Openable roof with wind deflector

Abstract

The invention relates to an openable vehicle roof (2) with a wind deflector device (6), comprising a wind deflector bow (7) made of plastic material and having a central wind deflector profile (8) with lateral opening arms (9), wherein according to the invention it is provided that at least the wind deflector profile (8) has a profile leg (14) which delimits a groove (15) formed on the wind deflector profile (8) and open and extending downward, and the profile leg (14) has a molded or mounted fastening device (16) for a mounting part (17) on its inner side (18) facing the groove (15). The invention also relates to a tool for producing the wind deflector bow.

Description

Technical Field

[0001] The invention relates to an openable vehicle roof with a wind deflector device, the wind deflector device comprising a wind deflector bow, which is manufactured from a plastic material and has a central wind deflector profile with lateral window opening arms (Ausstellarm). The invention also relates to a tool for manufacturing the wind deflector bow of the wind deflector device of the openable vehicle roof by means of plastic injection molding or plastic foaming in a mold cavity between two templates, wherein at least one ejector channel is provided in one template, the ejector channel having an ejector received or placed therein. Background Art

[0002] A wind deflector device with a wind deflector bow is known from DE 10 2005 063 099 A1. The central wind deflector profile has an upwardly open groove into which a mounting part for holding a wind deflector net is inserted and held by means of projections of a fastening device. The mounting part is arranged and fastened in the inflow area of ​​the wind deflector profile, so that protective measures must be taken to avoid undesirable noise generation due to air turbulence. Summary of the invention

[0003] The object of the present invention is to provide a vehicle roof of the type mentioned in the introduction which is improved with regard to the design of the wind deflector bow and to provide a tool for producing the wind deflector bow.

[0004] In the vehicle roof mentioned at the outset, the object is achieved according to the invention in that at least the wind deflector profile has a profile leg which delimits a groove which is formed on the wind deflector profile and is open downward and extends along it, and the profile leg has a molded or mounted fastening device for the mounting part on its inner side facing the groove.

[0005] Furthermore, in the tool mentioned at the outset, the object is achieved according to the invention in that the mold cavity is provided for forming a windshield profile of at least one center of the windshield arch, and when the tool is closed, the ejector is received in the recess of the forming web of the template, which holds the ejector and is arranged with its end side flush with the end face of the forming web, which forms the bottom of the groove to be formed on the windshield profile.

[0006] Advantageous embodiments of the invention are described in the dependent claims.

[0007] The wind deflector arch according to the invention is therefore characterized in that it is configured for mounting a mounting element on the underside. Such a mounting element is therefore arranged outside the inflow side of the wind deflector profile. The fastening device molded or mounted on the inner side of the profile leg is largely protected in the groove and is concealed or covered for viewing by a person sitting in the vehicle.

[0008] In a preferred embodiment, the fastening device has at least one fastening element for forming an undercut fit with the mounting part. The undercut fit can be configured, for example, as a stop fastening part or a clamping fastening part. The fastening element can be configured as a tooth or as a hook or the like. The fastening element for forming the undercut fit can also be configured in the form of a groove with a narrow slit opening and a receiving space enlarged behind the slit opening for the fastening section of the mounting part.

[0009] Practically, the profile legs on the wind deflector profile are arranged on the front side or wind-guiding side, so that they delimit the groove on the front side. However, the profile legs can also be arranged on the wind deflector profile at the rear side relative to the flow direction or at the underside of the wind deflector profile.

[0010] According to a preferred embodiment, it is provided that the wind deflector profile is designed as a hollow profile with profile legs molded thereon. Preferably, the wind deflector profile is produced using a gas internal pressure process or water jet technology. Such a hollow profile has a high strength in its one-piece configuration. No further reinforcement elements are required to be additionally mounted on the wind deflector profile. As a result, a largely closed and smooth surface of the wind deflector profile can be achieved.

[0011] It is particularly preferred that each of the two lateral window opening arms has a gate area. During injection molding, the plastic material is sprayed into the cavity or mold cavity of the injection mold via the gate area. The gate area is the position on the window opening arm at which, after the plastic gate has been detached from the window opening arm, a so-called gate mark is visible at the separation point. Practically, the wind deflector arch otherwise has no further gate area, in particular no further gate area on the wind deflector profile. Therefore, the visual appearance of the wind deflector arch swung outwards in the operating position is not hindered by such a gate mark for a person sitting in the vehicle and looking through the open roof onto the wind deflector arch, and the surface of the gate mark also becomes slightly dirty.

[0012] Practically, a plurality of webs are formed in the groove or on the groove bottom for fixing the mounting part to be mounted or already mounted on the fastening device. The webs protrude from the wall of the wind deflector profile into the groove, for example in the form of a nose or the like, and press the inserted mounting part into its fixed position. The fastening device preferably comprises a hook section, which forms an undercut fitting (Hinterschneidungseingriff) or an undercut fitting with a retaining nose of the mounting part for fixing the mounting part. However, the fastening device can also have other fastening elements such as clips or the like.

[0013] Preferably, hook sections and webs are formed alternately on the wind deflector profile. Preferably, when the mounting part is inserted or pressed into the groove, the locking nose presses the spring-elastically displaced profile leg outwards to temporarily widen the groove, so that the mounting part can assume its installed position with its locking nose. The spacing between the two webs and the hook section arranged between them can be set depending on the elastic deformation capacity of the profile leg. In the case of a greater elastic deformation capacity of the profile leg or a softer plastic material, the two webs can be arranged relatively close to the hook section.

[0014] The mounting part is, for example, a wind guide element or a wind screen, which has an elongated through or interrupted retaining element, which is inserted into the groove. Practically, the mounting part is a waterproof strip, which is molded on the wind guide element or the wind screen as a retaining element.

[0015] Practically, the mounting also presents a guard plate or partition for the slot. Thus, not only a flow-friendly configuration but also an improved visual appearance of the underside of the outwardly swung wind deflector bow is provided.

[0016] The tool according to the invention is characterized in that each ejector rests only in the groove of the wind deflector profile formed in the closed tool, in particular only on the groove base or additionally also on the groove side walls or groove inner walls. In any case, the contact point of the ejector on the wind deflector profile is located at a recessed and less visible position.

[0017] Practically, the ejector is placed in an ejector channel arranged perpendicularly to the separating plane of the two templates. The vertically guided ejector enables an optimized assignment of the ejector to the downwardly open groove of the wind deflector profile.

[0018] Practically, the tool is configured for carrying out a gas internal pressure process or a water jet technique during the injection molding of the wind deflector bow.

[0019] It is particularly preferred that the gate openings arranged in the tool for feeding the plastic molding material into the mold cavity open into the mold cavity at the underside of the lateral window arms of the wind deflector segment to be formed, and in particular the gate openings occupy only these positions and the region for molding the central wind deflector profile is free of such gate openings. All openings which open into the mold cavity, in particular directly, through which the plastic molding material is fed into the mold cavity are referred to as gate openings.

[0020] Practically, an injection needle is provided on each gate opening, through which both the plastic molding material can be injected as melt and the pressure medium can be injected. Therefore, only one injection needle is required on the gate opening for supplying melt and pressure medium, thus simplifying the tool.

[0021] Practically, some of the ejectors are resilient ejectors. Resilient ejectors are particularly suitable for use when hooking the fastening device from behind. When the tool is open, the ejector, which is hooked in the hook section on the wind deflector profile, can be swung outward from the wind deflector profile or the wind deflector bow.

[0022] Practically, a tool is provided and constructed for producing the wind deflector segment described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The invention is then explained in more detail with reference to the accompanying drawings, according to an embodiment of a wind deflector segment according to the invention and a tool for its production. It shows:

[0024] Figure 1 a section of the wind deflector arch in the region of its left half in the bottom view;

[0025] Figure 2 In the enlarged view in the lower view Figure 1 Corner sections of the wind deflector arches shown;

[0026] Figure 3 An injection molding tool with a wind deflector segment formed therein in a cross-sectional view;

[0027] Figure 4 Parallel to in cross-section view Figure 3 An illustration of an injection molding tool in staggered cross-section;

[0028] Figure 5 In accordance with Figure 4 An injection molding tool with a resilient ejector guided therein in a cross-sectional view;

[0029] Figure 6 In accordance with Figure 5 The lower tool half of the injection molding tool in a cross-sectional view with the elastic ejector in the outwardly moved position;

[0030] Figure 7 A bow-shaped portion of the windshield in cross-sectional view with a waterproof strip fixed thereto and holding the windshield net;

[0031] Figure 8 Parallel to in cross-section view Figure 7 The windshield arch and the waterproof strip with a stop nose in the staggered cross section of the illustration;

[0032] Fig. 9 A detail of the injection molding tool at the gate in the mold cavity during injection of the melt in a cross-sectional view;

[0033] Fig.10 In accordance with Fig. 9 A detail of an injection molding tool during injection of a molding medium in a cross-sectional view;

[0034] Fig.11 In accordance with Fig.13 The injection molding tool with the wind deflector segment formed therein in a cross-sectional view of a further section plane is shown;

[0035] Fig.12 In accordance with Fig.13 The injection molding tool with the wind deflector segment formed therein in a cross-sectional view of a further section plane is shown;

[0036] Fig.13 exist Fig.11 The injection molding tool with the wind deflector segment formed therein is shown in a further cross-sectional view in the sectional plane; and

[0037] Fig.14 Vehicle with open roof and wind deflector behind open windows in perspective view. DETAILED DESCRIPTION

[0038] For example, a car (see Fig.14 ) Such a vehicle 1 comprises a roof 2 having a roof opening 3 and a roof cover 4 (e.g. a sunroof, a lifting sunroof or an externally guided sunroof) which can be adjusted in a known manner between a closed position, which closes the roof opening 3, an open position, which opens the roof opening 3, and intermediate positions. A wind deflector device 6 (at the front edge 5 of the roof opening 3) is associated with the front edge 5 of the roof opening 3. Fig.11 ) comprises a wind deflector arch 7 having a central wind deflector profile 8 and lateral window opening arms 9. The window opening arms 9 are supported at their rear ends on a top frame 10 laterally delimiting the top opening 3 so as to be pivotable about a fixed or displaceable transverse pivot axis 11.

[0039] Windshield bow 7 (see Figure 7 and8 ) is injection molded from a plastic material. The wind deflector profile 8 is designed as a hollow profile, which has a profile wall 13 surrounding a hollow cavity 12. The wind deflector profile 8 has a front or wind-guided profile leg 14, which delimits a groove 15 formed on the wind deflector profile 8 at the front. The groove 15 is open downward and extends along the wind deflector profile 8. A fastening device 16 for a mounting part 17 is arranged or molded on the wind deflector profile 8 and in particular on the profile leg 14. Practically, the fastening device 16 is basically arranged or constructed on the inner side 18 of the profile leg 14 facing the groove 15.

[0040] The mounting part 17 is, for example, a waterproof strip 19 with a windshield 20. The waterproof strip 19 is, for example, molded or sprayed on the edge of the windshield 20.

[0041] The fastening device 16 has a plurality of fastening elements which are designed as undercuts or hook sections 21, which are arranged over the length of the wind deflector profile 8, are oriented toward the groove 15 and each provide an undercut fit 22 for fastening a locking nose 23 of the mounting part 17 on the hook section 21. The hook section 21 and the locking nose 23 are each configured so as to be associated with one another on the profile leg 14 or the mounting part 17 and extend as a short section or as a longer section in the longitudinal direction of the wind deflector profile 8 between webs 24 which are configured spaced apart from one another on the profile wall 13 and are configured opposite the profile leg 14. The webs 24 project into the groove 15 and each have a front pressing edge 25 which presses the mounting part 17 inserted into the groove 15 against the profile leg 14. Thus, each locking nose 23 which is located between two webs 24 is held in its locking position in the undercut fit 22. When the mounting part 17 is inserted or pressed into the groove 15, the locking noses 23 press the spring-elastically deflected profile legs 14 outwardly to temporarily expand the groove 15 so that the mounting part can assume its installed position with its locking noses 23. Between the locking noses 23, the mounting part 17 rests flatly on the associated contact surface 26 on the inner side 18 of the profile legs 14. The two connecting pieces 24 and the hook section 21 arranged between them (see Fig.13 ) is set according to the elastic deformation capacity of the profile leg 14. In the case where the elastic deformation capacity of the profile leg 14 is large or the plastic material is soft, the two connecting pieces 24 can be arranged relatively close to the hook section 21.

[0042] The mounting part 17 has a lower basic side 27 which covers the groove 15 and the web 24 and is particularly flush with the adjacent profile wall 13 surface on the lower side 28 of the wind deflector profile 8 and also with the profile leg 14 surface. The lower side 28 of the wind deflector profile 8 with the mounting part 17 or the flashing strip 19 fastened thereto thus has a largely uniform visual appearance, in particular for a person sitting in the vehicle and looking through the open roof at the wind deflector bow 7. The largely smooth design of the lower side 28 of the wind deflector bow 7, at least in the section of the wind deflector profile 8, is less prone to contamination and disturbing noise generation during driving with the windows open.

[0043] This configuration of the central wind deflector profile 8 can also extend into the practically rounded corner region of the wind deflector arch 7 at the transition to the corresponding window arm 9 and, if necessary, also into the window arm 9 (see Figure 2 ).

[0044] Each opening arm 9 has a gate region 29 on its underside, at which the plastic material is injected into the cavity or mold cavity of the injection mold during injection molding. The wind deflector arch 7 otherwise has no further gate region, in particular no further gate region on the wind deflector profile 8. The gate region 29 is the location on the opening arm 9 at which, after the plastic gate has been separated from the opening arm 9, a so-called gate mark is visible at the separation point.

[0045] The injection molding tool 30 for producing such a wind deflector segment 7 has a first mold plate 31 with a mold cavity 32 and a second mold plate 33 with a mold cavity 34. The two mold cavities 32 and 34 form a mold cavity 35 for forming the wind deflector segment 7. In the figure, the first mold plate 31 at the bottom has a plurality of ejector channels 36 ( Figure 3 and 4 The sectional views of 31 and 33 respectively show an ejector channel 36 with an ejector 37 or 37 ′, through which the ejector 37 respectively extends. The ejector channel 36 preferably extends perpendicularly to the partition plane 38 between the two templates 31 and 33.

[0046] exist Figure 3The ejector 37 shown in the drawing is designed and positioned such that, when the tool 30 is closed and the wind deflector profile 8 is formed in the mold cavity 35, its upper end side 39 rests against the groove bottom 40 of the groove 15 and its inclined end side 41 rests against the inclined flat inner side 18 of the profile leg 14 of the wind deflector profile 8. In this case, the ejector 37 only partially fills the groove 15 over the width of the groove, while the other part of the groove 15 in the region of the ejector 37 is formed by a mold insert 42 of the lower mold plate 31. The mold insert 42 contains a molded web 43 that forms the groove 15 and protrudes into the mold cavity 35 and a groove-shaped recess 44 for the ejector 37 in the extension of the ejector channel 36. When the tool 30 is closed, the upper end side 39 of the ejector 37 is arranged flush with the molded web end face 50 that forms the groove bottom 40 of the groove 15. In principle, the shaped web 43 shapes the groove 15 and extends over its length or over the length of the wind deflector profile 8 .

[0047] When the wind deflector profile 8 is demolded, the ejector 37 moves linearly out of the lower first mold plate 31 when or after the upper second mold plate 33 is lifted and presses out the wind deflector profile 8, which is also easily detached from the ejector 37.

[0048] exist Figures 4 to 6 The ejector 37' shown in FIG. Figure 3 The ejector 37 shown in the figure is modified as follows: it is an elastic ejector 37' and is arranged in the region of the hook section 21 of the profile leg 14 when the tool 30 is closed and the wind deflector profile 8 is formed in the mold cavity 35. The end side 41 of the ejector 37' is designed as a negative mold for the hook section 21. When the wind deflector profile 8 is demolded, the elastically prestressed ejector 37' moves out of the lower mold plate 31 in an arc shape and swings outward laterally away from the hook section 21 on the profile leg 14 before it is detached from the wind deflector profile 8.

[0049] Preferably, the ejectors 37 and the elastic ejectors 37' are arranged in the tool 30 alternately over the length of the wind deflector profile 8 and are assigned to hook sections 21 and webs 24 that are likewise alternating (see Fig.13 ).

[0050] Fig.11 and 12 A further section through the injection molding tool 30 with the wind deflector segment 8 formed therein is shown. Fig.13 According to the approximately horizontal cross section (cross section direction) of the second forming tool 31 above the injection molding tool 30 Figure 4 and 11 ) Figure 3 , 4, 11 and 12 section planes.

[0051] The molded insert 42 is inserted and fastened as a separate part on the first lower mold plate 31. Alternatively, the first lower mold plate 31 itself can also be configured in a configuration that determines the contour of the mold cavity.

[0052] The injection molding tool 30 is provided for carrying out a gas internal pressure process (GID) or a water jet process and has a casting bushing 45 with a gate opening 51 (see Fig. 9 and 10 ), when the tool 30 is closed, the injection needle 46 is connected to the casting bushing and the plastic molding material is firstly injected as a melt 47 into the runner or directly into the mold cavity 35 by the casting bushing (see Fig. 9 ). Subsequently, a pressure medium 48 (e.g., gas or water) is injected via the injection needle 46. In this way, a cavity 12 is formed in the windshield profile 8 of the windshield arch 7. Each casting bushing 45 is arranged on the injection molding tool 30 in the region of each of the two window arms 9. The melt 47 injected laterally into the mold cavity 35 flows through the elongated mold cavity 35 corresponding to the shape of the windshield profile 8. The ejectors 37, 37' extending into the mold cavity 35 only form a small flow resistance due to their slender configuration at the end. As a result, a high quality of the injection molded part is achieved by the largely undisturbed inflow of the plastic molding material.

[0053] The wind deflector arch 7 produced by the gas internal pressure process (GID) or the water jet process has a high rigidity and torsional strength. No reinforcements are required to be additionally molded or installed. The window arm 9 can be located outside the area that is formed by the gas internal pressure process or the water jet process. The window arm 9 can optionally be configured with a reinforcement 49. If necessary, the underside of the window arm 9 can be covered with a partition, which also covers the gate area 29.

[0054] The mounting part 17 is mounted simply by being inserted into the groove 15 and snapped onto the hook section 21. No screwing or other fastening processes are required.

[0055] The individual features disclosed in the description and with the aid of the exemplary embodiments and the figures can be combined with the respective inventive subject matter in its general form in any technically practical arrangement and embodiment.

[0056] Reference numerals list

[0057] 1 Vehicle 27 Basic Side

[0058] 2 Roof 28 Lower side

[0059] 3 Top opening 29 Gate area

[0060] 4 Top cover 30 Injection tool

[0061] 5 Front edge 31 First template

[0062] 6 Wind deflector device 32 cavity

[0063] 7 Windshield arch 33 Second template

[0064] 8 Wind deflector profile 34 cavity

[0065] 9 Window arm 35 Cavity

[0066] 10 Top frame 36 Ejector channel

[0067] 11 Cross-section Swing axis 37 Ejector

[0068] 12 Cavity 37' Ejector

[0069] 13 Profile wall 38 Separation plane

[0070] 14 Profile leg 39 end side

[0071] 15 slots 40 slot bottom

[0072] 16 Fastening device 41 End side

[0073] 17 Mounting 42 Formed Insert

[0074] 18 Inner side 43 Formed connecting piece

[0075] 19 Waterproof strip 44 Leave blank

[0076] 20 Windscreen 45 Casting Bushing

[0077] 21 Hook section 46 Injection needle

[0078] 22 undercut fitting portion 47 molten metal

[0079] 23 Stop nose 48 Pressure medium

[0080] 24 Connecting piece 49 Reinforcement part

[0081] 25 Pressing edge 50 Forming connecting piece end face

[0082] 26 Abutment surface 51 Gate opening

Claims

1. A tool (30) for producing a wind deflector bow (7) of a wind deflector arrangement (6) of an openable vehicle roof (2) by means of plastic injection molding or plastic foaming in a mold cavity (35) between two mold plates (31, 33), in, At least one ejector channel (36) is arranged in a mold plate (31), the ejector channel having an ejector (37, 37') received or accommodated therein, It is characterized in that The mold cavity (35) is configured to shape at least one central windshield profile (8) of the windshield arch (7), and The ejector (37, 37') - when the tool (30) is closed, it is received in a recess (44) of a shaped web (43) of a template (31) which receives the ejector (37, 37'), and The end face (39) of the ejector is arranged flush with the end face (50) of a shaped web which forms the groove bottom (40) of the groove (15) to be formed in the wind deflector profile (8).

2. The tool according to claim 1, It is characterized in that The ejectors (37, 37') are arranged in an ejector channel (36) which is arranged perpendicular to a dividing plane (38) between the two mold plates (31, 33).

3. The tool according to claim 1 or 2, It is characterized in that The wind deflector profile (8) is constructed as a hollow profile by means of a gas internal pressure process or a water jet technology.

4. The tool according to claim 1 or 2, It is characterized in that A gate opening (51) arranged in the tool (30) opens into the mold cavity (35) at the bottom side of the lateral window arms (9) of the wind deflector arch (7).

5. The tool according to claim 4, It is characterized in that An injection needle (46) is arranged on each gate opening (51), through which both plastic molding material as melt (47) and pressure medium (48) can be injected.

6. The tool according to claim 1 or 2, It is characterized in that The ejector is a resilient ejector (37').

7. An openable vehicle roof (2) with a wind deflector device (6), comprising a wind deflector bow (7) which is produced by means of a tool according to any one of claims 1 to 6 and is produced from a plastic material and has a central wind deflector profile (8) with lateral opening arms (9), It is characterized in that At least the wind deflector profile (8) has a profile leg (14) which delimits a groove (15) which is formed on the wind deflector profile (8) and is open downwards and extends in the direction of travel, and The profile leg (14) has a molded or installed fastening device (16) for a mounting part (17) on its inner side (18) facing the groove (15), wherein a plurality of connecting pieces (24) are constructed in the groove (15) or at the groove bottom (40) for fixing the mounting part (17) to be installed or already installed on the fastening device (16), the fastening device (16) or the fastening element of the fastening device (16) has a hook section (21), the retaining nose (23) of the mounting part (17) and the hook section form a side recessed fitting portion (22) for fixing the mounting part (17), and the hook sections (21) and the connecting pieces (24) are alternately constructed on the wind deflector profile (8).

8. The vehicle roof according to claim 7, It is characterized in that The fastening device (16) has at least one fastening element (21) for forming an undercut fitting portion (22) with the mounting member (17).

9. The vehicle roof according to claim 7 or 8, It is characterized in that The profile leg (14) is arranged on the front side or wind deflection side on the wind deflector profile (8) and delimits the groove (15) on the front side.

10. The vehicle roof according to claim 7 or 8, It is characterized in that The wind deflector profile (8) is designed as a hollow profile having profile legs (14) integrally formed thereon.

11. The vehicle roof according to claim 7 or 8, It is characterized in that Each of the two lateral window opening arms (9) has a gate region (29).

12. The vehicle roof according to claim 7 or 8, It is characterized in that The wind deflector profile (8) is designed without a gate region.

13. The vehicle roof according to claim 7 or 8, It is characterized in that The mounting member (17) comprises a wind guide element or a wind shielding net (20) or a waterproof strip (19), and the waterproof strip supports the wind guide element or the wind shielding net.

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