WO2008110232A1

WO2008110232A1 - Sealing system

Info

Publication number: WO2008110232A1
Application number: PCT/EP2008/000564
Authority: WO
Inventors: Martin Gentemann
Original assignee: Meteor Gummiwerke K.H. Bädje GmbH & Co. KG
Priority date: 2007-03-15
Filing date: 2008-01-25
Publication date: 2008-09-18
Also published as: EP2117866A1; DE202007003836U1

Abstract

The invention relates to a sealing system which is designed to border a window (11) that is movably arranged between an open and a closed position along a curve of rotation. The sealing system consists of a fastening section adapted to be fastened to parts of the body of a vehicle door and a sealing section which comprises a sealing profile (16) that forms three interspaced sealing zones opposite the window (11) when the latter is closed, said sealing zones extending one after the other from an exterior (7) towards an interior (8). The sealing zones accommodate hollow spaces that are delimited in the peripheral direction by the facing surface of the window (11) and by a wall section (24) of a hollow profile (17) of the sealing section. The invention provides a sealing system which has a simple design and which has a good sealing effect owing to the serial arrangement of three sealing zones along the wall section (24) of the hollow profile.

Description

DESCRIPTION

Dichtunqsanordnung

The invention relates to a sealing arrangement according to the preamble of claim 1.

Sealing arrangements for the window region of vehicles, for stationary and moving disks exist in many forms. With regard to the developed sealing effect, these are able to cope with the regular stresses arising from vehicle operation and, accordingly, in particular prevent the passage of water from the exterior to an interior area. Moreover, the sealing arrangements should be easy to produce, have stable properties over time, in particular have an unchanged resilience after previous deformation and be connectable to body parts in a reliable and simple manner. As far as they are directly exposed to the weather, they should also be resistant to their influences.

Changes in this characteristic stress profile are now caused by the increased use of non-contact high pressure washing systems for vehicles, which thus eliminates direct contact between vehicle parts and rotating brush assemblies or the like. This leads to a locally significantly increased stress on the seal assemblies, which in accordance with the pressure applied to them can not reliably prevent water penetration in all cases. This phenomenon is particularly, but not exclusively, the case with rimless moving discs used in folding or hinged covers of all kinds.

US Pat. No. 4,919,471 discloses a seal arrangement for the frameless pane of a vehicle door, in which two spaced-apart sealing lips abut against it in the closed state along the boundary of the pane, wherein between these a cavity is formed, which is bounded on the one hand by the facing surface of the disc and on the other hand by facing surfaces of the seal assembly. Through this cavity, a conduit is arranged, which is intended to receive from the outside penetrating water, which has overcome the sealing region of the first seen from the outside first sealing lip, and then supply an orderly disposal.

A similar sealing arrangement, which has two successive sealing regions and is intended to interact with a frameless pane of a vehicle door, is known from US Pat. No. 5,101,598. One of the two sealing areas is formed by a large contact surface of the disc on a hollow sealing profile, while the second, with respect to the first inside sealing area is represented by a sealing rib. In this case, and equally in the case of

US 4,919,471, the sealing profile is characterized by a comparatively thick-walled guide wall which extends approximately parallel to a Eindrehkurve the disc, thus exerts a guiding function and beyond a supporting function on the, the disc facing sealing structures. As a Eindrehkurve is referred to in this context, a curve along which the disc moves during an open or close the vehicle door.

Finally, from US 2005/0279027 a further sealing arrangement is known, which is intended for use in a frameless, displaceable pane of a vehicle and in which two, spaced-apart sealing areas are used. A first sealing area is formed by the wall of a hollow profile, which in the closed state of the disc sealingly surrounds its boundary, whereas the second sealing area is formed by a sealing lip which also lies sealingly against the surface of the disc under elastic deflection. All of the three sealing arrangements described above are characterized by retaining profiles which are to be connected to body parts and in which they are fixed in a form-fitting manner.

The use of such sealing profiles can be problematic in individual cases in the use of non-contact pressure washing systems insofar as a water passage from the outside to the inside, thus can not always be prevented by the penetration of two successive sealing areas. This applies to high-pressure washing systems and equally when exposed to high-pressure water from manually operated high pressure guns.

DE 693 10 691 T2 discloses a sealing arrangement characterized in the closed state of the pane of a vehicle door by three sealing arrangements which follow one another in succession from the outside inwards and are spaced apart from one another. The sealing areas are formed by a concern of parts of the sealing portion of the seal assembly at the edge of the disc. The sealing portion shows two independently to be fastened to the vehicle body, spaced from each other by a gap sealing profiles, one of which is intended for connection to a vacuum source, so that over a developed between two sealing regions of a sealing profile vacuum, a holding force on the disc is exercisable. In particular, due to the two-part design of the sealing section results in a relatively complicated montagemä- lar handling. Added to this is the problem that under pressure

Water, which has overcome the first outer sealing region, can penetrate through said gap in the structure of the body.

From JP 58214411 A, a further sealing arrangement is known in which, in the closed state of the pane between this and a sealing section, there are three sealing regions which follow each other from outside to inside. The sealing portion is formed by an attachment portion about an axis at a fastening portion intended to be screwed to the body characterized pivotally hinged structure, on whose, the disk facing side two spaced-apart hollow profiles and a sealing lip are formed, each forming one of the three sealing regions. Here, too, results in a comparatively complicated structure, wherein the achievable sealing effect additionally depends on the fixation of the pivotally arranged structure relative to the attachment portion.

It is against this background, the object of the invention to design a seal assembly of the type mentioned in a simple manner with regard to an increased sealing effect, especially in the event of exposure to high pressure water of a car wash. In particular, but not exclusively intended here is sealing arrangements, which are intended to interact with frameless windows of a motor vehicle door. This object is achieved with such a sealing arrangement by the features of the characterizing part of claim 1.

There are at least three, in the direction of an outer side to an inner side with spaced-apart, successive and mutually independent sealing regions are provided, which are arranged between the boundary of the disc and a sealing profile. Water impinging on the outside under high pressure experiences a continued pressure reduction through these sealing regions, so that in the event of a passage through two sealing regions, the water is retained at least before the last sealing region. The sealing profile of the seal assembly may consist of elastomers z. For example, from sponge rubber, soft rubber such as EPDM (ethylene / propylene-diene terpolymers), SBR (styrene-butadiene rubber), CR (chloroprene rubber), elastomer blends based on EPDM, SBR, Polyoctenameren, NBR (acrylonitrile Butadiene rubber), thermoplastic elastomers such as SEB-S (styrene / ethylene / butadiene / styrene block copolymers), SBS (styrene / butadiene / styrene triblock copolymers), SIS (styrene / isoprene / styrene triblock copolymers ), made of elastomer alloys, etc. It may be advantageous, for example by way of extrusion or else be produced as a molded part or in combination as a sealing frame. A trained in this sense seal assembly has a high sealing effect, which has grown especially the stresses of a non-contact high pressure washing system. The sealing regions are inventively formed along the wall of a hollow profile, so that are formed between these cavities. A hollow profile opens by constructive measures in conjunction with the properties of the selected material optimal options for adjusting the elastic properties of the sealing area. This relates to a uniform contact pressure in the region of sealing surfaces, but a uniform resilience after a previous elastic deformation. Added to this are favorable damping properties of a hollow profile formed from elastomeric materials.

The features of claim 2 are directed to an embodiment, in particular the use of said sealing regions. By providing between these cavities, water which has overcome a sealing area, can be accommodated in such a cavity and then fed to an orderly disposal. Three successive sealing areas thus result in two cavities, each of which is available for disposing of absorbed water.

According to the features of claim 3, the sealing regions arrive one after the other in a system on the disk during the pivoting of the vehicle door along its driving-in curve. The pivotal movement of the vehicle door is thus hardly hindered by this arrangement.

Two spaced mounting portions according to the features of claim 4 form a reliable, local excessive stresses avoiding attachment of the sealing profile to body parts. Sealing areas can be formed according to the features of claim 5, for example by sealing lips. However, also webs or even planar, suitable for performing a sealing function structures come into consideration. The features of claim 6 are directed to a possible embodiment of the sealing regions representing wall portion of the hollow section. This has a globally S-shaped shape, of which a portion is directly used for performing a sealing function in that he - due to its shape and its location along the Eindrehkurve - sealingly surrounds the facing end portion of the disc.

The features of claims 7 and 8 are directed to the configuration of a mounting region of the sealing profile. This is designed as a U-shaped clip-on profile, whose assembly is thus extremely simple. It may be provided for permanent securing his seat with a reinforcement preferably metallic type consisting for example of steel or aluminum. However, it is also possible to use a plastic insert, which consists for example of TPE.

The Wandungsdickenbemessung of the hollow section according to the features of claim 9 illustrates that of the not used to represent a sealing function, relatively thick sized wall sections assume a support function, so that a defined contact pressure can be provided at the sealing areas.

The features of claim 10 illustrate the location of the sealing profile on the body parts serving for its attachment. In particular, hereinafter may be an outer, formed with respect to the inside of the vehicle structure visible surface coated with a decorative effective coating in the form of a paint.

The features of claims 11 and 12 are directed to the formation of a further mounting area. The advantage here is the orientation of the two Wall sections of the hollow section and the holding web relative to each other. After in the closed state of the vehicle door of the sealing areas bearing wall portion of the hollow section between the facing side of the disc and, the receiving profile performing KarosserieteH is elastically braced, learns due to these circumstances, the holding web a einpressende this in the receiving profile force, which also in this area the sealing effect is further improved.

The sealing profile according to the invention has the advantage of a simple structure, in conjunction with low reject rates in manufacturing processes and a simple, economically feasible assembly. It can be used with frameless windows, but also with other panes, wherever it comes to providing an improved sealing effect.

The invention will be explained in more detail below on the reproduced in the drawings embodiment. Show it:

1 shows a cross-sectional view of an embodiment of a sealing arrangement in the partially opened state of a motor vehicle door which can be assigned to the prior art;

FIG. 2 shows a representation corresponding to FIG. 1 of the sealing arrangement according to FIG. 1 in the closed position of the motor vehicle door; FIG.

3 shows an embodiment of an embodiment according to the invention of a sealing arrangement in the partially open position of a motor vehicle door;

4 to 6 are representations of successive phases of movement starting from the partial opening position shown in FIG. 3 up to the complete closed position of the motor vehicle door shown in FIG. 6; Fig. 7 is a partial representation of the boundary of the front vehicle door with inventive seal assembly in a side view.

Reference will first be made below to FIGS. 1 and 2, which show an example of a prior art, to be attached to the B-pillar of a motor vehicle structure, to cooperate with the front motor vehicle door, in particular their frameless disc 11 certain sealing arrangement, reference taken.

This seal assembly consists of a sealing profile 1, which has two adjoining hollow sections 2, 3, wherein on the latter hollow section 3, a holding web 4 is formed, which is inserted in the assembled state in a U-shaped receptacle 5 of a body part 6 sealing.

The holding web 4 is located on the, an outer side 7 of the vehicle structure facing side of the hollow section 3, wherein at the, the inside 8 facing side of the sealing profile 1 is an edge profile 9, which inter alia, a U-shaped slip-9 ^' , the intended for attachment to a body part 10. Incidentally, the edge profile 9 is mainly used for decorative and decorative purposes. The sealing profile 1 thus has two mounting areas, which are represented by the attachment profile 9 ^' and by the retaining web 4.

The body panel 10 is connected in a manner not shown with the body part 6 in connection with the inner side 8 facing end portion 10 ^' extends approximately parallel to a ground plane of the outer wall of the vehicle. The one wall 2 ^'of the hollow section 2 forms the one leg of the Aufsteckprofiles 9 ^' and is located on the side facing the end portion 10 ^' .

Fig. 1 shows the disc 11 in the partial opening state of the door, in which the outer edge 15 has no contact with the associated wall 12 of the hollow section 3. The latter hollow section is on his, the disc 11th facing side characterized by a comparatively thin-walled portion 12 which is bounded in the circumferential direction by two notch or weakening points 13, 14. In particular, the walls of the hollow profile 2 are formed significantly thick-walled and have a correspondingly greater rigidity. They are thus created to perform a support function.

A continued from the state shown in Fig. 1 continued closure of the vehicle door finally leads to a contact of the edge 15 of the disc 11 and thus to a buckling of the wall 12 - favored by the two notch points 13, 14. The closed state shown in Fig. 2 the vehicle door is thus characterized by a sealing contact of the wall 12 of the hollow section 3 in the region of the edge 15 of the disc 11. Reaction forces caused by the elastic deformation of the hollow profile 3 are partly absorbed by the body panel 10 and to another part by the receptacle 5.

Sealing profiles of the type shown in Figs. 1 and 2 have proven in principle basically. In particular, a reliable seal can be achieved under normal operating conditions in the region of the edge 15. Problems can arise, however, if one with such

Cartridge equipped vehicle is subjected to a treatment in a non-contact high pressure washing system. In these cases, it may be due to high pressure to such local deformations of the wall 12 that a reliable seal in the region of the edge 15 is no longer guaranteed, so that a water passage in the direction of the inside 8 can not be reliably prevented.

In order to improve a seal in the region of the edge 15 of the disk 11, reference is made below to the drawing of FIG. 3, which shows a motor vehicle door in a partially closed state in partial representation, specifically in the region of a sealing arrangement 16 according to the invention. Such a seal assembly 16 is - as Fig. 7 shows - for example, application in the area of the border 32 of a vehicle door, here in the area of the B-pillar.

The seal assembly 16 is characterized by a first hollow section 17, on whose one, in turn the outer side 7 facing side a holding web 4 is formed. This is plugged into a U-shaped receptacle 5 of a body part 6, which forms part of the B-pillar of a motor vehicle structure. With a body panel 18 is designated, the, the inner side 8 of the vehicle structure facing free end extends approximately parallel to an outer wall of the vehicle structure and on its, the outer side 7 facing side for conditioning of the facing Wandungsabschnitts 17 ^'of the hollow section 17 is determined.

19 with an edge profile is referred to, which extends to the, the inside 8 facing side of the hollow section 17. At this edge profile 19, a U-shaped Aufsteckprofil 19 ^'is formed, one leg of which is formed by the wall portion 17 ^{' of} the hollow section 17 and the other leg 20 has an end portion 20 ^' , under elastic bias on the, the inner side 8 facing side of the body panel 18 is applied.

By mounting profile 19 ^' and the support web 4 thus two spaced mounting portions are formed, which communicate with each other over the wall portion 17 ^"of the hollow section 17 and form a mounting portion for the sealing profile 16. It can be seen that the attachment profile 19 ^' and the Receiving 5 extend approximately parallel to the body part 6.

At 21, a hollow profile is referred to, which is located between the edge web 19 and the attachment profile 19 ^' . The edge web 19 rests with its outermost edge region 22 on a further body part 23, which also forms part of the B pillar of the vehicle structure. The, the outer side 7 and the disc 11 facing wall portion 24 of the hollow section 17 is formed comparatively thin-walled and has in the, in Fig. 3, relaxed state on a global S-shaped configuration.

The S-shaped winding structure of Wandungsabschnitts 24 extends between an edge 25 of the body part 6 and a point 26 of the circumference of the hollow profile 17, on which a sealing lip 27 is formed, which extends outside with respect to the hollow profile 17. The wall section 24 is initially marked, starting from the edge 25, by a convex section 24 ^' , followed by a concave section 24 ^", both sections 24 ^' , 24 ^" having a substantially equal length, with an approximately central section Region another sealing lip 28 is formed, which also extends on the outside of the Wandungsab- section 24. The wall section 24 thus forms the sealing section of the sealing profile 16.

Fig. 3 shows a state of the sealing arrangement in which between the disc 11 and the hollow profile 17 is no contact, so that the latter, in particular the wall portion 24 is in a relaxed state. The sealing profile 16 is fixed in its spatial position on the one hand by the recess 5, in particular the edge 25 and on the other hand by the body panel 18, on which it rests on both sides. A starting from the state shown in Fig. 3 continued pivoting of the vehicle door, which takes place along a Eindrehkurve 29 leads, according to FIG. 4 initially to a concern of the inside of the disc 11 on the sealing lip 27, which undergoes an elastic deformation in the sequence.

The subsequent movement phase shown in FIG. 5 is characterized in that, in addition to the sealing lip 27, it has also come to a first contact with the sealing lip 28 in the region of the edge 15 of the disk 11. The S-shape of section 24 is shown in this Movement phase of the vehicle door is still no significant deviations from an unloaded, shown in Fig. 3 state.

It can be seen that in the movement phase between the sealing lips 27, 28 and the disk 11 shown in FIG. 5, a cavity 30 has been formed. As a result of the elongated shape of the sealing lip 27, which extends approximately parallel to the wall section 24 ^" , this cavity 30 has a formation 33 oriented in the direction of the inner side 8. When the cavity 30 is pressurized internally, a pressure occurs in accordance with this pressure In the state shown in Fig. 6, the vehicle door has reached its closed position, thus at the end of the Eindrehkurve 29. This condition is characterized inter alia in that the edge 15 3 has been moved towards the inner side 8 and at the same time in the direction of the edge 25 of the body part 6. In this case, the sealing lip 28 slides over the facing surface of the disc 11 in the direction the sealing lip 27 out, where it is rounded off to a plant of formed end portion 11 'at the portion 24' comes, which is compressed between the end portion 11 'and the edge 25, so that it comes to forming a sealing abutment of the portion 24' at said end portion. In this closed state, the disc 11 and the body part 6 are located approximately in a common plane.

Applied to the above-outlined problem, namely an improvement of the sealing effect against external exposure to high pressure washing water a car wash, this means that - seen along the surface of the disc 11 - starting from the outside 7 to the inside 8 three consecutive There are sealing regions, namely a first, between the apex of the end portion 11 'and the portion 24', a second, from the first objected, by the voltage applied to the surface of the disc 11 sealing lip 28 and a third, in turn from the second spaced, represented by the voltage applied to the surface of the disc 11 sealing lip 27.

The pressure of the impinging washing water, which if necessary surmounting the first of the three sealing regions under pressure loss, is retained by the second sealing region, namely the sealing lip 28, in any case, in the event that this sealing region is also overcome under further pressure loss, the third sealing region forms a reliable obstacle to the passage of water towards the inside 8. In a manner not shown in the drawing, the cavity 30 and another, possibly between the sealing areas and formed further cavity can be connected to drainage conduits, by which an orderly discharge of the water which may have penetrated into these cavities is ensured.

To permanently secure a uniformly tight fit of the

Aufsteckprofiles 19 ^' on the body panel 18, this profile may be equipped with a likewise U-shaped, not graphically represented reinforcement profile, consisting for example of a metal such as steel, aluminum or a plastic such. B. TPE. In this way, a constant bias between the attachment profile 19 ^' and the body panel 18 is ensured. However, a comparable effect can also be achieved by a suitable choice of material in conjunction with a dimensioning of this attachment profile 19 ^' .

Also not shown in the drawing is a coating of the surface 31 of the sealing profile 16 facing the inside 8. This surface coating may be in the form of a coating with an antifriction coating, for example based on silicone or resin, a flock or another decorative material, for example Plastic existing, a textile-like textured surface impression mediating coating present.

Claims

1. Sealing arrangement for the boundary of a between an open and a closed position relative to a sealing profile (16) along a Eindrehkurve (29) movable disc (11) of a vehicle, wherein the sealing profile (16) at least one for attachment to parts of the body the vehicle equipped mounting portion and a certain interaction with said boundary seal portion is made, wherein in the closed position of the

Disc (11) between the boundary and the sealing portion at least three, in the direction of an outer side (7) to an inner side (8) of the body successive, spaced-apart sealing regions are formed, and wherein between the sealing areas each respective cavities (30) located, which are bounded by the facing surface of the boundary of the disc (11) and parts of the sealing portion, characterized in that the sealing regions along a Wandungsabschnitts (24) of a hollow profile (17) of the sealing portion are formed.

2. Sealing arrangement according to claim 1, characterized in that each of the cavities (30) with a, an orderly disposal of penetrating water enabling conduit is in communication.

3. Sealing arrangement according to claim 1 or 2, characterized in that each sealing region of the sealing portion is formed by a sealing element, and that the arrangement of the sealing elements on the sealing portion in accordance with the installation position of the sealing profile (16) is arranged such that the sealing elements during a Closing movement along the Eindrehkurve (29) successively in a system at the boundary of the disc (11).

4. Sealing arrangement according to one of the preceding claims 1 to 3, characterized in that the fastening portion has two spaced apart mounting areas, by means of which it can be fastened to the body.

5. Sealing arrangement according to claim 3 or 4, characterized in that at least one sealing element is formed by a, for abutment against the edge certain sealing lip (27, 28).

6. Sealing arrangement according to one of the preceding claims 1 to

5, characterized in that the wall portion (24) has an S-shaped configuration, wherein in the closed state of the disc (11) viewed in the direction of the outside (7) of the body convex portion (24 ^' ) between an end portion (11 ^' ) of the disc (11) and an edge (25) of a body part (6) - with said

End area forming a sealing area - is located.

7. Sealing arrangement according to one of claims 4 to 6, characterized in that at least one mounting region by a U-shaped plug-on profile (19 ^' ) is formed.

8. Sealing arrangement according to claim 7, characterized in that the attachment profile (19 ^' ) carries a reinforcement.

9. Sealing arrangement according to one of the preceding claims 1 to

8, characterized in that the wall portion (24) is formed thin-walled compared to the other wall portions of the hollow profile (17).

10. Sealing arrangement according to one of claims 1 to 9, characterized in that in the closed state of the disc (11) the hollow profile (17) on the inside (8) facing side of, through the disc (11) and the body part ( 6) definable level extends, and that the wall portion (24) facing this plane

11. Sealing arrangement according to one of claims 1 to 10, characterized in that one, the inside (8) facing surface

(31) of the sealing profile (16) is coated with a coating.

12. Sealing arrangement according to one of the preceding claims 4 to 11, characterized in that a mounting region has a U-shaped receiving profile (5), in which a on the hollow profile (17) integrally formed retaining web (4) is sealingly inserted.

13. Sealing arrangement according to claim 12, characterized in that in the closed state of the disc (11) of the wall portion (24 ^' ) and a further wall portion of the hollow profile (17) extend at an acute angle to each other and in their connection region directly to the retaining web (4 ) are formed.