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WO2004076239A1 - Water drainage system for a car body cavity - Google Patents

Water drainage system for a car body cavity Download PDF

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Publication number
WO2004076239A1
WO2004076239A1 PCT/EP2003/013865 EP0313865W WO2004076239A1 WO 2004076239 A1 WO2004076239 A1 WO 2004076239A1 EP 0313865 W EP0313865 W EP 0313865W WO 2004076239 A1 WO2004076239 A1 WO 2004076239A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
drainage
sealing element
flap
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2003/013865
Other languages
German (de)
French (fr)
Inventor
Uwe Bauer
Robert Mayrhofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to JP2004568666A priority Critical patent/JP2006513908A/en
Priority to EP03789162A priority patent/EP1597115A1/en
Publication of WO2004076239A1 publication Critical patent/WO2004076239A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/24—Superstructure sub-units with access or drainage openings having movable or removable closures; Sealing means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/07—Water drainage or guide means not integral with roof structure

Definitions

  • the invention relates to a drainage arrangement for a body cavity of the type mentioned in the preamble of claim 1.
  • the drainage opening is provided with a closure consisting of four closure segments, each of which is formed by a thin bottom area of the sealing element.
  • the closure segments are each designed as quarter-circle segments with the radius of the drainage opening and project radially from the inner circumference of the sealing element into the drainage opening. In the closed position of the closure, the free narrow sides of the closure segments abut one another in a sealing manner.
  • closure segments are lowered by bending elastic deformation into a passage position in which there is one each between adjacent closure segments slot-shaped openings for water passage is released.
  • joints between the abutting closure segments cannot be completely avoided in the closed position, so that moisture can penetrate into the cavity of the door at least to a small extent.
  • a negative pressure can form in the interior of a motor vehicle during operation, in particular when the side window or roof opening is open, which can also create a negative pressure in the cavity of the door, which would cause the locking segments to be raised into an upwardly bent position and as a result Water could be sucked through the slit-shaped openings into the cavity of the door.
  • the object of the invention is to further develop a drainage arrangement for a body cavity of the type mentioned in the preamble of claim 1 in such a way that the sealing effect of the sealing element can be considerably improved while maintaining reliable drainage of the cavity.
  • the advantage achieved by the invention is that a single sealing flap is provided as the closure of the drainage opening, which completely and seamlessly covers the drainage opening in its closed position.
  • a circumferential sealing seat is used to prevent water from getting into the drainage opening on the circumference provided between the sealing flap and the opening edge of the drainage opening. If there is negative pressure in the body cavity, the sealing flap can rest against the opening edge of the drainage opening.
  • the sealing element and sealing flap can be designed as separate parts that can be connected to one another to form an assembly part.
  • an anchoring pin can protrude from the broad side of the sealing flap and engages in a corresponding fastening hole in the sealing element.
  • the anchoring peg can protrude from a front end region of the sealing flap, the anchoring peg being secured in the fastening hole of the sealing element in a rotationally secured manner in order to precisely position the sealing flap.
  • the sealing seat can comprise a sealing leg protruding all around from the sealing flap and a peripheral sealing ring of the sealing element which projects from the opening edge of the drainage opening, the sealing ring of the sealing element and the sealing leg of the sealing flap being concentric in the closed position.
  • the sealing element can have a drainage opening with at least two partial openings spaced apart from one another.
  • the sealing seat can be circular and enclose the fastening hole and all partial openings.
  • the anchoring pin can protrude from a circular cover area of the sealing flap, which is extended in the longitudinal direction of the body by a trapezoidally tapering end area, so that the sealing flap would be pressed against the sealing element when exposed to the wind.
  • the illustration shows:
  • FIG. 1 shows a sealing element of a drainage arrangement for a door sill of a motor vehicle body in a view from below
  • FIG. 3 shows a section through the sealing element and the hole edge of a drain hole of the door sill according to line III-III in FIG. 1.
  • Fig. 1 of a side door sill 1 of a motor vehicle body not shown in detail, only a horizontally extending floor area with a circular drain hole 2 is shown, in which an associated sealing element 3 is arranged.
  • the door sill 1 is designed in a conventional shell construction as an approximately rectangular hollow profile and delimits an inner cavity 4 which extends over its entire length. To drain the cavity 4, several drain holes 2 can be arranged distributed over the length of the floor.
  • the sealing element 3 has a hollow cylindrical anchoring section 5, which penetrates the drain hole 2 and protrudes with its free end into the cavity 4 of the door sill 1.
  • the anchoring section 5 of the sealing element 3 is supported on its outer circumference in the drain hole 2 and has three radially protruding retaining legs 6 for axial attachment, which rest on the side of the hole of the drain hole 2 on the side facing the cavity.
  • the holding legs 6 are each provided with an insertion bevel at their free ends, which are connected at the free end of the anchoring section 5 to form a narrow, circular ring.
  • the periphery of the anchoring section 5 is each provided with a rectangular passage opening 7.
  • the total of three passage openings 7 are each pulled down to approximately the level of the hole edge of the drain hole 2 in order to enable drainage even in the case of a very low water level in the cavity 4.
  • the underside of the anchoring section 5 connects to a horizontally extending cover plate 8 of the sealing element 3, the hollow cross section of the anchoring section 5 being closed by the cover plate 8.
  • the cover plate 8 has a teardrop-shaped outer circumference, the width of the cover plate 8 tapering in the longitudinal direction of the vehicle.
  • a narrow sealing lip 9 is circumferentially angled from the outer circumference of the cover plate 8 and bears against the edge of the drain hole 2.
  • the sealing element 3 with its anchoring section 5 and its cover plate 8 is made in one piece from a rubber-elastic material.
  • the cover plate 8 of the sealing element 3 has a drainage opening with three spaced apart partial openings 10a, 10b and 10c, each of which is approximately circular segment-shaped and together approximately one Cover three-quarter circle.
  • the sealing element 3 is provided with a rectangular fastening hole 11 for a sealing flap 12.
  • the three partial openings 10a, 10b and 10c and the fastening hole 11 are completely enclosed by a narrow, circular circumferential sealing ring 14, which is formed in one piece with the sealing element 3 and protrudes downward from the cover plate 8.
  • the sealing flap 12 is designed as a thin-walled rubber plate, an anchoring pin 13 protruding from a front edge region of the flap and penetrating the fastening hole 11 of the sealing element 3.
  • the anchoring pin 13 is designed as a hollow pin with a rectangular outer circumference and a circular inner hollow cross section.
  • the anchoring pin 13, which is supported all around in the square fastening hole 11, is axially secured at its step-widened free end at the hole edge of the fastening hole 11. Since the anchoring pin 13 engages with its shaft in the fastening hole 11 with a precise fit, the sealing flap 12 is held in its desired position with respect to the cover plate 8.
  • the anchoring pin 13 is provided at its free end with wedge-shaped insertion bevels.
  • the sealing flap 12 comprises a front, circular cover area 15 which is extended by a triangular end area 16 in the longitudinal direction of the vehicle.
  • a narrow sealing leg 17 is angled all around from the cover area 15 of the sealing flap 12.
  • the sealing flap 12 together with the sealing leg 17 and Anchoring pin 13 is made in one piece from a rubber-elastic material that has a slightly lower hardness than the material of the sealing element 3.
  • the sealing flap 12 rests with its sealing leg 17 in a circumferential sealing manner on the cover plate 8 of the sealing element 3, all partial openings 10a, 10b and 10c of the drainage opening and the fastening hole 11 being completely covered at the bottom by the sealing flap 12 and by the sealing leg 17 are enclosed.
  • the cover region 15 of the sealing flap 12 lies against the sealing ring 14 of the sealing element 3, the sealing ring 14 and sealing leg 17 being arranged concentrically.
  • the end region 16 of the sealing flap 12 lies on two narrow ribs which protrude from the cover plate 8 of the sealing element 3 in the rear region.
  • the sealing flap 12 In its closed position, the sealing flap 12 is therefore only in a linear form against the sealing element 3, as a result of which sticking or stopping of the sealing flap 12 due to cold or dirt can largely be avoided.
  • the sealing flap 12 In its closed position, the sealing flap 12 covers a raised central surface area of the cover plate 8 of the sealing element 3 and is enclosed in a particularly protected manner by lowered outer wall areas of the sealing element 3.
  • the sealing flap 12 is first preassembled with its anchoring pin 13 in the fastening hole 11 of the sealing element 3 and then the sealing element 3 together with the sealing flap 12 is inserted into the associated drain hole 2 of the door sill 1.
  • the sealing flap 12 has an arrow-shaped marking 18 on its underside.
  • the sealing element 3 is aligned in the drain hole 2 such that the marking 18 points in the direction of travel of the car, ie in the opposite longitudinal direction of the vehicle. Due to the special shape of the sealing flap 12 with the end region 16 and its fastening via the anchoring pins 13 arranged in a front length region of the sealing flap 12, the sealing flap 12 is acted upon by the airstream in the direction of its closed position.
  • the cavity 4 delimited by the door sill 1 is connected to the interior of the vehicle in such a way that a negative pressure in the vehicle interior would lead to a negative pressure in the cavity 4.
  • the sealing flap 12 would also be acted on in the direction of the closed position and would come into contact with the sealing element 3.
  • the door sill 1 is usually drained when the vehicle is stationary. In this case, water accumulated in the cavity 4 of the door sill 1 would first enter the hollow cross section of the sealing element 3 via the passage openings 7. As a result of pressurization by the . Water would bend the sealing flap 12 in its lowered passage position and lift it off at least with the end region 16 and a rear part of its cover region 15 from the cover plate 8 of the sealing element 3. The water would thus drain into the surroundings via the partial openings 10a, 10b and 10c of the drainage opening.
  • the door sill 1 can be covered on its bottom by a conventional and therefore not shown trim part.
  • the water could initially run through the partial openings 10a, 10b and 10c into an intermediate space between the door sill 1 and the cladding part and from there through lateral openings of the cladding part into the environment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Seal Device For Vehicle (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)

Abstract

The invention relates to a water drainage system for a car body cavity (4) comprising at least one drainage hole (2) of the body (door threshold 1), an associated waterproof element (3) which is sealingly maintained along the contour of the hole, a cover element between the drainage hole (2) of the body (door threshold 1), a drainage opening (partial openings 10a, 10b, 10c) of the waterproof element (3), which is parallel to the drainage hole and a elastically deformable closing element (sealing valve 12) for sealing the water drainage opening (partial openings 10a, 10b, 10c). Said closing element is openable by the pressure of water accumulated in the cavity (4). The aim of said invention is to improve the watertightness of said waterproof element (3) and ensure reliable water drainage from the cavity (4). For this purpose, a single sealing valve (12) is used as a closing element for the water drainage opening (partial openings 10a, 10b, 10c). When said element is in a closed position, the valve entirely covers said water drainage opening (partial openings 10a, 10b, 10c). An annular sealing seat (sealing ring 14, sealing arm 17) is arranged between the opening edge and the sealing valve (12).

Description

Entwässerungsanordnung für einen Karosseriehohlräum Drainage arrangement for a body cavity

Die Erfindung betrifft eine Entwässerungsanordnung für einen Karosseriehohlraum der im Oberbegriff des Anspruchs 1 genannten Art .The invention relates to a drainage arrangement for a body cavity of the type mentioned in the preamble of claim 1.

Aus der US 3 701 560 ist eine derartige Entwässerungsanordnung bereits für einen Hohlraum einer Kraftwagentür ' bekannt . Die Tür weist an ihrer Unterseite ein kreisförmiges Ablauf- loch auf, in dem ein Dichtelement umfangsseitig gehalten ist. Ein radial vom Außenumfang des Dichtelements abragender Dichtring liegt flächig am Lochrand der Durchtrittsöffnung an. Das Dichtelement aus einem gummielastischen Material ist hohlzylindrisch ausgebildet, wobei der Hohlquerschnitt des Dichtelements eine Entwässerungsöffnung bildet, über die im Hohlraum der Tür angesammelte Feuchtigkeit austreten kann.From US 3,701,560 such a drainage arrangement is already known for a cavity of a motor vehicle door '. The underside of the door has a circular drain hole, in which a sealing element is held on the circumference. A sealing ring projecting radially from the outer circumference of the sealing element lies flat against the hole edge of the passage opening. The sealing element made of a rubber-elastic material is hollow-cylindrical, the hollow cross section of the sealing element forming a drainage opening through which moisture that has accumulated in the cavity of the door can escape.

Um das Eindringen von Schmutz und Feuchtigkeit aus der Umgebung in den Hohlraum der Tür zu vermeiden, ist die Entwässerungsöffnung mit einem Verschluss aus vier Verschlusssegmenten versehen, die jeweils durch einen dünnen Bodenbereich des Dichtelements gebildet sind. Die Verschlusssegmente sind jeweils als Viertel-Kreis-Segmente mit dem Radius der Entwässerungsöffnung ausgebildet und ragen vom Innenumfang des Dicht- elements radial in die Entwasserungsoffnung hinein. In der Geschlossenstellung des Verschlusses stoßen die freien Schmalseiten der Verschlusssegmente dichtend aneinander an.In order to prevent the ingress of dirt and moisture from the environment into the cavity of the door, the drainage opening is provided with a closure consisting of four closure segments, each of which is formed by a thin bottom area of the sealing element. The closure segments are each designed as quarter-circle segments with the radius of the drainage opening and project radially from the inner circumference of the sealing element into the drainage opening. In the closed position of the closure, the free narrow sides of the closure segments abut one another in a sealing manner.

Bei einer Beaufschlagung durch im Hohlraum angesammeltes Wasser werden die Verschlusssegmente durch biegeelastische Verformung in eine Durchlassstellung abgesenkt, in der zwischen einander benachbarten Verschlusssegmenten jeweils eine schlitzförmige Öffnungen zum Wasserdurchtritt freigegeben ist .In the event of exposure to water collected in the cavity, the closure segments are lowered by bending elastic deformation into a passage position in which there is one each between adjacent closure segments slot-shaped openings for water passage is released.

Bei der bekannten Entwässerungsanordnung lassen sich in der Geschlossenstellung Fugen zwischen den aneinanderstoßenden Verschlusssegmenten nicht vollständig vermeiden, so dass zumindest in geringem Umfang Feuchtigkeit in den Hohlraum der Tür eindringen kann.In the known drainage arrangement, joints between the abutting closure segments cannot be completely avoided in the closed position, so that moisture can penetrate into the cavity of the door at least to a small extent.

Des weiteren kann sich im Fahrbetrieb - insbesondere bei geöffnetem Seitenfenster oder einem geöffnetem Dächausschnitt - im Innenraum eines Kraftwagens ein Unterdruck ausbilden, wodurch im Hohlraum der Tür ebenfalls ein Unterdruck entstehen kann, durch welchen die Verschlusssegmente in eine nach oben gebogene Stellung angehoben würden und infolge dessen Wasser durch die schlitzförmigen Öffnungen in den Hohlraum der Tür gesaugt werden könnte .Furthermore, a negative pressure can form in the interior of a motor vehicle during operation, in particular when the side window or roof opening is open, which can also create a negative pressure in the cavity of the door, which would cause the locking segments to be raised into an upwardly bent position and as a result Water could be sucked through the slit-shaped openings into the cavity of the door.

Aufgabe der Erfindung ist es, eine Entwässerungsanordnung für einen Karosseriehohlraum der im Oberbegriff des Anspruchs 1 genannten Art dahingehend weiterzuentwickeln, dass die Dichtwirkung des Dichtelements unter Beibehaltung einer zuverlässigen Entwässerung des Hohlraums erheblich verbessert werden kann.The object of the invention is to further develop a drainage arrangement for a body cavity of the type mentioned in the preamble of claim 1 in such a way that the sealing effect of the sealing element can be considerably improved while maintaining reliable drainage of the cavity.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst .This object is achieved according to the invention by the features of claim 1.

Weitere die Erfindung in vorteilhafter Weise ausgestaltende Merkmale enthalten die Unteransprüche.Further features which advantageously design the invention contain the subclaims.

Der mit der Erfindung erzielte Vorteil besteht darin, dass als Verschluss der Entwässerungsöffnung eine einzige Dichtklappe vorgesehen ist, die in ihrer Geschlossenstellung die Entwässerungsöffnung vollständig und fugenlos überdeckt. Um das umfangsseitige Eindringen von Wasser in die Entwässerungsöffnung zu vermeiden, ist ein umlaufender Dichtsitz zwischen der Dichtklappe und dem Öffnungsrand der Entwässerungsöffnung vorgesehen. Bei einem Unterdruck im Karosseriehohlraum kann sich die Dichtklappe an den Öffnungsrand der Entwässerungsöffnung anlegen.The advantage achieved by the invention is that a single sealing flap is provided as the closure of the drainage opening, which completely and seamlessly covers the drainage opening in its closed position. A circumferential sealing seat is used to prevent water from getting into the drainage opening on the circumference provided between the sealing flap and the opening edge of the drainage opening. If there is negative pressure in the body cavity, the sealing flap can rest against the opening edge of the drainage opening.

Um eine besonders zuverlässig dichtende konstruktive Gestaltung der Dichtklappe zu ermöglichen, können Dichtelement und Dichtklappe als separate Teile ausgebildet sein, die sich zu einem Montageteil miteinander verbinden lassen. Dabei kann zur besonders einfachen Befestigung von der Breitseite der Dichtklappe ein Verankerungszapfen abragen, der in ein korrespondierendes Befestigungsloch des Dichtelements eingreift.In order to enable a particularly reliable sealing design of the sealing flap, the sealing element and sealing flap can be designed as separate parts that can be connected to one another to form an assembly part. For particularly simple fastening, an anchoring pin can protrude from the broad side of the sealing flap and engages in a corresponding fastening hole in the sealing element.

Um in der Durchlassstellung einen besonders großen Öffnungswinkel der Dichtklappe zu ermöglichen und dadurch ein Verstopfen der Entwässerungsöffnung zu vermeiden, kann der Verankerungszapfen von einem vorderen Endbereich der Dichtklappe abragen, wobei der Verankerungszapfen zur positionsgenauen Ausrichtung der Dichtklappe drehgesichert im Befestigungsloch des Dichtelements festgelegt ist.In order to enable a particularly large opening angle of the sealing flap in the open position and thereby avoid clogging of the drainage opening, the anchoring peg can protrude from a front end region of the sealing flap, the anchoring peg being secured in the fastening hole of the sealing element in a rotationally secured manner in order to precisely position the sealing flap.

Zur besonders zuverlässigen Abdichtung der Entwässerungsöffnung kann der Dichtsitz einen umlaufend von der Dichtklappe abstehenden Dichtschenkel und einen umlaufenden Dichtring des Dichtelements umfassen, der vom Öffnungsrand der Entwässerungsöffnung abragt, wobei der Dichtring des Dichtelements und der DichtSchenkel der Dichtklappe in der Geschlossenstellung konzentrisch verlaufen.For a particularly reliable sealing of the drainage opening, the sealing seat can comprise a sealing leg protruding all around from the sealing flap and a peripheral sealing ring of the sealing element which projects from the opening edge of the drainage opening, the sealing ring of the sealing element and the sealing leg of the sealing flap being concentric in the closed position.

Um eine besonders zuverlässige Entwässerung des Hohlraums zu gewährleisten kann das Dichtelement eine Entwässerungsöffnung mit mindestens zwei voneinander beabstandeten Teilöffnungen aufweisen. Zur besonders einfachen und zuverlässigen Abdichtung der Entwasserungsoffnung und des Befestigungslochs kann der Dichtsitz dabei kreisförmig ausgebildet sein und das Befestigungsloch sowie alle Teilöffnungen umschließen. Um ein Nachlassen der Dichtwirkung im Fahrbetrieb zu verhindern, kann der Verankerungszapfen von einem kreisförmigen Deckbereich der Dichtklappe abragen, der in Karosserielängsrichtung um einen sich trapezförmig verjüngenden Endbereich verlängert ist, so dass die Dichtklappe bei Beaufschlagung durch Fahrtwind an das Dichtelement gepresst würde.In order to ensure a particularly reliable drainage of the cavity, the sealing element can have a drainage opening with at least two partial openings spaced apart from one another. For particularly simple and reliable sealing of the drainage opening and the fastening hole, the sealing seat can be circular and enclose the fastening hole and all partial openings. In order to prevent the sealing effect from deteriorating during driving, the anchoring pin can protrude from a circular cover area of the sealing flap, which is extended in the longitudinal direction of the body by a trapezoidally tapering end area, so that the sealing flap would be pressed against the sealing element when exposed to the wind.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand einer zeichnerischen Darstellung näher erläutert.An exemplary embodiment of the invention is explained in more detail below with the aid of a drawing.

In der Darstellung zeigen:The illustration shows:

Fig. 1 ein Dichtelement einer Entwässerungsanordnung für einen Turschweller einer Kraftwagenkarosserie in einer Ansicht von unten,1 shows a sealing element of a drainage arrangement for a door sill of a motor vehicle body in a view from below,

Fig. 2 das Dichtelement in einer Ansicht von oben undFig. 2, the sealing element in a view from above and

Fig. 3 einen Schnitt durch das Dichtelement und den Lochrand eines Ablauflochs des Türschwellers gemäß der Linie III-III in Fig. 1.3 shows a section through the sealing element and the hole edge of a drain hole of the door sill according to line III-III in FIG. 1.

In Fig. 1 ist von einem seitlichen Turschweller 1 einer nicht näher dargestellten Kraftwagenkarosserie nur ein horizontal verlaufender Bodenbereich mit einem kreisförmigen Ablaufloch 2 dargestellt, in dem ein zugehöriges Dichtelement 3 angeordnet ist.In Fig. 1 of a side door sill 1 of a motor vehicle body, not shown in detail, only a horizontally extending floor area with a circular drain hole 2 is shown, in which an associated sealing element 3 is arranged.

Der Turschweller 1 ist in üblicher Schalenbauweise als etwa rechteckförmiges Hohlprofil ausgebildet und begrenzt einen inneren Hohlraum 4, der sich über seine gesamte Länge erstreckt. Zur Entwässerung des Hohlraums 4 können mehrere Ablauflöcher 2 über die Länge des Bodens verteilt angeordnet sein.The door sill 1 is designed in a conventional shell construction as an approximately rectangular hollow profile and delimits an inner cavity 4 which extends over its entire length. To drain the cavity 4, several drain holes 2 can be arranged distributed over the length of the floor.

In Verbindung mit Fig. 2 und Fig. 3 ist ersichtlich, dass das Dichtelement 3 einen hohlzylindrischen Verankerungsabschnitt 5 aufweist, welcher das Ablaufloch 2 durchsetzt und mit seinem freien Ende in den Hohlraum 4 des Türschwellers 1 hineinragt. Der Verankerungsabschnitt 5 des Dichtelements 3 ist an seinem Außenumfang umlaufend im Ablaufloch 2 abgestützt und weist zur axialen Befestigung drei radial abragende Halteschenkel 6 auf, die auf der hohlraumzugewandten Seite am Lochrand des Ablauflochs 2 anliegen. Um die Montage des Dichtelements 3 zu vereinfachen, sind die Halteschenkel 6 an ihren freien Enden jeweils mit einer Einführschräge versehen, die am freien Ende des Verankerungsabschnitts 5 zu einem schmalen, umlaufenden Kreisring verbunden sind.In connection with FIGS. 2 and 3 it can be seen that the sealing element 3 has a hollow cylindrical anchoring section 5, which penetrates the drain hole 2 and protrudes with its free end into the cavity 4 of the door sill 1. The anchoring section 5 of the sealing element 3 is supported on its outer circumference in the drain hole 2 and has three radially protruding retaining legs 6 for axial attachment, which rest on the side of the hole of the drain hole 2 on the side facing the cavity. In order to simplify the assembly of the sealing element 3, the holding legs 6 are each provided with an insertion bevel at their free ends, which are connected at the free end of the anchoring section 5 to form a narrow, circular ring.

In den Zwischenräumen zwischen einander benachbarten Halteschenkeln 6 ist der Umfang des Verankerungsabschnitts 5 mit jeweils einer rechteckförmigen Durchlassöffnung 7 versehen. Die insgesamt drei Durchlassöffnungen 7 sind dabei jeweils bis etwa auf die Höhe des Lochrands des Ablauflochs 2 heruntergezogen, um auch bei einem sehr geringen Wasserfüllstand im Hohlraum 4 eine Entwässerung zu ermöglichen.In the spaces between adjacent holding legs 6, the periphery of the anchoring section 5 is each provided with a rectangular passage opening 7. The total of three passage openings 7 are each pulled down to approximately the level of the hole edge of the drain hole 2 in order to enable drainage even in the case of a very low water level in the cavity 4.

Der Verankerungsabschnitt 5 schließt mit seiner Unterseite an eine horizontal verlaufende Deckplatte 8 des Dichtelements 3 an, wobei der Hohlquerschnitt des Verankerungsabschnitt 5 durch die Deckplatte 8 geschlossen ist. Der Deckplatte 8 weist einen tropfenförmigen Außenumfang auf, wobei die Breite der Deckplatte 8 sich in Längsrichtung des Fahrzeugs verjüngt. Vom Außenumfang der Deckplatte 8 ist umlaufend eine schmale Dichtlippe 9 abgewinkelt, die am Lochrand des Ablauf- lochs 2 anliegt. Das Dichtelement 3 mit seinem Verankerungsabschnitt 5 und seiner Deckplatte 8 ist einteilig aus einem gummielastischen Material hergestellt.The underside of the anchoring section 5 connects to a horizontally extending cover plate 8 of the sealing element 3, the hollow cross section of the anchoring section 5 being closed by the cover plate 8. The cover plate 8 has a teardrop-shaped outer circumference, the width of the cover plate 8 tapering in the longitudinal direction of the vehicle. A narrow sealing lip 9 is circumferentially angled from the outer circumference of the cover plate 8 and bears against the edge of the drain hole 2. The sealing element 3 with its anchoring section 5 and its cover plate 8 is made in one piece from a rubber-elastic material.

Im Überdeckungsbereich mit dem Hohlquerschnitt des Verankerungsabschnitts 5 weist die Deckplatte 8 des Dichtelements 3 eine Entwässerungsöffnung mit drei voneinander beabstandeten Teiloffnungen 10a, 10b und 10c auf, die jeweils etwa kreis- segmentfδrmig ausgebildet sind und zusammen ungefähr einen Dreiviertel-Kreis überdecken. Im dazu korrespondierenden vierten Kreissegment ist das Dichtelement 3 mit einem recht- eckförmigen Befestigungsloch 11 für eine Dichtklappe 12 versehen. Die drei Teilöffnungen 10a, 10b und 10c sowie das Befestigungsloch 11 sind vollständig von einem schmalen, kreisförmig umlaufenden Dichtring 14 umschlossen, der einteilig mit dem Dichtelement 3 ausgebildet ist und nach unten von der Deckplatte 8 absteht.In the area of overlap with the hollow cross section of the anchoring section 5, the cover plate 8 of the sealing element 3 has a drainage opening with three spaced apart partial openings 10a, 10b and 10c, each of which is approximately circular segment-shaped and together approximately one Cover three-quarter circle. In the corresponding fourth circle segment, the sealing element 3 is provided with a rectangular fastening hole 11 for a sealing flap 12. The three partial openings 10a, 10b and 10c and the fastening hole 11 are completely enclosed by a narrow, circular circumferential sealing ring 14, which is formed in one piece with the sealing element 3 and protrudes downward from the cover plate 8.

Durch die Aufgliederung der Entwässerungsöffnung in mehrere Teilöffnungen 10a, 10b und 10c, verbleiben zwischen den Teil- öffnungen 10a, 10b und 10c schmale Stege, durch welche der Bereich der Deckplatte 8 um das Befestigungsloch 11 ausgesteift wird.By dividing the drainage opening into a plurality of partial openings 10a, 10b and 10c, narrow webs remain between the partial openings 10a, 10b and 10c, by means of which the area of the cover plate 8 around the fastening hole 11 is stiffened.

Die Dichtklappe 12 ist als dünnwandige Gummiplatte ausgebildet, wobei von einem vorderen Randbereich der Patte ein Verankerungszapfen 13 abragt und das Befestigungsloch 11 des Dichtelements 3 durchsetzt. Der Verankerungszapfen 13 ist als Hohlzapfen mit rechteckformigem Außenumfang und kreisförmigem inneren Hohlquerschnitt ausgebildet. Der umlaufend im quadratischen Befestigungsloch 11 abgestützte Verankerungszapfen 13 ist an seinem stufenförmig verbreiterten freien Ende am Lochrand des Befestigungslochs 11 axial sichernd gehalten. Da der Verankerungszapfen 13 mit seinem Schaft passgenau in das Befestigungsloch 11 eingreift, ist die Dichtklappe 12 gegenüber der Deckplatte 8 in ihrer Sollposition gehalten. Um die Montage der Dichtklappe 12 am Befestigungslochs 11 des Dichtelements 3 zu vereinfachen, ist der Verankerungszapfens 13 an seinem freien Ende mit keilförmig angeordneten Einführschrägen versehen.The sealing flap 12 is designed as a thin-walled rubber plate, an anchoring pin 13 protruding from a front edge region of the flap and penetrating the fastening hole 11 of the sealing element 3. The anchoring pin 13 is designed as a hollow pin with a rectangular outer circumference and a circular inner hollow cross section. The anchoring pin 13, which is supported all around in the square fastening hole 11, is axially secured at its step-widened free end at the hole edge of the fastening hole 11. Since the anchoring pin 13 engages with its shaft in the fastening hole 11 with a precise fit, the sealing flap 12 is held in its desired position with respect to the cover plate 8. In order to simplify the assembly of the sealing flap 12 on the fastening hole 11 of the sealing element 3, the anchoring pin 13 is provided at its free end with wedge-shaped insertion bevels.

Die Dichtklappe 12 umfasst einen vorderen, kreisförmigen Deckbereich 15, der in Fahrzeuglängsrichtung um einen drei- eckförmigen Endbereich 16 verlängert ist. Vom Deckbereich 15 der Dichtklappe 12 ist umlaufend ein schmaler Dichtschenkel 17 abgewinkelt. Die Dichtklappe 12 samt Dichtschenkel 17 und Verankerungszapfen 13 ist einteilig aus einem gummielastischen Material hergestellt, das eine etwas geringere Härte als das Material des Dichtelements 3 aufweist.The sealing flap 12 comprises a front, circular cover area 15 which is extended by a triangular end area 16 in the longitudinal direction of the vehicle. A narrow sealing leg 17 is angled all around from the cover area 15 of the sealing flap 12. The sealing flap 12 together with the sealing leg 17 and Anchoring pin 13 is made in one piece from a rubber-elastic material that has a slightly lower hardness than the material of the sealing element 3.

In der gezeigten Geschlossenstellung liegt die Dichtklappe 12 mit ihrem Dichtschenkel 17 umlaufend dichtend an der Deckplatte 8 des Dichtelements 3 an, wobei alle Teilöffnungen 10a, 10b und 10c der Entwässerungsöffnung und das Befestigungsloch 11 nach unten hin vollständig von der Dichtklappe 12 überdeckt und vom Dichtschenkel 17 umschlossen sind. Der Deckbereich 15 der Dichtklappe 12 liegt dabei am Dichtring 14 des Dichtelements 3 an, wobei Dichtring 14 und Dichtschenkel 17 konzentrisch angeordnet sind.In the closed position shown, the sealing flap 12 rests with its sealing leg 17 in a circumferential sealing manner on the cover plate 8 of the sealing element 3, all partial openings 10a, 10b and 10c of the drainage opening and the fastening hole 11 being completely covered at the bottom by the sealing flap 12 and by the sealing leg 17 are enclosed. The cover region 15 of the sealing flap 12 lies against the sealing ring 14 of the sealing element 3, the sealing ring 14 and sealing leg 17 being arranged concentrically.

Der Endbereich 16 der Dichtklappe 12 liegt in der Geschlossenstellung auf zwei schmalen Rippen auf, die im hinteren Bereich von der Deckplatte 8 des Dichtelements 3 abragen. In ihrer Geschlossenstellung liegt die Dichtklappe 12 somit insgesamt nur linienformig am Dichtelement 3 an, wodurch ein Festkleben bzw. Aufhalten der Dichtklappe 12 aufgrund von Kälte oder Schmutz weitgehend vermieden werden kann. Die Dichtklappe 12 überdeckt in ihrer Geschlossenstellung einen erhabenen mittleren Flächenbereich der Deckplatte 8 des Dichtelements 3 und ist besonders geschützt von abgesenkten äußeren Wandbereichen des Dichtelements 3 umschlossen.In the closed position, the end region 16 of the sealing flap 12 lies on two narrow ribs which protrude from the cover plate 8 of the sealing element 3 in the rear region. In its closed position, the sealing flap 12 is therefore only in a linear form against the sealing element 3, as a result of which sticking or stopping of the sealing flap 12 due to cold or dirt can largely be avoided. In its closed position, the sealing flap 12 covers a raised central surface area of the cover plate 8 of the sealing element 3 and is enclosed in a particularly protected manner by lowered outer wall areas of the sealing element 3.

Bei der Montage wird die Dichtklappe 12 zunächst mit ihrem Verankerungszapfen 13 im Befestigungsloch 11 des Dichtelements 3 vormontiert und anschließend wird das Dichtelement 3 samt Dichtklappe 12 in das zugehörige Ablaufloch 2 des Tür- schwellers 1 eingesetzt. Um das Ausrichten des Dichtelements 3 zu vereinfachen, weist die Dichtklappe 12 an ihrer Unterseite eine pfeilförmige Markierung 18 auf. Das Dichtelement 3 wird dabei so im Ablaufloch 2 ausgerichtet, dass die Markierung 18 in Fahrtrichtung des Wagens, d. h. in entgegengesetzte Fahrzeuglängsrichtung weist. Aufgrund der besonderen Formgebung der Dichtklappe 12 mit dem Endbereich 16 und ihrer Befestigung über den in einem vorderen Längenbereich der Dichtklappe 12 angeordneten Verankerungszapfen 13 wird die Dichtklappe 12 durch den Fahrtwind in Richtung ihrer Geschlossenstellung beaufschlagt .During assembly, the sealing flap 12 is first preassembled with its anchoring pin 13 in the fastening hole 11 of the sealing element 3 and then the sealing element 3 together with the sealing flap 12 is inserted into the associated drain hole 2 of the door sill 1. In order to simplify the alignment of the sealing element 3, the sealing flap 12 has an arrow-shaped marking 18 on its underside. The sealing element 3 is aligned in the drain hole 2 such that the marking 18 points in the direction of travel of the car, ie in the opposite longitudinal direction of the vehicle. Due to the special shape of the sealing flap 12 with the end region 16 and its fastening via the anchoring pins 13 arranged in a front length region of the sealing flap 12, the sealing flap 12 is acted upon by the airstream in the direction of its closed position.

Der vom Turschweller 1 begrenzte Hohlraum 4 steht derart in Verbindung mit dem Innenraum des Fahrzeugs, dass ein Unterdruck im Fahrzeuginnenraum zu einem Unterdruck im Hohlraum 4 führen würde. Infolge dieses Unterdrucks würde die Dichtklappe 12 ebenfalls in Richtung Geschlossenstellung beaufschlagt und würde am Dichtelement 3 zur Anlage kommen.The cavity 4 delimited by the door sill 1 is connected to the interior of the vehicle in such a way that a negative pressure in the vehicle interior would lead to a negative pressure in the cavity 4. As a result of this negative pressure, the sealing flap 12 would also be acted on in the direction of the closed position and would come into contact with the sealing element 3.

Eine Entwässerung des Türschwellers 1 wird in der Regel bei stehendem Fahrzeug erfolgen. Dabei würde im Hohlraum 4 des Türschwellers 1 angesammeltes Wasser zunächst über die Durchlassöffnungen 7 in den Hohlquerschnitt des Dichtelements 3 eintreten. Infolge der Druckbeaufschlagung durch das .Wasser würde die Dichtklappe 12 in ihrer abgesenkte Durchlassstellung abgebogen und zumindest mit dem Endbereich 16 sowie einem hinteren Teil ihres Deckbereichs 15 von der Deckplatte 8 des Dichtelements 3 abheben. Somit würde das Wasser über die Teilöffnungen 10a, 10b und 10c der Entwässerungsöffnung in die Umgebung ablaufen.The door sill 1 is usually drained when the vehicle is stationary. In this case, water accumulated in the cavity 4 of the door sill 1 would first enter the hollow cross section of the sealing element 3 via the passage openings 7. As a result of pressurization by the . Water would bend the sealing flap 12 in its lowered passage position and lift it off at least with the end region 16 and a rear part of its cover region 15 from the cover plate 8 of the sealing element 3. The water would thus drain into the surroundings via the partial openings 10a, 10b and 10c of the drainage opening.

Der Turschweller 1 kann an seinem Boden vom einem üblichen und daher nicht gezeigten Verkleidungsteil überdeckt sein. Dabei könnte das Wasser über die Teilöffnungen 10a, 10b und 10c zunächst in einen Zwischenraum zwischen Turschweller 1 und Verkleidungsteil ablaufen und von dort über seitliche Öffnungen des Verkleidungsteils in die Umgebung austreten. The door sill 1 can be covered on its bottom by a conventional and therefore not shown trim part. The water could initially run through the partial openings 10a, 10b and 10c into an intermediate space between the door sill 1 and the cladding part and from there through lateral openings of the cladding part into the environment.

Claims

Patentansprüche claims 1. Entwässerungsanordnung für einen Karosseriehohlraum mit mindestens einem Ablaufloch in der Karosserie, in dem ein zugehöriges Dichtelement umfangsseitig dichtend gehalten ist, mit einer Überdeckung zwischen dem Ablaufloch in der Karosserie und einer zum Ablaufloch etwa parallelen Entwässerungs- öffnung des Dichtelements und mit einem elastisch deformierbaren Verschluss zur Abdichtung der Entwässerungsöffnung, der bei Druckbeaufschlagung durch im Hohlraum angesammeltes Wasser in eine Durchlassstellung überführt ist, d a d u r c h g e k e n n z e i c h n e t , dass als Verschluss der Entwässerungsöffnung (Teilöffnungen 10a, 10b, 10c) eine einzige Dichtklappe (12) vorgesehen ist, die in ihrer Geschlossenstellung die Entwässerungsöffnung (Teilöffnungen 10a, 10b, 10c) des Dichtelements (3) vollständig überdeckt, wobei zwischen dem Öffnungsrand und der Dichtklappe (12) ein umlaufender Dichtsitz (Dichtring 14, Dichtschenkel 17) vorgesehen ist.1. Drainage arrangement for a body cavity with at least one drain hole in the body, in which an associated sealing element is held sealingly on the circumference, with an overlap between the drain hole in the body and an approximately parallel drain hole of the sealing element and with an elastically deformable closure For sealing the drainage opening, which is transferred into a passage position when pressurized by water collected in the cavity, characterized in that a single sealing flap (12) is provided as the closure of the drainage opening (partial openings 10a, 10b, 10c), which in its closed position has the drainage opening ( Partial openings 10a, 10b, 10c) of the sealing element (3) are completely covered, a circumferential sealing seat (sealing ring 14, sealing leg 17) being provided between the opening edge and the sealing flap (12). 2. Entwässerungsanordnung nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass das Dichtelement (3) und die Dichtklappe (12) als separate Teile ausgebildet und zu einem Montageteil miteinander verbunden sind.2. Drainage arrangement according to claim 1, so that the sealing element (3) and the sealing flap (12) are formed as separate parts and are connected to one another to form an assembly part. 3. Entwässerungsanordnung nach Anspruch 2 , d a d u r c h g e k e n n z e i c h n e t , dass von einer Breitseite der Dichtklappe (12) ein Verankerungszapfen (13) abragt, der in ein korrespondierendes Befestigungsloch (11) des Dichtelements (3) eingreift.3. Drainage arrangement according to claim 2, so that an anchoring pin (13) projects from a broad side of the sealing flap (12) and engages in a corresponding fastening hole (11) of the sealing element (3). 4. Entwässerungsanordnung nach Anspruch 3, d a d u r c h g e k e n n z e i c h n e t , dass der Verankerungszapfen (13) von einem Endbereich der Dichtklappe (12) abragt, wobei der Verankerungszapfen (13) drehgesichert im Befestigungsloch (11) des Dichtelements (3) festgelegt ist.4. drainage arrangement according to claim 3, characterized in that the anchoring pin (13) protrudes from an end region of the sealing flap (12), the anchoring pin (13) being secured against rotation in the fastening hole (11) of the sealing element (3). 5. Entwässerungsanordnung nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass der Dichtsitz einen umlaufend von der Dichtklappe (12) abstehenden Dichtschenkel (17) umfasst.5. The drainage arrangement as claimed in claim 1, so that the sealing seat comprises a sealing leg (17) which extends all the way around from the sealing flap (12). 6. Entwässerungsanordnung nach Anspruch 5 ,- d a d u r c h g e k e n n z e i c h n e t , dass der Dichtsitz einen umlaufenden Dichtring (14) des Dichtelements (3) umfasst, der vom Öffnungsrand der Entwässerungsöffnung (Teiloffnungen 10a, 10b , 10c) abragt, wobei der Dichtring (14) des Dichtelements (3) und der Dichtschenkel (17) der Dichtklappe (12) in der Geschlossenstellung konzentrisch verlaufen.6. Drainage arrangement according to claim 5, characterized in that the sealing seat comprises a circumferential sealing ring (14) of the sealing element (3) which projects from the opening edge of the drainage opening (partial openings 10a, 10b, 10c), the sealing ring (14) of the sealing element ( 3) and the sealing leg (17) of the sealing flap (12) run concentrically in the closed position. 7. Entwässerungsanordnung nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass das Dichtelement (3) eine Entwässerungsöffnung mit mindestens zwei voneinander beabstandeten Teiloffnungen (10a, 10b, 10c) aufweist.7. Drainage arrangement according to claim 1, so that the sealing element (3) has a drainage opening with at least two spaced apart partial openings (10a, 10b, 10c). 8. Entwässerungsanordnung nach Anspruch 3 und 7 , d a d u r c h g e k e n n z e i c h n e t , dass der Dichtsitz (Dichtring 14, Dichtschenkel 17) kreisförmig ausgebildet ist, wobei alle Teilöffnungen (10a, 10b, 10c) der Entwässerungsöffnung und das Befestigungsloch (11) des Dichtelements (3) vom Dichtsitz (Dichtring 14, Dichtschenkel 17) umgeben sind.8. Drainage arrangement according to claim 3 and 7, characterized in that the sealing seat (sealing ring 14, sealing leg 17) is circular, with all partial openings (10a, 10b, 10c) of the drainage opening and the fastening hole (11) of the sealing element (3) from the sealing seat (Sealing ring 14, sealing leg 17) are surrounded. 9. Entwässerungsanordnung nach Anspruch 8 , d a d u r c h g e k e n n z e i c h n e t , dass der Verankerungszapfen (13) von einem kreisförmigen Deckbereich (15) der Dichtklappe (12) abragt, der in Karos- serielängsrichtung um einen sich trapezförmig verjüngenden Endbereich (16 ) verlängert ist . 9. Drainage arrangement according to claim 8, characterized in that the anchoring pin (13) protrudes from a circular cover region (15) of the sealing flap (12) which The longitudinal direction is extended by a trapezoidally tapering end region (16).
PCT/EP2003/013865 2003-02-28 2003-12-06 Water drainage system for a car body cavity Ceased WO2004076239A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004568666A JP2006513908A (en) 2003-02-28 2003-12-06 Drainage device for body cavity
EP03789162A EP1597115A1 (en) 2003-02-28 2003-12-06 Water drainage system for a car body cavity

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DE10308669.2 2003-02-28
DE2003108669 DE10308669B4 (en) 2003-02-28 2003-02-28 Drainage arrangement for a body cavity

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WO2006134477A3 (en) * 2005-06-14 2007-04-05 Itw Automotive Prod Gmbh & Co A valve for automobile bodies
WO2007093862A1 (en) * 2006-02-16 2007-08-23 Itw Automotive Products Gmbh & Co. Kg A sealing plug with a pressure-compensating chamber
WO2009037536A3 (en) * 2007-09-18 2009-05-22 Itw Automotive Prod Gmbh & Co A drain spout
FR2930225A1 (en) * 2008-04-22 2009-10-23 Peugeot Citroen Automobiles Sa WATER RECOVERY ASSEMBLY FROM A WINDSHIELD AND AN AWNING GRID OF A MOTOR VEHICLE
DE102009026222A1 (en) 2009-07-22 2011-02-17 Woco Industrietechnik Gmbh Valve arrangement for temporarily locking of opening formed in body component of vehicle, has standard device of sealing surface that is disposed relative to main symmetry axis or to another main symmetry axis in valve element
CN111746428A (en) * 2020-07-08 2020-10-09 东风柳州汽车有限公司 Car side door drainage mechanism
CN112776896A (en) * 2021-01-07 2021-05-11 东风柳州汽车有限公司 Channel structure and car in automobile body
CN114087360A (en) * 2021-10-18 2022-02-25 东风汽车集团股份有限公司 A plugging device and parts

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DE102010055637B4 (en) 2010-12-22 2019-04-18 Volkswagen Ag Water drain valve
DE102012013731A1 (en) * 2012-07-11 2014-01-16 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Water drain valve for the water tank of a motor vehicle
JP6008922B2 (en) * 2014-10-23 2016-10-19 本田技研工業株式会社 Cap member
DE102017100793A1 (en) 2017-01-17 2018-07-19 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Water drainage arrangement in a convertible top compartment of a convertible vehicle
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WO2006134477A3 (en) * 2005-06-14 2007-04-05 Itw Automotive Prod Gmbh & Co A valve for automobile bodies
WO2007093862A1 (en) * 2006-02-16 2007-08-23 Itw Automotive Products Gmbh & Co. Kg A sealing plug with a pressure-compensating chamber
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WO2009037536A3 (en) * 2007-09-18 2009-05-22 Itw Automotive Prod Gmbh & Co A drain spout
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DE102009026222A1 (en) 2009-07-22 2011-02-17 Woco Industrietechnik Gmbh Valve arrangement for temporarily locking of opening formed in body component of vehicle, has standard device of sealing surface that is disposed relative to main symmetry axis or to another main symmetry axis in valve element
DE102009026222B4 (en) * 2009-07-22 2014-01-23 Woco Industrietechnik Gmbh valve assembly
CN111746428A (en) * 2020-07-08 2020-10-09 东风柳州汽车有限公司 Car side door drainage mechanism
CN112776896A (en) * 2021-01-07 2021-05-11 东风柳州汽车有限公司 Channel structure and car in automobile body
CN114087360A (en) * 2021-10-18 2022-02-25 东风汽车集团股份有限公司 A plugging device and parts

Also Published As

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CN1756679A (en) 2006-04-05
JP2006513908A (en) 2006-04-27
DE10308669A1 (en) 2004-09-16
DE10308669B4 (en) 2006-06-08
EP1597115A1 (en) 2005-11-23

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