EP0801201A1 - System for fixing a toughened glass sheet and accordingly equipped glass sheet - Google Patents

System for fixing a toughened glass sheet and accordingly equipped glass sheet Download PDF

Info

Publication number
EP0801201A1
EP0801201A1 EP97400699A EP97400699A EP0801201A1 EP 0801201 A1 EP0801201 A1 EP 0801201A1 EP 97400699 A EP97400699 A EP 97400699A EP 97400699 A EP97400699 A EP 97400699A EP 0801201 A1 EP0801201 A1 EP 0801201A1
Authority
EP
European Patent Office
Prior art keywords
hole
glass sheet
conical
countersunk hole
force
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP97400699A
Other languages
German (de)
French (fr)
Other versions
EP0801201B1 (en
Inventor
Jacques Ernewein
Yves Demars
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Original Assignee
Saint Gobain Vitrage SA
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 Saint Gobain Vitrage SA filed Critical Saint Gobain Vitrage SA
Publication of EP0801201A1 publication Critical patent/EP0801201A1/en
Application granted granted Critical
Publication of EP0801201B1 publication Critical patent/EP0801201B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E05D5/0246—Parts for attachment, e.g. flaps for attachment to glass panels
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/5436—Fixing of glass panes or like plates involving holes or indentations in the pane
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E05D5/0246—Parts for attachment, e.g. flaps for attachment to glass panels
    • E05D2005/0253—Parts for attachment, e.g. flaps for attachment to glass panels the panels having conical or stepped recesses
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form or shape
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/67—Materials; Strength alteration thereof
    • E05Y2800/672—Glass
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • the present invention relates to an assembly system between a glass sheet, in particular glass having undergone a surface reinforcement treatment, in particular thermal or chemical, comprising at least one milled hole and either another glass sheet or a structural element in particular metallic, as well as a sheet of glass equipped with such a system and the application of such a sheet to the production of a prefabricated assembly.
  • a glass sheet in particular glass having undergone a surface reinforcement treatment, in particular thermal or chemical, comprising at least one milled hole and either another glass sheet or a structural element in particular metallic, as well as a sheet of glass equipped with such a system and the application of such a sheet to the production of a prefabricated assembly.
  • the present invention aims to provide a solution to this problem.
  • the invention provides an assembly system between a glass sheet having a countersunk hole at least on one side and either another sheet of glass, that is to say a structural element, in particular metallic, the system comprising a connecting piece, the particularity of this system being that the connecting piece has two parts, one of which conforms to the conical surface of the countersunk hole on which a force substantially parallel to the axis of the hole and the other of which rests on the side of the sheet opposite to the milling of the hole to withstand the reaction to said force, and that this force is sufficient to establish on the surface of the sheet of glass at rest, a system of compression constraints with a minimum located at a distance from the edge of the milled hole greater than 1% of the maximum diameter of this hole.
  • the system of the invention makes it possible to prevent extension stresses, liable to cause cracking on the walls of the hole and therefore the rupture of the glass sheet, from appearing under the effect of the forces transmitted by the another sheet of glass or the structural element.
  • the part of the connecting piece which follows the conical surface of the countersunk hole has a cone opening angle greater than that of the cone of the countersunk hole, the half-angles at the top of the cones advantageously differing from 0.5 to 5 °.
  • the contact between the countersunk hole and the conical part of the support piece is located as close as possible to the surface which carries the countersunk part of the hole, which is favorable for compressing the surrounding area. the hole.
  • the part of the connecting piece which follows the conical surface of the countersunk hole is metallic and there is interposed between it and the countersunk hole a sleeve of a malleable material such as aluminum.
  • the countersunk hole is truncated and ends on the surface of the sheet opposite by a coaxial cylindrical part and, advantageously, in this case no element of the connecting piece is in contact with the cylindrical part of the countersunk hole.
  • the connecting piece is a screw-nut system.
  • the two parts of the connecting piece are crimped on one another. This embodiment is less expensive but does not allow adjustment.
  • the invention also provides a sheet of tempered glass with a thickness of at least 6 mm, having at least one milled hole on one of its surfaces, and which has the particularity that it has inside the milled hole a conical part and on the opposite surface a reaction part, that a force directed substantially along the axis of the hole is exerted between the conical part and the reaction part, and that this force is such that, if the glass sheet is subjected to an external stress provided in advance, the result in the glass sheet is a system of surface compressive stresses which has a minimum located at a distance from the edge of the milled hole greater than 1% of the maximum diameter of this hole .
  • this glass sheet has a doubly countersunk hole with a conical part opening out on either side and a cylindrical middle part which has substantially the same axis as the conical parts, it has inside each part taper a tapered piece, a force directed along the axis of the hole is exerted between the two tapered pieces and this force is such that, if the glass sheet is subjected to an external stress provided in advance, it results in the glass sheet a system of surface compressive stresses which has a minimum located at a distance from the edge of the milled hole greater than 1% of the maximum diameter of this hole.
  • the conical part or parts have an opening angle of the cone greater than that of the cone of the corresponding countersunk hole.
  • the conical part or parts and optionally the reaction part on the opposite surface are equipped with gripping means such as holes, bosses, etc. to transmit forces directed substantially in the plane of the glass sheet either to a structural element or to another glass sheet.
  • FIG. 1 shows an assembly system between a toughened glass plate 1 and a structure S which can be, depending on the case, a load-bearing structure or a supported structure, or else a connecting element or another toughened glass plate or no.
  • the plate 1 is pierced with a countersunk hole 2, which has a conical part 3, which opens onto a face 4 of the plate 1 opposite the structure S and a cylindrical part 5 which opens onto the opposite face 6 of the plate.
  • the assembly system comprises a first part 7, which has a conical surface 8 which conforms to the shape of the conical part 3 of the hole 2 and a cylindrical part 9, which penetrates into the cylindrical part 5 of the hole 2, without reaching the opposite face 6.
  • This cylindrical part 9 is of smaller diameter than that of the cylindrical part 10.
  • the part 7 is crossed by a bore 10, in two parts of different diameter, separated by a shoulder 11. The larger diameter portion corresponds substantially to the conical portion 8, while the smaller diameter portion passes through the cylindrical portion 9.
  • a screw 12 is housed in the bore 10, its head resting on the shoulder 11.
  • the threaded part 13 of the screw 12 is screwed into a nut 14 which constitutes the reaction part of the system, and comes to bear against the face 6 of the glass plate 1, by l 'through a washer of polyethylene plastic 15.
  • the end of the screw 12 is still screwed into a bore 16 of the structure S and is blocked by a lock nut 17.
  • the tightening of the nut 14 on the screw 12 generates, between the conical surface 3 of the countersunk hole 2 the opposite face 6 of the plate, a force substantially parallel to the axis of the hole, and which at rest tends to create a compressive stress in the material surrounding the hole.
  • Mathematical calculations for example by the method of tensor calculation or that of calculation by finite elements, make it possible to determine the relation between the tightening force and the extent of the zone surrounding the hole which is thus subjected to a compressive stress , if we know the geometric and mechanical characteristics of the plate and the hole.
  • the minimum dimension of 1 mm for the compression zone surrounding the hole at rest has been determined experimentally to avoid the appearance of dangerous stress conditions in the wall of the hole when the plate is subjected to external stresses that it can bear otherwise.
  • the determination of the force to be applied to achieve the conditions of the invention will be done with the methods of analysis of usual constraints, in particular optical methods. It is a question of observing the displacement of the zone where the minimum surface compressive stress appears. The stronger the clamping force, the more this area moves away from the edge of the countersunk hole. Observation in polarized light, or finer measurements derived for example from the EPIBIASCOPE, makes it possible to determine what is the force necessary to move the area in question to the desired distance from the edge of the milled hole, for example 1 mm.
  • Figure 2 describes a structure quite similar to that of Figure 1, suitable for the case where, instead of a single glass plate, we are in the presence of a laminated plate formed by two glass sheets 1A, 1B.
  • the nut 14 comes to bear on only one of the glass sheets for example, here, that which is furthest from the structure S.
  • the nut 14 is housed in a hole 18 in the plate glass 1B.
  • the structure S has been shown as coming directly to bear on the glass plate 1B, with however the interposition of a plastic washer 19.
  • Figure 3 differs in only a few points from that of Figure 1: the part 7 does not have a through bore 10 and the screw 12 is eliminated.
  • the cylindrical part 9 extends beyond the face 6 of the glass plate 1. It is provided with a thread 20 and cooperates directly with the nut 14.
  • the part 7 has a blind cavity 21, which opens out on the side of the nut 14. In this cavity is housed a rod 22 for connection to the structure S, not shown.
  • the rod 22 is mounted so as to be able to present slight oscillations, in a manner which is described in detail in the document EP-A-0 655 543 mentioned above.
  • FIG. 3 being on a larger scale, allows a better view of the nature of the contact between the frustoconical parts of the hole 2 and of the part 7.
  • Figure 3 is a section made before tightening the device.
  • the half-angle at the top of the frustoconical part 3 of the hole 2 is 45 °.
  • the frustoconical surface 8 of the part 7 has a slightly higher apex half-angle, of 46 °. This angular difference, combined with the choice of diameters means that the part 7 comes into contact with the hole 2 only at the point where the latter opens onto the face 4 of the glass slide.
  • the part 2 being made of “304 stainless steel” metal, there is provided, between the part 7 and the conical part of the hole, a frustoconical washer 23 made of aluminum intended to avoid local stresses.
  • the two faces of the frustoconical washer 23 each have a half-angle at the top of 46 °, like the part 7.
  • the aluminum is here preferred to a plastic material because of its greater stability over time.
  • FIG. 4 shows an embodiment in accordance with the invention, for the assembly of two tempered glass plates.
  • Two plates 1A, 1B have countersunk holes 2A, 2B in opposite directions, in which parts 7A, 7B are engaged identical to those of FIG. 1.
  • the screw 12 is single, it penetrates into the bore 10A of part 7A , and in the bore 10B of the part 7B, and is screwed into a nut 30, which abuts on a shoulder 11B of the hole 10B.
  • Plastic (polyethylene) rings 31, 30A, 30B are interposed between the two glass sheets.
  • FIG. 5 schematically shows a variant in which the part 7 and the nut 14 are identical parts, placed symmetrically in the hole 2.
  • the part 7 and the nut 14 have frustoconical parts having an angle at the top of 46 °, while the hole has two opposite frustoconical parts 3A, 3B placed symmetrically and having an apex angle of 45 ° and separated by a cylindrical part 5.
  • the tightening is ensured by a threaded rod 40, which passes through the parts 7 and 14 and two nuts 41, 42 which are screwed on the rod 40.
  • An extension 43 of the rod 40 is used for fixing the assembly on a support structure , not shown.
  • Figure 6 shows an embodiment with a double milling hole.
  • the first part 7, which comes to marry a first frustoconical part 3A of the hole is connected to the reaction part 14, which marries the other frustoconical part 3B, by a connecting part 44, which has the shape of a head screw , whose threaded rod 45 is screwed into the reaction part 14n and the head 46 is housed with clearance in a cavity 47 of the part 7 by bearing on a shoulder 48 from the bottom of the cavity.
  • a central bore 49 passes through the connecting piece 45. It is intended to receive a structural element forming a fixing means, not shown.
  • FIG. 7 represents an assembly of two laminated plates 50, 51, each formed from two sheets of tempered glass 50A, 50B and 51A, 51B.
  • an "internal" sheet 50A goes less far than the outer sheet 50B and, similarly, the inner sheet 51A goes less far than the outer sheet 51B.
  • the sheet 50A comes to bear on the sheet 51B and the sheet 51A comes to bear on the sheet 50B.
  • Assemblies 52, 53 similar to those of FIG. 4 connect the sheets 50A, 51B and 51A, 50B together.
  • the sheets 50B and 51B have holes 54, 55 which are opposite the respective assemblies in order to allow the establishment and the tightening.
  • the arrangement of the assemblies 52, 53 and the holes 54, 55 is calculated to avoid weakening of the assembly. In particular, we will avoid putting them on the same vertical, at a short distance from each other.
  • the invention applies not only to glass, but to all fragile materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Fluid-Damping Devices (AREA)
  • Lock And Its Accessories (AREA)
  • Surgical Instruments (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Connection Of Plates (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

The connection between a toughened glass sheet (1) having a reamed hole and another glass sheet or metal structure comprises two parts. One part (7), which fits the hole conical surface (3), has a force perpendicular to the hole axis exerted on it. The other (14) is supported on the side (6) of the sheet opposite the reamed holed and supports the reaction force. The force is sufficient to establish on the glass sheet a system of minimum localised compression restraints at a distance from the hole edge greater than 1% of the hole maximum diameter. The metal connecting piece part fitting the reamed hole conical surface has a cone opening angle greater than that of the hole. An aluminium sleeve (23) is interposed between the connecting piece and the hole to avoid excessive local constraints.

Description

La présente invention est relative à un système d'assemblage entre une feuille de verre, en particulier de verre ayant subi un traitement de renforcement superficiel notamment thermique ou chimique, comportant au moins un trou fraisé et, soit une autre feuille de verre, soit un élément de structure notamment métallique, ainsi qu'à une feuille de verre équipée d'un tel système et à l'application d'une telle feuille à la réalisation d'un ensemble préfabriqué.The present invention relates to an assembly system between a glass sheet, in particular glass having undergone a surface reinforcement treatment, in particular thermal or chemical, comprising at least one milled hole and either another glass sheet or a structural element in particular metallic, as well as a sheet of glass equipped with such a system and the application of such a sheet to the production of a prefabricated assembly.

Dans le document EP-A-0 655 543, la demanderesse a décrit un système d'assemblage entre un élément vitré comportant un trou fraisé et une structure porteuse, ce système comportant une pièce de liaison entre deux parties dont l'une, tronconique épouse la surface conique du trou fraisé et dont l'autre, formant partie de réaction, s'appuie sur la surface de la feuille opposée au fraisage du trou. Une liaison par vissage entre ces deux parties permet de serrer la pièce de liaison dans le trou.In document EP-A-0 655 543, the applicant has described an assembly system between a glazed element comprising a countersunk hole and a support structure, this system comprising a connecting piece between two parts, one of which, frustoconical fits the conical surface of the milled hole, the other of which, forming a reaction part, rests on the surface of the sheet opposite to the milling of the hole. A screw connection between these two parts makes it possible to tighten the connecting piece in the hole.

La présente invention a pour but d'apporter une solution à ce problème.The present invention aims to provide a solution to this problem.

Pour obtenir ce résultat, l'invention fournit un système d'assemblage entre une feuille de verre comportant un trou fraisé au moins d'un côté et, soit une autre feuille de verre, soit un élément de structure notamment métallique, le système comportant une pièce de liaison, la particularité de ce système étant que la pièce de liaison comporte deux parties dont l'une épouse la surface conique du trou fraisé sur laquelle s'exerce une force sensiblement parallèle à l'axe du trou et dont l'autre s'appuie sur le côté de la feuille opposé au fraisage du trou pour y supporter la réaction à ladite force, et que cette force est suffisante pour établir à la surface de la feuille de verre au repos, un système de contraintes de compression avec un minimum localisé à une distance du bord du trou fraisé supérieure à 1 % du diamètre maximal de ce trou.To obtain this result, the invention provides an assembly system between a glass sheet having a countersunk hole at least on one side and either another sheet of glass, that is to say a structural element, in particular metallic, the system comprising a connecting piece, the particularity of this system being that the connecting piece has two parts, one of which conforms to the conical surface of the countersunk hole on which a force substantially parallel to the axis of the hole and the other of which rests on the side of the sheet opposite to the milling of the hole to withstand the reaction to said force, and that this force is sufficient to establish on the surface of the sheet of glass at rest, a system of compression constraints with a minimum located at a distance from the edge of the milled hole greater than 1% of the maximum diameter of this hole.

Le système de l'invention permet d'éviter que des contraintes d'extension, susceptibles de causer une fissuration sur les parois du trou et donc la rupture de la feuille de verre, n'apparaissent sous l'effet des efforts transmis par l'autre feuille de verre ou l'élément de structure. La valeur de 1 % indiquée résulte d'expériences menées sur une très large gamme d'épaisseurs de feuille et de diamètres de trou.The system of the invention makes it possible to prevent extension stresses, liable to cause cracking on the walls of the hole and therefore the rupture of the glass sheet, from appearing under the effect of the forces transmitted by the another sheet of glass or the structural element. The value of 1% indicated results from experiments carried out on a very wide range of sheet thicknesses and hole diameters.

De préférence, la partie de la pièce de liaison qui épouse la surface conique du trou fraisé possède un angle d'ouverture du cône supérieur à celui du cône du trou fraisé, les demi-angles au sommet des cônes différant avantageusement de 0,5 à 5°.Preferably, the part of the connecting piece which follows the conical surface of the countersunk hole has a cone opening angle greater than that of the cone of the countersunk hole, the half-angles at the top of the cones advantageously differing from 0.5 to 5 °.

De cette façon, le contact entre le trou fraisé et la partie conique de la pièce d'appui est situé au plus près possible de la surface qui porte la partie fraisée du trou, ce qui est favorable à une mise en compression de la zone entourant le trou.In this way, the contact between the countersunk hole and the conical part of the support piece is located as close as possible to the surface which carries the countersunk part of the hole, which is favorable for compressing the surrounding area. the hole.

De préférence, la partie de la pièce de liaison qui épouse la surface conique du trou fraisé est métallique et on interpose entre elle et le trou fraisé un manchon d'un matériau malléable tel que de l'aluminium.Preferably, the part of the connecting piece which follows the conical surface of the countersunk hole is metallic and there is interposed between it and the countersunk hole a sleeve of a malleable material such as aluminum.

De préférence aussi le trou fraisé est tronqué et se termine sur la surface de la feuille opposée par une partie cylindrique coaxiale et, avantageusement, dans ce cas aucun élément de la pièce de liaison n'est au contact de la partie cylindrique du trou fraisé.Preferably also the countersunk hole is truncated and ends on the surface of the sheet opposite by a coaxial cylindrical part and, advantageously, in this case no element of the connecting piece is in contact with the cylindrical part of the countersunk hole.

Suivant un mode de réalisation intéressant, la pièce de liaison est un système vis-écrou.According to an interesting embodiment, the connecting piece is a screw-nut system.

Suivant un autre mode de réalisation, les deux parties de la pièce de liaison sont serties l'une sur l'autre. Ce mode de réalisation est moins coûteux mais ne permet pas de réglage.According to another embodiment, the two parts of the connecting piece are crimped on one another. This embodiment is less expensive but does not allow adjustment.

L'invention fournit aussi une feuille de verre trempé d'une épaisseur d'au moins 6 mm, présentant au moins un trou fraisé sur une de ses surfaces, et qui a pour particularités qu'elle comporte à l'intérieur du trou fraisé une pièce conique et sur la surface opposée une pièce de réaction, qu'une force dirigée sensiblement selon l'axe du trou s'exerce entre la pièce conique et la pièce de réaction, et que cette force est telle que, si la feuille de verre est soumise à une contrainte extérieure prévue à l'avance, il en résulte dans la feuille de verre un système de contraintes superficielles en compression qui présente un minimum situé à une distance du bord du trou fraisé supérieure à 1 % du diamètre maximal de ce trou.The invention also provides a sheet of tempered glass with a thickness of at least 6 mm, having at least one milled hole on one of its surfaces, and which has the particularity that it has inside the milled hole a conical part and on the opposite surface a reaction part, that a force directed substantially along the axis of the hole is exerted between the conical part and the reaction part, and that this force is such that, if the glass sheet is subjected to an external stress provided in advance, the result in the glass sheet is a system of surface compressive stresses which has a minimum located at a distance from the edge of the milled hole greater than 1% of the maximum diameter of this hole .

Suivant une réalisation intéressante, cette feuille de verre présente un trou doublement fraisé avec une partie conique débouchant de part et d'autre et une partie médiane cylindrique qui possède sensiblement le même axe que les parties coniques, elle comporte à l'intérieur de chaque partie conique une pièce conique, une force dirigée selon l'axe du trou s'exerce entre les deux pièces coniques et cette force est telle que, si la feuille de verre est soumise à une contrainte extérieure prévue à l'avance, il en résulte dans la feuille de verre un système de contraintes superficielles en compression qui présente un minimum situé à une distance du bord du trou fraisé supérieure à 1 % du diamètre maximal de ce trou.According to an interesting embodiment, this glass sheet has a doubly countersunk hole with a conical part opening out on either side and a cylindrical middle part which has substantially the same axis as the conical parts, it has inside each part taper a tapered piece, a force directed along the axis of the hole is exerted between the two tapered pieces and this force is such that, if the glass sheet is subjected to an external stress provided in advance, it results in the glass sheet a system of surface compressive stresses which has a minimum located at a distance from the edge of the milled hole greater than 1% of the maximum diameter of this hole.

De préférence la ou les pièces coniques possèdent un angle d'ouverture du cône supérieur à celui du cône du trou fraisé correspondant.Preferably the conical part or parts have an opening angle of the cone greater than that of the cone of the corresponding countersunk hole.

De façon avantageuse la ou les pièces coniques et éventuellement la pièce de réaction sur la surface opposée sont équipées de moyens de préhension tels que trous, bossages, etc. pour transmettre des efforts dirigés sensiblement dans le plan de la feuille de verre soit à un élément de structure, soit à une autre feuille de verre.Advantageously, the conical part or parts and optionally the reaction part on the opposite surface are equipped with gripping means such as holes, bosses, etc. to transmit forces directed substantially in the plane of the glass sheet either to a structural element or to another glass sheet.

Une application intéressante d'une telle feuille consiste dans la réalisation d'ensembles formés d'éléments préfabriqués assemblés sur chantier.An interesting application of such a sheet consists in making assemblies made up of prefabricated elements assembled on site.

La présente invention va maintenant être exposée de façon plus détaillée à l'aide d'exemples pratiques illustrés avec les dessins qui sont des coupes transversales de systèmes conformes à l'invention et qui représentent respectivement :

  • figure 1 : un système d'assemblage entre une plaque en verre trempé et une structure,
  • figure 2 : un système d'assemblage entre une plaque faite de deux verres trempés feuilletés et une structure,
  • figure 3 : un système d'assemblage avec articulation (entre plaque trempée et structure),
  • figure 4 : un système d'assemblage entre deux plaques en verre trempé, et
  • figure 5 : une plaque trempée équipée d'une pièce lui permettant de supporter des efforts importants dans son plan, et
  • figure 6 : une variante de la figure 5,
  • figure 7 : un assemblage de deux plaques de verre feuilleté avec deux systèmes selon l'invention.
The present invention will now be explained in more detail with the aid of practical examples illustrated with the drawings which are cross-sections of systems according to the invention and which represent respectively:
  • FIG. 1 : an assembly system between a tempered glass plate and a structure,
  • FIG. 2 : an assembly system between a plate made of two laminated toughened glasses and a structure,
  • FIG. 3 : an assembly system with articulation (between hardened plate and structure),
  • FIG. 4 : an assembly system between two tempered glass plates, and
  • FIG. 5 : a hardened plate fitted with a part allowing it to withstand significant forces in its plane, and
  • FIG. 6 : a variant of FIG. 5,
  • Figure 7 : an assembly of two laminated glass plates with two systems according to the invention.

La figure 1 montre un système d'assemblage entre une plaque de verre trempé 1 et une structure S qui peut être, selon le cas, une structure porteuse ou une structure portée, ou encore un élément de liaison ou une autre plaque de verre trempé ou non. FIG. 1 shows an assembly system between a toughened glass plate 1 and a structure S which can be, depending on the case, a load-bearing structure or a supported structure, or else a connecting element or another toughened glass plate or no.

La plaque 1 est percée d'un trou fraisé 2, qui comporte une partie conique 3, qui débouche sur une face 4 de la plaque 1 opposée à la structure S et une partie cylindrique 5 qui débouche sur la face opposée 6 de la plaque. Le système d'assemblage comprend une première pièce 7, qui présente une surface conique 8 qui vient épouser la forme de la partie conique 3 du trou 2 et une partie cylindrique 9, qui pénètre dans la partie cylindrique 5 du trou 2, sans atteindre la face opposée 6. Cette partie cylindrique 9 est de diamètre inférieur à celui de la partie cylindrique 10. La pièce 7 est traversée par un alésage 10, en deux parties de diamètre différent, séparées par un épaulement 11. La partie à plus grand diamètre correspond sensiblement à la partie conique 8, alors que la partie de diamètre plus faible traverse la partie cylindrique 9. Une vis 12 est logée dans l'alésage 10, sa tête venant en appui sur l'épaulement 11. La partie filetée 13 de la vis 12 se visse dans un écrou 14 qui constitue la partie de réaction du système, et vient en appui contre la face 6 de la plaque de verre 1, par l'intermédiaire d'une rondelle de matière plastique polyéthylène 15. L'extrémité de la vis 12 se visse encore dans un alésage 16 de la structure S et est bloquée par un contre-écrou 17.The plate 1 is pierced with a countersunk hole 2, which has a conical part 3, which opens onto a face 4 of the plate 1 opposite the structure S and a cylindrical part 5 which opens onto the opposite face 6 of the plate. The assembly system comprises a first part 7, which has a conical surface 8 which conforms to the shape of the conical part 3 of the hole 2 and a cylindrical part 9, which penetrates into the cylindrical part 5 of the hole 2, without reaching the opposite face 6. This cylindrical part 9 is of smaller diameter than that of the cylindrical part 10. The part 7 is crossed by a bore 10, in two parts of different diameter, separated by a shoulder 11. The larger diameter portion corresponds substantially to the conical portion 8, while the smaller diameter portion passes through the cylindrical portion 9. A screw 12 is housed in the bore 10, its head resting on the shoulder 11. The threaded part 13 of the screw 12 is screwed into a nut 14 which constitutes the reaction part of the system, and comes to bear against the face 6 of the glass plate 1, by l 'through a washer of polyethylene plastic 15. The end of the screw 12 is still screwed into a bore 16 of the structure S and is blocked by a lock nut 17.

On observera que, dans une vue parallèle à l'axe du trou, la surface de contact de l'écrou 14 se superpose à celle de la pièce 7, ce qui évite tout risque d'apparition de contraintes de cisaillement à l'intérieur de la plaque de verre trempé 1.It will be observed that, in a view parallel to the axis of the hole, the contact surface of the nut 14 is superimposed on that of the part 7, which avoids any risk of the appearance of shear stresses inside the tempered glass plate 1.

La figure 1 permet d'exposer l'idée qui est à la base de l'invention.Figure 1 explains the idea which is the basis of the invention.

Le serrage de l'écrou 14 sur la vis 12 génère, entre la surface conique 3 du trou fraisé 2 la face opposée 6 de la plaque, une force sensiblement parallèle à l'axe du trou, et qui au repos tend à créer, une contrainte de compression dans la matière entourant le trou. Des calculs mathématiques, par exemple par la méthode du calcul tensoriel ou celle du calcul par éléments finis, permettent de déterminer la relation entre la force de serrage et l'étendue de la zone entourant le trou qui se trouve ainsi soumise à une contrainte de compression, si on connaît les caractéristiques géométriques et mécaniques de la plaque et du trou.The tightening of the nut 14 on the screw 12 generates, between the conical surface 3 of the countersunk hole 2 the opposite face 6 of the plate, a force substantially parallel to the axis of the hole, and which at rest tends to create a compressive stress in the material surrounding the hole. Mathematical calculations, for example by the method of tensor calculation or that of calculation by finite elements, make it possible to determine the relation between the tightening force and the extent of the zone surrounding the hole which is thus subjected to a compressive stress , if we know the geometric and mechanical characteristics of the plate and the hole.

L'application au système d'assemblage d'une contrainte extérieure, transmise ici de la structure S à la vis 12, modifie la répartition des contraintes à l'intérieur de la matière. La dimension minimale de 1 mm pour la zone en compression entourant le trou au repos a été déterminée expérimentalement comme permettant d'éviter l'apparition de conditions de contrainte dangereuses dans la paroi du trou lorsque la plaque est soumise aux contraintes extérieures qu'elle peut supporter par ailleurs.The application to the assembly system of an external stress, transmitted here from the structure S to the screw 12, modifies the distribution of the stresses inside the material. The minimum dimension of 1 mm for the compression zone surrounding the hole at rest has been determined experimentally to avoid the appearance of dangerous stress conditions in the wall of the hole when the plate is subjected to external stresses that it can bear otherwise.

Dans chaque cas concret, la détermination de la force à appliquer pour réaliser les conditions de l'invention se fera avec les méthodes d'analyse des contraintes habituelles, en particulier les méthodes optiques. Il s'agit d'observer le déplacement de la zone où apparaît le minimum de contrainte superficielle de compression. Plus la force de serrage est forte, plus cette zone s'éloigne du bord du trou fraisé. L'observation en lumière polarisée, ou les mesures plus fines dérivées par exemple de l'EPIBIASCOPE, permettent de déterminer quelle est la force nécessaire pour éloigner la zone en question à la distance désirée du bord du trou fraisé, par exemple 1 mm.In each concrete case, the determination of the force to be applied to achieve the conditions of the invention will be done with the methods of analysis of usual constraints, in particular optical methods. It is a question of observing the displacement of the zone where the minimum surface compressive stress appears. The stronger the clamping force, the more this area moves away from the edge of the countersunk hole. Observation in polarized light, or finer measurements derived for example from the EPIBIASCOPE, makes it possible to determine what is the force necessary to move the area in question to the desired distance from the edge of the milled hole, for example 1 mm.

Ainsi, par exemple, dans le cas d'un verre de 12 mm ayant subi une trempe chimique normale (contrainte de compression superficielle de l'ordre de 90 MPa) avec un trou fraisé de 54 mm de grand diamètre, conique sur 8 mm et terminé par un cylindre de 38 mm de diamètre avec un système vis-écrou comme sur la figure 1, un couple de serrage de 100 Nm a permis d'obtenir une force axiale de 35 kN, suffisante pour que le minimum des contraintes de 7 MPa soit reporté à 1,5 mm de la périphérie du trou.Thus, for example, in the case of a 12 mm glass having undergone normal chemical toughening (surface compressive stress of the order of 90 MPa) with a 54 mm large diameter countersunk hole, conical over 8 mm and terminated by a cylinder 38 mm in diameter with a screw-nut system as in Figure 1, a tightening torque of 100 Nm allowed to obtain an axial force of 35 kN, sufficient for the minimum stress of 7 MPa is transferred to 1.5 mm from the periphery of the hole.

Sur des échantillons du type précédent, on a ensuite procédé à des essais de traction, la force étant appliquée sur la vis, perpendiculairement à son axe, dans le plan du verre maintenu mobile. Des efforts systématiques de 30 kN ont été appliqués tandis qu'on faisait subir aux échantillons 23 cycles thermiques de -15°C à +56°C d'une durée de 6 heures chacun. Aucune rupture des échantillons testés n'est apparue alors que, lorsque la force de serrage n'est que de 3,5 kN (couple de serrage de 10 Nm) la casse se produit dès l'apparition de la charge.On samples of the previous type, tensile tests were then carried out, the force being applied to the screw, perpendicular to its axis, in the plane of the glass kept mobile. Systematic forces of 30 kN were applied while the samples were subjected to 23 thermal cycles from -15 ° C to + 56 ° C with a duration of 6 hours each. No breakage of the tested samples appeared whereas, when the tightening force is only 3.5 kN (tightening torque of 10 Nm) breakage occurs as soon as the load appears.

La figure 2 décrit une structure assez analogue à celle de la figure 1, adaptée au cas où, au lieu d'une plaque de verre unique, on est en présence d'une plaque feuilletée formée de deux feuilles de verre 1A, 1B. Dans ce cas, l'écrou 14 vient en appui sur une seule des feuilles de verre par exemple, ici, celle qui est la plus éloignée de la structure S. Pour cela l'écrou 14 est logé dans un trou 18 de la plaque de verre 1B. De plus, on a représenté la structure S comme venant directement en appui sur la plaque de verre 1B, avec toutefois interposition d'une rondelle de matière plastique 19. Figure 2 describes a structure quite similar to that of Figure 1, suitable for the case where, instead of a single glass plate, we are in the presence of a laminated plate formed by two glass sheets 1A, 1B. In this case, the nut 14 comes to bear on only one of the glass sheets for example, here, that which is furthest from the structure S. For this, the nut 14 is housed in a hole 18 in the plate glass 1B. In addition, the structure S has been shown as coming directly to bear on the glass plate 1B, with however the interposition of a plastic washer 19.

La disposition de la figure 3 diffère en quelques points seulement de celle de la figure 1:
   la pièce 7 ne comporte pas d'alésage traversant 10 et la vis 12 est supprimée. En revanche, la partie cylindrique 9 se prolonge au-delà de la face 6 de la plaque de verre 1. Elle est pourvue d'un filetage 20 et coopère directement avec l'écrou 14. La pièce 7 présente une cavité borgne 21, qui débouche du côté de l'écrou 14. Dans cette cavité est logée une tige 22 de raccordement à la structure S non représentée. La tige 22 est montée de façon à pouvoir présenter de légères oscillations, d'une façon qui est décrite en détail dans le document EP-A-0 655 543 mentionné plus haut.The layout of Figure 3 differs in only a few points from that of Figure 1:
the part 7 does not have a through bore 10 and the screw 12 is eliminated. On the other hand, the cylindrical part 9 extends beyond the face 6 of the glass plate 1. It is provided with a thread 20 and cooperates directly with the nut 14. The part 7 has a blind cavity 21, which opens out on the side of the nut 14. In this cavity is housed a rod 22 for connection to the structure S, not shown. The rod 22 is mounted so as to be able to present slight oscillations, in a manner which is described in detail in the document EP-A-0 655 543 mentioned above.

La figure 3 étant à plus grande échelle, permet de mieux voir la nature du contact entre les parties tronconiques du trou 2 et de la pièce 7.FIG. 3 being on a larger scale, allows a better view of the nature of the contact between the frustoconical parts of the hole 2 and of the part 7.

On notera tout d'abord que la figure 3 est une coupe faite avant serrage du dispositif.Note first that Figure 3 is a section made before tightening the device.

Le demi-angle au sommet de la partie tronconique 3 du trou 2 est de 45°. La surface tronconique 8 de la pièce 7 présente un demi-angle au sommet légèrement supérieur, de 46°. Cette différence angulaire, conjuguée avec le choix des diamètres fait que la partie 7 vient en contact avec le trou 2 seulement à l'endroit où celui-ci débouche sur la face 4 de la lame de verre. La pièce 2 étant en métal « Inox 304 », il est prévu, entre la pièce 7 et la partie conique du trou, une rondelle tronconique 23 en aluminium destinée à éviter les excès locaux de contrainte. Les deux faces de la rondelle tronconique 23 ont chacune un demi-angle au sommet de 46°, comme la pièce 7. L'aluminium est ici préféré à une matière plastique à cause de sa plus grande stabilité dans le temps.The half-angle at the top of the frustoconical part 3 of the hole 2 is 45 °. The frustoconical surface 8 of the part 7 has a slightly higher apex half-angle, of 46 °. This angular difference, combined with the choice of diameters means that the part 7 comes into contact with the hole 2 only at the point where the latter opens onto the face 4 of the glass slide. The part 2 being made of “304 stainless steel” metal, there is provided, between the part 7 and the conical part of the hole, a frustoconical washer 23 made of aluminum intended to avoid local stresses. The two faces of the frustoconical washer 23 each have a half-angle at the top of 46 °, like the part 7. The aluminum is here preferred to a plastic material because of its greater stability over time.

Pour des raisons de clarté, les valeurs exactes des angles et des épaisseurs relatives n'ont pas été représentées sur la figure.For the sake of clarity, the exact values of the angles and the relative thicknesses have not been shown in the figure.

On notera que, pour des considérations esthétiques, les dimensions des pièces et du trou ont été calculées pour que la pièce 7 vienne exactement en affleurement avec la surface 4 de la plaque de verre 1, après serrage du dispositif.It will be noted that, for aesthetic considerations, the dimensions of the parts and of the hole have been calculated so that the part 7 comes exactly flush with the surface 4 of the glass plate 1, after tightening of the device.

La figure 4 montre une réalisation conforme à l'invention, pour l'assemblage de deux plaques de verre trempé. Deux plaques 1A, 1B présentent des trous fraisés 2A, 2B de direction opposée, dans lesquels sont engagées des pièces 7A, 7B identiques à celles de la figure 1. La vis 12 est unique, elle pénètre dans l'alésage 10A de la pièce 7A, et dans l'alésage 10B de la pièce 7B, et se visse dans un écrou 30, qui vient en butée sur un épaulement 11B du trou 10B. Des bagues de matière plastique (polyéthylène) 31, 30A, 30B sont intercalées entre les deux feuilles de verre. FIG. 4 shows an embodiment in accordance with the invention, for the assembly of two tempered glass plates. Two plates 1A, 1B have countersunk holes 2A, 2B in opposite directions, in which parts 7A, 7B are engaged identical to those of FIG. 1. The screw 12 is single, it penetrates into the bore 10A of part 7A , and in the bore 10B of the part 7B, and is screwed into a nut 30, which abuts on a shoulder 11B of the hole 10B. Plastic (polyethylene) rings 31, 30A, 30B are interposed between the two glass sheets.

La figure 5 montre schématiquement une variante dans laquelle la pièce 7 et l'écrou 14 sont des pièces identiques, placées symétriquement dans le trou 2. La pièce 7 et l'écrou 14 ont des parties tronconiques présentant un angle au sommet de 46°, alors que le trou présente deux parties tronconiques opposées 3A, 3B placées symétriquement et présentant un angle au sommet de 45° et séparées par une partie cylindrique 5. FIG. 5 schematically shows a variant in which the part 7 and the nut 14 are identical parts, placed symmetrically in the hole 2. The part 7 and the nut 14 have frustoconical parts having an angle at the top of 46 °, while the hole has two opposite frustoconical parts 3A, 3B placed symmetrically and having an apex angle of 45 ° and separated by a cylindrical part 5.

Le serrage est assuré par une tige filetée 40, qui traverse les pièces 7 et 14 et deux écrous 41, 42 qui se vissent sur la tige 40. Un prolongement 43 de la tige 40 sert à la fixation de l'ensemble sur une structure support, non représentée.The tightening is ensured by a threaded rod 40, which passes through the parts 7 and 14 and two nuts 41, 42 which are screwed on the rod 40. An extension 43 of the rod 40 is used for fixing the assembly on a support structure , not shown.

La figure 6 montre une réalisation avec un trou à double fraisage. La première pièce 7, qui vient épouser une première partie tronconique 3A du trou est reliée à la pièce de réaction 14, qui épouse l'autre partie tronconique 3B, par une pièce de liaison 44, qui a la forme d'une vis à tête, dont la tige filetée 45 se visse dans la pièce de réaction 14n et la tête 46 est logée avec jeu dans une cavité 47 de la pièce 7 en prenant appui sur un épaulement 48 du fond de la cavité. Le jeu permet de compenser un écart éventuel entre les axes des parties tronconiques 3A, 3B. Un alésage central 49 traverse la pièce de liaison 45. Il est destiné à recevoir un élément de structure formant moyen de fixation, non représenté. Figure 6 shows an embodiment with a double milling hole. The first part 7, which comes to marry a first frustoconical part 3A of the hole is connected to the reaction part 14, which marries the other frustoconical part 3B, by a connecting part 44, which has the shape of a head screw , whose threaded rod 45 is screwed into the reaction part 14n and the head 46 is housed with clearance in a cavity 47 of the part 7 by bearing on a shoulder 48 from the bottom of the cavity. The play makes it possible to compensate for a possible deviation between the axes of the frustoconical parts 3A, 3B. A central bore 49 passes through the connecting piece 45. It is intended to receive a structural element forming a fixing means, not shown.

La figure 7 représente un assemblage de deux plaques 50, 51 feuilletées, formées chacune de deux feuilles de verre trempé 50A, 50B et 51A, 51B. FIG. 7 represents an assembly of two laminated plates 50, 51, each formed from two sheets of tempered glass 50A, 50B and 51A, 51B.

Dans la plaque 50, une feuille « interne » 50A va moins loin que la feuille externe 50B et, de même, la feuille interne 51A va moins loin que la feuille externe 51B.In the plate 50, an "internal" sheet 50A goes less far than the outer sheet 50B and, similarly, the inner sheet 51A goes less far than the outer sheet 51B.

La feuille 50A vient en appui sur la feuille 51B et la feuille 51A vient en appui sur la feuille 50B.The sheet 50A comes to bear on the sheet 51B and the sheet 51A comes to bear on the sheet 50B.

Des assemblages 52, 53 analogues à ceux de la figure 4 relient ensemble les feuilles 50A, 51B et 51A, 50B. Les feuilles 50B et 51B comportent des trous 54, 55 qui sont en face des assemblages respectifs afin de permettre la mise en place et le serrage.Assemblies 52, 53 similar to those of FIG. 4 connect the sheets 50A, 51B and 51A, 50B together. The sheets 50B and 51B have holes 54, 55 which are opposite the respective assemblies in order to allow the establishment and the tightening.

La disposition des assemblages 52, 53 et des trous 54, 55 est calculée pour éviter une fragilisation de l'ensemble. En particulier, on évitera de les mettre sur une même verticale, à faible distance les uns des autres.The arrangement of the assemblies 52, 53 and the holes 54, 55 is calculated to avoid weakening of the assembly. In particular, we will avoid putting them on the same vertical, at a short distance from each other.

Bien entendu, l'invention s'applique non seulement au verre, mais à tous les matériaux fragiles.Of course, the invention applies not only to glass, but to all fragile materials.

Claims (13)

Système d'assemblage entre une feuille de verre (1) comportant un trou fraisé au moins d'un côté (2) et, soit une autre feuille de verre, soit un élément de structure (S) notamment métallique, le système comportant une pièce de liaison, caractérisé en ce que la pièce de liaison comporte deux parties dont l'une (7) épouse la surface conique (3) du trou fraisé, sur laquelle s'exerce une force sensiblement parallèle à l'axe du trou et dont l'autre (14) s'appuie sur le côté (6) de la feuille opposé au fraisage du trou pour y supporter la réaction à ladite force et en ce que la force est suffisante pour établir à la surface de la feuille de verre au repos, un système de contraintes de compression avec un minimum localisé à une distance du bord du trou fraisé supérieure à 1 % du diamètre maximal de ce trou.Assembly system between a glass sheet (1) comprising a countersunk hole at least on one side (2) and either another glass sheet or a structural element (S), in particular metal, the system comprising a part of connection, characterized in that the connection piece comprises two parts, one of which (7) follows the conical surface (3) of the countersunk hole, on which a force is exerted substantially parallel to the axis of the hole and whose l 'other (14) is supported on the side (6) of the sheet opposite the milling of the hole to support the reaction to said force and in that the force is sufficient to establish on the surface of the glass sheet at rest , a compression stress system with a minimum located at a distance from the edge of the countersunk hole greater than 1% of the maximum diameter of this hole. Système d'assemblage selon la revendication 1, caractérisé en ce que la partie (7) de la pièce de liaison qui épouse la surface conique (3) du trou fraisé (2) possède un angle d'ouverture du cône supérieur à celui du cône du trou fraisé.Assembly system according to claim 1, characterized in that the part (7) of the connecting piece which follows the conical surface (3) of the countersunk hole (2) has an angle of opening of the cone greater than that of the cone of the countersunk hole. Système d'assemblage selon la revendication 2, caractérisé en ce que les demi-angles au sommet des cônes diffèrent de 0,5 à 5°.Assembly system according to claim 2, characterized in that the half-angles at the top of the cones differ from 0.5 to 5 °. Système d'assemblage selon l'une des revendications précédentes, caractérisé en ce que la partie (7) de la pièce de liaison qui épouse la surface conique du trou fraisé est métallique et en ce qu'on interpose entre elle et le trou fraisé un manchon d'un matériau malléable tel que de l'aluminium.Assembly system according to one of the preceding claims, characterized in that the part (7) of the connecting piece which follows the conical surface of the countersunk hole is metallic and in that there is interposed between it and the countersunk hole sleeve of a malleable material such as aluminum. Système d'assemblage selon l'une des revendications précédentes, caractérisé en ce que le trou fraisé (3) est tronqué et se termine sur la surface de la feuille opposée par une partie cylindrique coaxiale (5).Assembly system according to one of the preceding claims, characterized in that the countersunk hole (3) is truncated and ends on the surface of the sheet opposite by a coaxial cylindrical part (5). Système d'assemblage selon la revendication 5, caractérisé en ce qu'aucun élément (7, 9) de la pièce de liaison n'est au contact de la partie cylindrique (5) du trou fraisé (2).Assembly system according to claim 5, characterized in that no element (7, 9) of the connecting piece is in contact with the cylindrical part (5) of the countersunk hole (2). Système d'assemblage selon l'une des revendications précédentes, caractérisé en ce que la pièce de liaison est un système vis-écrou.Assembly system according to one of the preceding claims, characterized in that the connecting piece is a screw-nut system. Système d'assemblage selon l'une des revendications 1 à 6, caractérisé en ce que les deux parties de la pièce de liaison sont serties l'une sur l'autre.Assembly system according to one of claims 1 to 6, characterized in that the two parts of the connecting piece are crimped on one another. Feuille de verre trempé d'une épaisseur d'au moins 6 mm, équipée d'au moins un trou fraisé (2) sur une de ses surfaces, caractérisée en ce qu'elle comporte à l'intérieur du trou fraisé une pièce conique (7) et sur la surface opposée une pièce de réaction (14), en ce qu'une force dirigée sensiblement selon l'axe du trou s'exerce entre la pièce conique et la pièce de réaction et en ce que cette force est telle que, si la feuille de verre est soumise à une contrainte extérieure prévue à l'avance, il s'établit dans cette feuille de verre un système résultant de contraintes superficielles en compression et présente un minimum situé à une distance du bord du trou fraisé supérieure à 1 % du diamètre maximal de ce trou.Tempered glass sheet at least 6 mm thick, fitted with at least one countersunk hole (2) on one of its surfaces, characterized in that it has a conical part inside the countersunk hole ( 7) and on the opposite surface a reaction piece (14), in that a force directed substantially along the axis of the hole is exerted between the conical piece and the reaction piece and in that this force is such that , if the glass sheet is subjected to an external stress provided in advance, there is established in this glass sheet a system resulting from surface compressive stresses and has a minimum located at a distance from the edge of the milled hole greater than 1% of the maximum diameter of this hole. Feuille de verre trempé selon la revendication 9, caractérisée en ce qu'elle présente un trou doublement fraisé avec une partie conique (3A, 3B) débouchant de part et d'autre et une partie médiane cylindrique (5) qui possède sensiblement le même axe que les parties coniques, en ce qu'elle comporte à l'intérieur de chaque partie conique une pièce conique (7, 14), en ce qu'une force dirigée selon l'axe du trou s'exerce entre les deux pièces coniques et en ce que cette force est telle que, si la feuille de verre est soumise à une contrainte extérieure prévue à l'avance, il s'établit dans cette feuille de verre un système résultant de contraintes superficielles en compression qui présente un minimum situé à une distance du bord du trou fraisé supérieure à 1 % du diamètre maximal de ce trou.Tempered glass sheet according to claim 9, characterized in that it has a doubly milled hole with a conical part (3A, 3B) opening out on either side and a cylindrical central part (5) which has substantially the same axis. that the conical parts, in that it comprises inside each conical part a conical part (7, 14), in that a force directed along the axis of the hole is exerted between the two conical parts and in that this force is such that, if the glass sheet is subjected to an external stress provided for in advance, there is established in this glass sheet a system resulting from surface compressive stresses which has a minimum located at a distance from the edge of the countersunk hole greater than 1% of the maximum diameter of this hole. Feuille de verre trempé selon la revendication 9 ou 10, caractérisée en ce que la ou les pièces coniques (7, 14) possèdent un angle d'ouverture du cône supérieur à celui du cône du trou fraisé correspondant.Tempered glass sheet according to claim 9 or 10, characterized in that the one or more conical parts (7, 14) have a cone opening angle greater than that of the cone of the corresponding countersunk hole. Feuille de verre trempé selon l'une des revendications 9 à 11, caractérisée en ce que la ou les pièces coniques (7) et éventuellement la pièce de réaction sur la surface opposée sont équipées de moyens de préhension (12, 21, 22, 43) tels que trous ou bossages, pour transmettre des efforts dirigés sensiblement dans le plan de la feuille de verre soit à un élément de structure (S), soit à une autre feuille de verre.Tempered glass sheet according to one of Claims 9 to 11, characterized in that the conical part or parts (7) and possibly the reaction part on the opposite surface are equipped with gripping means (12, 21, 22, 43 ) such as holes or bosses, to transmit forces directed substantially in the plane of the glass sheet either to a structural element (S), or another sheet of glass. Application de la feuille selon l'une des revendications 9 à 12 à la réalisation d'ensembles formés d'éléments préfabriqués assemblés sur chantier.Application of the sheet according to one of claims 9 to 12 to the production of assemblies formed of prefabricated elements assembled on site.
EP97400699A 1996-04-12 1997-03-27 System for fixing a toughened glass sheet and accordingly equipped glass sheet Expired - Lifetime EP0801201B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9604612 1996-04-12
FR9604612A FR2747424B1 (en) 1996-04-12 1996-04-12 SYSTEM FOR ASSEMBLING BETWEEN A TEMPERED GLASS SHEET AND ANOTHER OBJECT, GLASS SHEET EQUIPPED WITH SUCH A SYSTEM, AND APPLICATION OF SUCH A SHEET

Publications (2)

Publication Number Publication Date
EP0801201A1 true EP0801201A1 (en) 1997-10-15
EP0801201B1 EP0801201B1 (en) 2002-11-20

Family

ID=9491159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400699A Expired - Lifetime EP0801201B1 (en) 1996-04-12 1997-03-27 System for fixing a toughened glass sheet and accordingly equipped glass sheet

Country Status (7)

Country Link
EP (1) EP0801201B1 (en)
AT (1) ATE228199T1 (en)
DE (1) DE69717184T2 (en)
DK (1) DK0801201T3 (en)
ES (1) ES2186850T3 (en)
FR (1) FR2747424B1 (en)
PT (1) PT801201E (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000020241A1 (en) * 1998-10-05 2000-04-13 Nippon Sheet Glass Co., Ltd. Glass sheet and glass window for vehicles
WO2002072988A1 (en) * 2001-03-12 2002-09-19 Mirrorstone Oy A fastening arrangement of a movable hinge part to be joined with a glass door, especially a two-sided mirror door and a method for performing the joining
FR2822881A1 (en) 2001-03-29 2002-10-04 Saint Gobain Fixing system for panels of fragile material e.g. glass has fastenings with feet attached to underside of panels by adhesive
EP1179684A3 (en) * 2000-08-08 2003-01-08 DORMA GmbH + Co. KG Support means mounted in a hole of a glass pane
FR2849889A1 (en) 2003-01-15 2004-07-16 Saint Gobain Glass sheets assembling system, has linking core part with portions that blend bored surface of one glass sheet linking piece on which is applied force, and another part engaged within other pieces bore to support reaction force
EP1655438A2 (en) * 2004-11-04 2006-05-10 Dorma Gmbh & Co. Kg Driving means for the pivoting wing of a glass door
EP1691013A2 (en) * 2005-02-11 2006-08-16 Schulte Duschkabinenbau GmbH & Co. KG Arrangement, especially shower partition or panel, fitting and glass pane
KR100835916B1 (en) 2007-06-25 2008-06-09 한국유리공업주식회사 A thin plate glass bolt assembly for glazing system
WO2012031332A1 (en) * 2010-09-10 2012-03-15 Nupress Tools Pty Limited Laminate assembly
US8186901B2 (en) * 2006-04-13 2012-05-29 Dura Global Technologies, Llc Liftglass to strut retention device with built-in locking feature
US8375680B2 (en) 2007-04-02 2013-02-19 Nupress Tools Pty Limited Insulated glass unit (IGU) and a point fixing apparatus for an IGU
CN103863067A (en) * 2014-03-04 2014-06-18 江苏铁锚玻璃股份有限公司 Production method for high-speed train front windshields capable of being rapidly replaced and front windshield
PT106772A (en) * 2013-02-07 2014-08-07 Univ Do Minho MODULAR REINFORCED GLASS SYSTEM AND METHOD OF MANUFACTURE OF THE SAME
DE102006006727B4 (en) * 2005-02-11 2017-08-31 Schulte Duschkabinenbau Gmbh & Co. Kg Disc and device, in particular shower enclosure with a disc

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004003960B4 (en) * 2004-01-27 2005-11-03 Eckelt Glas Gmbh Connection arrangement for composite disks
WO2019176069A1 (en) 2018-03-15 2019-09-19 三井金属アクト株式会社 Automobile-door-hinge manufacturing method and automobile
CN111801479B (en) * 2018-03-15 2022-07-29 三井金属爱科特株式会社 Door hinge device for automobile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201212A1 (en) * 1985-04-16 1986-11-12 Hugh John Dutton Architectural mounting for plate glass
GB2178471A (en) * 1985-07-31 1987-02-11 Pilkington Brothers Plc Structural glass unit
EP0655543A1 (en) * 1993-11-30 1995-05-31 Saint-Gobain Vitrage Mechanical joint between a window panel and a structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201212A1 (en) * 1985-04-16 1986-11-12 Hugh John Dutton Architectural mounting for plate glass
GB2178471A (en) * 1985-07-31 1987-02-11 Pilkington Brothers Plc Structural glass unit
EP0655543A1 (en) * 1993-11-30 1995-05-31 Saint-Gobain Vitrage Mechanical joint between a window panel and a structure

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU742375B2 (en) * 1998-10-05 2002-01-03 Nippon Sheet Glass Co. Ltd. Glass sheet and glass window for vehicles
US6467225B1 (en) * 1998-10-05 2002-10-22 Nippon Sheet Glass Co., Ltd. Glass sheet and glass window for vehicles
WO2000020241A1 (en) * 1998-10-05 2000-04-13 Nippon Sheet Glass Co., Ltd. Glass sheet and glass window for vehicles
EP1179684A3 (en) * 2000-08-08 2003-01-08 DORMA GmbH + Co. KG Support means mounted in a hole of a glass pane
WO2002072988A1 (en) * 2001-03-12 2002-09-19 Mirrorstone Oy A fastening arrangement of a movable hinge part to be joined with a glass door, especially a two-sided mirror door and a method for performing the joining
FR2822881A1 (en) 2001-03-29 2002-10-04 Saint Gobain Fixing system for panels of fragile material e.g. glass has fastenings with feet attached to underside of panels by adhesive
US7571575B2 (en) 2003-01-15 2009-08-11 Saint-Gobain Glass France System enabling an assembly of at least one glass sheet and an other object, glass sheet provided with one such system and use of one such sheet
FR2849889A1 (en) 2003-01-15 2004-07-16 Saint Gobain Glass sheets assembling system, has linking core part with portions that blend bored surface of one glass sheet linking piece on which is applied force, and another part engaged within other pieces bore to support reaction force
WO2004072423A1 (en) 2003-01-15 2004-08-26 Saint-Gobain Glass France System enabling an assembly of at least one glass sheet and an other object, glass sheet provided with one such system and use of one such sheet
JP2006517270A (en) * 2003-01-15 2006-07-20 サン−ゴバン グラス フランス System enabling assembly between at least one glass plate and another object, glass plate provided with such a system, and use of such glass plate
CN1738956B (en) * 2003-01-15 2012-03-07 法国圣戈班玻璃厂 System enabling an assembly of at least one glass sheet and an other object, glass sheet provided with one such system and use of one such sheet
EP1655438A2 (en) * 2004-11-04 2006-05-10 Dorma Gmbh & Co. Kg Driving means for the pivoting wing of a glass door
EP1691013A2 (en) * 2005-02-11 2006-08-16 Schulte Duschkabinenbau GmbH & Co. KG Arrangement, especially shower partition or panel, fitting and glass pane
EP1691013A3 (en) * 2005-02-11 2013-05-08 Schulte Duschkabinenbau GmbH & Co. KG Arrangement, especially shower partition or panel, fitting and glass pane
DE102006006727B4 (en) * 2005-02-11 2017-08-31 Schulte Duschkabinenbau Gmbh & Co. Kg Disc and device, in particular shower enclosure with a disc
US8186901B2 (en) * 2006-04-13 2012-05-29 Dura Global Technologies, Llc Liftglass to strut retention device with built-in locking feature
US8375680B2 (en) 2007-04-02 2013-02-19 Nupress Tools Pty Limited Insulated glass unit (IGU) and a point fixing apparatus for an IGU
KR100835916B1 (en) 2007-06-25 2008-06-09 한국유리공업주식회사 A thin plate glass bolt assembly for glazing system
WO2012031332A1 (en) * 2010-09-10 2012-03-15 Nupress Tools Pty Limited Laminate assembly
PT106772A (en) * 2013-02-07 2014-08-07 Univ Do Minho MODULAR REINFORCED GLASS SYSTEM AND METHOD OF MANUFACTURE OF THE SAME
PT106772B (en) * 2013-02-07 2015-02-06 Univ Do Minho REINFORCED GLASS MODULAR SYSTEM
CN103863067A (en) * 2014-03-04 2014-06-18 江苏铁锚玻璃股份有限公司 Production method for high-speed train front windshields capable of being rapidly replaced and front windshield
CN103863067B (en) * 2014-03-04 2016-03-23 江苏铁锚玻璃股份有限公司 Can quick-replaceable high speed train windshield production method and windshield

Also Published As

Publication number Publication date
ES2186850T3 (en) 2003-05-16
EP0801201B1 (en) 2002-11-20
ATE228199T1 (en) 2002-12-15
FR2747424A1 (en) 1997-10-17
DE69717184T2 (en) 2003-08-28
DE69717184D1 (en) 2003-01-02
FR2747424B1 (en) 1998-10-30
PT801201E (en) 2003-04-30
DK0801201T3 (en) 2003-03-17

Similar Documents

Publication Publication Date Title
EP0801201B1 (en) System for fixing a toughened glass sheet and accordingly equipped glass sheet
EP1825151B1 (en) Metal sheet, method for fixing said metal sheet by flow drilling and assembly comprising same
EP2702280B1 (en) Blind rivet bolt
EP1743995A1 (en) Opening with a metallic fitting, embedded in a metal section comprising a ruptured thermal bridge
FR2886322A1 (en) Glass substrate e.g. tempered glass, fixing device for e.g. tertiary building, has retaining unit, disposed between one of two substrates and structure, including compensating unit whose sliding unit permits displacement between substrates
WO2011161370A1 (en) Device and method for assembling two shell elements made from a composite material
EP3280563A1 (en) Use of a stepped, shrink-fit ring in order to assemble a motor for power steering in a steering housing
EP1588008B1 (en) System for assembly
EP2428630B1 (en) Non-toughened glass panel provided with an accessory.
EP1174576B1 (en) Torque control hinge
FR2941504A1 (en) Quick release nut for installing cable trough, has gripping stem and tilting base successively located along main axis of nut, where tilting base is extended by radially projecting from stem for forming tilting lever
EP3715259B1 (en) Assembly for an aircraft, the assembly comprising a mast, an engine mount and an attachment system between the mast and the engine mount
EP0988446B1 (en) Device for anchoring a member activating an adjustable nozzle
WO2009133305A1 (en) Method and device for attaching an apparatus onto a compressible coating covering a mounting structure
FR3072738A1 (en) RETAINING FIXATION WITH IMPROVED GAME
EP2284347A1 (en) Method for assembling an opening upright of a metal joinery element with thermal-bridge breakage and device for implementing the method
FR2497126A1 (en) PRESS TOOL WITH INSERTED HARD MATERIAL FOR METAL FORMING, ESPECIALLY COPPER AND ALUMINUM ALLOYS
FR3026151A1 (en) BARROW NUT ASSEMBLY, AIRCRAFT STRUCTURAL ASSEMBLY COMPRISING SUCH A DEVICE, AND CORRESPONDING ASSEMBLY METHOD
EP0377372B1 (en) Adjustable striker to be mounted on a frame, and lock provided therewith
EP3622184A1 (en) Connection device for bars for blinds
FR2774143A1 (en) HINGE FOR MICROMECHANICAL APPLICATION
FR3096347A1 (en) FRONT ENGINE ATTACHMENT SYSTEM FOR AN AIRCRAFT ENGINE CONTAINING A BEAM MADE IN TWO PARTS
FR2735820A1 (en) Fixing bolt with captive washer used in aircraft industry
FR3134604A3 (en) Process for assembling two elements together.
FR2730511A1 (en) Anchoring system for two partitions

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB IE IT LI LU NL PT SE

17P Request for examination filed

Effective date: 19971108

17Q First examination report despatched

Effective date: 19991214

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAINT-GOBAIN GLASS FRANCE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB IE IT LI LU NL PT SE

REF Corresponds to:

Ref document number: 228199

Country of ref document: AT

Date of ref document: 20021215

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

REF Corresponds to:

Ref document number: 69717184

Country of ref document: DE

Date of ref document: 20030102

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: KIRKER & CIE SA

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20030320

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20030217

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2186850

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030821

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20160310

Year of fee payment: 20

Ref country code: IE

Payment date: 20160309

Year of fee payment: 20

Ref country code: ES

Payment date: 20160211

Year of fee payment: 20

Ref country code: DE

Payment date: 20160322

Year of fee payment: 20

Ref country code: LU

Payment date: 20160316

Year of fee payment: 20

Ref country code: CH

Payment date: 20160311

Year of fee payment: 20

Ref country code: DK

Payment date: 20160310

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20160302

Year of fee payment: 20

Ref country code: GB

Payment date: 20160323

Year of fee payment: 20

Ref country code: SE

Payment date: 20160311

Year of fee payment: 20

Ref country code: FI

Payment date: 20160309

Year of fee payment: 20

Ref country code: BE

Payment date: 20160323

Year of fee payment: 20

Ref country code: AT

Payment date: 20160225

Year of fee payment: 20

Ref country code: FR

Payment date: 20160322

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20160324

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69717184

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20170326

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Effective date: 20170327

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20170326

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: IE

Ref legal event code: MK9A

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 228199

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20170326

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20170704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20170327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20170328

Ref country code: PT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20170405