DE102011106337A1 - Seal for arrangement at aperture of body of motor car, has adhesive surface comprising base body for adhesive attachment to sealing body, where sealing body is positively connected to base body - Google Patents

Abstract

The seal (40) has an adhesive surface (45) comprising a base body (44) for adhesive attachment to a sealing body (42), where the sealing body is positively connected to the base body. The sealing body and the base body comprise locking elements (56) for formation of positive connection corresponding with one another. The base body comprises a fastening profile extending in longitudinal direction of the seal. The base body and the sealing body are one-piece formed and/or firmly bonded and connected with one another. An independent claim is also included for a method for assembling a seal.

Description

Technical area

The present invention relates to a profile-like seal for sealing openings or edges of a motor vehicle body. It is designed in particular for use in the area of a door opening or door opening boundary of the side wall structure of a motor vehicle body.

background

Lockable openings of a motor vehicle body, such. For example, a door opening portion of a body side wall is usually to be provided with at least one circumferential seal so that the corresponding opening portion can be sealed against any ingress of dirt and moisture.

A common, known from the prior art sealing professional, as z. B., inter alia, at a lower edge of the page 22 a front vehicle door 24 is provided shows the 2 in a cross section AA. The seal 26 in this case has a flexible, hollow and deformable trained seal section 30 on, by means of several clip elements 28 in the profile longitudinal direction on a lower side wall structure 18 one in 1 schematically illustrated side wall 10 a motor vehicle body can be attached.

Such attachment by means of individual, separately vorzusehender mounting clips 28 designed on the one hand in mounting technology relatively expensive. In addition, for the assembly of the seal 26 on the corresponding body section 18 individual through holes for receiving the fasteners 28 be provided. Perforated structures, however, always represent a structural weakening in the body area.

The provision of suitable attachment openings in a bottom region of the motor vehicle body can also promote premature corrosion of the relevant body section in the long-term operation of the motor vehicle. Also, a subsequent drilling or punching such mounting holes designed in a prefabricated body structure due to the rather complex shape of the body component designed as expensive. Furthermore, in this case individual burr sections can arise, which prove to be disadvantageous in the manufacturing process and which may need to be removed separately before assembly of the seal.

From the DE 102 10 291 B4 Further, a sealing strip made of an EPDM rubber is known, which has a base region and a tubular sealing region. The base region and the sealing region are integrally formed with each other. An inner part of the base region can be connected with a body exterior panel facing it from a flat connection region to an edge by means of a double-sided caliper band.

Although in this way an attachment without the aid of fastening clips and associated body openings can in principle be realized, an exclusively adhesive attachment of a sealing body to an opening boundary of the body in practice proves to be quite laborious. In particular, a circumferentially formed sealing body is to be adapted to the size of the body opening to be sealed and sealed, and is accordingly under a certain tension upon reaching a final assembly configuration.

For an adhesive assembly process, the entire circumferential seal around the body opening must be fixed by means of separate tools at least until the adhesive has hardened or provides a sufficient fixing effect.

It is therefore an object of the present invention to provide an improved seal for placement on a vehicle body opening, which is as simple as possible and can be arranged reliably and reliably on a Karosserieöffnungsberandung and if possible without the aid of separate fasteners on the body can be fastened.

Advantageous embodiments

This object is achieved with a seal according to claim 1, with a motor vehicle body according to claim 11, a motor vehicle according to claim 12 and with an assembly method according to claim 13, wherein advantageous embodiments and embodiments are each the subject of dependent claims.

The gasket is provided for placement on an opening of a vehicle body. It is especially at a peripheral opening boundary, such. B. fastened along a door cutout of a body side wall. The seal in this case has a base body with an adhesive surface facing the body component, by means of which the base body can be fastened to the body using a suitable adhesive or adhesive strip.

In this case, provision is made in particular for the basic body to be fastened to the body in an exclusively adhesive manner. The body has so far no positive locking means or the like clipende or latching elements for connection to the body.

The seal is further provided with a sealing body, which is positively connected to the base body. In this way, a two-part or two-component seal is provided, one component, the body, separately at an opening boundary of the body can be arranged and the other component, the seal body, preferably after the attachment of the body to the vehicle body with the body positively connected is.

The base body thus provides a sealing-side connection structure for the actual sealing body, wherein the base body can also be fastened independently of the sealing body to the body opening boundary by means of one or more adhesives. The adhesive fastening process is simplified in this way. Namely, the main body has a comparatively low dead weight compared to the entire seal and, in contrast to the sealing body, does not have to have an invariable cross-sectional profile over the entire length or over the entire circumference of the sealing body.

For example, it may be provided to provide the basic body only along individual sections of the sealing body. However, the main body can also have a length or the circumference of the sealing body corresponding outer dimension. It is quite conceivable that the basic body for the purpose of simplification of assembly has individual bending or bending points, which allow a low-tension mounting of the body at the opening boundary of the vehicle body.

According to an advantageous embodiment, it is provided that the sealing body can be attached to the body on the base body only after assembly of the base body and / or can be converted into a sealing configuration. In that regard, the assembly process for the seal designed at least two stages.

In a first step, the base body is to be attached to the body before the sealing body is fastened in a form-fitting manner to the preassembled base body in a subsequent, second step and / or brought into a sealing configuration on the base body.

According to a further embodiment, it is provided that the sealing body and the base body have mutually corresponding locking elements for forming the positive connection of the base body and the sealing body. The base body and / or the sealing body can have an elasticity which assists a mutual engagement of the respective locking elements. Also, the locking elements themselves may have sufficient to form the positive fit elasticity or deformability, so that when merging the locking elements in a predetermined final configuration they lock together in the intended manner and thereby secure the seal body on the body safely and permanently.

According to a further preferred refinement, the adhesive surface of the base body facing the body component is substantially planar. This applies equally to the body surface facing the adhesive surface of the body. A substantially planar, in the profile longitudinal direction of the body extending adhesive surface on both sides of the body and on the side of the associated body component is particularly advantageous for the formation of a stable and durable adhesive bond.

The main body further comprises, according to a further preferred embodiment, a fastening profile for the sealing body extending in the longitudinal direction of the seal. The same applies to advantage for the sealing body too. The two preferred form-fitting interlocking fastening profiles of body and seal body allow continuous attachment of the seal body on the body.

Furthermore, since the base body is also fastened to the body component over its entire longitudinal extent by means of an adhesive, an attachment which remains substantially constant along the sealing profile can be formed. An attachment that extends continuously and without interruption over the entire course of the seal proves to be advantageous, in particular in the long-term operation of the motor vehicle, even in the event of shrinkage processes involving any materials involved.

Mach a further variant, the main body and the sealing body of the seal are formed as separate components, in particular, the main body is completely separate and independent of the actual sealing body in advance adhesively fastened to a body structure. The assembly of body and seal body can be done here also at great time offset and in various stages of production of the body. It is even conceivable, the adhesive attachment to realize the body on the body based on a curing in a paint-drying process adhesive.

In that regard, in the assembly process, if necessary, the base body would have to be fixed to the body with separate temporary fixing means which can be removed after curing of the adhesive, so that the base body is fastened to the motor vehicle body solely by the adhesive effect of an adhesive. The positive fastening of the sealing body on the body arranged in advance on the body can then take place at any suitable time in the assembly process of the motor vehicle. In that regard, the present seal provides increased manufacturing and assembly flexibility.

According to an alternative embodiment, it is further provided that the base body and the sealing body are integrally formed and / or materially connected to each other. When mounting the main body to the vehicle body, the sealing body is still in a pre-assembly before it enters into a positive connection with the body. In the preassembly configuration, the sealing body with respect to the geometry of the body z. B. may be folded away to exert on this no or only minor, the assembly of the body aggravating mechanical stresses.

In this embodiment, it proves to be particularly advantageous if the base body has a leg which is pivotable relative to the adhesive surface and which connects in a form-fitting manner to the base body by means of a latching projection upon reaching a final assembly configuration. The main body can so far z. B. be opened for assembly purposes. A corresponding folding or film hinge can in this case be embedded in the base body. But it is also conceivable to provide a corresponding pivoting mechanism directly in the transition region between the base body and the sealing body. Also, the pivot mechanism may be completely formed in the seal body.

By reciprocal pivoting of the sealing body and the base body about an axis extending substantially in the longitudinal direction of the seal can be achieved that z. B. is folded away when installing a circumferential door panel seal the seal body inwards and thus exerts no significant, acting approximately in the longitudinal direction of the seal clamping forces during assembly of the body to the vehicle body.

Only after the base body is adhesively fixed to the motor vehicle body can be achieved by an outward folding or pivoting of the sealing body a final assembly configuration, wherein the mutually correspondingly formed positive locking means of body and seal body lock together.

According to a further preferred embodiment, it is further provided that the sealing body is attached to the pivotable leg of the base body. Thus, the base body can be designed to be hinged or swiveled. In particular, when the base body is made of a relatively dimensionally stable plastic, this can be done by a reliable pivoting and a sufficiently secure locking of the adhesive surface connected to the pivotable leg and form-locking or locking means.

According to a further preferred embodiment, the sealing body and the base body on different plastic or rubber materials, which in the case of a cohesive connection of body and seal body z. B. manufactured or manufactured by means of a co-extrusion process. The coextrusion process, in which plastic or rubber materials with different mechanical and elastic properties are materially bonded together and / or molded, makes a separate joining of existing different materials basic bodies and sealing bodies superfluous.

Suitable materials are for. As ethylene-propylene-diene rubber (EPDM), polyethylene (PE), polypropylene (PP) and other natural or synthetic thermoplastics, elastomers or rubber materials.

In a further independent aspect, a motor vehicle body is further provided, which has at least one previously described seal, in particular in the bottom region of a door opening of a motor vehicle side wall structure.

Also, a motor vehicle is provided, which is provided with at least one of the previously described two-part, a base body and a sealing body having seal.

According to a further aspect, an assembly method for attaching a seal to an opening of a motor vehicle body is further provided, wherein in a first step, a base body of the seal by means of an adhesive surface provided thereon is adhesively attached to the body, in particular at an opening boundary. Subsequently, in a second step, a sealing body of the seal form-fitting on Body attached. The adhesive attachment of the body in advance and separately on the body creates increased manufacturing flexibility and simplifies the assembly process, since in this way no holes cooperating with fastening pins or clips in the opening boundary have to be provided.

It is also provided according to a development in particular that the sealing body and the base body of the seal are pivotally secured together. The base body is fastened to the body with a sealing body pivoted into a preassembly position. Only after a successful and sufficiently strong connection of body and body of the sealing body can be pivoted in a subsequent step in a final assembly position relative to the main body, wherein mutual locking or positive engagement means engage each other in such a way that the seal body sealing the body opening position or configuration occupies.

Brief description of the figures

Other objects, features and advantageous applications are illustrated in the following description of exemplary embodiments with reference to the drawings. Hereby show:

1 a side view of a side wall structure of a motor vehicle body,

2 a cross-sectional view in the bottom area along the cross-sectional line AA according to 1 According to the state of the art,

3 one according to the cross section 2 corresponding representation of a provided in the bottom portion of a door opening seal according to a first embodiment of the invention,

4 a further embodiment of a two-part, a base body and a sealing body having seal

5 a further cross-sectional view of a seal with a separate body formed from the sealing body and

6 another cross-sectional view of a possible seal.

Detailed description

In the 1 side wall shown in side view 10 a motor vehicle body has in addition to a B-pillar structure 14 and one in a roof railing 16 passing A-pillar 20 a bottom section or side sill section 18 on. A column 20 , Roof rails 16 , B-pillar 14 and side skirts section 18 in this case form a front door opening 12 , The 2 to 6 each show a cross section AA through the side sill area 18 the motor vehicle body, wherein additionally in each case a door structure 24 in the closed state with a downwardly projecting material double flange 22 is shown.

Notwithstanding the in 2 represented, by means of individual clips 28 taking place positive fastening a seal 26 on the side sill structure 18 is after the in the 3 to 6 illustrated embodiments each have a two-part seal 40 . 60 . 70 . 90 provided, each having a basic body 44 . 72 . 92 and a hereby form-fitting connectable seal body 42 . 74 . 94 having.

In the embodiments of 3 and 4 are the basic body 44 and the seal body 42 integrally and permanently connected. The main body 44 points in particular in one of the body 18 or the body-side connection area 48 facing a substantially planar adhesive surface 45 on, by means of an adhesive, an adhesive layer or a double-sided adhesive tape 46 on the preferably designed as a metal sheet body component 18 . 48 adhesive is attachable.

The main body 44 points adjacent to the adhesive surface 45 a hinge area 50 and a leg extending approximately perpendicularly away from the adhesive surface 54 on, the up and down, respectively, the opposite hinge section 50 facing and is formed curved accordingly. That curved trained up in 3 or down in 4 projecting profile section 56 serves as a catch, snap or latching hook for a correspondingly trained counter-locking means 58 , which in the opposite direction to a pivotable leg 52 is arranged.

The thigh 52 is in the area of the hinge section 50 swiveling with the adhesive surface 45 connected. The swiveling leg 52 can in the embodiments according to the 3 and 4 as part of the body 44 but also already as part of the seal body 42 be educated. The seal body itself 42 has a tubular or hollow profile-like configuration. He is in particular one compared to the main body 44 soft or elastic material formed so that even with the presence of certain component and assembly tolerances always a supporting Arrangement on lying adjacent to the lower door flange 22 given is.

The trained as a hollow chamber profile sealing body 42 can be adjacent to the movable leg 52 and in continuation of the underlying hollow chamber section according to 3 a flexible extension 47 exhibit, which in one in the 3 and 4 illustrated final assembly configuration on the bodywork component 18 respectively. 48 supported. In the configuration according to 3 with a relative to the vehicle vertical direction (z) overhead hinge portion 50 can be an opposite, thus lying under lying profile extension 47 at the same time further protection for the adhesive surface 45 and the glue 46 form when he is with a free end to the body component 48 supported.

The subdivision into the 3 and 4 shown seal 40 . 60 in basic body 44 and sealing body 42 can be variable, depending on the choice of material and material distribution of the cross-sectional profile. In any case, it is approximately parallel to the body section 48 extending adhesive surface 45 the main body 44 assigned during a preferably hollow trained hose section 42 forms the seal body.

The pivotable opposite the adhesive surface 45 stored thighs 52 may be part of the comparatively dimensionally stable to be formed base body but also part of the sealing body formed from a comparatively flexible material 42 be.

The further embodiment according to 5 shows a seal 70 one with an adhesive surface 76 provided basic body 72 which has a C-profile-like cross-sectional profile with two lateral and ultimately inwardly projecting legs 78 having. The main body 72 is similar to the main body 44 according to the 3 and 4 at a mounting portion 48 the body component 18 by means of an adhesive or adhesive tape 46 to fix.

In contrast to the embodiment according to 3 and 4 is at the seals 70 . 90 according to the 5 and 6 however, a separable, separate two-part subdivision of the seal 70 . 90 intended. That is the respective basic body 72 . 92 and the associated seal body 74 . 94 are designed as separate components or components, which via corresponding with each other and matched form-locking means 78 . 82 respectively. 98 . 102 engaged with each other and thus formed mutually fixable.

Thus, according to the embodiment according to 5 in particular provided that the sealing body 74 in addition to a closed hollow profile section formed a connecting web 80 having, which with a locking element 82 is provided. The connecting bridge 80 can be between an upper and lower, the hollow section in the direction of the body component 48 lengthening extension 75 , a mushroom-like design 82 have their undercuts with the inward or relative to the vehicle vertical direction (z) upwards, respectively downwardly projecting leg ends 78 forms a positive connection, which is a removal of the seal body 74 from the main body 82 largely prevented after the month.

In the embodiment according to 6 a reverse arrangement is provided, wherein an adhesive surface 96 of the basic body 92 with outwardly bent, ie with respect to the vehicle geometry up and down protruding mounting legs 98 is formed, from the top and from below each of inwardly projecting latching projections 102 be seized. The mutually opposite arranged latching extensions 102 are via a connecting bridge 100 connected to each other, which at the same time a side wall of the hollow chamber-like sealing body 94 forms.

In this embodiment, it is particularly provided that the inwardly projecting barbs 104 provided clip-like extensions 102 at its free ends one of the body component 48 facing support point 103 optionally, which is even sealingly supported upon reaching a final assembly configuration of the body component. Such an extension 102 can be similar to the appendage 75 in the embodiment according to 5 or the extension 47 according to the 3 and 4 the glued area 46 can effectively protect against external environmental influences.

The inward and diagonal of the plane of the body attachment area 48 extending spigot end 104 is also according to the outwardly projecting curvature of the legs 98 of the basic body 96 educated.

In the embodiments according to the 5 and 6 it proves to be particularly advantageous if the interlocking interlocking means, in particular the connecting webs 80 . 100 and the latching extensions provided thereon 82 . 102 are made of a relatively dimensionally stable plastic or rubber, which has a higher strength than the relatively soft material for the sealing lip 74 . 94 exhibit. This allows a long-lasting and highly reliable attachment of a seal to an opening edge of a motor vehicle body.

Manufacturing technology is in all of the embodiments according to the 3 to 6 provided, first the main body 44 . 72 . 92 at the connecting section 48 the body component 18 adhesive to attach. In the embodiments of the 3 and 4 this is done with a relative to the end configuration folded away seal body 42 , which only after the formation of an adhesive bond of the body 44 on the body component 18 in the in the 3 and 4 shown end configuration is folded or pivoted.

The embodiments according to the 5 and 6 see in a modification of this, a previous separate attachment of the body 72 . 92 at the hole-free trained attachment area 48 the body component 18 in front. After attaching the body 72 . 92 , approximately along the entire opening boundary of the door opening 12 , can be a suitable sealing body 74 . 94 in the in the 5 and 6 shown manner positively with the body side already attached base body 72 . 92 get connected.

It should also be noted that although in the present case only a seal is shown in a side skirt area, the described seals are equally applicable to all sealing arrangements in the body area, especially in the area of tailgates, trunk lids and hoods.

The illustrated embodiments show only possible embodiment of the invention to which further numerous variants are conceivable and within the scope of the invention. The exemplary embodiments shown are in no way to be construed as limiting the scope, applicability or configuration possibilities of the invention. The present description merely shows the person skilled in the art a possible implementation of an exemplary embodiment according to the invention. Thus, the most varied modifications can be made to the function and arrangement of elements described without departing from the scope of protection or its equivalents as defined by the following claims.

LIST OF REFERENCE NUMBERS

10

Sidewall structure

12

doorway

14

B-pillar

16

roof rails

18

side skirts

20

A column

22

flange

24

door structure

26

poetry

28

clip

30

seal body

40

poetry

42

seal body

44

body

45

adhesive surface

46

adhesive layer

48

connecting section

50

hinge section

52

connecting web

54

leg

56

Latching extension

58

Latching extension

60

poetry

70

poetry

72

body

74

seal body

75

extension

76

adhesive surface

78

leg

80

connecting web

82

Mushroom Profile

90

poetry

92

body

94

seal body

96

adhesive surface

98

leg

100

connecting web

102

Latching extension

103

support

104

barb

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 10210291 B4 [0006]

Claims (14)

Seal for placement at an opening ( 12 ) a motor vehicle body ( 18 ) with an adhesive surface ( 45 ; 76 ; 96 ) having basic body ( 44 ; 72 ; 92 ) for adhesive attachment to the body ( 18 ) and with a sealing body ( 42 ; 74 ; 94 ), which positively with the body ( 44 ; 72 ; 92 ) is connectable. Seal according to claim 1, wherein the sealing body ( 42 ; 74 ; 94 ) after assembly of the main body ( 44 ; 72 ; 92 ) on the body ( 18 ) on the base body ( 44 ; 72 ; 92 ) and / or can be converted into a sealing configuration. Seal according to one of the preceding claims, wherein the sealing body ( 42 ; 74 ; 94 ) and the basic body ( 44 ; 72 ; 92 ) corresponding locking elements ( 56 . 58 ; 78 . 82 ; 98 . 102 ) to form the positive connection. Seal according to one of the preceding claims, wherein the adhesive surface ( 45 ; 76 ; 96 ) is substantially planar. Seal according to one of the preceding claims, wherein the base body ( 44 ; 72 ; 92 ) extending in the longitudinal direction of the seal fastening profile ( 54 . 56 ; 78 ; 98 ) having. Seal according to one of the preceding claims, wherein the base body ( 72 ; 92 ) and the sealing body ( 74 ; 94 ) are formed as separate components. Seal according to one of the preceding claims 1 to 5, wherein the base body ( 72 ; 92 ) and the sealing body ( 74 ; 94 ) are integrally formed and / or materially connected to each other. Seal according to claim 7, wherein the basic body ( 44 ) one opposite the adhesive surface ( 45 ) pivoting leg ( 52 ), which by means of a latching projection upon reaching an end-mounting configuration with the main body ( 44 ) connects positively. Seal according to claim 8, wherein the sealing body ( 42 ) on the pivotable leg ( 52 ) of the basic body ( 44 ) is attached. Seal according to one of the preceding claims 7 to 9, wherein the basic body ( 72 ; 92 ) and the sealing body ( 74 ; 94 ) have different plastic or rubber materials and are manufactured by means of a co-extrusion process. Motor vehicle body with at least one seal according to one of the preceding claims. Motor vehicle with at least one seal according to one of the preceding claims 1 to 10. Method for mounting a seal ( 40 ; 60 ; 70 ; 90 ) at an opening of a vehicle body, wherein in a first step a base body ( 44 ; 72 ; 92 ) of the seal ( 40 ; 60 ; 70 ; 90 ) by means of an adhesive surface provided thereon ( 45 ; 76 ; 96 ) adhering to the body ( 18 ) and in a second step a sealing body ( 42 ; 74 ; 94 ) of the seal ( 40 ; 70 ; 90 ) positively on the base body ( 44 ; 72 ; 92 ) is attached. Method according to claim 13, wherein the sealing body ( 42 ) and the basic body ( 44 ) of the seal ( 40 ; 60 ) are pivotally secured together and the main body ( 44 ) with a sealing body pivoted into a pre-assembly position ( 42 ) on the body ( 18 ) is fixed and pivoted after mounting in a final assembly position.

Images