DE102011013320A1 - Motor vehicle e.g. passenger car has sun visor elements that are arranged in primary vision region and secondary vision region so as to darken primary vision region and secondary vision region - Google Patents

Abstract

The vehicle (1a,1b) has primary vision region (A) that is provided in the front of motor vehicle portion. The secondary visual region (B) is provided behind the primary vision region. The sun visor elements (3) are arranged in the primary vision region and secondary vision region so as to darken primary vision region and secondary vision region. The opaque or light-weakening component is formed in secondary visual region. The light transmittances of the visual regions are changed by adjusting element.

Description

TECHNICAL AREA

The invention relates to a motor vehicle, comprising a first glazed viewing area, a second glazed viewing area arranged in the region of the roof of the motor vehicle above the first viewing area or behind the first viewing area, and a glare shield, which is adapted to the first viewing area in a first state darken.

STATE OF THE ART

Virtually every motor vehicle available today has a sun visor, which can usually be folded and / or pushed from a rear to a front or even lateral position to protect the driver in the morning or evening from the low sun. Examples are about in the DE 35 12 807 A1 , of the DE 199 22 973 A1 , of the DE 43 01 931 A1 , of the DE 272 44 14 A1 , of the DE 100 31 201 A1 or in the DE 32 27 719 A1 disclosed. In addition, systems are known in which the light transmittance of a glass can be changed by applying an electrical voltage (electrochromic glass). An example of this is in the DE 41 06 019 A1 disclosed. In addition, sunroofs or panoramic glazing in motor vehicles are well known. Examples of this are in the EP 1 859 975 A2 , of the DE 10 2006 011 417 A1 or the DE 102 45 245 A1 disclosed.

A disadvantage of the known state of the art is that the sun visor or an electrochromic glazing offers protection against the low sun, on the other hand, but also the view on objects arranged above the road, such as traffic lights, traffic signs and the like prevented or at least significantly more difficult. At the traffic light, therefore, the sun visor must be folded up frequently in order to be able to clearly perceive the signals of the traffic light. Then the sun visor must be folded down again, so that the vehicle can be steered safely. Especially in the city, where many traffic lights are present, this is extremely disturbing and represents a security risk, as the driver is distracted by the constant manipulation of the sun visor from the actual traffic.

Another option is to look through the sun visor at the traffic light to see the traffic light. Users of motor vehicles with sunroofs or panoramic glazings can also help to extend their heads slightly upwards to be able to look through the sunroof or the panoramic glazing on the traffic lights. For this, however, the headliner must be pushed aside before. In addition, here too, the driver is constantly forced to change his attitude and is thus distracted from the traffic.

As can easily be seen, these limitations or safety risks may still be acceptable when the vehicle is at a standstill. However, while driving, for example, to read over the roadway arranged signpost, but this is no longer tolerable, especially when it comes to highway driving at a comparatively high speed.

DISCLOSURE OF THE INVENTION

The object of the present invention is therefore to provide an improved motor vehicle. In particular, the view should be made possible on objects arranged above the roadway, even when the sun visor is folded forwards, without any safety risk being associated therewith.

The object of the invention is achieved by a motor vehicle of the type mentioned above, in which the glare shield is set up to darken the second viewing area in a second state.

Thus, with the glare shield according to the invention, the view is always possible either through the first viewing area or the second viewing area. Thus, for example, arranged above the road traffic light, arranged above the road signs, signposts and the like are always kept in mind, without the driver would have to change its position significantly, even if the sun visor is folded forward because of low sun. Thus, on the one hand, an effective glare protection as well as a comfortable view of objects arranged above the roadway are realized by the invention. In addition, road safety is increased because experience shows that the comfort of the driver means that the sun visor either always remains folded up to have a comfortable view of traffic lights and the like, or always remains folded forward to low against To be sun slit. If the sun visor always folded up, so can easily because of the backlight other road users, such. B. cyclists, are overlooked. If the sun visor remains folded down, a red traffic light or other warning message can easily be overlooked. Heavy traffic accidents can be the result. The invention thus provides a valuable contribution to the state of the art.

Within the scope of the invention, a "glazed viewing area" is to be understood as any viewing area which is formed by a solid, transparent body. This does not necessarily consist of glass in the true sense, but may for example also be formed by a plastic disc. Even a complete transparency of the body is not necessary, but under the term "glazed field of view" also tinted windows.

Advantageous embodiments and developments of the invention will become apparent from the dependent claims and from the description in conjunction with the figures.

It is advantageous if the second field of view is bounded on all sides by an opaque or lichtabschwächendes component. In particular, the opaque component may be formed by a sheet metal roof and / or a plastic roof and / or a fabric roof and / or a blackened part of a window of the vehicle. Furthermore, the light-attenuating component can be formed by a partially blackened or tinted part of a pane of the vehicle. In this way, the second field of view is completely covered by the glare shield in the second state, and interfering light can not penetrate laterally next to the second field of view to the driver. The sunscreen is thus particularly effective.

It is advantageous if the glare shield is designed as a hinged and / or displaceable diaphragm which is opaque or lichtabschwächend. This variant can be implemented particularly easily in practice since existing sun visors or vehicles need only be changed slightly in order to achieve the advantages according to the invention.

It is also advantageous if the first and the second region are formed such that their light transmission is variable by applying an electrical voltage. In this embodiment of the invention can on panels whose manipulation can be cumbersome - for example, if the driver has to lean backwards to the sun visor fold or unfold - be waived.

It is particularly advantageous if the motor vehicle comprises a switch and / or an adjusting element, which is adapted to change the light transmittance of the first and second regions in opposite directions. For example, an electrochromic "sun visor" can thus be brought from a first state to a second state or vice versa at the touch of a button. It is particularly comfortable when the switch in question is mounted on the steering wheel or the steering column. Electrochromic glazings also offer the advantage that the light transmission can be infinitely adjusted with a rotary or slide control. Of course, it is also conceivable to bring a physical sun visor motor and thus by pressing a button from a first state to a second state or vice versa.

A particularly advantageous embodiment of the motor vehicle according to the invention is given if it comprises a control which is prepared to increase the light transmittance of the second area below a certain speed and / or at standstill of the vehicle when the first area is darkened. In this variant, the second field of view is therefore only transparent or released when, firstly, the first field of view is obscured and, secondly, the vehicle is stationary or only traveling slowly. Thus, the second field of view remains dark during normal driving, so that glare is completely excluded. When stopping before, for example, a traffic light but the view is released to the same. In addition, it is possible to lighten the second viewing area according to the ambient light. That is, in strong sunlight, the light transmittance of the second field of view is only slightly increased when stopping, in less strong light, such as in low evening sun, the light transmission is increased more strongly.

Finally, it is also advantageous if the motor vehicle according to the invention is designed as a passenger car. Due to the low seating position (eg compared to a truck), when the sun visor is folded down, the visibility of objects above the road surface is particularly difficult for this vehicle class. The advantage of the invention thus appears here particularly clearly.

The above embodiments and developments of the invention can be combined in any manner.

BRIEF DESCRIPTION OF THE FIGURES

The present invention will be explained in more detail with reference to the exemplary embodiments indicated in the schematic figures of the drawing. It shows:

1 a passenger car with two additional roof windows as second viewing areas;

2 a passenger car with an additional roof window, which forms the second viewing areas;

3 a passenger car with an additional roof window, in which the second viewing areas are integrated;

4 a passenger car with a panoramic glazing, in which the second viewing areas are integrated;

5 a variant of the invention, in which a sun visor can be moved;

6 as 5 , only with additional folding joint;

7 a variant of the invention in which a sun visor with the aid of a roller carriage can be moved and pivoted;

8th as 7 , only with longer guide rail for the roller carriage;

9 the roller carriage 7 and 8th in detail;

10 a variant of the invention in which a sun visor can be moved and pivoted by means of a parallelogram mechanism and

11 the parallelogram mechanics 10 in detail.

DETAILED DESCRIPTION OF THE INVENTION

1 shows a vehicle 1a , here a passenger car, known per se. On the windshield 2 two first viewing areas A are arranged, behind which in the illustration shown congruent two sun visors 3 are arranged. In known manner, these sun visors serve 3 to darken the first viewing area A in a first, ie, folded forward, state. Most are sun visors 3 completely opaque, but conceivable would be partially permeable elements.

In addition, the vehicle includes 1a obliquely above or behind the first viewing areas A arranged second viewing areas B. These are in the example shown by two small roof windows 4a formed, which are the same size as the sun visors 3 are. The second viewing areas are thus on all sides by an opaque component, concretely by the (metal) roof, limited.

According to the invention, the glare protection, which in this example by the sun visors 3 is formed, designed to darken the second field of view B in a second, ie folded back state. In this way, the view is always possible either through the first field of view A or the second field of view B. For example, a traffic light, traffic signs and the like arranged above the roadway can always be kept in view, even if the sun visor 3 because of low sun is folded forward. Thus, on the one hand, an effective glare protection as well as a comfortable view of objects arranged above the roadway are realized by the invention.

In the present example, it was assumed that the sun visor 3 is a standard sun visor, which can be pivoted about a hinge disposed on the upper edge. Of course, other designs are possible, as in the 5 to 11 is shown in detail.

In 2 is a vehicle 1b represented, which in the 1 illustrated vehicle 1a is very similar. In contrast, but instead of the small skylight 4a a single elongated roof window 4b intended. In this variant, a small area remains even when folded back sun visors 3 uncovered. To the roof area also in this condition of the sun visors 3 can make completely opaque, the center area of the skylight 4b for example blackened. The second viewing areas are thus on all sides by opaque components, concretely by the (metal) roof and a blackened part of a disc of the vehicle 1b limited. Alternatively, the said center region may also be merely partially blackened or tinted and thus form a light-attenuating component limiting the second viewing region B.

3 shows a further variant of a vehicle 1c , which in the 2 illustrated vehicle 1b is very similar. In contrast, the roof window 4c but even bigger than the skylight 4b and extends virtually the entire width of the vehicle roof. In addition, it connects directly to the windshield 2 on, so that a panoramic glazing is realized. Of course, the windshield can 2 and the skylight 4c also be made of one part. Again, by a standard sun visor (or by a sun visor as in the 5 to 11 shown) optionally the first field of view A or the second field of view B are darkened.

4 now shows a further embodiment of a vehicle 1d , which in the 3 shown vehicle 1c is very similar. In this example are the windshield 2 and the skylight made in one piece, so form a panoramic glazing. However, instead of the conventional sun visors, a first field of view A and a second field of view B provided, the light transmission is variable by applying an electrical voltage. For example, known electrochromic glass or LC glass (liquid crystal glass) can be used. To control the two viewing areas A and B, for example, a switch and / or an adjusting element can be provided with which the light transmission of the first and second areas A and B can be changed in the same way.

While with a switch only the change of state of field of view A = dark and field of view B = transparent to field of view A = transparent and field of vision B = dark, a stepless, opposite adjustment of the light transmittances is possible, for example with the aid of a rotary knob. Alternatively, it is also conceivable, for. B. adjust the contrast between the two viewing areas A and B with a knob and switch the darkening between the viewing areas A and B with a switch.

In a further advantageous variant of the invention, the motor vehicle comprises 1d also a control, with the help of which the light transmission of the second field of view B below a certain speed and / or at standstill of the vehicle 1d is increased when the first field of view A is darkened. In this variant, the second field of view B is therefore only transparent if, firstly, the first field of view A is darkened and, secondly, the vehicle 1d stands or drives only slowly. Thus, the second field of view B remains dark during normal driving, so that glare is completely excluded. When stopping before, for example, a traffic light but the view is released to the same. In addition, it is possible to brighten the second field of view B according to the ambient light. That is, in strong sunlight, the light transmittance of the field of view B is only slightly increased when stopping, in less strong light, such as in the low evening sun, the light transmission is increased more.

In principle, this variant can also be with the help of conventional screens, for example in the vehicle 1a from the 1 to realize. This is done by a control of the state, ie the position of the sun visor 3 determined. Is she folded forward and the vehicle 1a stands still or drives only slowly, a second panel, which is similar to the headliner formed in known sliding roofs, moved away from the second field of view B motor, preferably forward or backward to allow the view through the second field of view B.

5 now shows a section in the area of a windshield 2 and a roof window 4 according to a further variant of the invention. Next to the windshield 2 and the skylight 4 shows 5 a tin roof 5 , which is executed in the area shown as, formed from two half-shells roof cross member, a fairing 6 , between the tin roof 5 and the windshield 2 or the skylight 4 arranged seals 7a and 7b , as well as a sliding sun visor 3a , Like from the 5 can be easily seen, the sun visor 3a be moved between a rear position and a front position. In the front position, ie in a first state, the first field of view A is darkened. In the rear position, ie in a second state, the second field of view B is darkened.

It should be noted at this point that the size of the first field of view A does not just depend on the size of the sun visor 3a but also depends on the angle of incidence of the light. If the light falls comparatively flat, the first viewing area increases towards the front. Of course, this phenomenon is not just for those in the 5 to be considered arrangement, but also for the variants of the invention shown in the other figures.

6 shows an arrangement which in 5 is very similar to the arrangement shown. In contrast, there is the sun visor 3b but of two parts, over one joint 8th connected to each other. This allows the sun visor 3b folded down in the forward position to improve the glare protection, especially in very low sun.

7 now shows a variant of the invention, in which a sun visor 3c rotatable on a roller carriage 9 (see also 9 ), which in turn is in guide rails 10a can be moved. The sun visor 3c can thus be moved from a rear position to a front position and in addition to the roller carriage 9 be pivoted so that the sun visor 3c can be optimally adapted to the needs of the driver. In the forward position, ie in a first state, again the first field of view A is darkened. In the rear position, ie in a second state, in turn the second field of view B is darkened.

8th shows a variant of the invention, which in 7 shown arrangement is very similar. In contrast, however, is the guide rail 10b longer, so the sun visor 3d also in the rear position is folded forward. This way, one stays down on the sun visor 3d arranged handle always facing the driver.

9 shows the roller carriage 9 now in detail. This consists of a basic body 11 , arranged on rollers 12 , as well as a storage 13 for the sun visor 3c or 3d , Preferably, the roller carriage 9 made of plastic.

10 shows a further variant of the invention. This is a sun visor 3e on a beam 14 rotatably mounted, which via two levers 15 can be swung forwards or backwards. In the front position, ie in a first state, the first field of view A is thus darkened again. In the rear position, ie in a second state, the second field of view B is darkened.

11 shows the mechanics 10 for better representation in perspective view. It is easy to see that the beam 14 can be moved along a circular path without this changes its position. This also remains in the bar 14 (tight) mounted sun visor 3e always in the same position, regardless of whether it is in the front or rear position.

Alternatively, on the bars 14 and two of the four levers 15 also be waived if the sun visor 3e directly on the remaining levers 15 is attached. This has the advantage of a simplified construction, but retains the sun visor 3e when changing the position their position does not, but is around the vehicle-side bearing point of the lever 15 turned.

In conclusion, it is stated that the variants presented represent only a part of the possibilities in order to implement the inventive concept. However, those skilled in the art can easily adapt the disclosed teaching to their needs. It is further noted that the components of the figures may not be drawn to scale and that the individual variants illustrated in the figures may also form the subject matter of an independent invention.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 3512807 A1 [0002]
• DE 19922973 A1 [0002]
• DE 4301931 A1 [0002]
• DE 2724414 A1 [0002]
• DE 10031201 A1 [0002]
• DE 3227719 A1 [0002]
• DE 4106019 A1 [0002]
• EP 1859975 A2 [0002]
• DE 102006011417 A1 [0002]
• DE 10245245 A1 [0002]

Claims (9)

Motor vehicle ( 1a ... 1d ), comprising - a first glazed viewing area (A) - one in the region of the roof of the motor vehicle ( 1a ... 1d ) arranged above the first viewing area (A) or behind the first viewing area (A) second glazed viewing area (B) and - a glare protection ( 4 ), which is adapted to darken the first viewing area (A) in a first state, characterized in that the glare shield is further adapted to darken the second visual area (B) in a second state. Motor vehicle ( 1a ... 1d ) according to claim 1, characterized in that the second viewing area (B) is bounded on all sides by an opaque or lichtabschwächendes component. Motor vehicle ( 1a ... 1d ) according to claim 2, characterized in that the light-impermeable component by a metal roof and / or a plastic roof and / or a fabric roof and / or a blackened part of a window of the vehicle ( 1a ... 1d ) is formed. Motor vehicle ( 1a ... 1d ) according to claim 2, characterized in that the light-attenuating component by a partially blackened or tinted part of a disc of the vehicle ( 1a ... 1d ) is formed. Motor vehicle ( 1a ... 1d ) according to one of claims 1 to 4, characterized in that the glare protection as folding and / or sliding aperture ( 3a ... 3e ), which is opaque or lichtabschwächend. Motor vehicle ( 1a ... 1d ) according to one of claims 1 to 4, characterized in that the first and the second region (A, B) are formed such that the light transmission is variable by applying an electrical voltage. Motor vehicle ( 1a ... 1d ) according to one of claims 1 to 6, characterized by a switch and / or an adjusting element, which is or which is adapted to change the light transmittance of the first and second region (A, B) against the same. Motor vehicle ( 1a ... 1d ) according to one of claims 1 to 6, characterized by a control, which is prepared to reduce the light transmission of the second area (B) below a certain speed and / or at standstill of the motor vehicle ( 1a ... 1d ) when the first area (A) is darkened. Motor vehicle ( 1a ... 1d ) according to one of claims 1 to 8, characterized in that it is designed as a passenger car.

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