FR2577482A1 - Fixed window pane for a motor vehicle, equipped with reversible mechanical retaining means - Google Patents

Abstract

The window pane comprises an adhering elastomeric surrounding seal including a plurality of inserts 14 which are overmoulded and adhering, each of which comprises a means 15 for interacting with a threaded retaining member 17 which can be applied from inside the bodywork 10, the said means passing through corresponding holes 16 in the projecting edge 11 which surrounds the opening for accommodating the window pane 12, and being capable of joining the window pane to the projecting edge by pulling it into forced contact with the latter to produce a suitable deformation of the seal for the purpose of sealing.

Description

Fixed window for motor vehicle provided with means of

reversible mechanical retainer.

  The present invention relates to a fixed window for a motor vehicle. As is known, the windows for motor vehicles are currently assembled to the body of the vehicle with the interposition of a seal made of elastomeric material provided with a perimeter lip suitable for engaging astride a projecting edge surrounding the housing opening of the glass. The mounting of the glass, to which the perimeter elastomeric seal is previously assembled, is carried out with the known system of the cord by means of which the lip of the seal is spread so as to position it astride the projecting edge while exercising at the same time time a press

on the glass.

  This known and laborious mounting method is not automated.

  ble and, in particular, cannot be implemented by means of robotic devices, the distribution of which is known to be increasingly widespread in large-scale manufacturing

series.

  The object of the invention is to remedy this drawback and to provide a fixed window for a motor vehicle requiring substantially simplified assembly operations, which can be fully automated, and which can be executed by systems.

  relatively simple structure.

  Another object of the invention is to provide a fixed window for a motor vehicle using exclusively mechanical assembly operations and therefore reversible in the sense that they allow direct disassembly without auxiliary operations such as those which are essential in chemical welded assemblies, implemented using adhesive or the like and proposed to replace the current cord process for the purpose

  to allow the automation of assembly systems.

  To get these results, and others that will emerge

  from the detailed description below, the present invention

  is based on the rubber-glass adhesion process described in Patent Application N 83 16 581 filed on 18.10.1983 in the name of the Applicant, process by which an intimate cohesion is obtained between the rubber of the perimeter seal and the glass thanks molecular adhesion which occurs during the dimensional shaping of the rubber (molding) and its simultaneous transformation of the phase

plastic in the elastic phase.

  In the present description, a bonded elastomeric seal

  intimately to the window according to the teaching of the aforementioned previous Patent Application will be said to simplify

"adherent" to the glass.

  The subject of the invention is a fixed window pane for a motor vehicle, characterized in that it comprises a perimeter seal in adherent elastomer, including a plurality of molded and adherent inserts, each of which comprises means for cooperating with a threaded retaining member. applicable from the interior of the bodywork, said means passing through corresponding holes in the projecting edge which surrounds the opening for housing the window and being suitable for bonding the window to the projecting edge by pulling it into forced contact therewith to produce appropriate deformation

of the seal for sealing.

  Other characteristics and advantages of the invention

  will emerge from the detailed description given below

  by way of illustration and not limitation, and of the accompanying drawings, in which: - Figure 1 is a partial cross-sectional view of a window pane according to the invention showing in detail the threaded retaining members and their arrangement relative to the projecting edge ; - Figure 2 is a view similar to Figure 1, illustrating a different but equivalent configuration of the organs

retaining threads.

  In the drawings, 10 indicates the bodywork of the motor vehicle, 11 the projecting edge surrounding the window opening and 12 the window itself. The window 12 is provided with a perimeter elastomeric seal 13 adhering thereto in the direction specified above and is obtained by molding according to the methods described in the Request

  Patent pending in the name of the Applicant.

  According to the present invention, a plurality of inserts 14

  are embedded in the joint 13 and adhere to it by overmolding.

  These inserts 14 are advantageously made of polymer material,

  preferably in material known by the trade name

  ciale "NYLON", loaded with inert fibers chosen from the following group: glass fibers, carbon fibers,

aromatic polyamide fibers.

  Each insert comprises a cylindrical rod 15 provided with an axial hole and protruding from the joint, and suitable for passing through a corresponding hole 16 of the projecting lord 11. A plurality of holes 16 are provided on the edge 11 corresponding to the plurality of inserts 14 provided on the perimeter seal 13.In the axial hole of each

  rod 15 engages a screw 17, advantageously of the self-

  tapping, which is screwed from the inside of the body after the glass has been placed against the projecting edge 11. The head of each screw 17 reacts on the shoulder 18 of a corresponding seat 19 provided in a cover rigid internal seal 20, and in this way pulls the seal 13 in forced contact with the edge 11 and deforms it for sealing, the joint cover 20 being at the same time

assembled at the protruding edge.

  In Figure 2, the insert 14 is provided with a threaded rod on which engages a clamping nut 31 reacting, in a manner completely identical to that previously described, on the shoulder 18 of the corresponding seat 19

provided on the joint cover 20.

  It is advantageous for the rod 30 to be removably attached to the insert 14 for replacement by

  breakage or deterioration. In addition, to satisfy

  make special aesthetic requirements, the seats 19 of the joint cover 20 can be closed by plugs

  removable of known type, not shown in the figure.

  It goes without saying that the present invention is not limited to the embodiments described and shown, but extends to the embodiments providing results.

  equivalent using the same inventive concept.

Claims (4)

Claims.   1. Fixed window for a motor vehicle, characterized in that it comprises a perimeter seal in adherent elastomer, including a plurality of molded and adherent inserts (14), each of which comprises means (15) for cooperating with a threaded member of retainer (17) applicable from the inside of the body (10), said means passing through corresponding holes (16) of the projecting edge (11) which surrounds the opening for housing the window (12) and being suitable for binding the window at the protruding edge by pulling it into forced contact therewith to produce a   appropriate deformation of the seal for sealing.   2. Glass according to claim 1, characterized in that   that each insert has a cylindrical rod 15 present   as an axial hole into which engages a self-tapping screw (17) which reacts on the bottom shoulder (18) of a corresponding seat (19) provided on a rigid joint cover (20), the screw exerting the double glass retaining function and joint cover.   3. Glass according to claim 1, characterized in that each insert comprises a threaded rod (30) with which a clamping nut (31) cooperates reacting on the bottom shoulder (18) of a corresponding seat (19) provided on a rigid joint cover (20), the nut exerting   the double retaining function of the glass and the joint cover.   4. Glass according to claim 3, characterized in that the threaded rod is removably attached to the insert for replacement in the event of breakage or deterioration.