Patent Publication Number: US-2022220791-A1

Title: Glazing unit with two-part window bracket and method for producing said glazing unit

Description:
The invention relates to the field of glazing units comprising a window and at least one window bracket to allow said window to be moved in translation. 
     The invention does not relate to the field of glazing units in which the window can be moved by rotation. 
     The invention is described with reference to an application to glazing units for a vehicle comprising a window, notably a laminated window therefore comprising an exterior sheet of glass, an interior sheet of glass and an interlayer sheet of adhesive situated between said two sheets of glass, said window having an exterior face intended to face toward an exterior space, an edge face and an interior face intended to face toward an interior face. 
     The invention relates more particularly to a glazing unit comprising at least one window bracket having an axis passing through said window via a hole formed in the window and opening on both faces of the window. 
     The prior art knows a window bracket solution from international patent application No WO 2008/065310. In that document, the window bracket has an axis passing through the window via a hole, for the passage of a threaded attachment rod. This passageway is complicated because it is made up of two orifices of different sizes each made in one of the two glass sheets of the laminated window. A washer is positioned inside the larger orifice, then a nut is screwed onto the threaded attachment rod, from the side of the largest orifice. 
     This solution can be improved upon because, during use, the forces applied by the window bracket to the window are liable to damage the lamination. In addition, the compactness and the weight can be improved. 
     Furthermore, it may sometimes be difficult to manage with precision the position of the axis of the attachment rod; now, this position is essential for the precision of the movement applied to the glazing unit in order to move same. 
     The prior art also knows, from document US 2005/07077, a window bracket made in two parts joined together by a hinge. These two parts each comprise a tube portion and a pin, one tube portion being intended to be slid into the other and the final position attached by the collaboration of the pins. This window bracket is not reliable enough because when a fitter, particularly on a high-throughput assembly line, tightens the bolt a little too much, it causes the pins to disengage. 
     The prior art also knows, from document DE 3535719, a window bracket system with a plate and counter-washer having a spiral external surface and three pins, which needs to be screwed into a three-part partially tubular element connected to the plate. This system is intended to make it possible to compensate the tolerances but is not reliable enough because in the absence of a counter-plate, all the forces pass through the plate. 
     The present invention intends to overcome the disadvantages of the prior art and is more specifically and preferentially directed at a glazing unit equipped with at least one window bracket that is very compact and very lightweight, the axis of which can be positioned with precision and which is fixed very securely to the window without the risk of transmitting damaging load to the window. 
     The present invention intends to constitute a solution for rapid, simple and effective attachment of a glazing unit to a system used for moving the glazing unit, while offering the possibility for the window bracket to be the same, whether or not the window of the glazing unit is laminated; thus, when one vehicle series specifies laminated windows for certain models of the series and monolithic windows for other models of the series, the same window bracket can be used for both series. 
     The present invention intends to form a particularly compact and reliable solution for a curved window. 
     To this end, one subject of the invention is a glazing unit for a vehicle that can be moved heightwise, according to claim  1 . This glazing unit comprises on the one hand, a window, preferably laminated, said window having an exterior face intended to face toward an exterior space, an edge face and an interior face intended to face toward an interior space, said window comprising at least one open-ended tubular hole having a thickness, and, on the other hand, at least one window bracket having an axis passing through said window via said hole. 
     Said glazing unit is notable in that said window bracket comprises:
         a flange comprising, on the one hand, a plate positioned facing one face of said window, and preferably facing said interior face of said window, and, on the other hand, a tubular sleeve, of which a wall extends into the hole in said window along a sleeve thickness   a counter-flange comprising, on the one hand, a counter-plate positioned facing another face of said window, and preferably facing said exterior face of said window, and, on the other hand, a tubular counter-sleeve of which a wall extends along a counter-sleeve thickness into the sleeve of said flange   with said sleeve comprising, at an opposite end to said plate, at least one end stop to immobilize said counter-plate.       

     Said tubular hole in said window is open ended in the sense that it is open at one end on the exterior face of said window and at another end on the interior face of said window; it is of entirely circular cross section and lies some distance away from the edge face of said window, so is not a notch which would open onto the edge face of said window. 
     As a preference, said sleeve thickness is greater than said thickness of said window at the site of the hole; said sleeve having an axis coaxial with the axis of the hole in said window. 
     As a preference, said counter-sleeve thickness is greater than said thickness of said window at the site of the hole; said counter-sleeve having an axis coaxial with the axis of said window inside the tubular sleeve of said plate. 
     As a preference, said counter-sleeve thickness is greater than said sleeve thickness, so as to maximize the spreading of the forces of the counter-sleeve in the sleeve and thus improve the mechanical strength. 
     By nature, a tubular sleeve is hollow and a tubular counter-sleeve is hollow. The sleeve is completely tubular all along what is referred to as the “sleeve thickness” and thus in transverse section has the shape of a complete annulus all along this thickness. The counter-sleeve is completely tubular all along what is referred to as the “counter-sleeve thickness” and thus in transverse section has the shape of a complete annulus all along this thickness. 
     The internal surface of the sleeve is smooth and the external surface of the counter-sleeve is smooth; the counter-sleeve is not screwed into the sleeve but is slipped/slip into same. 
     The window bracket according to the invention has an axis passing through the window via said hole, for the passage of an attachment rod, for example threaded; it is this rod in particular that provides attachment for the window bracket, and thus for the glazing unit, to a glazing unit-moving system, so as to allow it to be moved with respect to a fixed part of the vehicle. 
     What is meant within the meaning of the present invention by “fastening” or “attachment” are mechanical attachments which can be attached and detached by hand or using a mechanical tool. That which is attached is thus in a fixed position; catching, screwing or clip-fastening are each forms of attachment. The axis of the window bracket mentioned hereinabove is thus an axis of attachment. 
     What is meant within the meaning of the present invention by “fixing” are chemical fixings which lead to molecular modifications that are irreversible unless the connection is broken making the window bracket unusable; bonding is a fixing. 
     Each of these two expressions excludes the other. 
     As a preference, in order to increase the reliability of the fixing, a layer of adhesive is situated in the hole, between said window and said sleeve. Said layer of adhesive is preferably also situated between at least one face and the plate and/or counter-plate, and more preferably still, the two faces of said window and the plate and counter-plate. 
     As a preference also, said layer of adhesive is inserted between the sleeve and the counter-sleeve, particularly at the site of the end stop or stops, in order to further improve the reliability of the fixing. 
     As a preference, to facilitate the immobilizing of the counter-plate, said flange comprises at least one, and preferably two, pin(s) which enters (enter) said counter-plate preferably with two pin(s) situated diametrically opposite one another about said axis. For better mechanical retention of the pins in the counter-plate, and a further preference, the two pins are situated directly opposite one another about the vertical. 
     As a preference, in order to improve the compactness of the window bracket, said or each pin consists of part of the wall of said sleeve which extends locally into said counter-plate, preferably along the entire thickness of said counter-plate, more preferably still without extending beyond said counter-plate. 
     As a preference, for attaching the window bracket, an attachment rod may be inserted into said counter-sleeve, this attachment rod preferably having a solid cylindrical cross section and more preferably still being threaded so that it can be screwed into said counter-sleeve. It also preferably comprises a head. 
     As a preference, to facilitate attachment of the window bracket to the system for moving the glazing unit, an intermediate support component is situated between a head of said rod and said plate; preferably on the inside. Said intermediate support component preferably has at least one finger extending against part of the edge face of said window, this finger also preferably extending against an opposite face of said window. 
     In order to achieve reliable bracing, a washer is preferably situated between a head of said attachment rod and said plate; preferably on the interior side. 
     As a preference, to increase the ease of manufacture, the tubular hole in the window is simple: it has the same diameter over its entire thickness and thus opens onto both of the two faces of the window with the same diameter; in the case of a laminated window, it is then a hole that has the same diameter in the sheets of glass and in the adhesive interlayer. 
     As a preference, the sleeve has an external diameter and an internal diameter which are both constant along the entire length of what is referred to as the “sleeve thickness”; these two diameters are preferably concentric. The counter-sleeve preferably has an external diameter and an internal diameter that are both constant along the entire length of what is referred to as the “counter-sleeve thickness”; these two diameters are preferably concentric. 
     As a preference, in order to increase the precision of the fixing, said counter-sleeve has an external diameter which is identical, to within 1.2 mm, to an internal diameter of said sleeve 
     As a preference, in order to increase the compactness, said window bracket does not have any part extending under the edge face of the window; neither the flange nor the counter-flange comprises a part that extends below the edge face of the window. 
     As a preference, the window bracket comprises no nut in the form of an independent component, so as to increase compactness, facilitate mounting and reduce weight. 
     The glazing unit according to the invention preferably comprises two window brackets. 
     Another subject of the invention is a method for producing a glazing unit for a vehicle that can be moved heightwise according to the invention, said glazing unit comprising on the one hand, a window, preferably laminated, said window having an exterior face intended to face toward an exterior space, an edge face and an interior face intended to face toward an interior space, said window comprising at least one open-ended tubular hole having a thickness, and, on the other hand, at least one window bracket having an axis passing through said window via said hole. 
     Said method is notable in that the attaching of said window bracket to said window is performed by:
         positioning a flange comprising, on the one hand, a plate facing one face of said window, and preferably facing said interior face of said window, and, on the other hand, a tubular sleeve, of which a wall extends into the hole in said window along a sleeve thickness, then   positioning a counter-flange comprising, on the one hand, a counter-plate facing one face of said window, and preferably facing said exterior face of said window, and, on the other hand, a tubular counter-sleeve of which a wall extends along a counter-sleeve thickness into the sleeve of said flange   with said sleeve comprising, at an opposite end to said plate, at least one end stop to immobilize said counter-plate.       

     Advantageously, the present invention allows a window bracket to be fixed to a glazing unit in a reliable and compact manner. A solution for compact fixing and attachment makes it possible to reduce the height and/or the thickness of the window bracket, namely respectively along the vertical axis Z of the vehicle and along the lateral axis Y of the vehicle in the case of a side glazing unit; that then makes it possible to reduce the space needed inside the door and thus increase the volume available in the vehicle interior. That further makes it possible to lighten the glazing unit. Furthermore, the invention makes it possible to reduce the distance between the axis of attachment of the window bracket and a wiping seal situated above it for the same height of window. 
     The absence of a nut makes mounting easier and prevents the time lost if the nut is dropped before being screwed on. 
     The plate and the counter-plate allow good distribution of forces on each side of the window. The window is not stressed by the window bracket; when the window is laminated, there is therefore no risk of damaging the lamination. 
    
    
     
       The following figures nonlimitingly illustrate the invention. 
         FIG. 1  illustrates a perspective view, from the inside, of a glazing unit comprising two holes, one of which is fitted with a window bracket according to the invention. 
         FIG. 2  illustrates a partial view in vertical cross section at the site of the hole in the glazing unit of  FIG. 1  which is fitted with the window bracket. 
         FIG. 3  illustrates a partial view in horizontal cross section at the site of the hole in the glazing unit of  FIG. 1  which is fitted with the window bracket. 
         FIG. 4  illustrates an exploded perspective view of the window bracket used in  FIG. 1 . 
         FIG. 5  illustrates a perspective view of the glazing unit of  FIG. 1  in an installation situation. 
         FIG. 6  illustrates a partial view in vertical cross section at the site of the hole of the glazing unit of  FIG. 5  which is fitted with the window bracket. 
         FIG. 7  illustrates a partial view in horizontal cross section at the site of the hole in the glazing unit of  FIG. 5  which is fitted with the window bracket. 
         FIG. 8  illustrates an exploded perspective view of the window bracket of  FIG. 5  with the attachment rod and the intermediate support component. 
     
    
    
     The present invention relates to a glazing unit  1  as visible in  FIG. 1  and partially in  FIGS. 2 to 4 , comprising a window  2 . The window  2  in this instance is laminated and comprises an exterior sheet of glass  3 , an interior sheet of glass  5  and an interleaved sheet of adhesive  4  situated between said two sheets of glass and in contact with these two sheets of glass. 
     The present invention is described by way of example in the context of an application as a vehicle glazing unit, this glazing unit providing separation between an exterior space E which is outside the vehicle and an interior space I which is inside the vehicle. The ideas of “exterior face” and “interior face” are therefore considered respectively with respect to this exterior space E and this interior space I. 
     In the figures, the sheets of glass are each illustrated as having a straight edge face; however, these edge faces could be rounded, with the edge corners between the edge faces and the main faces then being at a curved angle. 
     The present invention is described in particular in an application to a vehicle side glazing unit and more specifically in the context of an application to a vehicle door side window glazing unit that can be used heightwise, along the vertical;  FIG. 1  being a view in perspective, from the interior space I, of the glazing unit  1  before it is installed in a door. 
     In the context of the present document, the notion of verticality is introduced with reference to the vertical axis Z of a vehicle; the central horizontal longitudinal axis of forward travel of the vehicle equipped with the glazing unit according to the invention by way as a side glazing unit generally being the axis referred to as the axis X of the vehicle, as visible in  FIG. 1 , and the horizontal lateral axis being the axis Y (not illustrated). 
     The glazing unit  1  is intended to close an opening which in this case is formed in a door of the vehicle, the door not being illustrated. 
     The window  2  of the glazing unit  1  may be a monolithic glass window made up of a single sheet of glass but is preferably here a laminated window which, from the inside toward the outside and in contact comprises at least: the exterior sheet of glass  3 , the interlayer of adhesive  4  and the interior sheet of glass  5 ; however, it is possible for at least one other sheet to be interposed between the exterior sheet of glass  3  and the interlayer of adhesive  4  or between the interlayer of adhesive  4  and the interior sheet of glass  5 . 
     The window  2  has an exterior face  20  which faces toward the exterior space E, an interior face  22  which faces toward the interior space I and an edge face  21  situated between these two faces. In this instance, the window is curved. 
     The exterior sheet of glass  3  has an exterior face which coincides with the exterior face  20  of the window  2 , an interlayer face which faces toward the interlayer of adhesive  4 , and an edge face  31  situated between these two faces. 
     The interior sheet of glass  5  has an interlayer face facing toward the interlayer of adhesive  4 , an interior face which coincides with the interior face  22  of the window  2  and an edge face  51  situated between these two faces. 
     The interlayer of adhesive  4  has an exterior interlayer face which faces toward the interlayer face and in this instance is in contact with this interlayer face, an interior interlayer face which faces toward the interlayer face and which in this instance is in contact with this interlayer face, and an edge face  41  which is situated between these two interlayer faces. 
     The edge face  21  of the window  2  thus corresponds to the edge face  31  of the exterior sheet of glass  3 , to the edge face  41  of the interlayer sheet of adhesive  4  and to edge face  51  of the interior sheet of glass  5 , these three edge faces here being substantially continuous with one another, give or take 1 millimeter. 
     The window glazing  1  is intended to be movable heightwise and the window  2  for that purpose comprises at least one tubular hole  23 ,  23 ′, opening onto the two faces of the window, the exterior face  20  and the interior face  22 , along a thickness e 23  which is the thickness of the window all around the hole. This hole  23  has an axis and has a circular internal cross section; it does not open onto the edge face  21  of the window: it is entirely of circular cross section and is not a notch. At the site of the hole  23 , the window  2  has a thickness e 23 , for example in this instance of 6.0 mm. 
     The glazing unit  1  comprises, aside from the window  2 , near to one edge (in this instance the lower longitudinal edge), a window bracket  6 , supporting the window  2 . This window bracket  6  comprises a hole having an axis A which is intended to allow the accommodation of an attachment rod  13  that likewise has an axis and this rod, which in this instance is tubular, is intended to pass through the window  2  through the hole  23 ; it is the axis of the window bracket hole that serves as a reference for mounting the window bracket in a movement system for raising and lowering the glazing unit. 
     To make it easier to move the glazing unit heightwise, a second window bracket (not illustrated) is preferably positioned at the site of the second hole  23 ′; the glazing unit  1  in its configuration of use thus comprises preferably two window brackets  6 . 
     This window bracket  6  comprises a part extending further inward than the interior face  22  of the window and a part extending further outward than the exterior face  20  of the window, as well as a part extending under the edge face  21  of the window. 
     This window bracket  6  comprises two elements situated facing one another on each side of the window in the region of the hole  23  and collaborating with one another:
         on the one hand, a flange  7  comprising a plate  70  having an exterior face  71  which faces toward the exterior space E, an interior face  72  which faces toward the interior space I; this plate  70  is positioned, preferably without direct contact, facing one face of the window  2 , and here facing the interior face  22  of the window  2 ,   and on the other hand, a counter-flange  8  comprising a counter-plate  80  having an exterior face  81  which faces toward the exterior space E, an interior face  82  which faces toward the interior space I; this counter-plate  80  being positioned, preferably without direct contact, facing another face of the window  2 , and in this instance facing the exterior face  20  of the window  2 .       

     The window bracket is preferably made up of these two elements (these two parts which are separate prior to mounting): the flange  7  and the counter-flange  8 ; without any other element. 
     The plate  70  extends all around the hole  23  in the window, being situated further toward the inside than the interior face  22 . 
     The flange  7  further comprises a hollow tubular sleeve  73  of which a wall extends into the hole  23  in the window  2 , in this instance in the direction of the exterior, along a sleeve thickness e 73 ; this sleeve thickness e 73  is greater than the thickness e 23  so that the wall of the sleeve  73  extends both further toward the outside than the face  20  and further toward the inside than the face  22 ; said sleeve  73  has an axis which is coaxial with the axis A. The sleeve  73  is completely tubular along the entire length of the sleeve thickness e 73 ; its internal diameter and its external diameter are constant all the way along this sleeve thickness e 73 . 
     The counter-plate  80  extend all around the hole  23  in the window, further toward the outside than the exterior face  20 . 
     The counter-flange  8  further comprises a hollow tubular counter-sleeve  83 , of which a wall extends into the hole  23  of the window  2 , in this instance in the direction of the inside, over a counter-sleeve thickness e 83 ; this counter-sleeve thickness e 83  is greater than the thickness e 23  so that the wall of the counter-sleeve  83  extends both further toward the outside than the face  20  and further toward the inside than the face  22 ; the wall of the counter-sleeve  83  further extends into the sleeve  73 . The counter-sleeve  83  is completely tubular over the entire counter-sleeve thickness e 83 ; its internal diameter and its external diameter are constant all along this counter-sleeve thickness e 83 . 
     The plate  70  and the counter-plate  80  are two elements that are distinct prior to mounting; for example they are not joined together by a hinge. The plate  70  and the counter-plate  80  are not washers; they each have a surface that is fixed in the frame of reference of the window bracket; this surface furthermore has a substantial surface area in order to be able to adapt to the shape of the faces of the adjacent window and thus facilitate mounting. The surface area of the plate  70  and the counter-plate  80  is of the order of 3 to 20 times the surface area occupied by the hole  23 ; for example 10 times. 
     The sleeve  73  lies flush with the interior face  82  of the counter-plate  80  and the counter-sleeve  83  lies flush with the interior face  72  of the plate  70 . 
     At an opposite end to the plate  70  the sleeve  73  comprises an annular end stop  74  to come into contact with and immobilize the interior face  82  of the counter-plate  80 ; in that way, the counter-flange  8  is not able to travel further toward the interior space I than the position authorized by this end stop  74 . 
     The sleeve  73  further comprises, at its opposite end to the plate  70 , two pins  75 ,  75 ′ which each enter the counter-plate  80  via its interior face  82 . These two pins  75 ,  75 ′ each pass through the counter-plate  80  through an opening  85 ,  85 ′ and in this way the counter-flange is correctly oriented with respect to the flange. 
     In the position of use, the attachment rod  13  is situated in the counter-sleeve  83  and is attached to the counter-sleeve  83  and thus to counter-flange  8 . In this instance, the attachment rod  13  is threaded and is thus screwed into the counter-sleeve  83 . 
     As visible in  FIG. 4 , the plate  70  and the sleeve  73  belong to the flange  7 ; the sleeve  73  is a smooth-walled hollow cylinder which has an axis and extends along a perpendicular from the exterior face  71  of the plate  70 . Its external diameter in this instance is 18 mm and its internal diameter in this instance is 14 mm, all along the sleeve thickness e 73 . The sleeve thickness e 73 , measured from the exterior face  71 , is comprised between 6 and 10 mm and in this instance is for example 8 mm. In the glazing unit  1 , the sleeve thickness e 73 , measured from the exterior face  71  of the plate  70  as far as the interior face  82  of the counter-plate  80 . 
     Similarly, the counter-plate  80  and the counter-sleeve  83  belong to the counter-flange  8 ; the counter-sleeve  83  is a hollow cylinder which has an axis and it extends along a perpendicular from the interior face  82  of the counter-plate  80 . Its external diameter is in this instance 13 mm and its internal diameter is in this instance 6.8 mm (designed for a M8-type screwthread), all along the counter-sleeve thickness e 83 . The centripetal wall of the counter-sleeve  83  is smooth and its centrifugal wall is threaded so that the attachment rod  13  can be screwed in. The counter-sleeve thickness e 83 , measured from the interior face  82  is comprised between 8.0 and 15.0 mm, and in this instance is for example 11.5 mm. 
     The counter-sleeve thickness e 83  is thus greater than the sleeve thickness e 73  but it is entirely possible for the counter-sleeve thickness e 83  to be smaller. To facilitate the manufacture of the counter-plate  80 , for example, when it is made of a metal or of a metal alloy, it is possible to produce the counter-sleeve  83  by localized deformation (for example cracking), and then threading the interior wall of the counter-sleeve. The counter-sleeve thickness e 83  is thus identical to the sleeve thickness e 73  increased by the thickness of a pin  75 ,  75 ′. 
     The counter-flange, the counter-plate and the counter-sleeve are so named because they constitute a set of components that respectively complement the flange, the plate and the sleeve in order together to form the two essential parts of the window bracket, which are each positioned one on either side of the window, at the site of the hole. 
     The flange and the counter-flange are preferably each made of one piece and more preferably still from a single material; they are rigid; they may, one or both of them, be made of plastic or of metal or else of a metal alloy. It is notably possible for the flange  8  to be made of metal, but for the flange  7  to be made of plastic; or alternatively for the counter-flange to be made of metal but for the rest of the window bracket to be made of plastic. Metallic materials are mechanically stronger, but plastic is more lightweight. 
     Mechanical attachment of the window bracket  6  to the window  2  is performed by:
         positioning the flange  7  comprising the plate  70  so that it faces one face of the window  2 , and in this instance so that it faces the interior face  22  of the window  2 ; the flange  7  comprising a tubular sleeve  73  of a sleeve thickness e 73 , this sleeve is inserted into the hole  23  in the window  2 , in the direction of the exterior space E, so that its wall extends inside this hole  23 , then   positioning the counter-flange  8  comprising the counter-plate  80  so that it faces one face of the window  2 , and in this instance so that it faces the exterior face  20  of the window  2 ; the counter-flange  8  comprising a tubular counter-sleeve  83 , with a counter-sleeve thickness e 83 , this counter-sleeve is inserted/slid into the sleeve  73  of the flange  7  in the direction of the interior space I so that its wall extends inside this sleeve,   because the sleeve  73  comprises, at an opposite end to the plate  70 , at least one end stop  74 , this end stop immobilizes the counter-plate  80  and, therefore, the counter-flange  8 .       

     The counter-sleeve  83  has an external diameter which is identical to the internal diameter of the sleeve  73 , or else a diameter up to −1.2 mm smaller, so that the counter-sleeve  83  can slide without clearance inside the sleeve  73 . 
     The plate  70  is preferably positioned some distance from the interior face  22  of the window  2  so as to leave a space between these, and the counter-plate  80  is preferably positioned some instance away from the exterior face  20  of the window  2  so as to leave a space between these. 
     The fixing of the window bracket  6  to the window  2  is performed by the layer of adhesive  9  which is applied in the hole  23  before the flange  7  is positioned facing the face of the window  2 , and in this instance facing the interior face  22  of the window  2 . 
     This layer of adhesive  9  is preferably also applied to the exterior face  71  of the plate  70  and/or to the interior face  22  of the window  2  before the flange  7  is positioned facing the interior face  22  of the window  2 . It is thus situated in the space between the exterior face  71  and the interior face  22 , preferably filling this entire space. 
     This layer of adhesive  9  is preferably also applied to the interior face  82  of the counter-plate  80  and/or to the exterior face  20  of the window  2  before the counter-flange  8  is positioned facing the exterior face  20  of the window  2 . It is thus situated in the space between the interior face  82  and the exterior face  20 , preferably filling this entire space. 
     The layer of adhesive  9  is illustrated schematically in  FIG. 4 ; it is possible to replace this layer of adhesive with a flexible seal of similar size, for example made of silicone, including a flexible seal which is able to create adhesion with the materials in contact with it, for example through the application of heat. 
     The sleeve  73  comprises, at an opposite end to the plate  70 , to which it is connected, two pins  75 ,  75 ′ each of which enters an opening  85 ,  85 ′ formed through the counter-plate  80 ; these end stops (and, respectively, these openings) are preferably situated diametrically opposite one another about said axis A and more preferably still are situated diametrically opposite one another about the vertical. 
     Each pin  75 ,  75 ′ is made up of a projecting part of the wall of the sleeve  73  which extends locally into the counter-plate  80 , preferably along the entirety of the thickness of the counter-plate  80 , more preferably still, without extending beyond the counter-plate  80 . 
     The axis A of the window bracket is the axis of the counter-sleeve  83 ; it is also that of the sleeve  73  because the counter-sleeve is fitted without clearance into the sleeve. 
     For the sake of convenience, it is considered here for the purposes of the description of the invention, that the axis A of the window bracket  6  is coincident with that of the hole  23  in the window. In reality, it is the axis of the counter-sleeve  83 , incidentally the axis of the attachment rod  13  when introduced into this counter-sleeve, that constitutes the reference for attaching the glazing unit in the movement system. In effect, it is entirely possible for the axis of the hole  23  not to be positioned correctly in space with respect to the overall dimensions of the window and points of reference of the window; however, the space between the sleeve  73  and the hole  23  allows the introduction of clearance between these which will be used to perfectly position this sleeve  73  and then the counter-sleeve  83  so that both have their axes parallel in space and so that this axis, which will then be the axis of the attachment rod  13  when it is in the counter-sleeve  83 , is correctly oriented in space with respect to that which is required for correct operation of the window movement system. 
       FIGS. 4 to 8  illustrate the glazing unit  1  with, in addition, part of the movement system. 
     When the glazing unit is being attached in the movement system, the attachment rod  13  is introduced into the counter-sleeve  83  and is attached to the counter-flange  8  by means of the counter-sleeve; the attachment rod  13  could be clipped into counter-sleeve  83  but is preferably screwed into the counter-sleeve  83  in order to give high mechanical strength; the counter-sleeve thus acts as a nut and the glazing unit therefore does not comprise any independent nut at the site of the window bracket. 
     The attachment rod  13  for fixing the window bracket in this instance has a solid cylindrical cross section and is threaded on its surface. It also comprises a head  14 . 
     An intermediate support component  11  is also provided between the head  14  of the rod  13  to allow the window bracket to be attached to a lifting system. This may be a component referred to as a “regulator”. 
     This intermediate support component  11  preferably having at least one finger  12  extending against part of the edge face  21  of said window  2 , this finger  12  also preferably extending against the exterior face  20  of the window  2 . It essentially acts as a protective end stop when the window is being installed in the door. 
     This intermediate support component  11  has a hole for the passage of the attachment rod  13 , of a diameter similar to the diameter of the hole  23  in the window. The intermediate support component  11  is not in contact with the counter-sleeve  83 , so as to make position adjustment easier. 
     In the version illustrated, a washer  10  is situated between the head  14  of the attachment rod  13  and the intermediate support component  11  in order to provide bracing; in this instance on the interior side. 
     The fact that the sleeve  73  comprises an end stop  75  to immobilize the counter-plate  80  makes it possible to create a spacer between the flange  7  and the counter-flange  8 , which means to say that the space between them is controlled by this end stop. They press mechanically against one another making it possible to create a window bracket that is particularly strong, regardless of the fragility of the window. 
     This spacer is the thickness that is common to the two thicknesses; the sleeve e 73  and the counter-sleeve thickness e 83 . 
     Furthermore, this spacer is larger than the thickness of the window at the site of the hole  23  and thus offers the possibility of adjusting the positioning of the axis common to the two flanges (the axes of the sleeve  73  and of the counter-sleeve  83 , which are coincident) to make it correspond exactly to the desired positioning in space for correct operation of the window moving system, and do so even if, initially the axis of the hole  23  is not correctly positioned in space. 
     When the flange  7  and the counter-flange  8  are not in direct contact with the window  2  it is possible to make them from metal or from a metal alloy. When the flange  7  and the counter-flange  8  are made of metal or of metal alloy they are particularly mechanically strong. 
     The window bracket  6  is particularly compact; its total thickness e 6  is of the order of 14 mm.