DE202013008973U1 - Water supply system for draining water from a windshield - Google Patents

Abstract

A water supply system for draining off water from a windshield (2) of a motor vehicle, the water supply system comprising: - a water deflector (7) which can be arranged along an underside of the windshield (2), between the windshield (2) and a motor hood (9) of the motor vehicle Water deflector (7) a profile with a in a first profile section (11) in the region of the hood (9) sloping edge, with a in a second profile section (12) to the windshield (2) towards falling edge and with a to the second profile section (12) subsequent Profilendabschnitt (13) with the windshield (2) towards rising edge, - a water tank device (6), with a vertically upwardly open U-shaped profile body under the first and second profile section (11, 12) and of the water deflector (7) is covered, wherein the water deflector (12) openings for the passage of air from a Engine compartment of the motor vehicle in the U-shaped profile body of the water box device (6) for separating the water contained in the air volume forms, - along the Profilendabschnitts (13) along the underside of the windshield extending trough element (14) for discharging water from the windshield (2 ) and - a gutter cover (15) covering the gutter cover (15) with a plurality of recesses (16) for the passage of water.

Description

The improvement relates to a water supply system for draining water from a windshield of a motor vehicle.

From the DE 196 48 330 B4 a vehicle body is known with a water supply system in which a water deflector extending along an underside of the windshield is present. This water deflector forms on average a profile that forms a downwardly open arch with two curved edges. The front arc edge points to the hood and has a plurality of openings through which air from the engine compartment in a arranged under the water deflector box, the so-called water tank can be sucked about by means of fans. The water in the intake air collects only by gravity on the bottom of the box and is from there laterally and down to the body, ie outward, derived. The rainwater coming from the windscreen collects in front of the arch, more precisely in front of the rear, so the windshield facing arch edge of the Wasserabweisers. In some cases, this rainwater is also passed through other openings located at or in front of the trailing arc in the water box. The water box may have ribs, embossments, Abschotwänden or other means for the provision of defined water paths for the water pipe.

An object of the improvement is to provide an alternative water supply system which allows to reduce the droplet fraction in the water box and also to save resources for providing defined water paths within the water box.

This object is solved by the features of claims 1. Further embodiments of the invention are the subject of the dependent claims. These can be combined in a technologically meaningful way. The description, in particular in conjunction with the drawing, additionally characterizes and specifies the invention.

• – einen entlang einer Unterseite der Windschutzscheibe, zwischen der Windschutzscheibe und einer Motorhaube des Kraftfahrzeugs anordbaren Wasserabweiser, wobei der Wasserabweiser ein Profil mit einer in einem ersten Profilabschnitt im Bereich der Motorhaube abfallenden Flanke, mit einer in einem zweiten Profilabschnitt zur Windschutzscheibe hin abfallenden Flanke und mit einem sich an den zweiten Profilabschnitt anschließenden Profilendabschnitt mit zur Windschutzscheibe hin ansteigender Flanke umfasst,
• – eine Wasserkastenvorrichtung, deren mit einer in Hochrichtung nach oben geöffneter U-förmiger Profilkörper unter dem ersten und zweiten Profilabschnitt verläuft und von dem Wasserabweiser abgedeckt ist, wobei der Wasserabweiser Öffnungen für den Luftdurchtritt aus einem Motorraum des Kraftfahrzeugs in den U-förmigen Profilkörper der Wasserkastenvorrichtung zur Abscheidung des in dem Luftvolumen enthaltenden Wassers ausbildet,
• – eine entlang des Profilendabschnitts eine entlang der Unterseite der Windschutzscheibe verlaufendes Rinnenelement zur Ableitung von Wasser der Windschutzscheibe und
• – eine das Rinnenelement abdeckende Rinnenabdeckung mit einer Mehrzahl von Ausnehmungen für den Wasserdurchtritt ausgebildet ist.

In a first embodiment, a water supply system for discharging water of a windshield of a motor vehicle is proposed, comprising the water supply system:

• A water deflector which can be arranged along an underside of the windshield, which can be arranged between the windshield and an engine hood of the motor vehicle, wherein the water deflector has a profile with a flank falling down in a first profile section in the region of the engine hood, with a flank sloping towards the windshield in a second profile section and with a profile end section adjoining the second profile section with an edge rising towards the windshield,
• - A water tank device whose runs with a vertically upwardly open U-shaped profile body under the first and second profile section and is covered by the Wasserabweiser, the Wasserabweiser openings for the passage of air from an engine compartment of the motor vehicle in the U-shaped profile body of the water tank device for separating the water contained in the air volume,
• - One along the Profilendabschnitts a along the underside of the windshield extending gutter element for dissipating water of the windshield and
• - A gutter element covering the gutter cover is formed with a plurality of recesses for the passage of water.

According to this embodiment, therefore, another channel element is used in addition to the existing water tank, which makes it possible to direct rainwater approximately to drain holes of the body, without using the water box as part of the water path here. An advantage of the system may be that the water tank below the water deflector may have a simpler structure, since on the one hand the rainwater in particular via the arranged on the level of the water deflector gutter element to the body, in particular in the direction of the A-pillars, and the Others, the introduced into the water tank air less water in the form of drops or mist and thus the engine compartment can be kept rtivally dry especially without special air intake. In addition, the direct discharge of the water created thereby can prevent, for example, droplet suction through a collar at an air inlet when the blower is switched on, so that no moisture is introduced into the passenger compartment, which advantageously starts up the panes from the inside and the construction of a steamy one Climate in the passenger compartment reduced or completely prevented.

The gutter element can be formed in an advantageous embodiment of the Profilendabschnitt of Wasserabweisers. For example, the water deflector may have a groove-shaped groove extending along the lower edge of the windshield, i. H. is formed transversely to the plane of the windshield. The thus created integral of Wasserabweisers and gutter element can facilitate assembly and requires no further than the already known connection means such as locking, screw or adhesive connections.

Furthermore, or instead the gutter cover may be formed by the Profilendabschnitt. In the second alternative, the channel element can be designed as a channel body which can be connected to connecting elements at the profile end section and in particular at the channel cover. As a particularly advantageous connecting means, a latching connection has proven, with which the gutter body can be latched from below into the gutter cover.

In a further embodiment it is provided that the channel element and the channel cover are formed in one piece and tubular. The corresponding component can also be locked in a development of this embodiment with the Wasserabweiser or connected by means of further connection variants, such as a screw or adhesive connection.

In a further embodiment, the channel element forms a channel center section and two channel end sections connected to the center section, wherein the channel end sections have a gradient relative to the channel center section. As a result, it is achieved, in particular by exploiting the force of gravity, that rainwater arising from the direction of the windscreen can be diverted rapidly and preferably evenly distributed to both sides of the vehicle body.

It was found that the gradient should have a gradient angle of more than 4 °, in particular of ≥ 6 °, in order to achieve sufficient drainage on the one hand and to be able to form the channel element with a sufficiently low overall height on the other hand. When cornering can be reduced or prevented by the gradient, a reflux of the effluent from the windshield water by centrifugal forces occurring, respectively a corresponding.

The height of the side walls of the gutter element may increase from the gutter middle section to open ends of the gutter element, so that the gutter element bears against the water diverter over the entire connection length and thereby has the desired gradient. The Wasserabweiser must therefore have no slope at its forming the sheet profile sections.

The gutter element may further comprise a uniform width over its entire length in another aspect. Alternatively, the gutter element may widen or taper in the direction of its two open ends. Specifically, on the side of the windshield onto which a portion of the water is forced by a windshield wiper against a side skirt of the windshield and from there along the edge of the windshield towards the water deflector, a broadening of the gutter end portions may be provided to increase the increased water runoff to cope with the windshield in this area.

In a particular embodiment, the gutter element can be molded together with the Wasserabweiser in one piece, in particular with an upwardly open gap into which a cover with, for example, holes or a grid can be inserted and in particular can be clipped into it to prevent For example, leaves or large particles of dirt are flushed with the water into the gutter element and thereby possibly clog it at least partially.

The openings of the channel cover can all have the same diameter and be uniformly distributed, or have different sizes and / or be distributed over the area as desired or according to a predetermined pattern.

In a further embodiment, the gutter element may, for example, be glued to the water deflector or otherwise connected in a materially bonded manner. The water deflector may also have connection openings, can be pressed or clipped into the mating connector of the channel element to connect the Wasserabweiser with the channel element positive and non-positive. The mating male connectors may also be parts of, for example, clips placed around the channel member and clipped into the water deflector, for example, to secure the channel member to the water deflector. Other compounds which are not mentioned here but which are familiar to the person skilled in the art are likewise included in the scope of the proposed improvement.

In order to facilitate the recycling of the water deflector, the channel element and the channel cover can be made of the same material or of a material from the same family of materials as the water deflector. The material may be a plastic, the plastic should be weather resistant and should show little or no age-related changes, such as discoloration or other optical changes.

The water deflector with the example formed gutter element has a higher breaking strength. This may provide benefits for pedestrian protection, for example, a lower risk of injury to the head due to a reduced risk of fragmentation of the water deflector when impact forces by the pedestrian in an accident.

For the entire description and claims, the term "a" is used as an indefinite article and the number of parts is not limited to a single one. Should "a" have the meaning of "only one", it will be understood by those skilled in the context or will be unambiguously disclosed by the use of appropriate terms such as "a single".

Hereinafter, some embodiments will be explained in more detail with reference to the drawings. Show it:

1 FIG. 2: a central longitudinal section through a connecting region of a motor vehicle body lying below the windshield, FIG.

2 : A central longitudinal section through an underlying below the windshield alternative connection area of a motor vehicle body

3 : perspective view of a gutter element.

In the 1 is a frame profile 1 shown, which is to a windshield 2 towards a front wall cover 3 and a front wall reinforcement extending thereunder 4 forms. On the front wall cover is the windshield 2 by means of window adhesive 5 attached.

The frame profile 1 goes down into a water box 6 over, which upwards from a Wasserabweiser 7 is covered. This has an air intake grille in the front area 8th , Towards the front is this air inlet grille 8th from the windshield side end of a hood 9 covered. The gap between the bottom edge of the windshield 2 and the water deflector 7 is from a Zeirleiste 10 bridged.

One along the underside of the windshield 2 , between the windshield 2 and the hood 9 the motor vehicle arranged water deflector 7 forms a profile with a in a first profile section 11 in the area of the hood 9 sloping flank and a second profile section 12 to the windshield 2 sloping flank. At another, the second profile section 12 subsequent profile end section 13 with flank rising towards the windshield is one along the profile end section 13 running gutter element 14 to dissipate water from the windshield 2 intended. The gutter element 14 is from a gutter cover 15 covered. with a plurality of recesses 16 is designed for the passage of water.

The gutter cover is connected by means of locking means in the form of Rasthacken with the gutter element. The gutter element thus forms a in the gutter cover 15 fastenable gutter body. The gutter cover 15 is also with the end wall cover 3 connected by a groove 17 inside the gutter cover 15 is formed, in which engages the end wall cover with an end portion.

In 2 an alternative water supply system is shown. The gutter cover 15 is here from above on the gutter element 14 by means of pins 19 , which are in recesses of the gutter element 14 inserted are attached and the channel element 14 is with the bulkhead cover 3 by means of a groove 18 connected.

In other embodiments, not shown here, the gutter element and / or the gutter cover may also be an integral part of the water deflector and thus form the profile end section.

In 3 is the gutter element 14 as gutter body with a gutter middle section 20 and two trough end sections connected to the center section 21 form, wherein the gutter end sections 21 opposite the gutter middle section a slope with a gradient angle 22 of 4 degrees. At the top of the gutter element are a plurality of pins 23 , by means of which the channel element 14 with corresponding recesses of a gutter cover or the Profilendabschnitt 13 of the water deflector 7 can be connected.

Although some possible embodiments of the invention have been disclosed in the foregoing description, it is to be understood that numerous other variants of embodiments exist through the possibility of combining all of the cited and further all of the obvious technical features and embodiments. It is further understood that the embodiments are to be understood as examples only, which in no way limit the scope, applicability and configuration. Rather, the foregoing description would suggest a suitable way for the skilled person to realize at least one exemplary embodiment. It should be understood that in an exemplary embodiment, numerous changes in the function and arrangement of the elements may be made without departing from the scope and equivalents disclosed in the claims.

LIST OF REFERENCE NUMBERS

1

frame profile

2

Windshield

3

Bulkhead cover

4

Bulkhead reinforcement

5

disk adhesive

6

cistern

7

water deflector

8th

Air intake grill

9

Engine Hood

10

molding

11

profile section

12

profile section

13

profile end section

14

An element

15

channel cover

16

recesses

17

groove

18

groove

19

pen

20

Rinne midsection

21

Rinnenendabschnitte

22

slope angle

23

pen

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 19648330 B4 [0002]

Claims (8)

Water supply system for draining off water from a windshield ( 2 ) of a motor vehicle, the water supply system comprising: - one along an underside of the windscreen ( 2 ), between the windscreen ( 2 ) and a hood ( 9 ) of the motor vehicle water deflector ( 7 ), wherein the water deflector ( 7 ) a profile with one in a first profile section ( 11 ) in the area of the hood ( 9 ) sloping flank, with one in a second profile section ( 12 ) to the windscreen ( 2 ) sloping flank and with a to the second profile section ( 12 ) subsequent profile end section ( 13 ) with the windscreen ( 2 ) rising edge comprises, - a water box device ( 6 ), whose with a vertically upwardly open U-shaped profile body under the first and second profile section ( 11 . 12 ) and from the water deflector ( 7 ), wherein the water deflector ( 12 ) Openings for the passage of air from an engine compartment of the motor vehicle in the U-shaped profile body of the water tank device ( 6 ) for separating the water contained in the air volume, - a along the Profilendabschnitts ( 13 ) running along the underside of the windshield groove element ( 14 ) for the discharge of water of the windshield ( 2 ) and - one the gutter element ( 14 ) covering gutter cover ( 15 ) with a plurality of recesses ( 16 ) for the passage of water. Water supply system according to claim 1, wherein the channel element ( 14 ) from the profile end section ( 13 ) is formed. A water supply system according to claim 1 or 2, wherein the gutter cover ( 15 ) from the profile end section ( 13 ) is trained. Water supply system according to one of the preceding claims, wherein the channel element ( 14 ) as having connection means ( 23 ) is formed on the Profilendabschnitt connectable channel body. Water supply system according to one of the preceding claims, wherein the channel element and the channel cover are integrally formed and tubular. A water supply system according to any one of the preceding claims, wherein the gutter member comprises a gutter central portion ( 20 ) and two trough end sections ( 21 ), wherein the gutter end sections ( 21 ) opposite the gutter middle section ( 20 ) have a slope. A waterway system according to claim 6, wherein the slope is a grade angle ( 22 ) of ≥ 6 °. Water deflector ( 7 ) for a water supply system according to one of the preceding claims.

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