Interior ventilation device for a motor vehicle

Description

[0001] The invention relates to a device for interior ventilation, preferably a roof hatch device, for a motor vehicle, preferably a commercial vehicle.

[0002] Most truck cabs have openable roof hatches for ventilation. If these hatches are transparent, it can be useful to shade the transparent area. This protects the driver and passengers from glare and helps prevent the cab from overheating. Additionally, it may be necessary to prevent insects from entering when the roof hatch is open. Furthermore, interior lighting can be installed in the cab's headliner to illuminate the cab.

[0003] German patent DE 10 2007 025 145 A1 discloses a multi-section panoramic roof for trucks that provides improved lighting conditions in the cab and a greater sense of space for the driver and passengers. The panoramic roof can be shaded from sunlight with a blackout blind. The opening skylight of the panoramic roof is additionally protected by a fly screen to prevent insects from entering.

[0004] WO 2013 / 171038 A1 discloses a covering device comprising a covering assembly movably mounted for displacement between a spread position, in which it extends relative to a zone to be covered, and a storage position. The covering assembly comprises two superimposed pieces of a web, the assembly allowing relative translation of the pieces in a spreading direction of the covering assembly to adjust the transparency of the covering assembly. A first edge of the first piece is attached to a first winding device, and a first edge of the second piece is attached on the same side as the first edge of the first piece to a suspension device independent of the first winding device.

[0005] US Patent 4,925,238 A discloses a roller blind for use in vehicles with a T-shaped roof featuring two removable sections separated by a central T-bar. The blind can be factory-installed in the vehicle or retrofitted by a consumer. The blind comprises an elongated cylindrical housing that contains a spring-loaded sunshade roller. A pair of guide rails extends from opposite ends of the cylindrical housing and is provided with spring-loaded detents for engagement with the mounting holes for the removable roof sections. A clamping assembly extends from a rear portion of the cylindrical housing to engage a channel formed in the T-beam of the vehicle roof. A locking mechanism allows the blind to be secured in the closed position.

[0006] JP 2008-137500 A discloses a sunshade structure of the vehicle which is designed such that a first shading element and a second shading element are provided in an overlapping state to be pulled out in the same direction, and a first winding shaft and a second winding shaft are provided while being offset in the direction of overlapping of the first and second shading elements and also offset in the direction of pulling out the first and second shading elements.

[0007] German patent application DE 10 2011 113 711 A1 discloses a device for illuminating the interior of a motor vehicle, particularly in the area of ​​the headliner. The device comprises a light source which is received in a receiving element. A diffuser is arranged in front of the light source facing the interior.

[0008] The invention is based on the objective of creating an alternative and / or improved device for interior ventilation, particularly for a motor vehicle.

[0009] The problem is solved by the features of independent claim 1. Advantageous further developments are specified in the dependent claims and the description.

[0010] The invention provides a device for interior ventilation, preferably a roof vent device, for a motor vehicle, preferably a commercial vehicle (e.g., a truck or bus). The device has a (e.g., rectangular) frame with a (e.g., central) ventilation opening (or supply and exhaust opening). The device has a first rotating element (e.g., a winding roller) for rolling up and down a first roller blind, which is attached to the first rotating element, to selectively open or cover the ventilation opening. The device has a second rotating element (e.g., a winding roller) for rolling up and down a second roller blind, which is attached to the second rotating element, to selectively open or cover the ventilation opening. The first rotating element and the second rotating element are on a common (same) side with respect to the ventilation opening and (e.g.,in an installation situation) arranged at least partially overlapping with each other with respect to an (imaginary) vertical axis.

[0011] The device offers the advantage of optimally utilizing the limited installation space available for the rotating elements. Since the rotating elements are arranged side-by-side rather than one above the other, the device's downward profile is minimized. This ensures that the headroom in the cab of a truck, for example, is not restricted. Additionally, the rotating elements minimize any obstruction of the transparent area of ​​the roof hatch.

[0012] According to the invention, the first rotating element and the second rotating element are arranged essentially at the same height. It is possible for the first rotating element and the second rotating element to be arranged side by side with respect to an (imaginary) horizontal axis. It is also possible for the first roller blind to be unrolled above the second roller blind. The device can thus reduce the required installation space in the vertical direction as much as possible without having to forgo a roller blind.

[0013] According to the invention, the device has a spacer that is arranged above, preferably directly above, the second rotating element, for guiding the first roller blind at a distance from the second roller blind and / or the second rotating element. The spacer prevents the roller blinds from rubbing or grinding against each other. For example, it prevents a fly screen roller blind positioned at the top from rubbing against a suitably coated lower shading roller blind. This prevents damage from abrasion.

[0014] In one embodiment of the invention, the spacer is web-, rod-, or beam-shaped, namely parallel in one direction to the first rotating element and / or the second rotating element. This allows the spacer to ensure spacing between the roller blinds, for example, across the entire width of the blinds.

[0015] In another embodiment of the invention, the spacer is ramp-shaped, preferably extending in a direction away from the first rotating element. This allows the first roller blind to be guided, for example, to a lateral guide for the first roller blind, which is arranged higher than the first rotating element.

[0016] In another embodiment, the spacer is designed to guide the first roller blind from below, preferably by means of a sliding surface on its upper side. This prevents damage to the first roller blind as it slides along the spacer.

[0017] In one embodiment, the device features interior lighting, preferably arranged on the opposite side of the ventilation opening from the first and second rotating elements. Advantageously, the device can also include a splash guard to keep liquid entering the device from above (e.g., rainwater through an open hatch) away from the interior lighting. For example, the splash guard can be positioned above and at a distance from the interior lighting. The splash guard can protect the interior lighting, which is mounted in the roof hatch trim, from any water that may enter when the roof hatch is open.

[0018] In a further development, the device has a cover (e.g., a trim piece) that is attached to the frame from below. The cover may have a recess (e.g., a mounting opening) in which the interior lighting is located. For example, the cover may also have a projection (e.g., ridge-shaped) surrounding the recess to keep liquid (e.g., rainwater) entering the device from above away from the interior lighting.

[0019] In another embodiment, the splash guard element is shaped, preferably sloping (e.g., sloping away from the ventilation opening), such that any liquid (e.g., rainwater) located on the upper surface of the splash guard element is directed to an area outside the surrounding projection. This effectively prevents the liquid from reaching the interior lighting.

[0020] In another embodiment, the spacer is integrally formed as a single piece with the frame, preferably by (e.g., plastic) injection molding. In another embodiment, the splash guard can also be integrally formed as a single piece with the frame, preferably by (e.g., plastic) injection molding. This eliminates the need for additional components for these functions. Furthermore, the spacer and / or the splash guard can increase the rigidity of the frame.

[0021] In one embodiment, the frame has a leg with a handle opening for handling the frame during assembly. Preferably, the handle opening can be located on the opposite side of the ventilation opening from the first and second rotating elements. This allows the frame to be gripped precisely during transport / handling without risking damage to the kinematics, i.e., the rotating elements.

[0022] In another embodiment, the device also features a (e.g., manually or automatically) movable (e.g., transparent) hatch, preferably a roof hatch.

[0023] In a further development, the device includes a drive unit for opening and / or closing the hatch. Preferably, the drive unit can be at least partially arranged in the handle opening. This way, no installation space is wasted by the handle opening for transport, etc. Instead, the handle opening can also serve as a functionally integrated receiving space for the drive unit in the assembled state.

[0024] The frame, together with the first and second rotating elements mounted on it (along with the first and second roller blind), can conveniently form a pre-assembly unit.

[0025] In one embodiment, the frame has a frame leg, preferably transverse to the first and second rotating elements. Preferably, a control unit for a drive unit of a hatch of the device is attached to the frame leg. The frame, together with the control unit mounted on it, can thus form a pre-assembly unit that is as comprehensive as possible.

[0026] Preferably, the term "control unit" can refer to electronics (e.g., with microprocessor(s) and data storage) and / or mechanical control systems that, depending on their design, can perform control and / or regulation tasks. Although the term "control" is used here, it can also appropriately encompass "regulation" or "control with feedback."

[0027] In another embodiment, the second roller blind is attached to the first roller blind, preferably for joint rolling up and / or unrolling and / or for holding the second roller blind in a rolled-up state.

[0028] In a further development, the second roller blind has a handle element, preferably a handle strip, which is attached to a handle element, preferably a handle strip, of the first roller blind.

[0029] In one embodiment, the first roller blind and / or the second roller blind is an insect screen roller blind, preferably an insect screen roller blind, and / or a blackout roller blind or shading roller blind.

[0030] In another embodiment, the first rotating element and the second rotating element are arranged parallel to each other.

[0031] In another embodiment, the first rotating element and / or the second rotating element is rotatably mounted on the frame.

[0032] The frame may have two opposing first guides, preferably guide rails or guide grooves, for guiding the first roller blind. Alternatively or additionally, the frame may have two opposing second guides, preferably guide rails or guide grooves, for guiding the second roller blind. Preferably, the two first guides may be arranged above the two second guides.

[0033] The invention also relates to a motor vehicle, preferably a commercial vehicle (e.g., a truck or bus). The motor vehicle has a device as disclosed herein, which is preferably arranged such that the first and second rotating elements are located in front of the ventilation opening and / or on a side of the device facing the forward direction of travel of the motor vehicle, relative to the direction of travel of the motor vehicle.

[0034] Preferably, the device is a truck roof hatch device for a truck cab.

[0035] It is also possible to use the device as disclosed herein for passenger cars, off-road vehicles or caravans.

[0036] The preferred embodiments and features of the invention described above can be combined in any way desired. Further details and advantages of the invention are described below with reference to the accompanying drawings. These show: Figure 1: A perspective view of the roof area of ​​a commercial vehicle; Figure 2: A top view of the roof area of Figure 1 Figure 3 shows a partial sectional view along a line AA in Figure 2 Figure 4 shows a partial sectional view along a line BB in Figure 2 Figure 5 shows a sectional view in a plane parallel to line AA. Figure 2 or parallel to the section view of Figure 3Figure 6 shows a perspective view from below of a part of an interior ventilation device for a motor vehicle according to an embodiment of the present disclosure; and Figure 7 shows a perspective view from above of the exemplary part of the interior ventilation device.

[0037] The embodiments shown in the figures are at least partially identical, so that similar or identical parts are provided with the same reference numerals and, to avoid repetition, reference is also made to the description of the other embodiments or figures for their explanation.

[0038] The Figures 1 and 2The figures show a roof area 10 of a motor vehicle. The forward direction of travel of the motor vehicle is indicated by an arrow V. The roof area 10 has a device 12 for interior ventilation (supply and exhaust). Specifically, in the illustrated embodiment, the roof area 10 is a roof area of ​​a truck driver's cab. The device 12 thus serves for roof-side cab ventilation. The device 12 is designed as a roof hatch. It is possible to use the device 12 in a different environment, for example, in a different vehicle, such as a passenger car or a camper van.

[0039] The Figures 3 to 7 depict device 12 in greater detail.

[0040] The device 12 is mounted on an opening in the roof area 10. Specifically, the device 12 comprises a first frame 14 and a second frame 16. The first frame 14 is sealed to the upper surface of the roof area 10. The second frame 16 is attached to the underside of the roof area 10. Advantageously, the second frame 16 is arranged as an interior component on the headliner of a driver's cab. The first and second frames 14 and 16 can, for example, be screwed together. The first and / or second frames 14 and 16 can be substantially rectangular. The first and / or second frames 14 and 16 can advantageously be made of plastic, preferably manufactured by injection molding.

[0041] A movable, preferably pivotable and / or tiltable, (roof) hatch 18 is positioned in a central opening of the first frame 14. Preferably, the hatch 18 can be opened and closed automatically. For automatic movement of the hatch 18, an electric drive unit 20 (see [reference]) can be used. Figure 3 ) included. The electric drive unit 20 can be connected to the hatch 18 in a driving manner, for example via a pivot lever or the like.

[0042] The drive unit 20 can be controlled by a control unit 22 (see Figures 6 and 7 The control unit 22 can also be included in the device 12. Advantageously, the control unit 22 is attached to the second frame 16, so that the second frame 16, with the components mounted on it, can form the most comprehensive pre-assembly unit possible. However, it is also possible for the hatch 18 to be opened and closed manually.

[0043] The device 12 comprises a first roller blind assembly 24 and a second roller blind assembly 26. The first roller blind assembly 24 comprises a first rotating element 28 and a first roller blind 30. The second roller blind assembly 26 comprises a second rotating element 32 and a second roller blind 34. The first rotating element 28 and the second rotating element 32 are each rod-shaped. The first rotating element 28 and the second rotating element 32 are each rotatably mounted on the second frame 16. The rotating elements 28 and 32 are advantageously each designed as a winding roller. The roller blinds 30 and 34 are advantageously designed as rollable, e.g., rectangular, fabrics, woven materials, films, or the like. The rotating elements 28 and 32 can be covered from below by a cover attached to the second frame 16.

[0044] The first roller blind 30 is attached, preferably fixed, to the first rotating element 28 at one end. At the opposite end, the first roller blind 30 has a handle 36 in the form of a grip strip. The first roller blind 30 can be rolled up onto and unrolled from the first rotating element 28. Alternatively, the first roller blind 30 can be grasped by the handle 36 and manually unrolled from the first rotating element 28. The handle 36 can be detachably held on a bracket 38 of the second frame 16 to hold the first roller blind 30 in the unrolled position. For example, the handle 36 can be hooked into the bracket 38.

[0045] The first rotating element 28 can be pre-tensioned in a direction of rotation for rolling up the first roller blind 30, preferably spring-loaded. The first roller blind 30 can advantageously be an insect screen roller blind. In the unrolled state, the insect screen roller blind can prevent insects from entering the interior of the motor vehicle through the open hatch 18.

[0046] The second roller blind 34 is attached, preferably fixed, to the second rotating element 32 at one end. At the opposite end, the second roller blind 34 has a handle 40 in the form of a grip strip. The second roller blind 34 can be rolled up onto and unrolled from the second rotating element 32. Alternatively, the second roller blind 34 can be grasped by the handle 40 and manually unrolled from the second rotating element 32. The handle 40 can be detachably held on a bracket 42 of the first roller blind 30, preferably the handle 36 of the first roller blind 30. This allows the second roller blind 34 to be held in the unrolled position or to be unrolled or rolled up together with the first roller blind 30. For example, the handle 40 can be hooked into the bracket 42.

[0047] The second rotating element 32 can be pre-tensioned in a direction of rotation for rolling up the second roller blind 34, preferably spring-loaded. The second roller blind 34 can advantageously be a blackout or shading roller blind. When unrolled, the second roller blind can prevent sunlight from entering the interior of the vehicle through the transparent hatch 18.

[0048] As described, the blinds 30 and 34 can be opened manually. However, it is also possible for the first blind 30 and / or the second blind 34 to be automatically raised and lowered by means of a respective drive unit (not shown). The drive unit(s) can, for example, be connected to the first rotating element 28 and / or the second rotating element 32.

[0049] The second frame 16 has a ventilation opening 44. The ventilation opening 36 is located below the hatch 18, which can be opened. When rolled up, the first roller blind 30 and the second roller blind 34 can each uncover the ventilation opening 44. When unrolled, the first roller blind 30 and the second roller blind 34 can each cover the ventilation opening 44. Figures 3 to 7 The roller blinds 30 and 34 are shown in their unrolled state.

[0050] For example, in Figure 4 As shown, the roller blinds 30, 34 can be guided on both sides in lateral guides 46, 48 when rolling up and down. The first guide 46 for the first roller blind 30 is located directly above the second guide 48 for the second roller blind 34. The guides 46, 48 can be integrally formed with the second frame 16. The guides 46, 48 can, for example, be designed as guide grooves or guide rails.

[0051] The rotating elements 28, 32 are arranged side by side at the same height on the same side with respect to the ventilation opening 44. In the forward direction V, the rotating elements 28, 32 are arranged one behind the other on the side of the ventilation opening 44 or the second frame 16 facing the forward direction V. This arrangement of the rotating elements 28, 32 allows for a low-profile device 12. The passenger compartment can be restricted as little as possible in the upper area by the device 12. This can advantageously have a maximum possible seating or standing height in the vehicle.

[0052] As in the Figures 3 and 5As shown, the device 12 can include a spacer 50. The spacer 50 separates the first roller blind 30 from the second roller blind 34 in the area of ​​the second rotating element 32. The spacer 50 is arranged above the second rotating element 32. The spacer 50 is arranged parallel to the first rotating element 28 and the second rotating element 32. The spacer 50 is arranged on the same side with respect to the ventilation opening 44 as the rotating elements 28 and 32. The spacer 50 can, for example, be beam-shaped, rod-shaped, web-shaped, or strip-shaped and extend along the entire width of the first roller blind 30.

[0053] The spacer 50 is designed as a guide or sliding element. The spacer 50 guides and supports the first roller blind 30 from below. The first roller blind 30 can slide over a suitably smooth upper surface of the spacer 50. The spacer 50 prevents the first roller blind 30 from rubbing or scraping against the second roller blind 34. This protects, for example, the roller blind fabric or coating from damage. The spacer 50 can be ramped in one direction away from the first rotating element 28. This allows the first roller blind 30 to be guided to the guides 46, which are arranged higher than the first rotating element 28. The spacer 50 can be integrally formed with the second frame 16, preferably by injection molding.

[0054] As in Figure 5As shown, the device 12 can include interior lighting 52. The interior lighting 52 can be used to illuminate the interior of the motor vehicle. The interior lighting 52 is mounted on a mounting opening or recess in a cover (trim) 54. The cover 54 is attached to the second frame 16 from below.

[0055] Spacing from the mounting opening, the cover 54 can have an upwardly directed projection 56 on its inner side, surrounding the mounting opening. Above the interior lighting 52, a splash guard element 58 can be installed (see also Figures 6 and 7The splash guard element 58 is arranged and shaped to prevent liquid, such as rainwater, entering through the open hatch 18 and reaching the interior lighting 52. Liquid can drip onto the top surface of the splash guard element 58. This top surface slopes downwards and directs the liquid to an area outside the surrounding projection 56. In this way, the electrical components of the interior lighting 52 are protected from the liquid. The splash guard element 58 can be integrally formed with the second frame 16, preferably by injection molding. The splash guard element 58 can thus be designed as a frame extension, which also increases the rigidity of the second frame 16.

[0056] As in the Figures 6 and 7As shown, the second frame 16 can have a handle opening 60. The handle opening 60 allows the second frame 16 to be handled without damage during transport and assembly. The handle opening 60 can be located in a frame leg of the second frame 16 on a side of the second frame 16 opposite the rotating elements 28, 32. The handle opening 60 can be located centrally in the frame leg. The handle opening 60 can be located centrally between two splash guard elements 58, each of which covers an interior light 52. In the assembled state, the handle opening 60 can serve to create installation space for the drive unit 20, which can be located at least partially within the handle opening 60.

[0057] The invention is not limited to the preferred embodiments described above. Rather, a multitude of variants and modifications are possible, which also make use of the inventive concept and therefore fall within the scope of protection. In particular, the invention also claims protection for the subject matter and the features of the dependent claims independently of the referenced claims. In particular, the individual features of independent claim 1 are each disclosed independently of one another. In addition, the features of the dependent claims are also disclosed independently of all features of independent claim 1 and, for example, independently of the features relating to the presence and / or configuration of the frame, the first rotating element, and / or the second rotating element of independent claim 1. Reference symbol list

[0058] 10 Roof area 12 Interior ventilation device 14 First frame 16 Second frame 18 Hatch 20 Drive unit 22 Control unit 24 First roller blind mechanism 26 Second roller blind mechanism 28 First pivot element 30 First roller blind 32 Second pivot element 34 Second roller blind 36 Handle element 38 Bracket 40 Handle element 42 Bracket 44 Ventilation opening 46 First guide 48 Second guide 50 Spacer 52 Interior lighting 54 Cover 56 Projection 58 Splash guard element 60 Handle opening

Claims

1. A device (12), preferably a roof hatch device, for ventilating the interior of a motor vehicle, preferably a utility vehicle, said device comprising: a frame (16) with a ventilation opening (44); a first rotating element (28) for rolling up and unrolling a first roller blind (30) attached to the first rotating element (28) for selectively uncovering or covering the ventilation opening (44); a second rotating element (32) for rolling up and unrolling a second roller blind (34) attached to the second rotating element (32) for selectively uncovering or covering the ventilation opening (44), wherein the first rotating element (28) and the second rotating element (32) are arranged at least partially overlappingly on a common side in relation to the ventilation opening (44) and in relation to a vertical axis; wherein the first rotating element (28) and the second rotating element (32) are arranged substantially at the same height; a spacer (50) arranged above, preferably directly above, the second rotating element (32) for guiding the first roller blind (30) spaced from the second roller blind (34) and / or the second rotating element (32), characterized in that the spacer (50) is rib-, rod-, or beam-shaped in a direction parallel to the first rotating element (28) and / or the second rotating element (32), and / or the spacer (50) is ramp-shaped.

2. The device (12) as claimed in claim 1, wherein: the first rotating element (28) and the second rotating element (32) are arranged next to each other with respect to a horizontal axis; and / or the first roller blind (30) can be unrolled above the second roller blind (34).

3. The device (12) as claimed in one of the preceding claims, wherein: the spacer (50) is ramp-shaped, namely in a direction away from the first rotating element (28); and / or the spacer (50) is designed to guide the first roller blind (30) from below, preferably by means of a top sliding surface; and / or the spacer (50) is integrally formed with the frame (16), preferably by means of injection molding.

4. The device (12) as claimed in one of the preceding claims, further comprising: an interior lighting means (52) preferably arranged on an opposite side of the ventilation opening (44) in relation to the first and second rotating elements (28, 32); and a splash guard element (58) for keeping liquid which enters the device (12) from above away from the interior lighting means (52), wherein the splash guard element (58) is spaced apart from the interior lighting means (52) above the interior lighting means (52).

5. The device (12) as claimed in claim 4, further comprising: a cover (54) that is attached to the frame (16) from below, wherein the cover (54) has a recess, in which the interior lighting means (52) is arranged, and on the inner side has a projection (56) surrounding the recess for keeping liquid which enters the device (12) from above away from the interior lighting means (52).

6. The device (12) as claimed in claim 5, wherein: the splash guard element (58) is shaped, preferably in a sloping manner, such that liquid located on an upper side of the splash guard element (58) is directed into a region outside the circumferential projection (56).

7. The device (12) as claimed in one of claims 4 to 7, wherein: the splash guard element (58) is integrally formed with the frame (16), preferably by means of injection molding.

8. The device (12) as claimed in one of the preceding claims, wherein: the frame (16) comprises a frame leg having a handle opening (60) for handling the frame (16) during an assembly of the frame (16), wherein preferably: the handle opening (60) can be arranged on an opposite side of the ventilation opening (44) in relation to the first and second rotating elements (28, 32).

9. The device (12) as claimed in one of the preceding claims, further comprising: a movable hatch (18), preferably a roof hatch; and a drive unit (20) for opening and / or closing the hatch (18), wherein the drive unit (20) is arranged at least partially in the handle opening (60).

10. The device (12) as claimed in one of the preceding claims, wherein: the frame (16) comprises a frame leg, preferably transverse to the first and second rotating elements (28, 32), on which frame leg there is attached a control unit (22) for a drive unit (20) of a hatch (18) of the device (12).

11. The device (12) as claimed in one of the preceding claims, wherein: the second roller blind (34) is holdable on the first roller blind (30), preferably for rolling up and / or unrolling together and / or for holding the second roller blind (34) in a rolled-out state.

12. The device as claimed in claim 11, wherein: the second roller blind (34) has a handle element (40), preferably a handle strip, which can be held on a handle element (36), preferably a handle strip, of the first roller blind (30).

13. The device (12) as claimed in one of the preceding claims, wherein: the first roller blind (30) and / or the second roller blind (34) is an insect guard roller blind, preferably a mesh insect guard roller blind, and / or a blackout roller blind or shade roller blind; and / or the first rotating element (28) and the second rotating element (32) are arranged parallel to each other; and / or the first rotating element (28) and / or the second rotating element (32) is rotatably mounted on the frame (16).

14. A motor vehicle, preferably utility vehicle, comprising: a device (12) as claimed in one of the preceding claims, which is preferably arranged such that the first and second rotating elements (28, 32) are arranged in front of the ventilation opening (44) in relation to a forward driving direction (V) of the motor vehicle and / or on a side of the device (12) facing in the forward driving direction (V) of the motor vehicle.