Abstract:
The present invention relates to an exterior trim for a frame of a glazed side or rear door of a motor vehicle and to a sealing module incorporating it. The invention notably applies to sealing modules for exterior glass run channel profile strips for doors with hidden frames used in motor vehicles. This exterior trim ( 40″′ ) can be attached directly to a rebate( 21″′ ) of the frame and is intended to hold on this frame at least one sealing profile strip of the run channel type ( 10 ) and a double lip seal ( 50 ) for sealing against the bodyshell, the trim comprising a portion ( 41 ) for clamping onto the rebate which has a substantially U-shaped cross section with two longitudinal axial legs ( 42′″  and  43″′ ). According to the invention, a plurality of male and/or female catching means ( 43 a″′) are formed spaced along the length of at least one of said legs, or catching leg ( 43″′ ) facing the other leg ( 42″′ ) and are designed to cooperate respectively with a plurality of complementary female and/or male catching elements ( 21   a ″′) formed spaced along the length of said rebate.

Description:
FIELD OF THE INVENTION 
     The present invention relates to an exterior trim for a frame of a glazed side or rear door of a motor vehicle and to a sealing module incorporating it. The invention notably applies to sealing modules for exterior glass run channel profile strips for doors with hidden frames used in motor vehicles. 
     BACKGROUND 
     In a known way, exterior trims fitted to sealing profile strips of the run channel or window sealing strip type for the mobile glazing of a motor vehicle perform a function of decorating or improving the appearance of the sealing profile strips that they cover and these trims, like the sealing profile strips that accept them, are generally made of rigid profile strips (typically made of metal or, by way of alternative, of a rigid or semi-rigid thermoplastic material, the latter then including a reinforcing structure) which are assembled onto the corresponding profile strips. These exterior trims can be attached to the bodyshell of the vehicle, in which case they are called “gutters” or double lip seal against bodyshell, or alternatively to a door of the vehicle, they in this case being exterior door frame trims, whether these be vertical or horizontal. Among such glass run channel exterior trims for hidden frame doors a distinction is usually made, in the case of the extruded profile strips, between:
         a first family which includes trims which are attached directly to the rebate of the door frame and to which the glass run channel and the double lip seal portion are added,   a second family which includes trims which are attached to the door frame and which also pass through the sealing profile strip which acts as a double lip seal and a glass run channel, and   a third family which includes trims which are attached to the profile strip that forms the glass run channel, but without making direct contact with the door frame.       

     Exterior trims in this first family are usually extruded metal held on the rebate of the door frame by added metal clamps, screws or pop rivets. A major disadvantage with these trims is that they often require re-machining or rework operations (bending to shape the ends, curving to follow the curvature of the frame, molding to sort out the ends if these ends are not bendable in the case of steel), the addition of end fittings and finally machining to prepare regions at which these clips can be fitted. 
     Other disadvantages with known trims from this first family lie in the surface treatment and/or painting operation (for the “full gloss” black appearance), depending on the appearance desired: chrome, full gloss black, matt, gun metal, etc., in their high cost of manufacture, in the use of aluminum or stainless steel to avoid corrosion (the latter material in fact being very difficult to bend at the ends), in their relatively high weight, and even in the need to bond the trim if its shape evolves over its length. 
     Document EP-B1-1 232 887 discloses an exterior trim for a door with hidden frame which is injection molded from a thermoplastic material and has a cross section substantially in the shape of a T and is for example force-fitted via a U-shaped clamping portion that it includes onto a flat door frame rebate. This rebate may terminate in an arrowhead-shaped axially external end. 
     The trim described in that document has the notable disadvantage of being difficult to mold because of the small dimensions and continuity of its U-shaped clamping portion. Another disadvantage with this trim is that it is unable by itself to support the double lip seal profile strip for sealing against the bodyshell with which strip it is simply in contact. 
     SUMMARY OF THE INVENTION 
     It is an object of the present invention to propose an exterior trim for a frame of a glazed side or rear door of a motor vehicle which is able to overcome these disadvantages, the trim being able to be attached directly to a rebate of the frame and being intended to hold on this frame at least one sealing profile strip of the glass run channel type and a double lip seal for sealing against this bodyshell, this trim comprising a portion for clamping onto the rebate which has a substantially U-shaped cross section with two longitudinal axial legs. 
     To this end, a trim according to the invention is such that a plurality of male and/or female catching means are formed spaced along the length of at least one of said legs, or catching leg facing the other leg and are designed to cooperate respectively with a plurality of complementary female and/or male catching elements formed spaced along the length of said rebate. 
     It will be noted that a trim according to the invention thus defined may be fitted in the overall Y direction (axial direction) of the vehicle that is to accept it via the upper rebate of its relevant door frame. 
     Advantageously, said catching means may comprise parts projecting toward said other leg and/or recessed or hollowed parts, these catching means being formed somewhere short of the axially inner free end of said catching leg. 
     According to another feature of the invention, said trim comprises an axially outer bearing portion comprising the web of said U-shaped clamping portion and extending it at least on one of its sides, or glass run channel side, via which the trim is intended to bear against said glass run channel profile strip, preferably via at least one longitudinal bearing lug extending axially inward and designed to engage in a corresponding axial recess of this profile strip. 
     Advantageously, said bearing portion may further extend said web on an opposite side to said glass run channel side, or double lip seal side, via which the trim is intended to bear against said double lip seal profile strip, this trim having substantially the shape of a “π” in cross section. 
     According to another feature of the invention, said bearing portion and at least said other leg may be single-shot or multi-shot injection molded from one or more thermoplastic materials chosen from the group consisting of filled materials based on thermoplastic material polymers, thermoplastic material elastomers (TPEs) and mixtures thereof, and preferably based on a polypropylene, optionally filled with talc or with glass fibers, or alternatively based on an acrylonitrile-butadiene-styrene (ABS) terpolymer optionally mixed with a polypropylene or with a polycarbonate (PC). 
     Advantageously, said bearing portion may have an axially exterior fair face consisting of at least one layer of a film and/or of a metal foil which is added on, for example by bonding or clipping, or is alternatively formed as one piece with said bearing portion by overmolding or multi-shot injection molding. 
     As an alternative, the fair face of the bearing portion may be obtained by a catalytic chrome plating bath or by painting. 
     According to a first embodiment of the invention, said trim is molded by single-shot or multi-shot injection molding with one or more thermoplastic materials which forms(form) said catching leg, said other leg and an axially external bearing portion joining them together, this trim being formed as one piece over a given cross section. 
     According to this first embodiment of the invention, said two legs may be:
         both continuous over the length of the trim, or alternatively   both discontinuous over the length thereof, being formed of a plurality of leg sections arranged in a staggered configuration for these two legs, the sectors of said catching leg each having one of said catching means.       

     Again according to this first embodiment, said catching means may comprise
         a plurality of obliquely projecting tabs, for example rectangular tabs, which are formed spaced apart over the face of said catching leg facing said other leg and which are respectively designed to collaborate by snap-fastening with cavities (blind cavities or through cavities) of said rebate forming said catching elements, or alternatively   a plurality of cavities (blind cavities or through cavities) for example rectangular cavities formed spaced apart through said catching leg and which are intended to be filled by snap-fastening by obliquely projecting tabs forming said catching elements on the opposing face of said rebate.       

     According to a second embodiment of the invention, said trim comprises:
         an external trim body with a cross section substantially in the shape of an asymmetric L or T, this body having a bearing portion which forms the base of the L or the top of the T and which is intended to hold said glass run channel profile strips and double lip seal profile strips in place and a single leg intended to receive this double lip seal profile strip, and   a plurality of plastic or metal clips which are immobilized in a spaced apart manner against and inside the trim body along the length thereof and which have an upper branch and a lower branch together defining a clamp clamping onto said rebate, said lower branch defining said catching leg of the trim which, in relation with the leg of the trim body forms said clamping portion of the trim.       

     According to this second embodiment of the invention, said upper branch of the clamp formed by each clip defines a holding region holding the latter in abutment in said trip body, this holding region being substantially parallel to said leg of this trim body. 
     Again according to this second embodiment, said lower branch of each clip has a protruding catching part which curves in toward said leg of the trim body and is intended to become wedged in a cavity of said rebate, which is preferably a through-cavity. 
     With reference to these two embodiments of the invention, it will be noted that a trim according to the invention is able to address the aforementioned disadvantages of the prior art relating to the weight, the cost of manufacture and the appearance of existing trims of the aforementioned first family. This trim may have varying appearances according to how it is produced, for example a chrome finish, a full gloss black finish, a matt black finish, etc. 
     Because this door trim is advantageously injection molded, it can adopt a varying geometry, varying longitudinally or laterally, particularly on its visible face, and may be broken down into one or more pieces on the vertical or upper members of the front or rear side door frames, namely on the upright of the opening or “A-pillar” on the front upper frame (front or rear “B-pillar”) and on the rear door upper frame or “C-pillar”. 
     This trim according to the invention may also be able to retain the double lip seal profile strip, whether the latter is manufactured by extrusion or injection molding (single-shot or multiple shot) by being attached to the trim or alternatively whether it is incorporated directly into the trim for example by co-injection molding or multi-shot injection molding. 
     In addition to its appearance function, such a trim according to the invention may also serve to hold the run channel profile strip or strips in combination or otherwise with said door frame rebate. One or more of these glass run channel profile strips which provide sealing between the door frame (via the trim) and the window may be:
         one or more extruded profile strips added between the trim and the door frame, or alternatively   at least one extruded or injection molded sealing lip which is intended to press against the door glazing and which is caught on a protruding lower edge of the trim, for example of ball, bull-nose or harpoon shape, via a C-shaped catching region of said at least one lip, or alternatively   at least one sealing lip which is intended to press against the glazing of said door and which is connected as a single piece to a lower edge of the trim, preferably via overmolding or co-injection molding with the trim.       

     A sealing module according to the invention comprises:
         an exterior trim for the frame of a glazed side or rear door of a motor vehicle as defined hereinabove, the trim being able to be attached directly to a rebate of the frame and being intended to hold on this frame at least one sealing profile strip of the glass run channel type, and   the rebate which comprises said plurality of female and/or male catching elements formed spaced along the length and designed to cooperate with said plurality of complementary male and/or female catching means formed along the length of said at least one catching leg.       

     According to another aspect of the invention, this sealing module is of the type further comprising a double lip seal profile strip comprising a rigid base which is intended to be in contact with the trim, and a sealing part, for example of the type having lip(s) and/or of the tube type which is intended to seal against the fixed frame of the bodyshell. According to the invention, this double lip seal profile strip may advantageously be secured to the trim at at least one region of mechanical attachment or of adhesion between said rigid base and the one of said legs, or proximal leg, which is adjacent to this base. 
     According to one example of the invention, said mechanical catching region is formed at the respective axially internal ends of said rigid base and of said proximal leg and is formed by the bent-back axially internal end of this base which catches on a relief, for example a bead of circular or oblong section or alternatively of harpoon or arrowhead type. 
     According to an alternative form of the invention, said double lip seal profile strip is secured to the trim at two mechanical catching regions respectively formed by two axially internal and external lugs which are continuous or discontinuous, which lugs extend substantially at right angles from that face of said proximal leg which faces toward this profile strip and are then bent back away from one another so that this leg equipped with these lugs substantially forms an inverted “π” in cross section, these two lugs being caught by the axially internal and external ends, which are bent toward one another, of said rigid base which is substantially in the shape of a “∩” in cross section. 
     According to another alternative form of the invention, said double lip seal profile strip is secured to the trim by an adhesive bond obtained preferably by co-injection molding of the materials of which this profile strip is made with that or those of said proximal leg. 
     According to another feature of the invention, said rigid base of said double lip seal profile strip may rest substantially flat against said proximal leg of the trim, or alternatively diverge progressively from this leg starting from its axially internal end as far as its axially external end, against which the trim is mounted, said profile strip preferably being molded as a multi-shot injection molding of thermoplastic materials. 
     It will be noted that this mounting of the double lip seal profile strip flat on the trim gives the sealing module according to the invention greater compactness and that on the other hand, mounting this profile strip with this progressive spacing makes it possible to fill the space between the door frame (via the trim) and the fixed frame member formed by the side of the bodyshell. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Other features, advantages and details of the present invention will become apparent from reading the following description of a number of embodiments of the invention, which are given by way of nonlimiting illustration, said description being given with reference to the accompanying drawings, in which: 
         FIG. 1  is a schematic front view of an exterior trim according to the invention for a glass run channel with hidden frame of a motor vehicle side door frame, 
         FIGS. 2A and 2B  are views in cross section of two sealing modules according to the invention, each one comprising a trim according to said first embodiment mounted on the rebate of the door frame in two different examples of how the catching means and elements formed on an upper leg of the trim and on this rebate cooperate, 
         FIGS. 3A and 3B  are views in cross section of two other sealing modules according to this first embodiment of the invention with two other examples of how catching means and elements formed on a lower leg of the trim and on the rebate cooperate, 
         FIG. 4A  is an enlarged view in cross section of the sealing module of  FIG. 3B  notably illustrating one example of mechanical securing of the double lip seal profile strip to the upper leg of the trim, 
         FIG. 4B  is a view in cross section of a sealing module according to an alternative form of  FIG. 4A  illustrating another example of mechanical securing of the double lip seal profile strip to the upper leg of the trim, 
         FIG. 4C  is a view in cross section of a sealing module according to an alternative form of  FIG. 4A , which differs therefrom only in that the fair face of the trim has a different structure, 
         FIG. 4D  is a partial view both in cross section and in perspective viewed from beneath, of a trim according to  FIG. 4A , on which the double lip seal profile strip of this  FIG. 4A  (with the exception of the sealing part of this profile strip) is caught, this  FIG. 4D  notably showing the structure of tabs or “Iancings” that protrude from the lower leg of the trim, 
         FIG. 4E  is a partial view both in cross section and in perspective viewed from the side, of a trim according to  FIG. 4D  formed of several longitudinal sectors joined together, 
         FIG. 5  is an enlarged view of just the double lip seal profile strip of  FIGS. 4A ,  4 C,  4 D and  4 E, notably showing the multi-material structure of its rigid base and of its flexible sealing part, 
         FIG. 6  is a partial view both in cross section and in perspective viewed slightly from the side, of a sealing module still according to said first embodiment but according to an alternative form of  FIG. 3A  which differs therefrom notably by the discontinuous staggered way in which the upper and lower legs of the trim are formed and by the fact that the double lip seal profile strip is mounted flat on this upper leg, 
         FIGS. 6A and 6B  are views in cross section of two sealing modules according to this first embodiment of the invention, of the type of that of  FIG. 6 , notably showing this staggered arrangement of the two trim legs and the catching means and elements according to  FIG. 3A  in the case of  FIG. 6A  (perforated lower leg), and according to  FIG. 2A  in the case of  FIG. 6B  (perforated upper leg), 
         FIG. 6C  is a view in cross section of a sealing module according to this first embodiment of the invention, essentially differing from that of  FIG. 6A  in that the fair face of the trim is formed of a decorative film or metal foil, 
         FIG. 6D  is a view in cross section of a sealing module according to this first embodiment of the invention, showing an alternative form of  FIG. 6C  in which this film or foil is bonded or crimped onto this fair face and onto the bent-back ends thereof, 
         FIG. 7A  is a partial perspective view showing one example of a discontinuous staggered structure of the two legs of the trim according to  FIGS. 6 to 6C , with the catching cavities formed on its lower leg, 
         FIG. 7B  is a partial perspective view showing another example of a trim according to  FIG. 6D , supplementing the discontinuous structure of the legs according to  FIG. 7A  with the localized crimping at bent-back portions of the foil of this  FIG. 6D , 
         FIG. 8  is a view in cross section of a sealing module according to the second embodiment of the invention, showing a clip which is immobilized inside a trim body and the lower branch of which forms the lower leg of the trim by catching in a cavity of the rebate, the fair face of the trim being formed by a film or foil of the type of  FIGS. 6A to 6C  and this module incorporating a double lip seal profile strip mounted flat along the upper leg of the trim after the example of  FIGS. 6 to 6D , 
         FIG. 8A  is a view in cross section of a sealing module according to the second embodiment of the invention, according to an alternative form of  FIG. 8  in which the upper leg of the trim accepts the double lip seal profile strip spaced apart from it after the example of  FIG. 4B , the lower branch of the clip here being mounted in two positions, these respectively being outside of and in this cavity of the rebate, 
         FIG. 8B  is a view in cross section of a sealing module according to the second embodiment of the invention in accordance with another alternative form of  FIG. 8  in which the double lip seal profile strip is formed as a single piece with the trim, for example by co-injection molding or multi-shot injection molding, a lower branch of the clip also being shown in said two positions, 
         FIG. 8C  is a perspective view of a trim of the type of that of  FIG. 8 , in which a clip according to  FIGS. 8 to 8B  is mounted, 
         FIG. 8D  is a perspective view of this clip according to  FIGS. 8 to 8C , 
         FIG. 9  is view in cross section of a sealing module according to the first embodiment of the invention in accordance with an alternative form of  FIG. 3B , which shows the catching of a sealing lip associated with the glass run channel profile strip on the trim, and 
         FIG. 10  is a view in cross section of a sealing module according to the first embodiment of the invention in accordance with an alternative form of  FIG. 9 , which shows the formation of a sealing lip associated with the glass run channel profile strip as a single piece with the trim. 
     
    
    
     DETAILED DESCRIPTION 
     In what follows, the qualifiers “axially internal” and “axially external” will be used in the usual way to denote the position of an element of the sealing module toward the inside and toward the outside, respectively, in the axial direction Y of the width of the vehicle (this transverse horizontal direction Y being, by definition, perpendicular to the plane XZ defined by the is longitudinal horizontal X and vertical directions). 
     The module  1  visible in the example of  FIG. 1  is, for example, mounted on the rear side door of the vehicle and further incorporates a double lip seal profile strip for sealing against the bodyshell. 
     As can be seen in  FIGS. 2A ,  2 B,  3 A,  3 B and  4 A, a sealing module  1  according to the first embodiment of the invention comprises:
         at least one sealing profile strip  10  forming an exterior run channel of the U-shaped type for a door with a hidden frame  20 , which is intended to press elastically against the two faces of a glazing  30  of the door via flexible sealing lips  11  (preferably made of a single-substance or multi-substance elastomer material),   an exterior trim  40 ,  40 ′,  40 ″,  40 ″′ of the frame  20 , injection molded in one or more thermoplastic material(s), which is attached to an upper rebate  21 ,  21 ′,  21 ′,  21 ″′ of the frame  20  and which holds this glass run channel profile strip  10  on this frame  20 , this trim being substantially in the shape of a “π” in cross section and essentially comprising, on the one hand, a clamping portion  41 ,  41 ′,  41 ″,  41 ″′ of U-shaped cross section with two longitudinal axial legs  42 ,  42 ′,  42 ″,  42 ″′ and  43 ,  43 ″,  43 ″′, for clamping onto the rebate and, on the other hand, an axially outer bearing portion  44  comprising the web  45  of the clamping portion  41  to  41 ″′ and extending it on its two sides, and   a double lip seal profile strip  50  for sealing against the fixed frame of the bodyshell  60 , which comprises a rigid base  51  intended to be in contact with the trim  40  and a sealing part  52  (in this example of the type having lips  53  and  54 ) intended to seal against this fixed frame  60 , and which is also held on the door frame  20  by the trim  40 .       

     More specifically, the bearing portion  44  of the trim  40  to  40 ″′ presses against the glass run channel profile strip  10  for example via a longitudinal lug  46  extending axially inward and designed to engage in a corresponding axial recess  12  of this profile strip  10  and this bearing portion  44  also presses against the double lip seal profile strip  50 . 
     In the example of  FIG. 2A , the upper leg  42  of the trim  40  has, between its axially internal and external ends, means of catching on the rebate, these means consisting of rectangular cavities  42   a  which are formed at regular or irregular intervals along the length of the trim  40  and into which can be snap-fastened tabs  21   a  which protrude obliquely upward and are formed in the manner of rectangular lancings along the length of the rebate  21 . 
     In the example of  FIG. 2B , the upper leg  42 ′ of the trim  40 ′ has means of catching on the rebate  21 ′, these means consisting of oblique rectangular tabs  42   a ′ protruding obliquely downward and which are formed at regular or irregular intervals along the length of the trim  40 ′ between the axially internal and external ends of this leg  42 ′ and which snap-fastened into rectangular cavities  21   a ′ formed along the length of the rebate  21 ′. 
     In the example of  FIG. 3A , the lower leg  43 ″ of the trim  40 ″ has, between its axially internal and external ends, means of catching on the rebate  21 ″, these means consisting of rectangular cavities  43   a ″ which are formed at regular or irregular intervals along the length of the trim  40 ″ and into which can be snap-fastened rectangular tabs  21   a ″ which protrude obliquely downward and are formed along the length of the rebate  21 ″ (it is possible to elect to form these rebate tabs  21   a  or  21   a ″ upward as in  FIG. 2A  or downward as in this  FIG. 3A  according to the required compactness in the immediate geometric vicinity of the door frame  20 ). 
     In example of  FIG. 3B , the lower leg  43 ″ of the trim  40 ″′ has means of catching on the rebate  21 ″ which consist of rectangular oblique tabs  43   a ″′ protruding obliquely upward and formed at regular or irregular intervals along the length of the trim  40 ″′ between the axially internal and external ends of this leg  43 ″ and which snap-fasten into rectangular cavities  21   a ″ formed along the length of the rebate  21 ″′. 
     Such tabs  43   a ″′ formed in the manner of lancings are illustrated in  FIG. 4D  along this lower leg  43 ″, with reference to  FIG. 3B . 
       FIG. 4A  details, likewise for this embodiment of  FIG. 3B , one example of mechanical catching between the rigid base  51  of the double lip seal profile strip  50  and the upper leg  42 ″ of the trim  40 ″′, via the bulge-like axially internal end  42 A of the leg  42 ″ being hooked by the bent-back axially internal end  51   a  of the base  51 , which extends obliquely toward the upper edge  40   a  of the trim  40 ″ which thus presses axially against this double lip seal profile strip  50 . This double lip seal profile strip  50  is further attached to the trim  40 ″′ at a second catching region, directly on the back of the upper edge  40   a , by a lug  47  protruding axially inward from this edge  40   a  into a housing  52   a  in the flexible part  52  of the profile strip  50 , thus locking its position and its sealing contact on the trim  40 ″′. 
     The module according to the alternative form of  FIG. 4B  differs from that of  FIG. 4A  only in that the double lip seal profile strip  150  is secured to the upper leg  142  of the trim  140  by the double hooking or clipping in the vertical direction Z of two axially internal and external lugs  142   a  and  142   b  which extend at right angles from the upper face of the leg and then are bent back from one another forming substantially the shape of an overturned “π” in cross section, the hooking being performed by the axially internal and external ends  151   a  and  151   b , which are bent back toward one another, of the base  151  (which is substantially in the shape of a “∩” or “Ω” in cross section). 
     The double lip seal profile strip  50 ,  150  of a module according to the invention can be manufactured by extrusion (longitudinal cross section constant) or by single-shot or multiple-shot injection molding (i.e. notably by co-injection molding), injection molding allowing this profile strip  50 ,  150  to be given a shape that evolves over its length so that it is better able to follow the shape of the fixed frame  60  (bodyshell side) and of the trim  40  to  140  along the entire perimeter concerned. This double lip seal profile strip  50 ,  150 , depending on its immediate surroundings, may have a shape as close as possible to the upper leg  42  to  142  of the trim  40  to  140  if there is very little space available (see  FIGS. 6 to 6D ), or on the other hand may be more distant from this leg  42  to  142  so that it gradually nears the wall on the bodyshell  60  side against which it is to seal (see  FIGS. 4A and 4C ). Its rigid base  51  to  151  may be based on an EPDM of high Shore D hardness, or on a polypropylene, for example containing fillers of talc, glass fiber or hemp, in percentages by mass ranging from 5% to 60% and preferably of between 20% and 30%. Its flexible part  52  to  152 , whether of tube type or of the type with lips  53  and  54 , may for example be made of a flexible EPDM of compact or cellular type, of a flexible TPE of the TPS type (e.g. SEBS) or flexible TPV (e.g. a mixture of polypropylene and EPDM) or alternatively a PVC, a styrene elastomer or a polyurethane, and this flexible part  52  may continue around the region  42 A for catching on the trim  40 ′″ (see  FIG. 4A ) in order to ensure a contact with the rebate  21 ′″ which is free of vibration or parasitic noise. Of course, the materials of which the double lip seal profile strip  50 ,  150  is made are chosen with due deference to the mutual compatibilities of the materials. It is possible to incorporate a slippery coating, such as an adhesive, possibly a hot melt adhesive to which flock has been added, a flocked strip, a co-extruded film of HDPE (high density polyethylene) or of high hardness polypropylene, a lacquer, etc. As already mentioned, it will be noted that the double lip seal profile strip  50 ,  150  may be co-injection molded directly with the frame trim  40  to  140  in order to ensure that it is closely bonded therewith. 
     In general, with reference to the first embodiment of the invention, the two legs  42  to  142 ,  142 ′ and  43  to  143 ,  143 ′ of this clamping portion  41  to  141  may be longitudinally continuous, as may be seen in  FIG. 4D , or alternatively, depending on the environment to which this portion must conform and for ease of production of the mold and ease of molding, they may be discontinuous and arranged in alternation along the length of the trim  40  to  140  (i.e. in a staggered configuration, see  FIGS. 6 to 7B ) so that over a given cross section, just one leg  42  or  43  to  142  or  143  cooperates by catching with the rebate  21  to  121 .  FIGS. 6 ,  6 A,  6 C and  6 D in particular show the snap-fastening of a tab  21   a ″ of the rebate  21 ″ into a rectangular through-cavity  43   a ″ of the discontinuous lower leg  143 ′, above which the upper leg  142 ′ is locally absent, as visible in  FIGS. 7A and 7B  which show this perforated structure of each portion of lower leg  143 ′ and, by contrast, the solid structure of each portion of upper leg  142 ′. 
     Still regarding this clamping portion of the trim  40  to  140  it will be noted that its overall U shape can be broken down into local tightenings of the U so that it grips at isolated points and that thin longitudinal ribs can also be created inside this U to give the part stability once it has been fitted and prevent movements and therefore parasitic noises against the rebate of the frame  21  to  121 . The entire contact between trim  40  to  140  and rebate  21  to  121  is mainly governed by the elastic deformation of the U of the clamping portion  41  to  141 , which remains in contact with the sheet metal rebate  21  to  121  thanks to the stress of deformation. 
     The clamping portion  41  to  141  of a trim  40  to  140  according to the invention is made of a rigid material, possibly filled to give good thermal performance (resistance to thermal expansion and contraction observed after the thermal aging cycles contained in manufacturer specification sheets). This rigid material may, for example, be based on a polypropylene reinforced with talc at a mass percentage of 20% or by glass fiber at a mass percentage of 30%, or alternatively may be made of ABS (a terpolymer of acrylonitrile-butadiene-styrene), possibly mixed with a polycarbonate. 
     As for the bearing portion  44  to  144  of the trim  40  to  140 , this may be rounded to respect the style and lines of the vehicle, visible from the outside and therefore having to have a satisfactory fair face  148 . The module according to the alternative form of  FIG. 4C  differs from that of  FIG. 4A  only in terms of its fair face  148 , its clamping portion  41  to  141  being unchanged. 
     This fair face  148  may be inherent to the material used to injection mold the trim  40  to  140  for shades such as full gloss black or matt black, in which case the bearing portion  44  to  144  may have a special material in a fine coat 1/10 mm to 2 mm thick, such as a decorative polypropylene or a matt thermoplastic material elastomer (such as a mixture of polypropylene with EPDM, for example an SEBS). 
     According to a first alternative form, particularly for so-called “chrome” finishes, the chrome plated appearance can be obtained by a catalytic bath, something which is feasible only with certain categories of material: ABS, ABS mixed with a polypropylene, etc. In such cases the trim  40  to  140  may be fully injection molded in this material. 
     According to a second alternative form, in order to obtain the chrome plated appearance, full gloss black appearance or any other color or pattern, a bearing portion  144  receives a thin decorative band  148  of chrome or of the desired color or pattern. This band may either be a decorative film that already exists on the market (see  FIGS. 6A to 6C ) or may be a 5/10 mm stainless steel or aluminum metal foil. According to the embodiment, this film or this foil  148  may be:
         added on to the bearing portion  144  after the latter has been injection molded (by fusion, bonding, or even crimping as illustrated in  FIGS. 6D and 7B ), or alternatively   incorporated into the mold at the time of the injection-molding of the trim  140 , thus achieving a chemical bond (see  FIG. 6C : film with a base compatible with the injection molded material, such as a polypropylene, or metal foil with primer) or a physical bond (see  FIGS. 6D and 7B : the metal foil  248  has upper and lower edges which are bent back toward one another and cavities that the injection-molded material will occupy).       

     To do this, and in particular in order to follow the curvature of the trim  140 ,  240 , this thin decorative band  148 ,  248  has been either cut to shape to follow this curvature, or bent prior to its attachment to the bearing portion  144 ,  244  or in the mold, or it naturally has enough flexibility to conform to this curvature without any previous shaping. 
     By way of film  148  it is possible, for example, to use a film of a chromium plated or full gloss black appearance inside the mold, or a surface treatment (for example graining). 
     When use is being made of a foil  148 ,  248 , it may also be attached using bonding or mechanical clamping either continuously or discontinuously (at localized points). This foil  148 ,  248  is in the overall shape of a C associated with grooves on its bearing portion  144 ,  244  for mounting. The trim  140 ,  240  may also locally comprise mugs which are closed over onto the trim for attachment purposes. It will be noted that this added-on foil  148 ,  248  can be painted or covered with a film to give an appearance other than chrome plated and that the decorative foil  148 ,  248  may also be extruded in the aluminum version, which allows solutions for attachment to the trim  140 ,  240  using shapes other than a C shape. In general, it is possible to use a thin foil  148 ,  248  in aluminum or in stainless steel (which has been pressed or extruded) in the mold or even added on by mechanical fastening or bonding. 
     It will also be noted that it is possible to incorporate the flocking of the trim  40  to  240  either:
         in the mold, via a flocked band positioned in this mold, or alternatively   on leaving the mold, using a band which is added on or applied using known methods (i.e. adhesive or possible hotmelt+flock).       

     It will also be noted that it is possible to replace the flock with a material with a low coefficient of friction, which can either be:
         incorporated into the mold in the form of a slippery film of HDPE type, by injecting or spraying into the mold a fine coat of slippery material (a lacquer or slippery polypropylene or alternatively a slippery TPE), or alternatively   added on in a subsequent operation (spraying or HDPE band, for example).       

     In the second embodiment of the invention which is illustrated in  FIGS. 8 to 8D , the frame trim  340 , which is injection molded in thermoplastic material(s) may be in the overall shape of a L in cross section and comprises: comprises:
         an external trim body  340 ′ having a bearing portion  344  which forms the base of the L and which is intended to hold in position the run channel profile strip  10  and double lip seal profile strip  350 , and a single leg  342  intended to accept this double lip seal profile strip  350 , and   a plurality of plastic or metal clips  345  which are mounted in abutment spaced apart inside the trim body  340 ′ along its length and which have an upper branch  346  and a lower branch  347  defining a clamp for clamping onto the rebate  321  (this clamp is fitted onto this rebate in the axial Y direction of the vehicle), the lower branch  347 —or catching leg of the trim  340 —having a protruding catching part  347   a  which is curved in toward the leg  342  and is intended to become wedged in a through-cavity  321  a of the rebate  321 .       

       FIGS. 8 ,  8 C and  8 D show that the lower branch  347  of each clip  345  forms, in relation with the leg  342  of the trim body  340 ′, the clamping portion  341  of the trim  340  and that the upper branch  346  of each clip  345  defines a holding region  346   a  and  346   b  holding the clip in abutment in the trim body  340 ′, this holding region  346   a  and  346   b  being substantially parallel to the leg  342 . 
     These figures also show that the trim  340 ,  340 ″,  340 ″′ is provided with a double lip seal profile strip  350 ,  350 ′,  350 ″ which is possibly formed as a single piece by co-injection molding (see  FIG. 8B ) and which allows the run channel profile strip  10  to be held in association with the door frame  320 . 
     After the manner of what has been explained hereinabove in respect of the first embodiment of the invention, the attachment of this double lip seals profile strip  350 ,  350 ′ to the trim  340 ,  340 ″,  340 ″ can be achieved via mechanical catching, via:
         the hooking of the bulge-shaped axially internal end  342 A of the leg  342  by the bent-back axially internal end  351   a  of the base  351  of the profile strip  350  and by the wedging of the upper edge  340   a  of the bearing portion  344  against the axially external end  351   b  of this profile strip  350  (see  FIG. 8 ); or alternatively via   the double hooking of two lugs  342   a ′ and  342   b ′ of the leg  342 ′, which are analogous to the lugs  142   a  and  142   b  of  FIG. 4B , by the axially internal and external ends  351   a  and  351   b , which are bent back toward one another, of the rigid base  351 ′ of the double lip seal profile strip  350 ′ (see  FIG. 8A ).       

       FIGS. 8C and 8D  show an example of a geometry that can be used for these clips  345 , with notably the holding portion  346  having two opposing ends  346   a  and  346   b  which become wedged behind an upper rim of the body of the trim  340 ′, and the clamp the lower branch  347  of which is bent successively toward this holding portion  346  (in its catching part  347   a ) and then away therefrom. 
     It will be noted that the clips  345  can be bonded to the leg  342  of the trim  340  to improve their hold, or alternatively may be welded to this leg  342  (in the case of plastic clips). As an alternative, these clips  345  may be placed in the mold used for injection molding the trim  340  (they then need to have a region that will allow for mechanical catching of the injected material). 
     As illustrated in  FIGS. 9 and 10 , the trim  440 ,  540  may be directly provided with at least one sealing profile strip or lip  449 ,  549  to be pressed against the external face of the glazing  30 , in combination with a run channel profile strip  10 ′ also mounted on the rebate  21 ′″ (analogous in this example to that of  FIG. 4A ) pressing against the other side of the glazing  30 . 
     In the example of  FIG. 9 , the bearing portion  444  of the trim  440  has a protruding lower edge  440   b  on which such an extruded or injection-molded sealing lip  449  is caught via a C-shaped catching region  449   a  of the lip cooperating with this protruding edge  440   b  which in this example is of the ball or bulge type. 
     In the example of  FIG. 10 , the bearing portion  544  of the trim  540  has a lower edge  540   b  to which there is attached, as a single piece, such a sealing lip  549  which is preferably molded with the trim  540  by overmolding or co-injection molding.