EP2378045A2 - Insulating glass panes - Google Patents

Abstract

The insulating glass pane (1) comprises two individual glass panes (101, 102), a spacing frame (6) arranged between the glass panes, and a bar grid (2) arranged in the interior area of the insulating glass pane and holding at the spacing frame by mounting elements. The bar grid consists of plastic- or metal hollow profile rungs (3), whose hollow cross section has two external foot paths connected parallel to each other. The mounting elements are attached in use position directly at the inside of the respective hollow profile rungs and have reception geometry suitable to the mounting element. The insulating glass pane (1) comprises two individual glass panes (101, 102), a spacing frame (6) arranged between the glass panes, and a bar grid (2) arranged in the interior area of the insulating glass pane and holding at the spacing frame by mounting elements. The bar grid consists of plastic- or metal hollow profile rungs (3), whose hollow cross section has two external foot paths connected parallel to each other. The mounting elements are attached in use position directly at the inside of the respective hollow profile rungs and have a reception geometry suitable to the mounting elements. The reception geometry has a material-free cross-section in the interior of the hollow profile rungs. The mounting element is a screw, which has interference against the material-free cross-section of the reception geometry and interferes with its thread in mounting position areawisely in the material of the reception geometry. The small dimension of the material-free cross section is smaller than the external diameter of the screw thread and is same or larger than the diameter of the thread base. The end of the hollow profile rungs turned to the spacing frame is thread-less before mounting and the mounting element is a self-cutting screw. The reception geometry is arranged to the mounting element centrically in hollow cross-section of the end of the hollow profile rungs turned to the spacing frame. The screw is notched in use position in the external foot path forming the hollow profile rungs. The reception geometry of the hollow profile rungs has a projection or web projecting in gripping area of the mounting element. The reception geometry is a single-piece interior profile connected with the hollow profile rungs and passing in its extending direction. The internal profile connects the external footpath of the hollow profile rungs. The internal profile has flexible projections or webs in material-free cross-section, where the mounting element or thread of the screw interferes in the projections or webs. The material-free cross-section of the interior profile is circular, diamond-shaped, rectangular, quadratic or C-shaped. The interior profile is formed by paths directed with its cross-section transversely or diagonally to the centre of the cross-section area of the hollow profile rungs, where the paths have a distance to each other and proceed itself in longitudinal direction in interior of the hollow profile rungs. The distance of the cross-section of the path opposite itself in the diagonals in the interfering area of the screw is smaller than the external diameter of the screw thread and larger than the diameter of the thread base. The interior profile is formed in the interior of the hollow profile rungs from two angle- or crescent-shaped interior profile oriented in the direction to the center of the cross-sectional area of the hollow profile rungs, on both external paths of the hollow profile rungs arranged parallel to the glass plate oppositively lying in the use position, where the interior profile proceeds in the extending direction of the hollow profile rungs. The screw has a thread outer diameter of 2.5-3 mm.

Description

The invention relates to an insulating glass pane having at least two individual glass panels, a spacer frame arranged between them and a grid rail held in the interior of the insulating glass pane and held on the spacer frame by means of these fastening elements, consisting of plastic or metal hollow profile bars whose hollow cross section has at least two interconnected, having spaced, in particular parallel outer webs.

The DE 10 2005 056 123 A1 shows an insulating glass, are provided in the hollow profile rungs for connection to the spacer frame at the free ends frontally with adapter pieces made of plastic or steel, in the externally, through the spacer frame introduced through fasteners, such as screws or clamps engage the hollow profile rungs on the spacer frame to fix. Such insulating glass panes have proven useful, however, require for the attachment of the hollow profile rungs, a complex pre-assembly of the adapter pieces.

From the DE 196 42 669 C1 An arrangement is known in which the sprouts are each composed of sprout profile parts, which means an increased effort.

It is therefore an object to provide an insulating glass pane of the type defined, in which the attachment or mounting of the hollow profile rungs on the spacer frame requires a relatively low effort.

To solve this problem, it is provided that the fastener in the position of use frontally engages directly on the inside of the respective hollow profile rung and this has a matching to the fastener receiving geometry that the receiving geometry and the hollow profile rung are integrally formed and connected and the receiving geometry in the direction of extension of the hollow profile rung inside profiling is internal profiling and that the internal profiling of the receiving geometry in the interior of the hollow profile rung of at least two opposite in use position, parallel to the glass sheets arranged outer webs of the hollow profile rung web, angle or arcuate, with its cross-section towards the center of the cross-sectional area the hollow profile rung oriented inner profiles is formed, which continue in the extension direction of the hollow profile rung and are spaced apart such that the Befes has an oversize support between the two inner profiles.

Since the fastener engages directly on the inside of the hollow profile rung, can on an expensive to manufacture and to be mounted adapter piece, the assembly before mounting the insulating glass as a counterpart for the fastener in the front, the spacer frame facing end of the hollow profile rung must be introduced, be dispensed with. The fastener can be connected through the spacer frame directly with the belonging to the hollow profile rung receiving geometry and can fix the lattice grating in a simple way on the spacer frame of the insulating glass.

Due to the inside distance of the inner profiles, the fastener can be inserted between them while their distance may be introduced against the elasticity of the outer webs of the integral hollow profile rung.

It is advantageous if the receiving geometry in the interior of the hollow profile rung has a material-free cross-section whose clear dimension is at least partially smaller than the outer diameter of the fastening element. After introduction of the fastener in the material-free cross-section of the receiving geometry, it is possible due to the dimensions described that an at least non-positive connection between the fastener and hollow profile rung can be produced with which the lattice grating can be attached to the spacer frame.

In this case, a particularly advantageous embodiment provide that the fastening element is a screw. When using screws for fastening the rung grid in the insulating glass results in a form-locking connection via the thread of the screw between the hollow profile rung and the spacer frame. In addition, a frictional component may additionally occur. The lattice grating can be fixed in this way in the insulating glass, that hitting the hollow profile rungs to the inner sides of the glass sheets and a resulting rattling in a later use of a can be avoided with the insulating glass window equipped window.

It may be expedient if the screw has an excess compared to the material-free cross section of the receiving geometry and if the screw engages with its thread in the mounting position at least partially in the material of the receiving geometry. This makes it possible that the screw engages in the use position on the inside of the hollow profile rung forming outer webs, the dimension and shape of the hollow profile rung and the screw are chosen so that the outer webs of the hollow profile rung itself form the receiving geometry for the screw.

It is advantageous if the clear dimension of the material-free cross section of the receiving geometry is at least partially smaller than the outer diameter of the thread of the screw and equal to or greater than the diameter of the thread root. Such a designed receiving geometry allows the screw on the one hand engage with its thread in the structure of the receiving geometry and on the other hand it can be avoided that the screw damage or stretch the receiving geometry and / or the hollow profile rung.

In order to make the installation of the insulating glass as simple as possible, it is possible that the spacer frame facing the front end of the hollow profile rung before assembly without thread and the fastener is a self-tapping screw. When using self-tapping screws, the thread for the screwing and fastening of the hollow profile rung can be generated during the screwing of the screws. Pre-drilling and / or previous threading is not necessary, which reduces the effort Attachment of the lattice grating can be kept small.

For accurate positioning and subsequent attachment of the hollow profile rungs on the spacer frame in the insulating glass, it may be advantageous if the receiving geometry for the fastener is arranged centrally in the hollow cross section of the spacer frame facing the end of the hollow profile rung. Centric means in this context that the receiving geometry in the center of the cross section of the hollow profile rung forming intersection of two cross-sectional central axes of the hollow profile rung is arranged and engages the fastener frontally so in the receiving geometry that the longitudinal center axis of the fastener and the longitudinal center axis of the receiving geometry match or congruent and perpendicular to the cross-sectional area of the hollow profile rung.

In another embodiment of the insulating glass pane according to the invention, the receiving geometry of the hollow profile rung formed by spaced internal profiles may have at least one projection or web projecting inwardly into the hollow cross-section, at least in the engagement region of the fastening element. Thus, it is possible to create a reliable connection between spacer frame and hollow profile rung with the least possible use of material. This embodiment can be used in particular in thin-walled hollow profile rungs, in which a direct cutting of the screw in the outer webs of the hollow profile rung is not desired. Thus, hollow profile rungs can be used with a larger cross-section at a consistently small, for the spacer frame screw diameter.

Furthermore, it is possible for the two spaced-apart inner profilings to have a plurality of projections or webs projecting into a material-free cross-section, against which the fastening element or the thread of the screw engages.

Such an internal profiling can be formed during the manufacturing process of the hollow profile rung. The hollow profile rungs can for example be cut to size as required by an endless strand of any desired length and fixed to the spacer frame in the manner already described with a fastening element.

An embodiment of the invention can provide that the spaced inner profiles are formed by a total of four with their cross-sections obliquely or diagonally directed to the center of the cross-sectional area of the hollow profile rungs webs, which have a distance from each other and continue in the longitudinal direction in the interior of the hollow profile rung, and that the Distance of the cross sections of each other in the diagonal bars opposite at least in the engagement region of the screw is smaller than the outer diameter of the screw thread and larger than the diameter of the thread root. When using screws for fastening the hollow profile rungs, these dimensions may be favorable to allow a secure attachment of the lattice grating without damaging the inner profile or the hollow profile rung when screwing the screws.

Furthermore, it is possible that in each case two inwardly directed webs of the spaced inner profiles form an angle with each other. This also gives a good attack of the fastener between these webs provided on the outer webs inside.

It may be favorable if the screw has a thread outer diameter of about two millimeters to about five millimeters, in particular about two and a half or three millimeters. As a result, expansion and / or damage of the hollow profile rung when screwing the screw can be avoided. In addition, a thickening or even damage to the spacer frame can be avoided when using such sized screws.

Fig. 1

eine Ansicht einer erfindungsgemäßen Isolierglasscheibe mit einem Sprossengitter aus drei Hohlprofilsprossen,

Fig. 2

eine vergrößerte Ansicht der in Figur 1 mit Z markierten Einzelheit, wobei die Hohlprofilsprosse an ihrem dem Abstandhalterrahmen zugewandten Ende teilweise als Längsschnitt aufgebrochen dargestellt ist,

Fig. 3

einen Querschnitt des in Figur 2 dargestellten Teils der Isolierglasscheibe gemäß der Schnittlinie III-III mit einer in das Innenprofil geschraubten, den Abstandhalterrahmen durchsetzenden Schraube als Befestigungselement,

Fig. 4

eine schematische Darstellung einer Hohlprofilsprosse, eines Teils des Abstandhalterrahmens sowie einer Schraube vor der Montage.

Fig. 5

eine Seitenansicht der Elemente aus Figur 4 in mon- tiertem Zustand,

Fig.6

einen Querschnitt einer Hohlprofilsprosse mit zwei sich gegenüberliegenden, das Befestigungselement oder die Schraube zwischen sich aufnehmenden, im Querschnitt winkelförmigen Innenprofilen, die zwischen sich einen Abstand haben sowie

Fig.7

eine abgewandelte Hohlprofilsprosse mit aus vier diagonal zum Zentrum des Querschnitts orientierten Stegen gebildeten Innenprofilen, die der Aufnahme der Schraube dienen.

Hereinafter, embodiments of the invention are described in more detail with reference to the drawing. It shows in partly schematized representation:

Fig. 1

a view of an insulating glass pane according to the invention with a lattice grating of three hollow profile rungs,

Fig. 2

an enlarged view of the in FIG. 1 Z marked detail, wherein the hollow profile rung is shown broken at its end facing the spacer frame partially broken as a longitudinal section,

Fig. 3

a cross section of the in FIG. 2 represented part of the insulating glass pane according to the section line III-III with a screwed into the inner profile, the spacer frame passing screw as a fastener,

Fig. 4

a schematic representation of a hollow profile rung, a part of the spacer frame and a screw before mounting.

Fig. 5

a side view of the elements FIG. 4 in mon condition,

Figure 6

a cross-section of a hollow profile rung with two opposite, the fastening element or the screw between them receiving, in cross-section angular inner profiles, which have a distance between them and

Figure 7

a modified hollow profile rung formed with four diagonally oriented to the center of the cross section webs inner profiles, which serve to receive the screw.

In the following description of various embodiments obtained in their function matching parts even with different configuration matching reference numerals.

An Isölierglasscheibe 1 has according to Fig. 3 and Fig. 1 two individual glass sheets 101 and 102, a space between them arranged spacer frame 6, a arranged in the interior 100 of the insulating glass pane 1, held on the spacer frame 6 by means of the spacer frame 6 fastening elements held lattice grating 2, consisting of plastic or metal hollow profile rungs 3, the hollow cross section 31st has at least two interconnected, spaced, in particular parallel outer webs 32 and 33. Various embodiments of the hollow profile rung 3 also show the FIGS. 6 and 7 ,

The arrangement of the lattice girder 2 of two horizontally extending hollow profile rungs 3 and one of these two crossing at right angles hollow profile rung 3 can be particularly well in Fig. 1 detect.

As a fastener is used in all embodiments, a self-tapping screw 7, according to Fig. 2 to 5 in the position of use the front side directly on a with the inside of the hollow profile section 3 integrally connected and to the screw 7 matching receiving geometry 8 attacks, according to the 6 to 12 can be designed differently.

Fig. 3 and also the enlarged view of the marked Z detail Fig. 1 in Fig. 2 illustrates the position of the screw 7 in the hollow profile rung 3. It can be seen that the screw 7 penetrates the spacer frame 6 and the front side engages in the hollow profile rung 3 and the receiving geometry 8. The two glass sheets 101 and 102 positioned parallel to the hollow profiled profile 3 are connected to one another via the spacer frame 6 and a sealing edge composite 10 which surrounds them circumferentially.

The schematized side views 4 and 5 show the hollow profile rung 3, the spacer frame 6 and the screw 7 before or after assembly.

In the FIGS. 6 and 7 it can be seen that the recording geometry. 8 in the interior of the hollow profile rung 3 has a material-free cross-section 11, the clear dimension is at least partially smaller than the outer diameter K of the fastener or the screw 7.

When using self-tapping screws 7, the spacer frame 6 facing the front end of the hollow profile rung 3 can be unthreaded before mounting. In the Fig. 2 or Fig. 3 already in position of use screw 7 has therefore during screwing the necessary Thread in the receiving geometry 8 of the hollow profile rung 3 itself generates, which consists of a material that allows the cutting of the thread of the screw 7.

The outer diameter of the screw 7 is in the FIGS. 6 and 7 marked by the circle marked K. It can be seen that the dimension of the outer diameter of the screw 7 relative to the dimension of the receiving geometry 8 is always selected so that the screw 7 has a certain excess over the existing material-free cross-section 11 of the receiving geometry 8, so that the screw 7 with its thread in Assembly position according to FIGS. 2, 3 and 5 at least partially cut into the material of the receiving geometry 8.

To facilitate the introduction of the screw 7 and the attachment of the hollow profile rung 3 on the spacer frame 6, the receiving geometry 8 for the fastener or the screw 7 -. According to FIGS. 6 and 7 - Centrically arranged in the hollow cross section 31 of the spacer frame 6 facing the end of the hollow profile rung 3. Centric means in this context that the screw 7 engages in the receiving geometry 8, that the longitudinal center axis M of the screw 7 extends perpendicularly through the center of the hollow cross section 31 of the hollow profile rung 3, that is identical to the longitudinal center axis of the hollow profile rung 3.

An embodiment of the hollow profile rung not shown here can also provide that the receiving geometry 8 is formed by one of the two outer webs 32 or 33 and an additional projecting into the inner hollow section 31 projection or web into which a correspondingly sized screw can cut.

The FIGS. 6 and 7 The hollow profile extrusions 3 shown here are at least in the engagement region of the screw 7, each with a one-piece, on the inside connected to the outer webs 32 and 33 of the hollow profile rung 3, extending in its extension direction, the receiving geometry 8 forming internal profiling. 9 fitted.

The inner profiling 9 on the two outer webs 32 and 33 favor a stiffening of the entire hollow profile rung 3 and thus also a stiffening of the entire rung grid. 2

The inner profiling 9 but also according to Fig. 7 of four with their cross-sections obliquely or diagonally directed to the center of the cross-sectional area of the hollow profile rung 3 webs 13 may be formed, which have a distance a to each other and continue in the longitudinal direction in the interior of the hollow profile rung 3. Again, the distance a of the cross sections of the diagonally opposite webs 13 at least in the engagement region of the screw 7 is smaller than the outer diameter K of the screw thread, but larger than the diameter of the threaded base of the screw 7, not shown.

Another type of internal profiling 9 is according to Fig. 6 of two angular or arcuate inner profiles 14, which are arranged on the two opposite, the hollow profile rung 3 forming outer webs 32 and 33 and oriented towards the center of the cross-sectional area of the hollow profile rung 3 and continue in the direction of extension of the hollow profile rung 3. Again, the size and arrangement of the inner profiles 14 are chosen so that one through the Circle K indicated screw 7 with security cuts into the material of the inner profiles in order to ensure the necessary for the attachment of the hollow profile rung 3 to the spacer frame 6 stop. The introduction of the screw 7 is favored by the existing between the two inner profiles 14 distance.

The insulating glass window 1 has two glass sheets 101 and 102, a lattice girder 2 of hollow profile rungs 3, the cross section each having two opposing outer webs 32 and 33, and having a hollow cross section 31 and which are connected to a spacer frame 6, the two glass sheets 101 and 102 connects via an edge bond 10 with each other. For the attachment of the hollow profile rungs 3 to the spacer frame 6 serve fasteners and / or screws 7. These engage through the spacer frame 6 through directly into the hollow profile rungs 3 and can there the holding forces necessary for fixing - without stopper or use - directly transmitted. In this case, receiving geometries 8 may be provided in the hollow profile rungs 3, which are essentially formed by the outer webs 32 and 33 or arranged in the hollow cross-section 31 of the hollow profile extrusions 3 inner profiles 9 and serve to receive the fasteners and / or screws 7.

Claims (12)

Insulating glass pane (1) with at least two individual glass sheets (101, 102), a spacer frame (6) arranged in the interior space (100) of the insulating glass pane (1), and held on the spacer frame (6) by means of fastening elements passing through them ( 2), consisting of plastic or metal hollow profile rungs (3), the hollow cross-section (31) at least two interconnected, spaced, in particular parallel outer webs (32,33), characterized in that the fastener in the use position frontally directly on the inside engages the respective hollow profile rung (3) and this has a matching to the fastener receiving geometry (8), that the receiving geometry (8) and the hollow profile rung (3) are integrally formed and connected and the receiving geometry (8) as in the extension direction of the hollow profile rung (3 ) inside running internal profiling is and that di e inner profiling of the receiving geometry (8) in the interior of the hollow profile rung (3) of at least two opposite webs in the position of use, parallel to the glass panels arranged outer webs (32, 33) of the hollow profile rung (3) web, angle or arcuate, with its inner cross-section in the direction of the center of the cross-sectional surface of the hollow profile rung (3) is formed, which extend in the direction of extension of the hollow profile rung (3) and are spaced apart such that the fastener has an excess of support between the two inner profiles. Insulating glass pane according to claim 1, characterized in that the receiving geometry (8) in the interior of the hollow profile rung (3) has a material-free cross-section (11) whose clear dimension is at least partially smaller than the outer diameter (K) of the fastening element. Insulating glass pane according to claim 1 or 2, characterized in that the fastening element is a screw (7). Insulating glass pane according to one of claims 1 to 3, characterized in that the screw (7) has an excess over the material-free cross-section (11) of the receiving geometry (8), and that the screw (7) with its thread in the assembly position at least partially in the Material of the receiving geometry (8) engages. Insulating glass pane according to one of claims 1 to 4, characterized in that the clear dimension of the material-free cross section (11) of the receiving geometry (8) at least partially smaller than the outer diameter (K) of the thread of the screw (7) and equal to or greater than the diameter of the thread root is. Insulating glass pane according to one of claims 1 to 5, characterized in that the spacer frame (6) facing the front end of the hollow profile rung (3) prior to installation without thread and the fastener is a self-tapping screw (7). Insulating glass pane according to one of claims 1 to 6, characterized in that the receiving geometry (8) for the fastening element is arranged centrally in the hollow cross section (31) of the spacer frame (6) facing the end of the hollow profile rung (3). Insulating glass pane according to one of claims 1 to 7, characterized in that the receiving geometry formed by spaced inner profiles (8) of the hollow profile rung (3) at least in the engagement region of the fastening element at least one inwardly into the hollow cross-section (31) projecting projection or web (13) , Insulating glass pane according to one of claims 1 to 8, characterized in that the two spaced internal profiles have a plurality of protruding into a material-free cross-section (11) projections or webs (13) on which the fastening element or the thread of the screw (7) acts. Insulating glass pane according to one of claims 1 to 9, characterized in that the spaced inner profiles of a total of four with their cross-sections obliquely or diagonally directed to the center of the cross-sectional area of the hollow profile rung (3) webs (13) are formed, which are a distance (a) to each other have and in the longitudinal direction in the interior of the hollow profile rung (3) continue, and that the distance (a) of the cross sections of the diagonally opposite webs (13) at least in the engagement region of the screw (7) smaller than the outer diameter (K) of the Screw thread and larger than the diameter of the thread root is. Insulating glass pane according to one of claims 1 to 10, characterized characterized in that each two inwardly directed webs (13) of the spaced inner profiles form an angle with each other. Insulating glass pane according to one of claims 1 to 11, characterized in that the screw (7) has a thread outer diameter of about two millimeters to about five millimeters, in particular about two and a half or three millimeters.

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