EP1933000B1 - Supporting device for plate-shaped elements - Google Patents

Description

The invention relates to a method for fixing a holder for plate-shaped components according to the preamble of claim 1. The plate-shaped components are in particular insulating glass panes. The underlying the method holders are disposed between the plate-shaped components or between an edge of the substructure and a plate-shaped component and project with a holding arm for depressing the component in a mounting groove, which is arranged on the edge of the component. The support arms press the plate-shaped component against abutment of the substructure and hold so, optionally together with a lateral or upper or lower guide the device in position. The holders themselves can be connected to the substructure via fastening means, wherein the substructure has receptacles for the fastening means into which the fastening means can be positively inserted.

A common application for such holders is the attachment of insulating glass panes on a glazed facade. The receptacles for the fastening means are usually in this embodiment Schraubkanäle. The holders then have through holes through which fastening screws can be screwed into the screw channels. In principle, the field of application of the holders according to the invention and the associated substructure covers all forms of plate-shaped components which are to be fastened to a vertical or horizontal surface. The components can be flat or curved.

A preferred application of the invention is the attachment of insulating glass panes. In facade construction usually insulating glass panes are used, which have an inner pane and an outer disc spaced therefrom, wherein between these panes is an edge seal, consisting of a spacer profile and an outer seal. In this edge bond mounting grooves are arranged in this embodiment, which receive a portion of the holder and thus allow the holder presses the insulating glass panes on the substructure. A variant uses the through the two discs and the im Disc space recessed Isolierglasrandverbund as the holder receiving groove.

The fastening grooves can be produced, for example, by arranging U-shaped strips between the glass panes before the sealing is produced, so that these U-shaped strips later form the fastening grooves and are adhesively bonded in the insulating glass pane.

A facade construction with holders of this kind is from the WO 2004/063517 known. The holders described therein have two lateral support arms, which protrude after rotation of the holder during assembly in the mounting grooves and the clamp the substructure facing sides of the mounting grooves after screwing the holder in a screw of the substructure between them and the substructure.

For fixing the holders, it is proposed in this document to attach and rotate the holders with a special tool, the fastening screw being screwed through the tool into the fastening groove penetrating the holder.

The disadvantage of the known configuration is that the tool must be held until the fastening screw is screwed in. Only after attachment via the fastening screw, the tool can be removed, usually the installer with one hand must hold the tool while he screwed in with the other hand, the fixing screw.

The WO 02/35045 A1 shows a similar construction, in which, however, first the holder and then the components must be mounted. From the WO 96/11310 A1 is a complex assembly of a facade is known in which the holder is mounted after insertion of retaining arms of individual parts before the next disc is attached. The disadvantage of this solution is the comparatively complicated assembly of the holder, which is also costly.

The object of the invention is therefore to provide a method for fastening the holder, in which the holders are inexpensive and easy to install.

This object is achieved according to the invention by a method according to claim 1

Due to the inventive design of the fastening method for the holder, the individual holders can now be easily recognized and fixed on the site. Since the holder has an anti-rotation, the holder can now be recognized first, without equal to the attachment of the holder must be made to the substructure. This allows, for example, a first fitter to place the holders between the laid out plate-shaped components, while a second fitter attaches the previously positioned holders.

Due to the division of the working steps, a large number of holders can be positioned particularly quickly. On the other hand, the fastening of the holder can be independent of the positioning, so that the fitter no longer has to pay particular attention to the position of the holder and, in particular, no longer has to additionally fix the holder.

The holders can be designed in various ways. An essential feature is the fact that the temporary position positioning is provided by the elastic clamping means.

The elastic clamping means can be formed in a particularly preferred embodiment of the invention of a sleeve or a ring and pushed onto the free ends of the holder. Such a holder has a central base body from which extend the support arms laterally projecting, wherein the usual holder, which is arranged between two opposing components having two opposing support arms. At the corners and edges of the facade and other holders can be used, such as holders, which have only one support arm or angularly arranged to each other holding arms. The elastic tensioning means is preferably made of a rubbery, elastic material. The term "rubbery" should be described in connection with this application any elastic, artificial material. This may be a natural rubber, an artificial rubber or else an elastic plastic, for example acrylonitrile butadiene styrene (ABS). A thermoplastic material, such as polyamide (PA) is preferably used. What is important is the fact that on the one hand the elastic tensioning means applies the corresponding retention force to form the temporary positional positioning, but on the other hand can permanently apply the holding force to the fastening groove without relaxing.

Of course, the elastic tensioning means may also comprise a metallic element which can be pressed against the force of a spring against the retaining arm. However, such mechanical constructions usually have the disadvantage that they can only be produced with high production costs.

Preferably, the elastic tensioning means is arranged on the side facing away from the substructure of the support arm. In this way, the opposite region of the support arm can be formed pressure-stable, while the elastic tensioning means can be dimensioned sufficiently elastic so that it can be easily inserted into the mounting groove over a wider temperature range, as it can usually be on construction sites.

In the case of the above-mentioned sleeve, for example, one side can have a greater wall thickness, which then forms the elastic tensioning means. Also, one side of the sleeve may be provided with additional elevations. The sleeve can be manufactured as a separate component and later pushed onto the metallic holder. Alternatively, the sleeve can also be vulcanized directly onto the holding arm. Instead of the sleeve and rings or even mandrels can be used, wherein such a mandrel can be inserted through a through hole in the arm and can project on both sides with a more or less raised area.

If the spring-like clamping means is formed by a separate component, it can be connected to the free end of the holder arm via an additional anti-slip device. Such Abrutschsicherung not be formed either by an elastic clamping force, an adhesive force or a positive connection.

As an alternative to a rubber-like design of the elastic clamping means, this may also be formed by the holding arm itself, if this is bent accordingly, so that it can be elastically clamped in the fastening groove, comparable to a spring plate. For this purpose, for example, the free end of the holder arm can be bent by approximately 180 °. Thus, the support arm can be easily threaded into the mounting groove in this embodiment, it can also be bent in the transverse direction.

The holder is preferably attached via a special tool. This special tool can be manufactured cheaply and has a neck area with which it can be attached to the holder. This approach area can be configured like a conventional screwdriver, alternatively, it can also be formed by two plates which are attachable to the side of the holder, so that the attached special tool rotates the arranged between the plates holder.

In order to be able to position the holder particularly easily with such a tool, an additional feature can be formed by a pin-like positioning aid. This positioning aid is disposed between the plates or extends from the screwdriver blade portion of the tool towards the holder in the form of a mandrel. This mandrel can be inserted through the through hole of the holder into the screw channel of the substructure. After rotating the holder around the mandrel, the tool can then be withdrawn again, since the holder is now held in place by means of the anti-rotation and positional fixation.

Further features and advantages of the invention will become apparent from the following description of preferred embodiments of holders for implementing the method according to the invention with reference to the drawings.

Fig. 1

eine Seitenansicht der Verbindungsstelle zweier plattenförmiger Bauelemente, die über einen erfindungsgemäßen Halter an einer Unterkonstruktion befestigt sind, und

Fig. 2

eine weitere Ansicht der Befestigung zweier plattenförmiger Bauelemente mit angesetztem Montagewerkzeug.

In the drawings shows:

Fig. 1

a side view of the junction of two plate-shaped components which are attached via a holder according to the invention to a substructure, and

Fig. 2

another view of the attachment of two plate-shaped components with attached mounting tool.

In FIG. 1 a facade construction is shown as an exemplary application of the invention, in which the holder according to the invention were used. Here, 4 insulating glass panes are used as plate-shaped components 1 on a substructure. These insulating glass panes have two spaced-apart individual panes, which are firmly connected to each other. In the marginal areas between the individual panes grooves are introduced through which the insulating glass panes can be attached to the substructure 4. For this purpose, the holder according to the invention are used, one of which in the central region of FIG. 1 is shown as a section of a larger facade.

The holder has a central area with a through hole, via which it can be screwed to the substructure 4. Such a holder is inserted into profiles which are placed between the discs to push the discs against the substructure. The profiles and the holders have a Nutauf, in the later, after mounting the holder on the screw, a foam bed 7 can be used. This foam bed 7 essentially serves as a bearing for the later silicone layer 6 which is arranged between the two outer panes of two disks facing each other. Furthermore, the foam bed 7 serves as additional thermal insulation. The holder according to the invention have on the side excellently two opposing support arms 3, which press the opposite glass panes against the substructure.

For this purpose, the holding arms 3 engage in the grooves 2, so that when tightening the holder, a clamping force on the substructure 4 facing side of the grooves can be applied. The holders have to form an anti-rotation or a temporary position positioning before the screw is fastened to the outer regions of the support arms according to the invention an elastic clamping means 5, that in the embodiment shown is sleeve-like pushed onto the ends of the support arms. This is only an embodiment, all other types of clamping means, which are adapted to apply a clamping force between the walls of the grooves can be used.

The holder itself is provided in the central region with a groove-shaped depression in the region of the contact surface with the substructure 4, so that the substructure 4 can engage with a mounting strip projecting against the holder into this groove-shaped contact surface. This causes an additional centering and anti-rotation for the holder after the screw was tightened.

FIG. 2 shows the embodiment of the invention FIG. 1 before filling the gap between the two, opposite glass with attached mounting tool 8. Due to the particular embodiment of the holder according to the invention, this assembly tool 8 can now be recognized only when the holder is already positioned in the joint, the elastic clamping means 5 prevent displacement of the Halters also without attachment of the Screw connection, so that the mounting of the holder can be done independently of the final attachment as an upstream step.

LIST OF REFERENCE NUMBERS

1

Plate-shaped component

2

mounting groove

3

holding arm

4

substructure

5

Elastic tensioning device

6

silicone joint

7

foam bed

8th

assembly tool

Claims (12)

1. Method for installing a holder for plate-shaped structural elements (1) on a substructure (4), wherein the plate-shaped structural elements (1) have a fastening groove (2) arranged on the side in the border on at least one edge and the substructure (4) has a recess for the holder on at least one side adjacent to the fastening, plate-shaped structural elements (1), in which recess the holder can be fastened by fastening means, and wherein the holder has a central region formed by a central base body with a through hole for screwing to the substructure (4), and at least one retaining arm (3) protruding laterally from the base body to press the plate-shaped structural element (1) to the substructure (4), wherein the method comprises the steps to insert the holder between the positioned plate-shaped structural elements (1), twisting the holder and the retaining arm (3) such that the retaining arm (3) extends into the fastening groove (2), and fastening the holder to the substructure (4), such that the plate-shaped structural element (1) is forced by the retaining arm (3) to the substructure (4), characterised in that
   holders are used that have an elastic clamping means (5) to form an anti-rotation device for the holder that is not yet fastened and to provide temporary positioning, wherein, in a first step, the holder is positioned without it being fastened on the substructure (4) so that the retaining arm (3) is retained in the fastening groove (2), clamped between side walls of the fastening groove (2), and, in a subsequent step, the holder positioned previously is fastened to the substructure (4).
2. Method for installing a holder according to claim 1, characterised in that a holder is used in which the elastic clamping means (5) is formed as a sleeve (6) pushed on to a free end of the retaining arm (3).
3. Method for installing a holder according to the preceding claim, characterised in that a holder is used whose sleeve (6) is made from a rubbery, elastic material.
4. Method for installing a holder according to either one of the two preceding claims, characterised in that a holder is used in which the sleeve (6') has an insertion opening open on one side for the retaining arm (3) wherein the retaining arm (3) is inserted into the insertion opening while overcoming elastic prestress.
5. Method for installing a holder according to any one of claims 2, 3 or 4, characterised in that a holder is used in which the sleeve (6) has a spring-like clamping device on the side away from the substructure (4) with the holder fitted.
6. Method for installing a holder according to the preceding claim, characterised in that a holder is used in which the spring-like clamping device is formed from a thickened, elastic wall region of the sleeve (6).
7. Method for installing a holder according to claim 1, characterised in that a holder is used in which the elastic clamping means (5) are formed from a rubbery clamping mandrel wherein the retaining arm (3) has a through hole in which the clamping mandrel is inserted but projects, and the clamping mandrel, with a front region and a rear region extends beyond retaining arm (3).
8. Method for installing a holder according to the preceding claim, characterised in that a holder is used in which the front and rear region of the clamping mandrel is designed in the form of a hemisphere wherein the front and the rear region can be pushed into the fastening groove (2) under elastic compression.
9. Method for installing a holder according to claim 1, characterised in that a holder is used in which the elastic clamping means (5) are formed from a section of the retaining arm (3) which can be clamped into the fastening groove (2) under elastic deformation.
10. Method for installing a holder according to any one of the preceding claims, characterised in that, in order to form the elastic clamping means (5), a holder is used in which the free end of the retaining arm (3) is bent by more than 135° in a transverse direction and the retaining arm (3) is rounded to form a threading aid so that, when pushing into the fastening groove (2), the rounded region of the retaining arm (3) is supported on the rims of the fastening groove (2).
11. Method for installing a holder according to claim 9, characterised in that a holder is used in which the holder and the retaining arm (3) are made from a metallic material and the elastic clamping means (5) are formed from a vulcanised or glued region on the retaining arm (3) which is rounded on its lateral edges to avoid shearing off during assembly.
12. Method for fastening a multiplicity of plate-shaped structural elements (1), arranged adjacent to each other and/or one over the other, to a building or similar in which the plate-shaped structural elements (1) are attached to the substructure joined solidly to the building by holders arranged between the structural elements (1), characterised in that the individual holders are installed in accordance with a method according to any one of the preceding claims, wherein, in a first step, the holders are positioned without being fastened on the substructure between the positioned plate-shaped structural elements, and, in a second step, the holders positioned previously are fastened to the substructure.

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