WO1997025217A1 - Φ-bottomed weather seal for motor vehicles - Google Patents

Φ-bottomed weather seal for motor vehicles Download PDF

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Publication number
WO1997025217A1
WO1997025217A1 PCT/FR1996/002057 FR9602057W WO9725217A1 WO 1997025217 A1 WO1997025217 A1 WO 1997025217A1 FR 9602057 W FR9602057 W FR 9602057W WO 9725217 A1 WO9725217 A1 WO 9725217A1
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WO
WIPO (PCT)
Prior art keywords
channel
sealing element
element according
parts
folding
Prior art date
Application number
PCT/FR1996/002057
Other languages
French (fr)
Inventor
Catherine Billard
Original Assignee
Catherine Billard
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 Catherine Billard filed Critical Catherine Billard
Publication of WO1997025217A1 publication Critical patent/WO1997025217A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00—Sealing arrangements
    • B60J10/20—Sealing arrangements characterised by the shape
    • B60J10/23—Sealing arrangements characterised by the shape assembled from two or more parts
    • B60J10/235—Sealing arrangements characterised by the shape assembled from two or more parts the parts being joined along their longitudinal direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00—Sealing arrangements
    • B60J10/70—Sealing arrangements specially adapted for windows or windscreens
    • B60J10/74—Sealing arrangements specially adapted for windows or windscreens for sliding window panes, e.g. sash guides

Definitions

  • the present invention relates to a sealing element intended in particular to be mounted around the door openings of motor vehicles and intended to establish contact with a sliding or fixed window.
  • Such elements are intended for motor vehicles, and more generally any machine fitted with sliding or fixed windows, the sealing of which is ensured by horizontal and vertical slides comprising lips coming to apply on the opposite faces of the windows, while limiting vibrations and allowing movement if necessary in two opposite directions, generally along a vertical axis.
  • the supporting structure generally the door or the body of the vehicle, has an opening surrounded by a housing for receiving a seal made of rubber, plastic or an equivalent elastic material.
  • This seal usually has a substantially U-shaped section channel in which the window is positioned and a clean back part to be housed in the housing provided for this purpose in the door or the body of the vehicle.
  • patent FR2515768 proposes a seal having a sliding surface at the bottom of the seal. This contact surface is coated with a material such as polytetrafluoroethylene to reduce the sliding resistance of the ice.
  • a seal entails a high manufacturing cost because it requires a particular surface treatment, and does not make it possible to satisfactorily resolve the problem of sealing. Indeed, to ensure precise mechanical guidance, the bearing surface should be relatively hard, which is contrary to the search for good sealing.
  • the invention aims to remedy these drawbacks by proposing a seal structure improving both the quality and the precision of the guide of the sliding window, and the seal against water and humidity, noise and air. , and solid particles.
  • Another objective of the invention is to reduce the manufacturing cost and to allow manufacturing by molding and not only by extrusion.
  • the invention relates to a sealing element formed by a seal, the bottom of the channel having, when the sealing element is positioned in the housing of the door, a folding of section transverse in the shape of " ⁇ " projecting inside the channel in "U” so that the edge of the sliding window comes to rest on the crest of said pleat.
  • This folding ensures both the sealing function and the lateral guiding function of the sliding glass.
  • the elasticity of the material combined with the deformation capacities of the section in " ⁇ " ensures self-adjustment of the bottom of the channel on the lateral edge of the sliding glass, even when it has slight variation in size.
  • the depth of the folding in " ⁇ " is determined so that the sliding window comes, when it is in contact with the folding, to crush the crest of the folding.
  • the two edges of the lateral flanks of the U-shaped channel are provided with lips extending towards the inside of the channel.
  • the lips form with a plane parallel to the bottom of the channel an angle between 0 and 15 ° so that the outer surfaces of the lips converge towards the inside of the channel in "U" shape.
  • it further comprises lateral extensions substantially parallel to the lateral edges of the "U" channel. These lateral extensions make it possible to seal between the seal and the door receiving the glass.
  • the sealing element according to the invention is formed by two internal parts overmolded with a material of lesser hardness.
  • the two internal parts can be produced by plastic molding.
  • the two internal parts are separated transversely, at rest and are joined by a molded part whose bottom has a width greater than 1 spacing of the two internal parts.
  • the two parts have a cross section in "L" shape.
  • the two internal parts have a "T” section and are overmolded on at least one of the sides of the plane delimited by the two vertical branches of the "T", by a material of lesser hardness such as rubber or EPDM defining a channel whose bottom has a cross-sectional folding in the shape of " ⁇ " projecting inside the channel in "U” so that the edge of the sliding window comes press on the crest of said pleat.
  • the two internal parts are molded parts whose profile corresponds to the shape of the opening of the glazed part of the door to form a single assembly for sealing the glazed surface.
  • FIG. 1 shows a cross-sectional view of a first embodiment of a seal according to the invention
  • FIG. 2 shows a cross-sectional view of the seal according to Figure 1 in position in the vehicle door
  • - Figure 3 shows a cross-sectional view of a second embodiment of a seal according to the invention
  • FIG. 4 shows a cross-sectional view of the seal according to Figure 3 in position in the vehicle door
  • - Figure 5 shows a cross-sectional view of a second embodiment of a seal according to the invention
  • FIG. 6 shows a cross-sectional view of the seal according to Figure 5 in position in the vehicle door.
  • Figure 1 shows a cross-sectional view of a first embodiment of a seal according to the invention. It defines a central channel (1) having a "U" section, delimited by a bottom (2) and by two side walls (3, 4).
  • the side walls (3, 4) are surmounted by lips (5, 6) which can be supported on the internal and external surfaces of the sliding or fixed glass.
  • the seal also has lateral extensions (7, 8) substantially parallel to the side walls (3, 4) and defining between these a rib (9, 10) parallel to the channel (1), in which the sides of the door housing intended to receive the seal.
  • the median planes (11, 12) form with the plane of symmetry (12) of the joint an angle of the order of 75 degrees, the two planes (11, 12) converge towards the center of the channel (1).
  • the internal surfaces of the U-shaped channel can be treated in a known manner by flocking, by a coating or by any other process facilitating the sliding of the glass.
  • the bottom (2) is flat in the embodiment described.
  • the width of the joint is greater than the width of the housing intended to receive it. Therefore, when the seal is positioned in its housing, it is deformed laterally as indicated by the arrows FI and F2, and the bottom (2) is deformed as shown in fine hatching in Figure 1, the center of the channel (2 ) deforming towards the inside of the channel in "U” as indicated by arrow F3.
  • the bottom then has a crease (14).
  • This folding (14) projects inwards from the channel in a "U” shape and has a general shape in " ⁇ ".
  • the crest (15) will come to rest on the edge of the glass (16) as shown in figure
  • the door has a housing delimited laterally by two sides (17, 18) on which the grooves (9, 10) are positioned.
  • the width of this housing is less than the width of the joint at rest, which causes the transverse crushing and produces the deformation of the bottom (2) in the form of a pleat in " ⁇ " whose crest (15) comes to bear against the edge of the glass
  • Figures 3 and 4 show a preferred embodiment.
  • the sealing element is formed from two parts (20, 21) preferably made by molding in a plastic material. These two parts (20, 21) are overmolded with rubber, EPDM or any other equivalent material.
  • the two parts (20, 21) can be made of a material with a hardness greater than the hardness of the overmolding material.
  • the overmolding has the joint section substantially conforming to that described in relation to FIGS. 1 and 2.
  • the two parts (20, 21) have an "L" section and a shape corresponding to part or all of the cutout Door. They are separated during overmolding, so that the lower branches
  • (50, 51) parts (20, 21) are of complementary shape so that the two parts can be connected and form a one-piece base when the sealing element is in place.
  • the two parts (20, 21) in “L” are brought together, which causes a deformation of the membrane (25) as shown in Figure 4.
  • the membrane (25) forming the bottom of the channel (1) in “U” then has a fold whose cross section is in the shape of " ⁇ ".
  • the two parts (20, 21) also have protuberances (22, 23) for clipping into cavities provided for this purpose in the housing of the door intended to receive the sealing element.
  • clipping protuberances can also be provided directly on the exterior surfaces of the side walls of the "U" channel or on the side extensions.
  • Figures 5 and 6 show an alternative embodiment for sealing a sliding window and a fixed window. This type of sealing element is particularly intended for the rear of a "coupé" type motor vehicle.
  • It comprises two molded plastic parts (30, 31) having a "T" section, overmolded on one side with a seal in accordance with those previously described, and on the other side by a seal for a fixed window.
  • This seal is for example formed by two lips (32, 33) and side walls (34, 35) defining a central channel (36).
  • the bottom has two half-beads (37, 38) projecting towards the inside of the channel (36). When the two lateral parts are brought together, these half-beads (37, 38) come together to form a support zone for the edge of the fixed lens.
  • the transverse bar of the "T" parts (30, 31) serves as separation posts for the sliding glass and the fixed glass.
  • this type of sealing element could also be used for the connection of two sliding windows.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

This invention concerns a weather seal designed for such purposes as for installation around motor vehicle door openings and to enter into contact with a sliding window pane. It comprises a seal made out of rubber, plastic or a similarly elastic material with a substantially U-shaped channel section (1), in which the window pane can be positioned, and a dorsal section designed to fit into the housing provided for that purpose in the door of the motor vehicle. When the weather seal is positioned in the door groove, the bottom of the channel (1) forms a fold in transverse section, protruding into the interior of the 'U'-shaped channel (1), causing the edge of the window pane to rest against the crest (15) of the said fold (14).

Description

JOINT D'ÉTANCHÉITÉ POUR VEHICULES AUTOMOBILES AVEC UN FOND EN "Ω" . GASKET FOR MOTOR VEHICLES WITH "Ω" BOTTOM.
La présente invention concerne un élément d'étanchéité destiné notamment à être monté autour des ouvertures de portes de véhicules automobiles et destinée à établir un contact avec une vitre coulissante ou fixe.The present invention relates to a sealing element intended in particular to be mounted around the door openings of motor vehicles and intended to establish contact with a sliding or fixed window.
De tels éléments sont destinés à des véhicules automobiles, et plus généralement tout engin muni de glaces coulissantes ou fixes dont l'étanchéité est assurée par des coulisses horizontales et verticales comportant des lèvres venant s'appliquer sur les faces opposées des glaces, tout en limitant les vibrations et en autorisant le cas échéant le déplacement selon deux directions opposées, généralement suivant un axe vertical .Such elements are intended for motor vehicles, and more generally any machine fitted with sliding or fixed windows, the sealing of which is ensured by horizontal and vertical slides comprising lips coming to apply on the opposite faces of the windows, while limiting vibrations and allowing movement if necessary in two opposite directions, generally along a vertical axis.
La structure porteuse, généralement la porte ou la carrosserie du véhicule, présente une ouverture entourée par un logement pour recevoir un joint en caoutchouc, en matière plastique ou en un matériau élastique équivalent. Ce joint présente habituellement un canal de section sensiblement en U dans lequel vient se positionner la vitre et une partie dorsale propre à venir se loger dans le logement prévu à cet effet dans la porte ou la carrosserie du véhicule.The supporting structure, generally the door or the body of the vehicle, has an opening surrounded by a housing for receiving a seal made of rubber, plastic or an equivalent elastic material. This seal usually has a substantially U-shaped section channel in which the window is positioned and a clean back part to be housed in the housing provided for this purpose in the door or the body of the vehicle.
Le problème de ces joints est d'améliorer l'étanchéité à l'eau et l'humidité, aux particules solides tels que les grains de sables et de poussière, et aussi à l'air de façon à garantir un confort acoustique et thermique aussi élevé que possible. Un autre problème est d'assurer un guidage à la fois précis et doux de la glace pour permettre un coulissement régulier, et ne nécessitant pas une puissance d'entraînement excessive. Les lèvres prévues à l'extrémité du canal sont pour cela insuffisantes, et on a proposé dans 1 ' état de la technique un grand nombre de solutions pour tenter d-'augmenter l'étanchéité de la jonction entre le joint et la glace.The problem with these seals is to improve the sealing against water and humidity, solid particles such as grains of sand and dust, and also air, so as to guarantee acoustic and thermal comfort as well. as high as possible. Another problem is to ensure both precise and gentle guidance of the ice to allow smooth sliding, and not requiring excessive driving power. The lips provided at the end of the channel are insufficient for this, and it has been proposed in 1 state of the art a large number of solutions to try to increase the tightness of the junction between the seal and the glass.
On a par exemple proposé dans le brevet français FR2635299 de réaliser un joint extrude présentant à l'intérieur du canal des surfaces flexibles s ' étendant transversalement de façon à former une surface de contact avec la glace en supplément de celle formée par les lèvres extérieures. Ce type de joint ne permet pas d'assurer la fonction de guidage de manière satisfaisante.For example, it has been proposed in French patent FR2635299 to produce an extruded joint having inside the channel flexible surfaces extending transversely so as to form a contact surface with the ice in addition to that formed by the outer lips. This type of seal does not provide the guiding function satisfactorily.
Un autre brevet de l'art antérieur, le brevet FR2515768, propose un joint présentant une surface de glissement au fond du joint. Cette surface de contact est revêtue par un matériau tel que le polytétrafluoroéthylène pour réduire la résistance au coulissement de la glace. Un tel joint entraîne un coût de fabrication élevé car il nécessite un traitement de surface particulier, et ne permet pas de résoudre de manière satisfaisante le problème de l'étanchéité. En effet, pour assurer un guidage mécanique précis, il convient que la surface d'appui soit relativement dure, ce qui est contraire à la recherche d'une bonne étanchéité. L'invention vise à remédier à ces inconvénients en proposant une structure de joint améliorant à la fois la qualité et la précision du guidage de la vitre coulissante, et l'étanchéité contre l'eau et l'humidité, le bruit et l'air, et les particules solides. Un autre objectif de l'invention est de réduire le coût de fabrication et de permettre une fabrication par moulage et pas seulement par extrusion.Another patent of the prior art, patent FR2515768, proposes a seal having a sliding surface at the bottom of the seal. This contact surface is coated with a material such as polytetrafluoroethylene to reduce the sliding resistance of the ice. Such a seal entails a high manufacturing cost because it requires a particular surface treatment, and does not make it possible to satisfactorily resolve the problem of sealing. Indeed, to ensure precise mechanical guidance, the bearing surface should be relatively hard, which is contrary to the search for good sealing. The invention aims to remedy these drawbacks by proposing a seal structure improving both the quality and the precision of the guide of the sliding window, and the seal against water and humidity, noise and air. , and solid particles. Another objective of the invention is to reduce the manufacturing cost and to allow manufacturing by molding and not only by extrusion.
A cet effet, l'invention concerne un élément d'étanchéité formé par un joint dont le fond du canal présente, lorsque l'élément d'étanchéité est positionné dans le logement de la porte, un plissement de section transversale en forme de "Ω" faisant saillie à l'intérieur du canal en "U" de manière à ce que le bord de la vitre coulissante vient s'appuyer sur la crête de ladite plissure. Ce plissement assure à la fois la fonction d'étanchéité et la fonction de guidage latérale de la glace coulissante. L'élasticité du matériau conjuguée aux capacités de déformation de la section en "Ω" assure un auto-ajustement du fond du canal sur le bord latéral de la glace coulissante, y compris lorsque celle-ci présente de légère variation de dimension.To this end, the invention relates to a sealing element formed by a seal, the bottom of the channel having, when the sealing element is positioned in the housing of the door, a folding of section transverse in the shape of "Ω" projecting inside the channel in "U" so that the edge of the sliding window comes to rest on the crest of said pleat. This folding ensures both the sealing function and the lateral guiding function of the sliding glass. The elasticity of the material combined with the deformation capacities of the section in "Ω" ensures self-adjustment of the bottom of the channel on the lateral edge of the sliding glass, even when it has slight variation in size.
De préférence, la profondeur du plissement en "Ω" est déterminée de manière à ce que la vitre coulissante vient, lorsqu'elle est en contact avec le plissement, écraser la crête du plissement.Preferably, the depth of the folding in "Ω" is determined so that the sliding window comes, when it is in contact with the folding, to crush the crest of the folding.
Selon un mode de réalisation préféré, les deux arêtes des flancs latéraux du canal en "U" sont munies de lèvres s 'étendant vers l' intérieur du canal.According to a preferred embodiment, the two edges of the lateral flanks of the U-shaped channel are provided with lips extending towards the inside of the channel.
Avantageusement, les lèvres forment avec un plan parallèle au fond du canal un angle compris entre 0 et 15° de manière à ce que les surfaces extérieures des lèvres convergent vers l'intérieur du canal en "U" .Advantageously, the lips form with a plane parallel to the bottom of the channel an angle between 0 and 15 ° so that the outer surfaces of the lips converge towards the inside of the channel in "U" shape.
Selon une variante de réalisation, il comporte en outre des prolongements latéraux sensiblement parallèles aux bords latéraux du canal en "U" . Ces prolongements latéraux permettent d'assurer l'étanchéité entre le joint et la porte recevant la vitre.According to an alternative embodiment, it further comprises lateral extensions substantially parallel to the lateral edges of the "U" channel. These lateral extensions make it possible to seal between the seal and the door receiving the glass.
Selon un mode de réalisation préféré, l'élément d'étanchéité selon l'invention est formé par deux pièces internes surmoulées avec un matériau d'une moindre dureté. Les deux pièces internes peuvent être réalisées par moulage de matière plastique.According to a preferred embodiment, the sealing element according to the invention is formed by two internal parts overmolded with a material of lesser hardness. The two internal parts can be produced by plastic molding.
Avantageusement, les deux pièces internes sont écartées transversalement, au repos et sont réunies par une pièce surmoulée dont le fond présente une largeur supérieure à 1 ' écartement des deux pièces internes.Advantageously, the two internal parts are separated transversely, at rest and are joined by a molded part whose bottom has a width greater than 1 spacing of the two internal parts.
Selon une autre variante avantageuse, les deux pièces présentent une section transversale en "L" . Selon une autre variante avantageuse, les deux pièces internes présentent une section en "T" et sont surmoulées de l'un des côtés au moins du plan délimité par les deux branches verticales du "T", par une matière de moindre dureté telle que du caouctchoux ou de l'EPDM définissant un canal dont le fond présente un plissement de section transversale en forme de "Ω" faisant saillie à l'intérieur du canal en "U" de manière à ce que le bord de la vitre coulissante vient s'appuyer sur la crête de ladite plissure. Selon un mode de réalisation préféré, les deux pièces internes sont des pièces moulées dont le profil correspond à la forme de l'ouverture de la partie vitrée de la porte pour former un ensemble unique d'étanchéification de la surface vitrée. L'invention sera mieux comprise à la lecture de la description qui suit, faisant référence aux dessins annexés se rapportant à des exemples non limitatifs de réalisation, où :According to another advantageous variant, the two parts have a cross section in "L" shape. According to another advantageous variant, the two internal parts have a "T" section and are overmolded on at least one of the sides of the plane delimited by the two vertical branches of the "T", by a material of lesser hardness such as rubber or EPDM defining a channel whose bottom has a cross-sectional folding in the shape of "Ω" projecting inside the channel in "U" so that the edge of the sliding window comes press on the crest of said pleat. According to a preferred embodiment, the two internal parts are molded parts whose profile corresponds to the shape of the opening of the glazed part of the door to form a single assembly for sealing the glazed surface. The invention will be better understood on reading the following description, referring to the accompanying drawings relating to nonlimiting exemplary embodiments, where:
- la figure 1 représente une vue en coupe transversale d'un premier exemple de réalisation de joint selon l'invention ;- Figure 1 shows a cross-sectional view of a first embodiment of a seal according to the invention;
- la figure 2 représente une vue en coupe transversale du joint selon la figure 1 en position dans la porte du véhicule ; - la figure 3 représente une vue en coupe transversale d'un deuxième exemple de réalisation de joint selon l'invention ;- Figure 2 shows a cross-sectional view of the seal according to Figure 1 in position in the vehicle door; - Figure 3 shows a cross-sectional view of a second embodiment of a seal according to the invention;
- la figure 4 représente une vue en coupe transversale du joint selon la figure 3 en position dans la porte du véhicule ; - la figure 5 représente une vue en coupe transversale d'un deuxième exemple de réalisation de joint selon l'invention ;- Figure 4 shows a cross-sectional view of the seal according to Figure 3 in position in the vehicle door; - Figure 5 shows a cross-sectional view of a second embodiment of a seal according to the invention;
- la figure 6 représente une vue en coupe transversale du joint selon la figure 5 en position dans la porte du véhicule.- Figure 6 shows a cross-sectional view of the seal according to Figure 5 in position in the vehicle door.
La figure 1 représente une vue en coupe transversale d'un premier exemple de réalisation d'un joint selon l'invention. Il définit un canal central (1) présentant une section en "U" , délimité par un fond (2) et par deux parois latérales (3, 4) . Les parois latérales (3, 4) sont surmontées par des lèvres (5, 6) pouvant s'appuyer sur les surfaces internes et externes de la glace coulissante ou fixe. Le joint présente par ailleurs des prolongements latéraux (7, 8) sensiblement parallèles aux parois latérales (3, 4) et définissant entre ces dernières une nervure (9, 10) parallèle au canal (1) , dans lesquels viendront se positionner les flancs du logement de la porte destinés à recevoir le joint.Figure 1 shows a cross-sectional view of a first embodiment of a seal according to the invention. It defines a central channel (1) having a "U" section, delimited by a bottom (2) and by two side walls (3, 4). The side walls (3, 4) are surmounted by lips (5, 6) which can be supported on the internal and external surfaces of the sliding or fixed glass. The seal also has lateral extensions (7, 8) substantially parallel to the side walls (3, 4) and defining between these a rib (9, 10) parallel to the channel (1), in which the sides of the door housing intended to receive the seal.
Les plans médians (11, 12) forment avec le plan de symétrie (12) du joint un angle de l'ordre de 75 degrés, les deux plans (11, 12) convergent vers le centre du canal (1) . Les surfaces intérieures du canal en "U" peuvent être traitées de manière connue par flocage, par un revêtement ou par tout autre procédé facilitant le glissement des glaces.The median planes (11, 12) form with the plane of symmetry (12) of the joint an angle of the order of 75 degrees, the two planes (11, 12) converge towards the center of the channel (1). The internal surfaces of the U-shaped channel can be treated in a known manner by flocking, by a coating or by any other process facilitating the sliding of the glass.
Avant que le joint ne soit positionné dans son logement, le fond (2) est plat dans l'exemple de réalisation décrit. La largeur du joint est supérieure à la largeur du logement destiné à la recevoir. De ce fait, lorsque le joint est positionné dans son logement, il est déformé latéralement comme indiqué par les flèches FI et F2, et le fond (2) se déforme comme représenté en hachures fines sur la figure 1, le centre du canal (2) se déformant vers l'intérieur du canal en "U" comme indiqué par la flèche F3. Le fond présente alors un plissement (14) . Ce plissement (14) fait saillie vers l'intérieur du canal en "U" et présente une forme général en "Ω" . La crête (15) viendra s'appuyer sur le bord de la vitre (16) comme représenté en figureBefore the seal is positioned in its housing, the bottom (2) is flat in the embodiment described. The width of the joint is greater than the width of the housing intended to receive it. Therefore, when the seal is positioned in its housing, it is deformed laterally as indicated by the arrows FI and F2, and the bottom (2) is deformed as shown in fine hatching in Figure 1, the center of the channel (2 ) deforming towards the inside of the channel in "U" as indicated by arrow F3. The bottom then has a crease (14). This folding (14) projects inwards from the channel in a "U" shape and has a general shape in "Ω". The crest (15) will come to rest on the edge of the glass (16) as shown in figure
2. La porte présente un logement délimité latéralement par deux flancs (17, 18) sur lesquels viennent se positionner les rainures (9, 10) . La largeur de ce logement est inférieure à la largeur du joint au repos, ce qui provoque l'écrasement transversal et produit la déformation du fond (2) en forme de plissure en "Ω" dont la crête (15) vient s'appuyer contre le bord de la vitre2. The door has a housing delimited laterally by two sides (17, 18) on which the grooves (9, 10) are positioned. The width of this housing is less than the width of the joint at rest, which causes the transverse crushing and produces the deformation of the bottom (2) in the form of a pleat in "Ω" whose crest (15) comes to bear against the edge of the glass
(16) . Ce bord écrase légèrement la plissure (14) qui vient assurer l'étanchéité et le positionnement latéral de la glace (16) .(16). This edge slightly crushes the pleat (14) which ensures the sealing and the lateral positioning of the glass (16).
Les figures 3 et 4 représentent une variante préférée de réalisation.Figures 3 and 4 show a preferred embodiment.
L'élément d'étanchéité est formé de deux pièces (20, 21) réalisées de préférence par moulage en une matière plastique. Ces deux pièces (20, 21) sont surmoulées avec du caoutchouc, de l'EPDM ou tout autre matériau équivalent. Les deux pièces (20, 21) peuvent être réalisées en une matière de dureté supérieure à la dureté du matériau de surmoulage. Le surmoulage présente la section de joint sensiblement conforme à celle décrite en relation avec les figures 1 et 2. Les deux pièces (20, 21) présentent une section en "L" et une forme correspondant à une partie ou à la totalité de la découpe de la porte. Elles sont écartées lors du surmoulage, de telle sorte que les branches inférieuresThe sealing element is formed from two parts (20, 21) preferably made by molding in a plastic material. These two parts (20, 21) are overmolded with rubber, EPDM or any other equivalent material. The two parts (20, 21) can be made of a material with a hardness greater than the hardness of the overmolding material. The overmolding has the joint section substantially conforming to that described in relation to FIGS. 1 and 2. The two parts (20, 21) have an "L" section and a shape corresponding to part or all of the cutout Door. They are separated during overmolding, so that the lower branches
(27, 28) sont reliées par une membrane (25) réalisée par surmoulage, et présentant au repos préférentiellement un aspect légèrement bombé. Les bords latéraux inférieurs(27, 28) are connected by a membrane (25) produced by overmolding, and preferably having at rest a slightly domed appearance. The lower side edges
(50, 51) des pièces (20, 21) sont de forme complémentaire de manière à ce que les deux pièces puissent se raccorder et former une embase monobloc lorsque l'élément d'étanchéité est en place.(50, 51) parts (20, 21) are of complementary shape so that the two parts can be connected and form a one-piece base when the sealing element is in place.
Lorsque l'élément d'étanchéité est mis en place dans le logement de la porte prévu à cet effet, les deux pièces (20, 21) en "L" sont rapprochées, ce qui provoque une déformation de la membrane (25) comme représentée en figure 4. La membrane (25) formant le fond du canal (1) en "U" présente alors une plissure dont la section transversale est en forme de "Ω" . Les deux pièces (20, 21) présentent par ailleurs des protubérances (22, 23) permettant le clipsage dans des cavités prévues à cet effet dans le logement de la porte destiné à recevoir l'élément d'étanchéité.When the sealing element is placed in the housing of the door provided for this purpose, the two parts (20, 21) in "L" are brought together, which causes a deformation of the membrane (25) as shown in Figure 4. The membrane (25) forming the bottom of the channel (1) in "U" then has a fold whose cross section is in the shape of "Ω". The two parts (20, 21) also have protuberances (22, 23) for clipping into cavities provided for this purpose in the housing of the door intended to receive the sealing element.
Bien entendu, de telles protubérances de clipsage peuvent également être prévues directement sur les surfaces extérieures des parois latérales du canal en "U" ou sur les prolongements latéraux.Of course, such clipping protuberances can also be provided directly on the exterior surfaces of the side walls of the "U" channel or on the side extensions.
Les figures 5 et 6 représentent une variante de réalisation pour l'étanchéité d'une glace coulissante et d'une glace fixe. Ce type d'élément d'étanchéité est particulièrement destiné à l'arrière d'un véhicule automobile de type "coupé"Figures 5 and 6 show an alternative embodiment for sealing a sliding window and a fixed window. This type of sealing element is particularly intended for the rear of a "coupé" type motor vehicle.
Il comporte deux pièces moulées en matière plastique (30, 31) présentant une section en "T", surmoulée d'un côté avec un joint conforme à ceux précédemment décrit, et de l'autre côté par un joint pour une vitre fixe. Ce joint est par exemple formé de deux lèvres (32, 33) et de parois latérales (34, 35) définissant un canal central (36) . Le fond présente deux demi-bourrelets (37, 38) saillant vers l'intérieur du canal (36) . Lorsque les deux parties latérales sont rapprochées, ces demi- bourrelets (37, 38) viennent se rencontrer pour former une zone d'appui du bord de la glace fixe. La barre transversale des pièces (30, 31) en "T" sert de montants de séparation de la glace coulissant et de la glace fixe. Bien entendu, ce type d'élément d'étanchéité pourrait également être employé pour la liaison de deux glaces coulissantes.It comprises two molded plastic parts (30, 31) having a "T" section, overmolded on one side with a seal in accordance with those previously described, and on the other side by a seal for a fixed window. This seal is for example formed by two lips (32, 33) and side walls (34, 35) defining a central channel (36). The bottom has two half-beads (37, 38) projecting towards the inside of the channel (36). When the two lateral parts are brought together, these half-beads (37, 38) come together to form a support zone for the edge of the fixed lens. The transverse bar of the "T" parts (30, 31) serves as separation posts for the sliding glass and the fixed glass. Of course, this type of sealing element could also be used for the connection of two sliding windows.
L'invention est décrite dans ce qui précède à titre d'exemple non limitatif. L'homme du métier sera à même de réaliser différentes variantes sans pour autant sortir du cadre de l'invention. The invention is described in the foregoing by way of nonlimiting example. Those skilled in the art will be able to produce different variants without departing from the scope of the invention.

Claims

R E V E N D I C A T I O N SR E V E N D I C A T I O N S
1 - Elément d'étanchéité destiné notamment à être monté autour des ouvertures de portes de véhicules à moteur et destinée à établir un contact avec une vitre coulissante, formé par un joint en caoutchouc, en matière plastique ou en un matériau élastique équivalent, présentant un canal (1) de section sensiblement en U dans lequel vient se positionner la vitre et une partie dorsale propre à venir se loger dans le logement prévu à cet effet dans la porte du véhicule, caractérisé en ce que le fond du canal (1) présente, lorsque l'élément d'étanchéité est positionné dans le logement de la porte, un plissement de section transversale faisant saillie à l'intérieur du canal (1) en "U" de manière à ce que le bord de la vitre viennent s'appuyer sur la crête (15) de ladite plissure (14) .1 - Sealing element intended in particular to be mounted around the openings of doors of motor vehicles and intended to establish contact with a sliding window, formed by a rubber seal, made of plastic or an equivalent elastic material, having a channel (1) of substantially U-shaped section in which the window is positioned and a clean back part to be housed in the housing provided for this purpose in the vehicle door, characterized in that the bottom of the channel (1) has , when the sealing element is positioned in the housing of the door, a folding of transverse section projecting inside the channel (1) in "U" so that the edge of the glass come press on the crest (15) of said pleat (14).
2 - Elément d'étanchéité selon la revendication 1 caractérisé en ce que la profondeur du plissement soit déterminée de manière à ce que la vitre viennent, lorsqu'elle est en contact avec le plissement, écraser la crête (15) du plissement (14) .2 - sealing element according to claim 1 characterized in that the depth of the folding is determined so that the glass come, when it is in contact with the folding, crush the crest (15) of the folding (14) .
3 - Elément d'étanchéité selon la revendication 1 ou 2 caractérisé en ce que les deux arêtes des flancs latéraux (3, 4) du canal (1) en "U" sont munies de lèvres (5, 6) s'étendant vers l'intérieur du canal (1) .3 - sealing element according to claim 1 or 2 characterized in that the two edges of the lateral flanks (3, 4) of the channel (1) in "U" are provided with lips (5, 6) extending towards the inside the channel (1).
4 - Elément d'étanchéité selon la revendication 3 caractérisé en ce que les lèvres (5, 6) forment avec un plan parallèle au fond du canal (1) un angle compris entre 0 et 15 ° de manière à ce que les surfaces extérieures des lèvres (5, 6) convergent vers l'intérieur du canal (1) en "U" .4 - sealing element according to claim 3 characterized in that the lips (5, 6) form with a plane parallel to the bottom of the channel (1) an angle between 0 and 15 ° so that the outer surfaces of lips (5, 6) converge towards the inside of the channel (1) in a "U" shape.
5 - Elément d'étanchéité selon l'une quelconque des revendications 1 à 4 caractérisé en ce que le plissement du fond (2) présente une forme en "Ω" . 6 - Elément d'étanchéité selon l'une quelconque des revendications précédentes caractérisé en ce qu'il est formé par deux pièces internes surmoulées avec un matériau d'une moindre dureté. 7 Elément d'étanchéité selon la revendication 6 caractérisé en ce que les deux pièces sont des pièces en matière plastique moulée.5 - sealing element according to any one of claims 1 to 4 characterized in that the folding of the bottom (2) has a shape in "Ω". 6 - Sealing element according to any one of the preceding claims, characterized in that it is formed by two internal parts overmolded with a material of lesser hardness. 7 sealing element according to claim 6 characterized in that the two parts are molded plastic parts.
8 - Elément d'étanchéité selon l'une quelconque des revendications 6 à 7 caractérisé en ce que les deux pièces internes sont écartées transversalement, au repos et sont réunies par une pièce surmoulée dont le fond présente une largeur supérieure à 1 'écartement des deux pièces internes.8 - sealing element according to any one of claims 6 to 7 characterized in that the two internal parts are spaced transversely, at rest and are joined by a molded part whose bottom has a width greater than 1 spacing of the two internal parts.
9 - Elément d'étanchéité selon l'une quelconque des revendications 6 à 8 caractérisé en ce que les deux pièces présentent une section transversale en "L" .9 - sealing element according to any one of claims 6 to 8 characterized in that the two parts have a cross section in "L".
10 - Elément d'étanchéité selon l'une quelconque des revendications 6 à 8 caractérisé en ce que leε deux pièces internes présentent une section en "T" et sont surmoulées de l'un des côtés au moins du plan délimité par les deux branches verticales du "T", par une matière plastique de moindre dureté définissant un canal (1) dont le fond présente un plissement de section transversale en forme de "Ω" faisant saillie à l'intérieur du canal (1) en "U" de manière à ce que le bord de la vitre coulissante vient s'appuyer sur la crête de ladite plissure.10 - sealing element according to any one of claims 6 to 8 characterized in that leε two internal parts have a "T" section and are molded from one side at least of the plane delimited by the two vertical branches "T", by a plastic of less hardness defining a channel (1) whose bottom has a fold of cross section in the shape of "Ω" projecting inside the channel (1) in "U" so that the edge of the sliding window comes to rest on the crest of said pleat.
11 - Elément d'étanchéité selon l'une quelconque des revendications 6 à 10 caractérisé en ce que les deux pièces internes sont des pièces moulées dont le profil correspond à la forme de l'ouverture de la partie vitrée de la porte pour former un ensemble unique d'étanchéification de la surface vitrée. 11 - Sealing element according to any one of claims 6 to 10 characterized in that the two internal parts are molded parts whose profile corresponds to the shape of the opening of the glazed part of the door to form an assembly unique sealing of the glass surface.
PCT/FR1996/002057 1996-01-03 1996-12-20 Φ-bottomed weather seal for motor vehicles WO1997025217A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR96/00036 1996-01-03
FR9600036A FR2743029B1 (en) 1996-01-03 1996-01-03 SEAL FOR MOTOR VEHICLES WITH A BOTTOM IN THE FORM OF A LARGE OMEGA

Publications (1)

Publication Number Publication Date
WO1997025217A1 true WO1997025217A1 (en) 1997-07-17

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ID=9487884

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1996/002057 WO1997025217A1 (en) 1996-01-03 1996-12-20 Φ-bottomed weather seal for motor vehicles

Country Status (2)

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FR (1) FR2743029B1 (en)
WO (1) WO1997025217A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900681A1 (en) * 1997-09-04 1999-03-10 Commercial Body Fittings Ltd Improved door seal

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2350640B (en) * 1999-06-03 2003-11-12 Draftex Ind Ltd Sealing or guiding arrangements
FR2804199B1 (en) * 2000-01-25 2002-09-06 Btr Sealing Systems France RIGID PROFILES IN THERMOPLASTIC MATERIAL, FOR THE PRODUCTION OF FRAMES OF DOORS OF MOTOR VEHICLES, AND THEIR MANUFACTURING METHOD
WO2007111782A1 (en) * 2006-03-23 2007-10-04 Exxonmobil Chemical Patents Inc. Door assembly with core module having integrated belt line reinforcement
WO2007111785A1 (en) * 2006-03-23 2007-10-04 Exxonmobil Chemical Patents Inc. Core module for door assembly having integrated reinforcements

Citations (4)

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Publication number Priority date Publication date Assignee Title
GB379844A (en) * 1931-08-20 1932-09-08 Leonard Henderson Improvements relating to sliding windows for automobiles and the like
GB986281A (en) * 1960-04-11 1965-03-17 Alfred Plummer Improvements in or relating to seals for sliding windows
EP0330546A1 (en) * 1988-02-26 1989-08-30 Hutchinson Sealing run channel for sliding glass, particularly for a motor vehicle window
EP0421316A2 (en) * 1989-10-05 1991-04-10 Continental Aktiengesellschaft Lockable sealing and filling joint, especially for vehicle windows

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB379844A (en) * 1931-08-20 1932-09-08 Leonard Henderson Improvements relating to sliding windows for automobiles and the like
GB986281A (en) * 1960-04-11 1965-03-17 Alfred Plummer Improvements in or relating to seals for sliding windows
EP0330546A1 (en) * 1988-02-26 1989-08-30 Hutchinson Sealing run channel for sliding glass, particularly for a motor vehicle window
EP0421316A2 (en) * 1989-10-05 1991-04-10 Continental Aktiengesellschaft Lockable sealing and filling joint, especially for vehicle windows

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900681A1 (en) * 1997-09-04 1999-03-10 Commercial Body Fittings Ltd Improved door seal

Also Published As

Publication number Publication date
FR2743029A1 (en) 1997-07-04
FR2743029B1 (en) 1998-03-20

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