FR2566723A1 - Motor vehicle bodywork seal, originally tipping and thus with a double function - Google Patents

Abstract

The invention relates to the novel industrial product consisting of a motor vehicle bodywork seal, originally tipping and thus with a double function, especially for the lateral edges of the ''roof'' made by ''double extrusion'' of synthetic elastomer mixtures, characterised in that in this way there is made to interact, on the one hand, and in a very predominant fashion, a mixture of fairly high ''hardness'' and, on the other hand, another which is, to the contrary, very ''flexible'', which at the same time produces a short intermediate zone 7 and an end ''lip'' 8, so that this seal ensures alternatively sealing to air and to water, of the upper portion of the doors, in the closed position, or an auxiliary gutter, by simple tipping, when they are opened, whilst ensuring a quite aesthetically pleasing overall appearance.

Description

 The invention relates, the new industrial product, constituted by an automobile body seal, originally tilting and thus having a double function, in particular for the lateral edges of the "roof", produced by "double extrusion", of mixtures of elastomers. advantageously synthetic, characterized by the fact, that in this way, on the one hand and in a very predominant way, a mixture of fairly large "hardness" and on the other hand, another, on the contrary, very "flexible" which achieves at a time; a short intermediate zone and an end "lip", so that this seal alternately ensures air and water tightness of the upper part of the doors, in the closed position where a auxiliary "gutter", by simple tilting when they open = while ensuring a fairly aesthetic overall presentation.

These new characteristics will be better understood; as well as others which are attached thereto and the advantages of the inventiona by referring to the following description and to the appended figures, with respect to which:
Fig.I represents; a schematic side edge of a "roof", automobile body.

 Fig.2 shows, a partial and schematic cross section along the line A-A of Fig.I and on a larger scale, showing the improved seal, according to the invention in a slightly open door position.

 Fig.3 shows a partial and schematic cross section, of the kind of Fig.2, but in the closed position of the door.

 Fig.4 shows a cross section, even on a larger scale of the same joint, considered in isolation.

 Fig.5 shows' a cross sectiona of an alternative embodiment of the joint, of the kind shown in Fig.4.

 Fig.6 shows a transposition of Fig.2 with the variant seal; according to Fig. 5.

 Fig.7 shows a transposition of Fig 3, with the same seal variant! according to Fig. 5.

 according to these Figures and notanunent, 'according to Fig.4, we see that the extruded profile joint; with multiple functions, produced by double extrusion; in accordance with t of the invention combines: a usual "pinching" profile for a body edge, making interact around a central frame -T-, advantageously constituted by a thin strip of aluminum alloy, "U" shaped profile, a coating of a relatively "hard" elastomer mixture.

to be of a beautiful external presentation -2-, while internal lips; such as 3-, improve the attachment to the edge of the body -4- and that, the aluminum alloy is rigid enough, while being elastically deformable, by itself, to disturb its "conformation", according to
the necessary curvatures, on "templates", in the factory, which avoids the usual cut-outs and cut-outs, such reinforcements and at the same time, all
the risks of unsightly 'transparencies' of such cutouts outside
laughing; through the coating.

During this extrusion and with the same "die", this profile of
pinching, in addition and above all, combines the complementary extrusion with the
same mixture of elastomer, relatively hard of sections -5- and -6- of a
lateral extrusion, intended to form "joint" and at the same time, by "double
extrusion "; of a second compatible mixture, but much more flexible and
elastic, the intermediate section -7- and the end lip -8-, with
a general shape of the profile thus extruded which is in the rest position
that represented, by Fig. 4 and according to which it is thus thus
automatically recalled, thus constituting a complete "gutter"
mental evacuation; roof water, when the door is open, as well
that this is shown in Fig. 2, where the roof gutter is in -IO- and the
top of the door, in -II- while vice versa, when closing the door, as shown in Fig.3. the top of the door -II- enti-
do the tilting of the section -5- of the joint, around its larger area
elasticity -7-, so as to achieve so; ure double air and water tightness; in this fraction of the bodywork, where otherwise
turbulence noises; quite unpleasant.

According to the variant of embodiments represented by FIG. 5, the seal according to
the invention is improved; by its combination with a "staple pad"
auxiliary -I2- extruded separately and intended to improve the bottom "seat"
joint seal, at rest, but overall interaction remains the same
and therefore does not require any additional description; as it is illus
very, by the transposition of Figs. 2 and 3, respectively in Figs. 6 and 7.

Finally, it is still obvious that the invention is by no means limited; to the
only modes of implementation; thus explicitly described and represented; but that, on the contrary; the field of the present invention; stretches
expressly to all variants; of application and execution and nctam
ment to those, using combinations of equivalent means and methods; or simply comparable and for example to substitution, others
coating materials, such as so-called "plastic" materials.

Claims (1)

CLAIM I - Bodywork seal, in particular for automobiles, of the type comprising, an extruded "U" profile, of conventional pinching on a body edge; but characterized by the fact that its thin frame, of aluminum alloy is quite rigid while being elastically deformable, by itself; without requiring cutting or cutting, to allow a "factory conformation", according to the necessary curvatures. s - body seal) in particular for automobiles according to claim fol, characterized in that its extrusion is combined with a complementary lateral extrusion; the same mixture of synthetic elastomer; relatively hard, to form two main sections -5- and -6-, interacting; by double extrusion, with another mixture of compatible elastomer, but much more flexible and elastically deformable to produce a sort of intermediate tilting hinge -7- and an end lip -8-, with a general shape "at rest", shown by Fig. 4.  3 - Body seal according to claim 2, characterized in that: its combination, with an auxiliary "clip-on pad" -12-, extruded separately, improves "the seat" of the joint tilting; at rest.  40 Body seal; according to claims 10 or 2 or 30; characterized by the fact: that 19extrusion of compatible elastomers, respectively "hard" and "flexible", is substituted for other coating materials, such as so-called "plastic" materials with comparable characteristics.