Wind deflector with vehicle-mounted base for attaching a deflector element

Abstract

A wind deflector for an openable vehicle roof with a displaceable cover element (16), comprising a stretchable deflector element (30) made of a flat, flexible material, a pivotable deployment bracket (22) and a base fixed to the vehicle, wherein the deflector element (30) is fastened at its lower edge via a lower edge strip (34) to the vehicle-fixed base and at its upper edge to the pivotable deployment bracket (22), wherein the vehicle-fixed base comprises a support section to which a fastening strip (44, 44') is fastened, characterized in that the lower edge strip (34) has a uniform cross-section over its extent with a hook geometry which cooperates with the fastening strip (44, 44'), wherein the fastening strip (44, 44') has locking projections which are engaged behind by the hook geometry of the lower edge strip (34) and which are each formed by a notch (50) of the fastening strip (44, 44').

Description

The invention relates to a wind deflector for an openable vehicle roof having a displaceable cover element with the features of the preamble of claim 1.Such a wind deflector is known from practice and is arranged in particular in the region of a front edge of a roof opening of a vehicle roof, which can be selectively closed or at least partially released by means of a displaceable cover element. As a deflector element, the known wind deflector comprises, for example, a stretchable net that forms a planar, flexible material and that is connected at its lower edge via a lower edge strip to a vehicle-fixed base that is formed by a roof frame or the like. At its upper edge, the stretchable net is connected to an erecting bow, for example via an upper edge strip. The stay has a U-shaped course and is pivotably mounted with its free legs, which each form a stay arm, in the region of a respective roof-fixed guide rail for the cover element. Depending on the open position of the cover element, the deployment bow is pivotable between a pressed-down resting position, in which the deflector element is folded, and a deployed operating position, in which the deflector element is clamped and forms an inflow surface. The lower edge strip is of piping-like design and engages in a piping channel of the vehicle-mounted base. The lower edge strip is connected in particular by a sewing process carried out manually. The piping channel is formed in particular from a plastic trough which is fastened to the vehicle-mounted base, which can be formed from a steel frame. The plastic trough is manufactured according to an injection molding process, so that a cost-intensive tool is required for manufacturing. In addition, the plastic trough requires installation space in the roof longitudinal direction, which in turn takes place at the expense of the size of the roof opening in the roof longitudinal direction.The publication KR 1020200077644 A discloses a wind deflector which comprises a tensionable deflector element and an deployment bow. The deflector element is fastened at its lower edge to a vehicle-mounted base by means of an edge strip. At its upper edge, the deflector element is fastened to the stay. The vehicle-mounted base comprises a strip which forms a pocket into which the deflector element is inserted with its edge strip. The edge strip is held in the pocket by means of a holding section of the strip.The publication CN 203172404 U discloses a wind deflector which has a deflector element which has a respective edge strip on its upper edge and on its lower edge. At its upper edge, the deflector element is fastened to a deflector bracket via the relevant edge strip. At its lower edge, the deflector element is fastened to a vehicle-mounted base via the edge strip formed there.The invention is based on the object of creating a wind deflector in which the connection of a foldable deflector element to a vehicle-mounted base is connected with a small installation space in the longitudinal direction of the roof.This object is achieved according to the invention by the wind deflector having the features of claim 1.According to the invention, it is therefore proposed that a fastening strip is arranged on a carrier section of the vehicle-mounted base and the lower edge strip of the deflector element has a hook geometry, so that the deflector element can be hooked onto the fastening strip which is fastened to the carrier section. The fastening strip can be designed to be very thin, which in turn has a positive effect on the required installation space in the longitudinal direction of the roof. The fastening of the deflector element to the vehicle-mounted base therefore does not impair, or only to a slight extent, the maximum available see-through area which is predefined by the roof opening of the vehicle roof. Through the use of the fastening strip, the interaction with the carrier section creates a groove into which the lower edge strip can be inserted. The hook geometry prevents the deflector element from being released from the vehicle-mounted base in the event of a load. The deflector element is thus secured by the hook geometry on the vehicle-mounted base or the fastening strip.In the wind deflector according to the invention, the fastening strip has latching projections which are engaged behind by the hook geometry of the lower edge strip of the deflector element. The latching projections project in particular into a gap or intermediate space which is formed between the carrier section of the vehicle-mounted base and the fastening strip and in which the lower edge strip of the deflector element is inserted.The latching projections are formed by a notch of the fastening strip.The fastening strip can be manufactured from any desired, dimensionally stable material. In particular, however, the fastening strip is manufactured from a sheet metal and is designed, for example, as a stamped / bent part.In order to ensure a connection of the deflector element over its entire extent to the vehicle-mounted base, the fastening strip preferably has a U-shaped course, which corresponds to the course of the lower edge strip of the deflector element. The fastening strip, together with the carrier section, forms the gap over its entire course, into which the lower edge strip of the deflector element can be inserted.A particularly simple mounting of the fastening strip results if it is fastened to a surface of the carrier section which faces a roof opening which can be selectively closed or released by means of the displaceable cover element. The fastening strip can be welded, riveted, screwed, soldered or else bonded to the carrier section.In a preferred embodiment, the carrier section of the vehicle-mounted base is formed by a roof frame, on which in particular the stay bracket is pivotably mounted and which also defines the roof opening, which forms the see-through region of the relevant vehicle roof.In order to define and limit the insertion depth of the lower edge strip into the interspace or gap between the carrier section and the fastening strip, the lower edge strip can have a stop rib which bears against the fastening strip, in particular against an upper edge surface of the fastening strip.In order to ensure that the lower edge strip is deformable for the mounting on the one hand and also hooks onto the fastening strip on the other hand, in a special embodiment of the wind deflector according to the invention it is made of a spring-elastic material, in particular also of a rubber-elastic material.In a particularly cost-effective embodiment of the wind deflector according to the invention, the lower edge strip is an extrusion profile.The invention also relates to a vehicle roof which comprises a roof opening and a wind deflector of the type described above.Further advantages and advantageous embodiments of the subject matter of the invention can be derived from the description, the drawing and the patent claims.Exemplary embodiments of the subject matter of the invention are schematically shown in simplified form in the drawing and are explained in more detail in the following description. It shows: FIG. 1 is a perspective top view of a vehicle roof with a wind deflector according to the invention; FIG. 2 shows a schematic side view of the wind deflector; FIG. 3 shows a perspective view of a roof frame of the vehicle roof with a fastening system for a wind deflector network; FIG. 4 is a top view of the roof frame; FIG. 5 is a section through the roof frame along the line V--V in FIG. 4; FIG. 6 is an enlarged view of the area VI in FIG. 3 ; FIG. 7 is a view corresponding to FIG. 3 of the roof frame, but without a lower edge strip of a deflector element; FIG. 8 is an enlarged view of the region VIII in FIG. 7 ; FIG. 9 shows a first perspective illustration of the lower edge strip of the deflector element; FIG. 10 shows a second perspective illustration of the lower edge strip of the deflector element; FIG. 11 is a first perspective view of a fastening strip of the roof frame; FIG. 12 shows a second perspective illustration of the fastening strip of the roof frame; FIG. 13 is a section through the roof frame and the deflector element along the line XIII-XIII in FIG. 5 ; FIG. 14 is a sectional view of the roof frame and the deflector element taken along the line XIV-XIV in FIG. 5 ; FIG. 15 is a section corresponding to FIG. 14 through a roof frame, but for an alternative embodiment of a fastening strip; and FIG. 16 shows a section through the lower edge strip of the deflector element alone.FIG. 1 shows a motor vehicle 10 which has a vehicle roof 12 which is provided with a roof opening 14 which can be selectively closed or at least partially released by means of a displaceable cover element 16.The cover element 16 is part of a roof opening system which, for displacing the cover element 16, has an adjustment kinematics which is guided in guide rails, not shown in more detail, which are arranged on both sides of the roof opening 14 with respect to a vertical longitudinal center plane of the vehicle. The guide rails are mounted on a roof frame 18 which is shown in Figs. 3-5 and which defines the roof opening 14. Arranged adjacent to a front or front edge region of the roof opening 14 is a wind deflector 20 which can be deployed as a function of the position of the cover element 16 and extends substantially in the transverse direction of the vehicle and is described in more detail below. The wind deflector 20 can prevent any disturbing air currents and air vortices from arising in the vehicle interior of the motor vehicle 10 when the roof opening 14 is released, that is to say when the cover element 16 is moved back.The wind deflector 20 comprises an deployment bow 22, which has a U-shaped course in the roof transverse direction in the widest sense and has two legs 24A and 24B serving as deployment arms, which are connected to one another via a transverse leg 26 extending in the vehicle transverse direction. The legs 24A and 24B are pivotably mounted at their ends facing away from the transverse leg 26 in the region of a longitudinal bar 27A or 27B of the roof frame 18 in each case and are prestressed in the deployment direction, for example, by means of a deployment spring 28. The degree of deployment of the legs 24A and 24B and thus of the deployment bracket 22 is determined by the position of the cover element 16 in the vehicle longitudinal direction. The cover element 16 namely interacts with the deployment bow 22 in such a way that, when the roof opening 14 is closed starting from an open or release position, it runs from behind onto the legs 24A and 24B and presses these downward into a rest position counter to the force of the deployment springs 28. When the cover element 16 is moved from the closed position closing the roof opening 14 into the release position, on the other hand, the legs 24A and 24B are released, so that the deployment bow 22 can automatically pivot into an active position by the action of the deployment springs 28 acting on the legs 24A and 24B.The wind deflector 20 described in more detail with reference to FIGS. 2 to 16 comprises a deflector element 30, which is manufactured from a woven fabric or net and is therefore formed from a planar, flexible and foldable material. At its upper edge, the deflector element 30 is connected to the deployment bow 22, for example by means of a piping. At its lower edge, the deflector element 30 is connected to the roof frame 18 via a fastening system 32, which forms a vehicle-mounted base of the wind deflector 20. In the deployed state of the deployment bow 22, the deflector element 30 is clamped between the deployment bow 22 and the roof frame 18. In the lowered state of the display bracket 22, the deflector element 30 is arranged in folded form between the depressed display bracket 22 and the roof frame 18.The fastening system 32, by means of which the deflector element 30 is connected to the roof frame 18, comprises a lower edge strip 34, which represents an extrusion profile and has a strip-shaped fastening region 36, via which it is connected to the lower edge region of the deflector element 30. The lower edge strip 34 can be sewn, glued or welded to the deflector element 30.Furthermore, the lower edge strip 34, which is made of a spring-elastic or rubber-elastic material, comprises a lower latching section 38 having a hook geometry in cross section, and a stop rib 40 delimiting the latching section 38 at the top.The roof frame 18, which forms the vehicle-mounted base of the wind deflector 20 and is designed as a steel frame, has a substantially vertically oriented wall section 42 which constitutes an inner wall which extends in the vehicle transverse direction and faces the roof opening 14. A fastening strip 44 is fixed to the wall section 42, which is designed as a stamped / bent part and can likewise be made of steel or another metallic material. The wall section 42 is thus a carrier section for the fastening strip 44.The fastening strip 44 has lower, tab-like fixing sections 46, at which it is welded to the wall section 42. Alternatively, the fastening strip 44 can also be riveted or screwed to the wall section 42 of the roof frame 18.Above the fixing portion 46, the fastening strip 44 together with the wall portion 42 delimits a receiving gap 48 for the latching portion 38 of the lower edge strip 34. in order to be able to receive the lower edge strip 34 or its latching portion 38 in the receiving gap 48 in a pull-out-proof manner, the fastening strip 44 has notches 50 on its upper edge region, which protrude in the direction of the wall portion 42 and which are engaged behind by the hook-shaped latching portion 38 of the lower edge strip 34. The notches 50 are formed over the extent of the fastening strip 44 at regular intervals.As can be seen from FIGS. 9 to 12, the fastening strip 44 and the lower edge strip 34 each have a U-shaped course in the widest sense and each have a transverse leg which extends in the transverse direction of the roof and two free end legs which extend in the longitudinal direction of the roof in the region of the longitudinal beams 27A and 27B of the roof frame 18 (cf. FIGS. 3 and 7 ).During the assembly of the wind deflector 20, the lower edge strip 34 fastened to the deflector element 30 is inserted from above into the receiving gap 48 between the wall section 42 and the fastening strip 44 until the stop rib 40 abuts against the upper edge of the fastening strip 44. Then, the hook-like latching section 38 of the lower edge strip 34 spreads open in such a way that it engages under the notches 50, whereby the deflector element 30 is fastened to the roof frame 18 in a pull-out-proof manner.FIG. 15 shows a variant of a fastening strip 44' which corresponds substantially to the fastening strip described above, but differs therefrom in that it has tab-like fixing portions 46' which project downward and have an L-shaped course and thus provide a greater contact surface for connection to the roof frame than the fixing portions described above.List of reference characters10 Motor vehicle 12 vehicle roof 14 roof opening 16 cover element 18 roof frame 20 wind deflector 22 deployment bow 24A, B leg 26 transverse leg 27A, B longitudinal beam 28 deployment spring 30 deflector element 32 fastening system 34 lower edge strip 36 fastening region 38 latching section 40 stop rib 42 wall section 44, 44' fastening strip 46, 46' fixing section 48 receiving gap 50 notches

Claims

Wind deflector for an openable vehicle roof having a displaceable cover element (16), comprising a stretchable deflector element (30) made of a flat, flexible material, a pivotable deployment bracket (22) and a vehicle-fixed base, wherein the deflector element (30) is fastened at its lower edge to the vehicle-fixed base via a lower edge strip (34) and at its upper edge to the pivotable deployment bracket (22), wherein the vehicle-fixed base comprises a carrier section to which a fastening strip (44, 44') is fastened, characterized in that the lower edge strip (34) has a uniform cross section over its extension with a hook geometry which interacts with the fastening strip (44, 44'), wherein the fastening strip (44, 44') has latching projections, which are engaged behind by the hook geometry of the lower edge strip (34) and which are each formed by a notch (50) of the fastening strip (44, 44').Wind deflector according to Claim 1, characterized in that the fastening strip (44, 44') comprises a metallic material, in particular a sheet metal.Wind deflector according to Claim 1 or 2, characterized in that the fastening strip (44, 44') is a stamped / bent part.Wind deflector according to one of Claims 1 to 3, characterized in that the fastening strip (44, 44') has a U-shaped course which corresponds to the course of the lower edge strip (34) of the deflector element (30).Wind deflector according to one of Claims 1 to 4, characterized in that the fastening strip (44, 44') is fastened, in particular welded, to a surface of the carrier section facing a roof opening (14).Wind deflector according to one of Claims 1 to 5, characterized in that the carrier section is formed by a roof frame (18), on which in particular the deployment bracket (22) is pivotably mounted.Wind deflector according to one of Claims 1 to 6, characterized in that the lower edge strip (34) has a stop rib (40) which bears against the fastening strip (44, 44').Wind deflector according to one of Claims 1 to 7, characterized in that the lower edge strip (34) is produced from a spring-elastic material.Wind deflector according to one of Claims 1 to 8, characterized in that the lower edge strip (34) is an extrusion profile.Vehicle roof comprising a roof opening (14) and a wind deflector according to one of Claims 1 to 9.

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