below. The described configurations apply equally to elements that are not designed as lifting platforms.

[0010] In its properly installed state, the lifting frame's main direction of extension runs parallel to the vehicle's longitudinal axis. The flange surface tapers towards the front of the vehicle, i.e., forwards. For example, the taper occurs at a predetermined angle, adapted to a predetermined vehicle tilt, such as a 15° incline. In its properly installed state, the flange surface faces the outside of the vehicle. The dry zone is an area within the vehicle that should not come into contact with water to prevent damage. In particular, water could unintentionally enter the vehicle's interior.

[0011] In the following, a lifting mechanism is understood to be a component that has at least one cam track or guide track for controlling the movement of an engagement element that can be coupled to the cam track, such as a bolt, slider, rotary slider, or the like. The lifting mechanism also has further elements or features, independent of the cam track.

[0012] The lifting mechanism is mechanically connected to the guide rail and frame element, for example, by bolting. The flange surface, which may have a bolting point, serves this purpose. The lifting mechanism has at least one cam track that seamlessly continues the essentially straight cam track of the guide rail, thereby changing one direction of movement in the kinematics.

[0013] It was observed that, particularly when the vehicle is parked at an angle, water can enter the transition between the guide rail and the lifting platform at the flange surface and from there drip into the dry area or even into the vehicle interior. The water reaches the dry area via several paths. Either it flows through a groove that accommodates a remaining rib of the guide rail for positioning, then through capillary action onto the flange surface of the bolted connection, from where it drips into the dry area, or it passes through the gap and a larger opening in this gap between the guide rail and the lifting platform directly to the flange that bolts the lifting platform to the frame section and guide rail.Particularly problematic with regard to leakage are situations in which the vehicle remains parked in the rain for a longer period of time on a level surface that is inclined forwards and to the side by 15° in the direction of the vehicle.

[0014] The tapered flange surface of the lifting mechanism allows water that penetrates the flange area under the described conditions to be channeled along the flange surface towards the vertical wall, i.e., back into a wet area. Specifically, in its properly installed state, the flange surface tapers at an acute angle along a straight line towards the vehicle interior. This ensures that water droplets rolling along the groove between the flange surface and a flange surface of the guide rail resting on it are guided along this straight line across the wet area, either to drip into the wet area or to be directed into it along a predominantly vertical wall.

[0015] The lifting mechanism eliminates or significantly reduces the risk of water penetrating the dry area without compromising function, strength and / or cost.

[0016] The invention thus enables any water flow to be directed in such a way that it is reliably returned to the wet area without dripping into the dry area or the vehicle interior. In other words, the flange surface is designed so that any water that has penetrated is directed to the desired locations.

[0017] According to one embodiment, a further flange surface is provided, which is positioned in front of the first flange surface with respect to the main extension direction of the lifting mechanism and projects from the vertical wall, with the further flange surface tapering towards the vertical wall with respect to the main extension direction. Analogous to the above, the further flange surface serves for common bolting with the guide rail and frame element. The further flange surface is designed analogously to the first flange surface and fulfills the same aforementioned advantages and functions. This further contributes to preventing water from entering the dry area of ​​a vehicle.

[0018] In a further embodiment, a recess is formed between the two flange surfaces. In other words, no flange surface is provided between the two flange surfaces. Put another way, there is an area free of flange surface between the two flange surfaces. This spatially and physically separates the two flange surfaces, allowing water to drip off between them and / or reach the vertical wall of the lifting platform.

[0019] According to one embodiment, the lifting mechanism has a channel for the positive-locking reception of a guide rail web, the channel being widened to allow water to flow between the channel and the web when the web is received. The channel is designed to positively lock around or encompass the guide rail web, at least partially along the main extension direction of the lifting mechanism, approximately on three sides. For example, the channel may encompass a remaining portion, such as a section, of the web. The channel is widened to facilitate water drainage. For instance, the channel may be widened laterally, transversely to the vehicle's longitudinal direction, and / or downwards, towards the vehicle floor. In its operational state, the channel forms multiple contact points with the web; continuous contact between the web and the channel wall is not required.

[0020] According to one embodiment, several ribs are arranged in the channel, designed to positively engage the guide rail's web, and a groove is formed within the channel. The groove represents a widening of the channel. The web is positively locked into position within the channel by the ribs. This ensures that any water that enters the channel has sufficient space to drain away, thus preventing water from accumulating.

[0021] In one embodiment, a lip is formed at the rear end of the channel, serving as a bulge. In other words, the bulge at least partially confines the channel or its trough. The bulge is designed to prevent water from entering the channel in a forward direction relative to the vehicle's longitudinal axis. The bulge can also be referred to as a lip or channel rib. For example, the bulge is designed such that, at the anticipated water inlet, the guide rail rib is positioned as close as possible to the guide rail rib around the entire opening to minimize the remaining gap for water entry. This helps prevent water from entering the channel. The bulge acts as a barrier to slow the water flow.

[0022] According to one embodiment, a further ridge is arranged in the channel. Preferably, this further ridge is positioned in front of the further flange surface with respect to the longitudinal direction of the vehicle. The further ridge surrounds the web of the guide rail, for example, on three sides and can be seen as a barrier, analogous to the ridge described above. In one design, the channel has one or more bores, allowing water within it to drain out. These are typically transverse (through) bores drilled into the vertical wall, such as on the underside of the channel. These bores can also be called drain bores. This allows water to safely drain from the channel into the wet area. Optionally, the bores can deepen the channel. In other words, the channel has depressions or troughs in the area of ​​the bores. This creates points of entry for water, directing it to the bores and allowing it to drain away.

[0023] The boreholes create drainage options to reduce the pressure of the water in the canal, which could otherwise cause it to reach the flange surfaces.

[0024] According to one embodiment, at least one bore is arranged in front of the further bulge with respect to the longitudinal direction of the vehicle. "Arranged in front of the further bulge" means that the bore lies along the longitudinal direction of the vehicle from front to rear in front of the further bulge and thus in front of the further flange area. This largely prevents water pressure build-up in front of the further, forward bulge.

[0025] According to one embodiment, an ear-shaped tab is formed at a rear end of the lifting mechanism or at a rear end of the channel of the lifting mechanism for covering one or more openings between the guide rail and the lifting mechanism. The tab is provided at a rear end of the lifting mechanism with respect to the longitudinal direction of the vehicle, for example at the end facing the guide rail, in order to cover openings in gaps between the guide rail and the lifting mechanism.

[0026] According to a further aspect, a lifting mechanism for controlling the kinematics of a sunroof in a motor vehicle is disclosed. The lifting mechanism has a vertical wall and a flange surface projecting from the vertical wall. The flange surface is designed for bolting to a guide rail and a frame component of the motor vehicle. The lifting mechanism has a channel for the positive-locking reception of a web of the guide rail, the channel being widened such that water can flow between the channel and the web when the web is in place.

[0027] The lifting mechanism of the further aspect essentially enables the aforementioned advantages and functions, without the need to taper one or both flange surfaces. The lifting mechanism of the further aspect can be further developed according to the previously described configurations, particularly with regard to the channel design and the related features.

[0028] According to another aspect, a roof assembly is defined for a vehicle roof with a roof opening that can be selectively closed or at least partially opened by means of a movable roof element. The roof assembly comprises a lifting mechanism according to one of the previously described configurations, a guide rail, and a frame element. The lifting mechanism is defined between the guide rail and the frame element, with the lifting mechanism, the guide rail, and the frame element at least partially forming a roof frame section surrounding the roof opening.

[0029] The roof arrangement essentially enables the aforementioned advantages and functions.

[0030] Furthermore, a motor vehicle is disclosed which has a roof arrangement according to the previously mentioned aspect.

[0031] Further advantageous embodiments and functions are disclosed in the following detailed description of an exemplary embodiment.

[0032] The embodiment is described below with reference to the attached figures. Similar or similarly functioning elements are identified by the same reference numerals across all figures.

[0033] The figures show: Fig. 1. A schematic view of a vehicle, Fig. 2 a perspective view of the lifting platform in a state connected with a guide rail and a frame element, Fig. 3 a perspective view of the lifting platform and the guide rail, Fig. 4 a perspective view of the frame part, Fig. 5 to 7 perspective views of the lifting backdrop and Fig. 8 a supervision of the lifting backdrop,

[0034] In Fig. Figure 1 shows a vehicle 30, which has a vehicle roof 31 and a vehicle-mounted roof shell 32, also called a roof skin. The vehicle-mounted roof shell 32 is provided with a roof opening 33, which can be selectively closed or at least partially opened by means of a sliding movable roof element 34.

[0035] The roof opening 33 is surrounded by a roof frame section 35 formed on the vehicle roof 31. The roof frame section 35 preferably comprises guide rails 2 arranged on both sides and one or more frame elements (see below). The movable roof element 34 is slidably mounted in the guide rails 2. The guide rails 2 of the kinematics for the roof element 34 are arranged opposite each other in the longitudinal direction of the vehicle. Together with a front frame part 3 and a rear frame part 37, these guide rails 2 form the roof frame section 35 as a rectangular frame for the sunroof.

[0036] The movable roof element 34 can also be referred to as a sliding roof and preferably has a glass cover 36 and sliding elements by means of which the movable roof element 34 with the glass cover 36 is slidably mounted in the guide rails 2.

[0037] The terms used here and in the following, such as "rear" or "front," refer to the longitudinal axis of a vehicle and the typical direction of travel of a roadworthy motor vehicle. The longitudinal axis can also be referred to as the horizontal direction or x-axis. A vertical direction corresponds to a y-direction or y-axis (see the coordinate system shown in the figures).

[0038] At a front end 38 of each of these two guide rails 2 there is a lifting cam 1, which is described below based on the Fig. Sections 2 to 8 are described in detail. The lifting platform 1 is an element described at the beginning. Reference is made only to one side of the vehicle 30 with respect to the vehicle's longitudinal axis. The explanations apply equally to the other, opposite side.

[0039] Fig. Figure 2 shows a perspective view of a roof assembly with a guide rail 2 at the front end 38, a lifting mechanism 1, and part of the front frame element 3. The front frame element is partially cut away for better visibility. The lifting mechanism 1 is positioned between the guide rail 2 and the front frame element 3 and is fixed to them. For this purpose, the guide rail 2 and the front frame element 3 are designed and cut out such that the lifting mechanism 1 is positively engaged with both elements and mechanically connected to them.

[0040] Fig. Figure 3 shows the guide rail 2 with the lifting platform 1 arranged on it in perspective from a rear view direction, which in operation is directed approximately towards the rear of a vehicle.

[0041] Fig. Figure 4 shows the front frame element 3 in perspective.

[0042] The Fig. Figures 5 to 8 show various detailed views of the lifting backdrop 1.

[0043] The guide rail 2 has two horizontal ribs or rails 21, 22, which form a substantially straight first cam track 21', which can also be called a guide track. The first cam track 21' serves to provide positive guidance on both sides of one or more sliders of a kinematic mechanism for the roof element 34 (see figure). Fig. 1 (gliders and kinematics not shown). The lifting cam 1 lowers the tracks of these rails 21, 22 and thus the cam track 21' from a predominantly straight path via an S-shaped path to a lower level in the z-direction at a front end of the entire path for the kinematics. Straight means that the path of the first cam track 21' lies approximately horizontally or approximately parallel to the roof shell 32 (see figure 1). Fig. 1) proceeds.

[0044] The guide rail 2 has a water channel 20, which is bounded on an outer side, i.e., on a side facing away from the vehicle's center plane, by a vertical web 23. Two ribs 21, 22 project predominantly horizontally inwards from this vertical web 23, i.e., towards the vehicle's center plane. At the upper end of the vertical web 23, a predominantly horizontal flange surface 19 or flange area is formed, facing outwards, i.e., away from the vehicle's center plane, for various fastening applications.

[0045] The guide rail 2 is cut out at its front end 38 such that the first cam track 21' seamlessly transitions into a second cam track 9' of the lifting cam 1. The second cam track 9' is formed by corresponding ribs or rails 9a, 9b analogous to the first cam track 21'. In particular, opposing functional surfaces 22' of the ribs 21, 22 and the web 23 seamlessly transition into corresponding functional surfaces 17 of the lifting cam 1.

[0046] A narrow section 23' of the web 23, remaining at one upper end, extends together with the flange surface 19 to the front end of the lifting bracket 1. Optionally, the section 23' extends over the lifting bracket 1 and forms contact and positioning surfaces of the lifting bracket 1.

[0047] The lower rib 21 is milled at its upper front end to ensure a smooth transition to the second cam track 9', also called the guide track, of the lifting cam 1. To produce this milling, a relatively large opening is required in the vertical web 23 of the guide rail 2, which is not closed by a vertical wall 14 of the lifting cam 1 (see figure). Fig. 5).

[0048] In the exemplary embodiment, the lifting bracket 1 is formed in one piece, for example from a metal material. The vertical wall 14 of the lifting bracket 1 represents a basic element or base body to which all other elements of the lifting bracket 1 are arranged, molded, and / or attached. In the operationally assembled state, this vertical wall 14 lies predominantly parallel to and in the same plane as the vertical web 23 of the guide rail 2. In other words, the vertical wall 14 extends along a principal direction H of the lifting bracket 1 (see figure). Fig. 5 and Fig. 8) From this vertical wall 14, the two S-shaped, essentially parallel ribs 9 project predominantly horizontally inwards. As already mentioned, they represent the extension of the ribs 21, 22 of the guide rail 2, ending at their front end at a noticeably lower level in the longitudinal direction of the vehicle, predominantly horizontally or approximately in the direction of the roof surface.

[0049] At an upper end of the wall 14 with respect to the z-direction, the wall 14 is divided in a y-shape to form a longitudinally extending channel 10, which encompasses the upper remaining section 23' of the web 23 (see also Fig. 7) In other words, the lifting platform 1 has a channel-like recess for the form-fitting reception of the web 23 or the section 23', i.e., encompassing and surrounding it. The vertical wall 14 has the channel 10.

[0050] On an outer side of the channel 10, that is, on a side of the lifting mechanism 1 facing away from the vehicle's longitudinal center plane during operation, the upper end of the channel 10 or the wall 14 transitions into two outwardly projecting flange surfaces 4a, 4b. In other words, the lifting mechanism 1 has two flanges 4a, 4b that extend substantially horizontally from the vertical wall 14. In the assembled state, the flange surfaces 4a, 4b rest against the flange surface 19 of the guide rail 2 from below. From above, they rest on bosses of the front frame section 3 via corresponding screw points 6. In the exemplary embodiment, the screw points 6 are formed by corresponding bores or screw holes. The flanges 4a, 4b are plate-shaped areas of the lifting mechanism 1.

[0051] The guide rail 2, the lifting bracket 1, and the front frame section 3 are connected via preferably two screw points 6, one of which is positioned relatively far back in the first flange surface 4a and the other further forward in the second flange surface 4 of the lifting bracket 1. One or more additional optional screw points (not shown) can connect the lifting bracket 1 to the front frame section 3, with the vertical wall 14, for example, having such a screw point. Optionally, more or fewer flange surfaces or flanges can also be provided on the lifting bracket 1.

[0052] In its normal operating state, the lifting mechanism 1 is almost completely embedded downwards within a so-called wet zone of the front frame section 3. Only the flange surfaces 4a and 4b project outwards beyond the wet zone into a dry zone of the front frame section 3, from which water can drip into the vehicle interior. The wet zone is defined as the area oriented towards the vehicle's longitudinal center plane, in which water, such as rainwater, and moisture can be present without causing damage to the vehicle. In particular, any water that has penetrated can drip downwards in the z-direction during operation and flow away via the water channel 20 of the guide rail 2 and / or corresponding elements of the front frame section 3, and / or be drained away, for example, by means of hoses.

[0053] As in Fig. As can be seen from 5 to 8, the flange surfaces 4a, 4b of the lifting cam 1 are designed to be at least so large around the screw points 6 that, for example, an edge of an embossing possibly contained in the flange 19 of the guide rail 2 can rest on the surface of the flange 4 all around and seal if possible.

[0054] In the exemplary embodiment, the flange surfaces 4a, 4b have a circular base shape, each formed around a screw connection point 6. Each of the flange surfaces 4a, 4b tapers towards the vertical wall 14 or towards the channel 10 at an acute angle. In this exemplary embodiment, each flange surface 4a, 4b tapers tangentially from a point P on the base shape, which defines a maximum vertical distance of a flange surface 4a, 4b to the channel 10. In other words, the respective flange surface 4a, 4b is extended from this predominantly circular base shape forward in the longitudinal direction of the vehicle along a straight line 5 (spatially speaking, a plane) that lies tangentially on the outside of the base shape, tapering to a point at the most acute angle possible until reaching an upper edge of the channel 10 or the vertical wall 14. The straight line 5 can also be referred to as a straight flank or straight section.

[0055] Between the limiting straight line 5 of the tapered extension of the first flange surface 4a with the rear screw connection point 6 and the second flange surface 4b, approximately at the beginning of the rounded base of the second flange surface 4a, a recessed area 13a, also called the first recess 13a, without a flange surface, is formed. This allows water or water droplets that have penetrated the flange area to follow the tapered section, approximately along the straight line 5, and come into direct contact with the predominantly vertical wall of the channel 10, i.e., the vertical wall 14, and flow downwards into the wet area. In other words, water or water droplets from the dry area would be returned to the wet area and therefore cannot drip into the dry area and cause damage there.

[0056] A rear flange end 18 of the first flange 4a, approximately the basic shape of the first flange 4a, of the rear screw connection point 6, optionally has a small, forward-facing second recess 13b. The edge of this recess extends rearward on the outward-facing side approximately opposite to the direction of travel to a small point projecting beyond the circular contour, so that the lowest point of the second recess 13b does not penetrate the circular contour inwards, thus avoiding the edge of any indentations that may be present. The inward-facing edge of the second recess 13b is also the upper outer edge of the channel 10. The second recess 13b is, for example, approximately U-shaped. The second recess 13b prevents water droplets from flowing laterally outwards and facilitates dripping or flowing off the vertical wall 14.

[0057] Such a second recess can also be formed at a corresponding rear end of the second flange 4b.

[0058] From the rounded base of the second flange surface 4b of the front mounting point 6, a web 8' can extend rearward approximately parallel to the straight line 5 of the first, rear flange surface 4a and at a distance from the first flange surface 4a slightly larger than a water droplet. At the end of this web 8', an upwardly projecting lug 8 is attached, which serves as an assembly aid for positioning the web 8' in a bore (not shown) in the flange surface 19 of the guide rail 2. This inclined web 8' also serves to direct water droplets forward and to prevent water from running off the flange into the dry area, particularly when the vehicle is parked at an angle. Preferably, the minimum distance between the web 8' and the first flange 4a is at least 4 mm.

[0059] At the front end of the straight line 5 of the front flange 4, this line terminates on a transverse rib 15, which is also preferably located at the front end of the entire lifting track 1 and which connects the narrow remainder of the front second flange 4 to the vertical wall 14. This rib 15 projects outwards well beyond the straight line 5 and carries a retaining lug 7, which extends rearwards through a cutout in the flange surface 19 of the guide rail 2, engages this flange surface 19 from above, and also secures the positioning during assembly. The retaining lug 7 consists at its front end of the extension of the transverse rib 15. At the upper end of the rib 15, which extends upwards through the cutout across the flange surface, the rearward-pointing part of the retaining lug 7 begins. This part points rearwards approximately parallel to the straight line 5 of the second flange 4b.Preferably, the rearward-facing portion of the retaining lug 7 has a distance from the flange surface 4b such that it is required for the representation of the injection molds, so that the second flange 4b ​​and retaining lug 7 can be produced together from a vertically opening mold pair. For example, this distance is at least 2 mm.

[0060] As already mentioned, the channel 10 of the lifting mechanism 1 encompasses the remaining web 23 of the guide rail 2 at its front end. The web 23 should bear against the (inner) walls of the channel 10 at least at so many points that its transverse position is determined by the web 23. For this purpose, a few small protrusions on the walls of the channel 10 are generally sufficient.

[0061] In the exemplary embodiment, the channel 10 has several ribs 10' that engage positively with the web 23 of the guide rail 2. Elsewhere, a cross-section of the channel 10 is widened. In other words, the channel 10 is widened in the y-direction transverse to the longitudinal direction of the vehicle. In the y-direction, the channel 10, i.e., the opposing inner walls of the channel 10, is wider than in the areas with the ribs 10'. Thus, the channel 10 is widened laterally. Furthermore, the channel is widened downwards in the z-direction, so that, in the assembled state, a significantly larger gap is formed between the channel 10 and the web 23 in the Z-direction. In other words, the channel 10 itself has a channel 25. This widens a cross-section of the channel 10 such that water can flow freely down the channel below the web 23. The channel 25, or rather...Channel 10 can be divided into several sections, as shown in the exemplary embodiment, with cross-sections and dimensions varying.

[0062] At a rear end 26 of the channel 10, with respect to the x-direction, the channel is open to the rear. This is a point where water, for example, running along the lower rib 21 of the guide rail 2, can penetrate into the channel 10. For this reason, a rim is raised at the rear end 26 to form a rear wall 16a. In the assembled state, this rear wall 16a extends as close to the web 23 as possible, approximately to 0.5 mm, within the tolerances of the components, without impeding assembly. This rear wall 16a prevents water from penetrating the channel 10 as much as possible. The rear wall 16a at least partially surrounds the channel 25.

[0063] A further front wall 16b is positioned in the channel 10 immediately before the start of the second flange 4b ​​of the front screw connection point 6, extending transversely through the entire channel 10. This wall also extends as close as possible around the web 23 within possible tolerances during operation, in order to seal the channel 10 against the web 23 of the guide rail 2. The front wall 16b preferably runs around the web 23 on three sides within the channel 10 in the operationally assembled state.

[0064] Furthermore, optionally, transverse boreholes 12 are drilled into the wall 14 of the lifting platform 1. These boreholes open the channel 10 on its lower side and optionally also deepen it locally. Water flowing forward through the channel 10 falls into these depressions and flows out laterally through the boreholes 12. At least one borehole 12 is positioned directly in front of the front wall 16b, so that water pressure is largely prevented from building up in front of this front wall 16b.

[0065] The combination of embankments 16a, 16b to prevent the ingress of water, the enlargement of the cross-section of the channel 10 and the bores 12 minimizes the amount of water entering the lifting cam 1, but above all, this combination prevents an increase in water pressure that could force water into a gap between the flange surfaces 4a, 4b of the lifting cam 1 and the flange surface 19 of the guide rail 2.

[0066] Between the cutout of the guide rail 2 and the lifting cam 1 there is a gap 24, which can also be called a recess or notch (see Fig.2) This gap 24 has a significant enlargement directly above the trimmed and milled end of the lower rib 21, resulting from the milling tool used to mill the rail 21. An ear-shaped protrusion or tab 11 is formed at the rear end 26 of the outer, predominantly vertical wall of the channel 10. This covers the gap 24 from the rear during operation or when assembled, thus preventing water from gushing up from below onto the rear first flange 4a and / or preventing so much water from entering the space between frame part 3 and lifting mechanism 1 that it spills out of frame part 3 at any point.

[0067] The lifting platform 1 can also have individual features as described. For example, the described shape of the flange surfaces 4a, 4b, which taper towards the center of the vehicle in the direction of an expected water flow or the possible vehicle inclination when exposed to water, or towards the wet area of ​​the frame section 3, can be used without any further described features. Likewise, the measures for reducing the amount and pressure of water in the channel 10 can be used without other features such as the design of the flanges 4a, 4b. These would include one or more ridges 16a, 16b to prevent water ingress, the enlargement of the cross-section of the groove 10, and the bores for water drainage 12. The ear 11 can also be used as a standalone measure or in combination with the specific design of the channel 10 and / or the flange surfaces 4. Reference symbol list 1 Lifting platform 2 guide rails 3 front frame part 4a, 4b Flange surfaces of the lifting platform 5 Straight 6 Screw point 7 Retaining nose 8 Nose 8' Bridge 9a, 9b rail 9' second scenery track 10-channel 11 tab 12 bore 13a, 13b recess 14 vertical wall 15th rib 16a rear wall 16b front wall 17 Functional interface 18 rear flange end 19 Flange area of ​​a guide rail 20 Water channel 21 rail 21' first scenery track 22 rail 22' functional surface 23 vertical bridge 23' section 24 columns 25 gutter 26 rear end of the channel 30 vehicles 31 Vehicle roof 32 Roof shell 33 Roof opening 34 roof element 35 Roof frame section 36 glass lids 37 rear frame part 38 front end P point H Main direction of extension

Claims

[1] Element for integration into a guide rail (2) for a sunroof of a motor vehicle (30), comprising a vertical wall (14) and a flange surface (4a, 4b) projecting from the vertical wall (14), which is designed for screwing to the guide rail (2) and a frame part (3) of the motor vehicle (30), wherein - the flange surface (4a) in a normally assembled state points towards a dry area, and - the flange surface (4a) tapers towards the vertical wall (14) with respect to a principal extension direction (H) of the vertical wall (14) in such a way that water that has entered a flange area in an operationally assembled state can be directed along the flange surface (4a) towards the vertical wall (14) into a wet area. [2] Element according to claim 1, wherein a further flange surface (4b) is provided which is arranged in front of the flange surface (4a) with respect to the principal extension direction (H) and projects from the vertical wall (14), wherein the further flange surface (4b) tapers towards the vertical wall (14) with respect to the principal extension direction (H). [3] Element according to claim 2, wherein a recess (13a) is formed between the two flange surfaces (4a, 4b). [4] Element according to one of the preceding claims, wherein the element has a channel (10) for the positive-locking reception of a web (23) of the guide rail (2), wherein the channel (10) is widened so that, in the received state of the web (23), water can flow between the channel (10) and the web (23). [5] Element according to claim 4, wherein several ribs (10') are arranged in the channel (10) which are designed for the positive locking reception of the web (23) of the guide rail (2), and wherein a groove (25) is formed in the channel (10). [6] Element according to claim 4 or 5, wherein a rim is formed at a rear end (26) of the channel (10) which serves as a wall (16a). [7] Element according to one of claims 4 to 6, wherein a further wall (16b) is arranged in the channel (10). [8] Element according to claim 7 in conjunction with claim 2, wherein the further wall (16b) is arranged in front of the further flange surface (4b) with respect to the longitudinal direction of the vehicle. [9] Element according to any one of claims 4 to 8, wherein the channel (10) has one or more bores (12) so that water located in the channel (10) can flow out of the channel (10) via the bores. [10] Element according to claim 9 in conjunction with claim 7 or 8, wherein at least one bore (12) is arranged in front of the further wall (16b) with respect to the longitudinal direction of the vehicle. [11] Element according to one of claims 4 to 10, wherein an ear-shaped tab (11) is formed at a rear end (26) of the channel (10) of the element for covering one or more openings between the guide rail (2) and the element. [12] Element for controlling a kinematics of a sunroof of a motor vehicle (30), comprising a vertical wall (14) and a flange surface (4a, 4b) projecting from the vertical wall (14), which is designed for screwing to a guide rail (2) and a frame part (3) of the motor vehicle (30), wherein the element has a channel (10) for positively interlocking reception of a web (23) of the guide rail (2), wherein the channel (10) is widened so that, in the received state of the web (23), water can flow between the channel (10) and the web (23). [13] Element according to one of the preceding claims, wherein the element is a lifting cam (1) for controlling a kinematics of a sunroof of a motor vehicle (30). [14] Roof arrangement for a vehicle roof (31) with a roof opening (33) which can be selectively closed or at least partially opened by means of a movable roof element (34), comprising an element according to one of the preceding claims, a guide rail (2) and a frame element (3), wherein the element is fixed between the guide rail (2) and the frame element (3), wherein the element, the guide rail (2) and the frame element (3) at least partially form a roof frame section (35) surrounding the roof opening (33). [15] Motor vehicle (30) comprising a roof arrangement according to claim 14.

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