DE202020102569U1 - Fastening device for a laminated safety glass pane - Google Patents

Abstract

Fastening device in a one- or multi-part metal, stainless steel or plastic version, for connection to at least one laminated safety glass pane, the structure of which consists of at least two or more flat glass panes, the laminated glass panes being permanently connected to one another by PVB foils or an equivalent material, this laminated safety glass pane is overlapped on both sides in a contact area by the fastening device or fitting parts and at the same time secured by means of fastening screws (6, 13) which grip through holes or glass cutouts (4, 5) contained in the safety glass pane, characterized in that in the contact area of the fastening device or the fitting parts there is at least one additional external access (14) to the bores or glass cutouts (4, 5), through which a chemical injection compound can be introduced into at least one of the bores or glass cutouts (4, 5), the injection build-up mass being able to solidify after a reaction time to a pressure-resistant build-up mass as a spacer element with a material bond to the surrounding materials.

Description

The invention relates to a fastening device in a one- or multi-part metal, stainless steel or plastic design for connection to at least one safety glass pane, the structure of which consists of at least two or more flat glass panes, the glass panes being permanently connected to one another by PVB films or equivalent. The invention also relates to a method for the permanent fastening of fittings or fitting parts to security glass panes.

Laminated safety glass consists of at least two flat glass panes that are permanently bonded to one another with an elastic, tear-resistant high-polymer film. These high-polymer films with the abbreviation PVB ensure that the individual flat glass panes which are connected to one another stick to the film if the glass pane breaks. A residual load-bearing capacity is thereby achieved in order to avoid cuts or puncture injuries due to fragments of the glass panes. Such a safety glass pane can be referred to as a splinter-binding glass because the glass breaks in the surface in the event of an external mechanical overload, but the fragments continue to adhere to the PVB film.

When such laminated safety glass panes are connected by means of fastening devices or fittings or fitting parts that lie on the surfaces of the laminated safety glass panes and are connected to one another by screw connections, there is a certain shrinkage of the film over the course of the fastening time, which means that those with the original fastening torque are mutually opposed pulled fasteners or the like can loosen. This is due to the fact that, due to the pressure load caused by the pressure forces applied via the surface, the PVB film or also in connection with large temperature fluctuations, this loosening of the fitting parts can occur. This is a safety criterion, which leads to the fact that the laminated safety glass panes do not break, but depending on the design of the fastening devices or the like, undesired detachments can occur.

It is therefore an object of the invention to remedy these problems and to ensure a permanent connection between a fitting or fitting parts and at least one laminated safety glass pane.

The object is solved by the features of claims 1 and 8. The subclaims following each of the subordinate claims represent a further embodiment of the inventive idea.

In order to permanently secure the contact area of the fastening device or the like in the area of the stop against loosening and thus to increase the residual load-bearing capacity for safety reasons in the event of a glass breakage, the laminated safety glass panes are fixed in at least one of the bores or the glass cutouts between the pre-assembled and with an initial torque Fitting devices or the like, introduced a curable, chemical injection building compound. After a reaction time of the chemical injection construction compound, which is designed as a single or multi-component, a pressure-resistant spacer element is created between the fitting parts from the construction compound. Due to the initial torque that is initially executed, which is below the fastening torque, the measure for the spacer element created by the chemical injection mass is created between the opposing fitting parts or the like. After the chemical injection building compound has hardened, the spacer element thus forms a permanently existing spacer element against the fastening pressure of the fitting device or the like. Only after the chemical injection build-up mass introduced has hardened is the fastening torque required for fastening the fastening device or the like then applied via the fastening screws. Tightening the fastening screws with the required fastening torque ensures that the fastening device or the like cannot change on the laminated safety glass pane. At the same time, the hardened construction mass not only forms a spacer element, but also secures the laminated safety glass pane overall against later changes in the fastening area.

The chemical injection build-up mass is introduced from the outside through at least one external access in the fastening device or the like both in the area of the bores and the glass cutouts and other recess structures of the fittings or the like located in between and can then be distributed in the openings in the laminated safety glass pane. In addition to the screw connection, this creates a further fastening, namely through a material bond. The substance is the chemical injection building compound that is distributed within the free spaces between the glass and the fastening devices or the like. By introducing the chemical injection building compound in this way, there are none on the laminated safety glass pane additional exertion of force, for example by spreading forces, can be expected.

Such a connection of fastening devices or the like to laminated safety glass panes of the aforementioned type can be carried out in all possible designs of fastening devices or the like which are attached to the opposite surfaces of the safety glass pane. This includes in particular both hinged door fittings and basically door leaves or overhead glazing in addition to protruding or hanging side glazing.

All fastening devices or fittings used can be made in one or more parts in metal, stainless steel or plastic, also in a plastic bandage.

• 1 ein Drehtürbeschlag zur Verbindung an einem Türelement;
• 2 wie 1, jedoch mit aufgesetztem Drehtürbeschlag;
• 3 eine Schnittdarstellung durch den Bereich des aufgesetzten Drehtürbeschlages;
• 4 eine Ausführungsform einer Befestigungsvorrichtung durch Beschläge in Verbindung mit einem feststehenden Seitenteil;
• 5 eine Darstellung der innerhalb der Sicherheitsglasscheiben vorhandenen Glasausschnitte und Bohrungen;
• 6 wie 5, jedoch mit aufgesetzten Beschlagteilen;
• 7 wie 6, jedoch von der Rückseite betrachtet;
• 8 die Ausführung der chemischen Injektionsaufbaumasse zwischen zwei Verbundsicherheitsglasscheiben.

The use of such a cohesive, pressure-resistant structural mass as a spacer is explained in more detail in the following schematically given exemplary embodiments.

• 1 a revolving door fitting for connection to a door element;
• 2nd how 1 , but with a hinged door fitting;
• 3rd a sectional view through the area of the hinged door fitting;
• 4th an embodiment of a fastening device by fittings in connection with a fixed side part;
• 5 a representation of the glass cutouts and bores present within the safety glass panes;
• 6 how 5 , but with attached fittings;
• 7 how 6 , however viewed from the back;
• 8th the execution of the chemical injection build-up mass between two laminated safety glass panes.

In the embodiment of the 1 to 3rd becomes a revolving door fitting 1 with a door leaf 2nd , which consists of a laminated safety glass, shown in areas. In the exemplary embodiment, the door leaf is made 2nd from two flat glass panes, not specified, which are made in a manufacturing process with a PVB film 3rd have been permanently connected to one another. Here are in the door leaf 2nd Glass cutouts 4th shown to the revolving door fitting 1 via fastening screws 6 permanently with the door leaf 2nd connect to.

In the 2nd becomes the revolving door fitting 1 in position with the door leaf 2nd shown. The fastening screws 6 have not yet been introduced here, for example through the holes 8th , or side entrances 14 , by means of a nozzle 7 a chemical injection build-up mass can be introduced precisely. This procedure is shown in a schematic representation 3rd , with the gray area with the chemical injection build-up mass over the nozzle 7 has been completed. After the chemical composition has hardened, a material bond can be achieved both with the laminated safety glass pane and with the fittings. Via the fastening screws 6 the hinge of the revolving door fitting 1 executed with the necessary torque.

The embodiment of the 4th shows next to the door leaf 2nd also a side part 10th and a skylight 9 which are all made of laminated safety glass. Above the revolving door fitting 1 is a glass fitting 11 has been shown in this state by side covers 12th is closed. Under the covers 12th are located on each side of both the side part 10th as well as the skylight 9 fastening parts of the glass fitting 11 , what the 6 and 7 can be removed. These two fastening parts on the surfaces of the side part designed as laminated safety glass 10th and the skylight 9 are among themselves by fastening screws 13 connectable with each other.

In order to be able to make such a connection, it is necessary that both in the side part 10th as well as in the skylight 9 corresponding holes or glass cutouts 4th , 5 must be present. About the glass cutouts 4th is the opposite fastening of the fitting parts of the glass fitting 11 by means of the screws 13 realizable. At least in one of the two parts of the fitting 11 can have at least one access 14 to be available. With a pre-assembly with a precise alignment and fixation of the laminated safety glass panes of the skylight 9 and the side part 10th can the glass fittings 11 with an initial torque via the fastening screws 13 be determined. You can then access at least one 14 the necessary chemical injection mass is introduced so that there is a material bond between the safety glasses 9 and the fittings come after the solidification of the chemical injection building mass, and thereby there is also a pressure-resistant spacer element from the building mass. He can do this 8th are removed, the area of the chemical injection build-up mass introduced being the gray area in the glass cutouts 4th and 5 corresponds.

After the reaction time of the chemical injection compound, which can consist of two components, there is a permanent, pressure-resistant spacer element, through which in particular any thickness tolerances of the laminated safety glass panes can be compensated, so that between those on the surfaces of the laminated safety glass panes 9 and 10th overlying fittings 11 no overloading can occur after assembly. At the same time, the hardened chemical injection building compound in the filled areas of the bonded safety glass pane achieves an additional residual load-bearing capacity in the event of a breakage of the bonded safety pane.

In addition to the holes or glass cutouts required to attach the fastening devices or fittings 4th , 5 If necessary, there may also be additional bores or glass cut-outs under the fittings in order to be able to fill them with the chemical injection building compound. This makes it possible to create additional spacer elements that can be pressurized from the outside. These spacer elements can counteract shrinkage of the PVB film and thus ensure that the fitting devices or the like are firmly seated at all times.

Reference list

1

Revolving door fitting

2nd

Door leaf

3rd

PVB film

4th

Glass cutout

5

Glass cutout

6

Mounting screws

7

jet

8th

Holes

9

Skylight

10th

Side panel

11

Glass fitting

12th

cover

13

Mounting screws

14

Access

Claims (9)

Fastening device in a one- or multi-part metal, stainless steel or plastic version, for connection to at least one laminated safety glass pane, the structure of which consists of at least two or more flat glass panes, the laminated glass panes being permanently connected to one another by PVB foils or an equivalent material, this laminated safety glass pane is overlapped on both sides in a contact area by the fastening device or fitting parts and at the same time secured by means of fastening screws (6, 13) which grip through holes or glass cutouts (4, 5) contained in the safety glass pane, characterized in that in the contact area of the fastening device or the fitting parts at least one additional external access (14) to the bores or glass cutouts (4, 5) is provided, through which a chemical injection compound can be introduced into at least one of the bores or glass cutouts (4, 5) , wherein the injection build-up mass can be solidified after a reaction time to a pressure-resistant build-up mass as a spacer element with a material bond to the surrounding materials. Fastening device after Claim 1 , characterized in that further bores or glass cutouts (4, 5) are formed within the contact area of the fastening device or the fitting parts and can be filled with the chemical injection building compound. Fastening device after Claim 1 or 2nd , characterized in that the fastening device is designed as a revolving door fitting with a side incision for the laminated safety glass pane or as a glass fitting (11) consisting essentially of two fitting parts arranged on the surfaces of one or two laminated safety glass panes. Fastening device after Claim 1 and 2nd , characterized in that the fastening device or the fitting parts can be preassembled on the surfaces of the laminated safety glass pane, the fastening screws (6, 13) being able to be tightened with an initial starting torque which does not lead to an area-wise overloading of the PVB film (3) can, and that the injection build-up mass can then be introduced via the accesses (14) or directly into the bores or the glass cutouts (4, 5) up to the filling or partial filling. Fastening device according to one or more of the preceding claims, characterized in that the chemical injection building compound after its curing between the on the Parts of the fastening device located opposite surfaces are designed as a pressure-loaded spacer element, so that if the tightening torque is increased further up to the required fastening torque of the fastening screws (6, 13), no additional pressure loads can be generated on the PVB film with an increased residual load-bearing capacity in the event of a glass breakage. Fastening device according to one or more of the preceding claims, characterized in that the chemical injection building compound is present as a multi-component compound. Fastening device according to one or more of the preceding claims, characterized in that the laminated safety glass pane is designed as a door leaf (2) or standing side glazing or with a skylight (9). Safety glass pane consisting of at least two flat glass panes connected by a PVB film or equivalent, with fittings or fitting parts that can be arranged on the opposite glass surfaces, in the fastening area of which there are bores or glass cutouts (4, 5), the opposing fittings or fitting parts being connected to one another in a force-locking manner are that only an initial torque can be exerted via the fastening screws (6, 13), and that subsequently the area around the fastening screws (6, 13) in the bores and / or in the glass cutouts (4, 5) by a hardenable chemical injection build-up compound can be filled up to the fittings or fitting parts. Safety glass pane after Claim 8 , characterized in that, after it has hardened, the injection build-up compound is designed as a pressure-resistant spacer element against incorrect application of torque of the fastening screws (6, 13) compared to the attached fittings or fitting parts.

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