EP3916191A1 - System for fixing a functional unit of a building opening shading device - Google Patents

Abstract

In a system for securing a functional unit (4) of a building opening shading device in an associated, downwardly open receiving space (3) of a shell that can be installed on the building side, with a fastening bracket arrangement which can be preassembled in the receiving space (3) of the shell and has at least one downwardly open U- shaped mounting bracket (13) and a box (5) assigned to the functional unit (4), which can be pushed into the mounting bracket arrangement from below and can be fixed to it in the pushed-in state, is then achieved through universal usability that on the elements that can be pushed into one another in the form of the Fastening bracket arrangement and the box (5) on the one hand at least one locking bolt (17) having a horizontal locking edge (24) and on the other hand a retraction recess (18) associated therewith and having a horizontal delimiting edge facing one of the locking edge (24) on the bolt side, the locking bolt ( 17) with e In an end region it can be moved beyond the delimitation of the element receiving it facing the associated entry recess (18) and can be brought into engagement in the associated entry recess (18) of the other element.

Description

The invention relates to a system for fastening a functional unit of a building opening shading device in a fastening arrangement that can be preassembled on the building side, wherein the functional unit can be introduced into the fastening arrangement and can be fixed to it in the inserted state.

An arrangement of this type is, for example, from EP 2 500 507 B1 known. In this known arrangement, U-shaped fastening brackets are provided to form the fastening arrangement, which are provided on their underside with a pivotable striker that can be brought from an open position into a closed position, which in the open state enables the functional unit, which is provided here with a box-shaped housing, to be pushed in and when closed it engages under it so that it is secured against slipping out as desired. During the actuation of the striker, however, the inserted functional unit must be manually held in position and secured against falling. However, this proves to be very difficult and exhausting. The known arrangement therefore proves to be not easy enough to assemble.

Proceeding from this, it is therefore the object of the present invention to improve a system of the type mentioned at the beginning in such a way that a high level of ease of assembly is achieved.

According to the invention, this object is achieved in that, in a system of the type mentioned at the beginning, the elements that can be brought into engagement with one another in the form of the fastening arrangement and the functional unit are assigned at least one locking device which, when the functional unit is inserted into the fastening arrangement, automatically comes into its blocking position and at least that Transferring the own weight of the functional unit to the fastening arrangement and defining the position of the functional unit in at least one spatial direction.

These measures allow a very simple and work-friendly assembly of the functional unit. The fitter brings the functional unit and the preassembled fastening arrangement together and does not need any additional person or tools for this. The functional unit is then already stuck so that further activities can follow without having to additionally hold the functional unit by hand.

Advantageous refinements and expedient further developments of the superordinate measures are specified in the subclaims.

Thus, according to a particularly preferred embodiment of the invention, it can be provided that the locking device has at least one, preferably resilient locking lug provided on each of the elements that can be brought into one another, and a supporting edge assigned to the other element, which in the locking position is supported by the locking lug is undercut. Due to its spring action, the resilient locking lug automatically moves into its locking position, which engages under the assigned supporting edge, which not only results in a defined termination of the insertion process, but also reliable locking and adequate securing of the functional unit against falling. Another advantage can also be seen in the fact that the underside of the functional unit remains free, so that a possibly provided lower outlet slot for a shading element is not blocked or hindered.

Another advantageous measure can consist in that the fastening arrangement is designed as a fastening bracket arrangement, which preferably has two fastening brackets assigned to the end regions of the functional unit, and that the locking device is assigned to the region of the fastening brackets. This results in a particularly stable and simple design.

The functional unit can expediently have a base part, which is preferably provided at its ends with side panel caps bridged by a peripheral panel, with both fastening brackets assigned to the end areas of the functional unit being assigned a resilient locking lug and the base part having a continuous support edge in the area of its panel has locking lugs for both. These measures result in a particularly reliable hold of the functional unit and a simplification of the construction of the locking device.

In a further development of the above measures, each locking lug can be arranged at the end of an associated leg spring, which is attached with its end remote from the nose on the associated mounting bracket, the leg spring preferably being provided on the side of the mounting bracket facing away from the outside of the functional unit, which is one of the locking lugs has associated passage window through which the locking lug can protrude inward. The leg spring results in a long spring arm, which makes it easier to provide a large spring deflection so that the locking lug can come into a reliable locking position without the spring force to be overcome when inserting the space delimitation of the functional unit into the associated mounting bracket arrangement becoming undesirably high.

Advantageously, each locking lug can have a downward sloping contact surface. With this, the locking nose runs when the functional unit is introduced into the associated fastening arrangement at the facing upper corner of the functional unit, whereby the locking nose is slowly deflected laterally in the course of the introduction process and the spring is tensioned, which causes the The introduction process is facilitated. The locking lug can easily have a comparatively great height, which in the locking position enables a large overhang inward and thus a particularly reliable fixation of the functional unit introduced into the fastening arrangement.

A further useful measure can consist in the fact that the side leg of each fastening bracket facing away from the locking device, preferably facing outwards, is designed as a spring leg inclined inwardly, the free end of which can be designed as an inlet guide that is bent outwards at an angle and that of the approaching functional unit is deflectable outside. This ensures that the fastening bracket is slightly bent up when the functional unit is introduced or pushed in and thus rests against the functional unit without play under the action of the spring force of the spring leg, which results in a wobble-free arrangement.

A further preferred embodiment can consist in that the elements which can be brought into engagement with one another can additionally be locked against one another by means of a manually operated locking device. For this purpose, at least one locking bolt with a locking edge can be provided on each of the elements that can be inserted one into the other, and on the other one associated with this, one of the locking edge facing the locking edge facing the locking edge can be provided, wherein the locking bolt with an end region over the delimitation of the associated retraction recess facing receiving element can also be moved and brought into engagement in the associated drive-in recess of the other element. These measures ensure that the functional unit, when it is introduced into the fastening arrangement, initially only needs to be temporarily secured against falling by means of the locking device, since it can then be finally secured to the fastening arrangement by means of the additional locking device. This enables a simple and easy design of the locking device and advantageously ensures double protection against falling of the functional unit. A locking bolt can advantageously be mounted on each diaphragm cap and each Mounting bracket have a drive-in recess assigned to this, which results in good stability. The locking bar can expediently be designed as a pivot lever rotatable about a vertical axis, preferably designed as an angle lever, and a horizontal latching edge which can be traversed by the locking bar can be provided in the area of the associated entry recess. A rotatable pivot lever can advantageously be moved without tilting or jerking, with the locking edge that can be traversed not only signaling the end of the pivoting movement, but also ensuring adequate security against undesired loosening.

The locking device and any locking device that may be provided can expediently be positioned at a height such that the upper side of the functional unit is spaced apart from the upper end region of the fastening arrangement in the end position introduced into the associated fastening arrangement. This ensures that an interspace remains between the top of the fully inserted functional unit and the upper delimitation of the fastening arrangement, so that organs such as cables etc. emerging from the functional unit upwards are not pinched.

In a further development of the superordinate measures, it can be provided that the fastening arrangement, or each fastening bracket of the fastening arrangement, is provided with at least one radially protruding connection tab, preferably with an upper and a lateral connection tab, which can each be connected to an associated support bracket anchored on the building side respectively are. This results in a simple pre-assembly of the fastening arrangement, wherein the connection between the fastening arrangement and the associated support brackets can advantageously be designed so that relative movements are possible for the purpose of tolerance compensation.

With particular advantage, each connection lug can have at least two degrees of freedom of adjustment with respect to the associated support bracket in the connected state have, expediently in the form of a lateral displaceability directed transversely to the longitudinal axis of the functional unit and a rotatability about its longitudinal axis. The fastening arrangement and thus the functional unit received on it are suspended practically floating on the support brackets so that the position of the functional unit relative to the mounting base can be varied within the given degrees of freedom, whereby unavoidable manufacturing and mounting tolerances can be compensated for. The functional unit already held in the fastening arrangement can therefore additionally be fixed in its position on the building side, for example advantageously by means of lateral guide rails protruding downward from it, which can be fixed on the building side, without internal stresses occurring.

A practical implementation of the above measures can consist in that each connection lug can be connected to the respectively assigned support bracket by means of a pin that extends through a curved elongated hole, preferably designed as a screw, with the elongated holes assigned to the mutually distant connection lugs corresponding to the spacing of the pins that extend through them Have bending radius. These measures result in the desired translational and rotational degrees of freedom in a simple manner.

To perfect the above measures, it can be provided that the locking device in its locking position and, if necessary, the locking device in its locking position has or have play in the longitudinal direction of the functional unit. This results in an additional degree of freedom of movement in the longitudinal direction of the functional unit and therefore advantageously also enables the functional unit to be adjusted axially.

A preferred embodiment of the invention is described in more detail below with reference to the drawing:

Figur 1

einen Vertikalschnitt durch einen auf einen Fenster- oder Türrahmen aufgesetzten Aufsatzkasten mit hierin aufgenommener Funktionseinheit einer als Textilscreen ausgebildeten Gebäudeöffnungsverschattungsvorrichtung,

Figur 2

einen zur Befestigungsanordnung der Anordnung gemäß Figur 1 gehörenden Befestigungsbügel mit der Funktionseinheit der Gebäudeöffnungsverschattungsvorrichtung im Verlauf des Einbringens in die Befestigungsanordnung,

Figur 3

eine perspektivische Ansicht der Anordnung gemäß Figur 2 mit in ihre Endstellung gebrachter Funktionseinheit,

Figur 4

die Anordnung gemäß Figur 3 mit doppelt gegen Absturz gesicherter Funktionseinheit und

Figur 5

ein Beispiel für die der Befestigungsanordnung zugeordneten Maßnahmen zum Toleranzausgleich in Figur 1 entsprechender Darstellung.

In the drawing show:

Figure 1

a vertical section through an attachment box placed on a window or door frame with a functional unit of a building opening shading device designed as a textile screen,

Figure 2

one for fastening arrangement according to the arrangement Figure 1 The associated mounting bracket with the functional unit of the building opening shading device in the course of being introduced into the mounting arrangement,

Figure 3

a perspective view of the arrangement according to Figure 2 with the functional unit brought into its end position,

Figure 4

the arrangement according to Figure 3 with function unit doubly secured against falling and

Figure 5

an example of the tolerance compensation measures assigned to the fastening arrangement in Figure 1 corresponding representation.

In Fig. 1 a window or door frame 1 assigned to a building opening is indicated, onto which a top box 2, which closes the building opening at the top and has an interior 3 open at the bottom, is placed. A shading device is assigned to the aforementioned building opening. This contains a functional unit 4 housed in the interior 3 of the top box 2. This has a base part 5 that functions as an assembly pad and from the lateral ends of which guide rails 6 protrude downwards and which can be fixed in the area of the reveal of the building opening on the building side, as indicated by a fastening screw 7 is. The top box 2 accordingly forms a shell that can be built into a building, in which the downward open interior 3, the functional unit 4 of the intended building opening shading device is placed. The base part 5 can be a space delimiting a space, for example a box-shaped housing or housing or the like with a profile-like cross-section that is open at the top or bottom. The base part 5 can be adapted to different purposes and can be designed, for example, as a head strip that is open at the top or as a housing or the like provided with a lower outlet slot.

The top box 2 can be designed as a foam block into which a shell 8 containing the interior space 3 can be molded. Other designs would of course also be conceivable, for example as a brick or concrete molding or as a box composed of plastic panels or the like. The downwardly open top box 2 is in the manner of a so-called front-mounted box at the lower end of its outer, d. H. to the outside of the building with a connecting to the shell 8, by the thickness of an externally attachable plaster outwardly projecting plaster strip 9 and at the lower end of its inner leg with a connecting profile 10 adjoining the shell 8 for connection to the upper leg of the associated window or door frame 1 provided.

The above-mentioned building opening shading device can, for example, be designed as a textile screen. The functional unit 4 accordingly contains a horizontal winding shaft, not shown here, which is supported on the base part 5 and which can be driven in the direction of rotation and onto which a web of material, also not shown here, can be wound up or unwound from it, which is also used as a shading element A box provided with a lower outlet slot and forming the base part 5 runs out and is guided with its lateral marginal edges in an associated guide groove of the lateral guide rails 6. Instead of a textile screen, another building opening shading device can of course also be provided, for example a roller shutter and / or fly screen or a venetian blind or the like, with a functional unit 4 with an interior 3 in each case of the top box 2 fixable base part 5 is provided.

The box forming the base part 5 here can, as from the Fig. 3 and 4th clearly shows, have a peripheral panel 11 which is closed at the lateral ends by panel caps 12 attached thereto. The peripheral panel 11 bridging the two panel caps 12 can be designed in one piece or in several parts, with the individual parts being able to be produced as sections of an extruded profile made of light metal. The diaphragm caps 12 can be produced as cast moldings consisting of a light metal. The aperture caps 12 can with fastening means, for example with in the Figs. 1 to 4 indicated screw bosses 12a or the like for attaching support plates etc. associated with the mentioned winding shaft or its drive motor.

For the building-side fixation of the box of the functional unit 4, here forming the base part 5, here in the interior 3 of the top-mounted box 2, a fastening arrangement is provided that is preassembled in the interior 3, which in the example shown includes two the end areas of the box forming the base part 5 here, i.e. the cover caps 12 associated, advantageously downwardly open, U-shaped mounting bracket 13, into which the functional unit 4 with its base part 5 can be inserted from below during assembly and on which it can be fixed in the inserted state so that its own weight is on the elements of the Fastening arrangement is transferred and it is secured in at least one spatial direction, ie at least against falling. Of course, more or fewer fastening brackets 13 can also be provided to form the fastening arrangement. The insertion height of the functional unit 4 in the fastening arrangement formed here by the fastening bracket 13 is limited in such a way that the fastening bracket 13 between its upper side and the upper boundary of the fastening arrangement, i.e. in the example shown between the upper side of the base part 5 of the functional unit 4 and the upper bracket yoke on off Fig. 1 visible distance remains, so that emerging from the functional unit 4 upwards Elements such as cables etc. are not jammed. The shape of the fastening bracket 13 and the box forming the base part 5 is not limited to the present example, but can be designed as desired. It only needs to be ensured that the functional unit 4, here the box forming the base part 5, can be introduced into the intended fastening arrangement, here in the form of the fastening bracket 13, the type of introduction not being limited to the above-mentioned insertion from below. Other types such as swiveling in or the like would also be conceivable. The term inserting therefore stands for any type of introduction, ie bringing into engagement.

The containing the free end of a mounting bracket 13, here to the outside, d. H. to the outside of the building of a U-shaped mounting bracket 13 of the mounting arrangement is designed as a spring leg 14, which is arranged here so that it is deflected outward by the inserted or inserted functional unit 4, here by the box forming the base part 5 of the functional unit 4 and accordingly rests against the associated box wall with bias. The spring leg 14 is inclined inwards from the connection area to the upper yoke so that the clear distance of the lower leg end is smaller than the width of the functional unit 4 or the box forming the base part 5, thus creating a reliable, resilient contact with the lower leg area on the box. The spring clip 13 is thereby inserted into the fastening clip arrangement, i. H. inserted functional unit 4 or its box-shaped base part 5 slightly expanded. The lower end of the spring leg 14 is bent obliquely outward to form an inlet guide 15, on which the box etc., when it is inserted into the fastening bracket arrangement of the fastening arrangement, comes up with its facing upper corner, whereby the spring leg 14 is deflected outward and the fastening bracket 13 is expanded .

The functional unit 4, that is to say the box which here forms its base part, can here by hand from below into the fastening arrangement, here into the fastening bracket 13 are introduced, pushed in here and in the introduced state is blocked in the vertical direction by a locking device that comes into action automatically and preferably additionally by a manually operable locking device with respect to the fastening arrangement and secured against falling. To assemble the functional unit 4 or the box forming its base part 5, no second assistant and no tools are required.

To form a first locking device that automatically comes into operation, as in the example shown, the elements in the form of the fastening arrangement that can be brought into engagement and can be pushed into one another here, or here its fastening bracket 13 and the functional unit 4 or here its base part 5, as above mentioned can be designed as a box etc., on the one hand in each case at least one preferably resilient locking lug 16, preferably having a horizontal locking edge, and on the other hand at least one preferably horizontal supporting edge assigned to this, under which the locking lug 16 when reaching the desired end position, i.e. H. here the desired insertion height of the functional unit 4 or its base part 5, preferably automatically snaps in due to its spring action. The resilient locking lug 16 can advantageously consist of spring steel to promote a reliable locking effect. However, it would also be conceivable, instead of a preferably resilient locking lug, to provide other locking means such as an automatically engaging locking pawl, etc., which can be pivoted outside the center of gravity and accordingly falls into its locking position by gravity, to form the aforementioned locking device.

To perfect the support of the functional unit already held by the locking device described above, here in the form of a resilient locking lug arrangement, a manually operated locking device with a movable locking element provided on the one hand can be used, as in the example shown and a stationary bolt receptacle assigned to it, which is provided on the other hand, can be provided. In the example shown, to form the locking device, on the one hand at least one locking bolt 17 having a horizontal locking edge and, on the other hand, a respective retraction recess 18 assigned to it and having a horizontal locking edge, into which the locking bolt 17 can be manually retracted. The locking bolt 17 can be moved beyond the delimitation of the element receiving it facing the retraction recess 18.

When introducing, d. H. Here the box, which is the base part 5 of the functional unit 4, is inserted into the fastening arrangement, here in the form of the fastening bracket 13, the functional unit 4 is first automatically fixed by each locking lug 16 that automatically snaps under the associated support edge due to its spring action, whereby a first locking results and thus the weight of the functional unit 4 is transferred to the fastening arrangement and the functional unit 4 is secured against falling, d. H. is fixed at least in the direction of gravity in space. The final fixation can then be accomplished by manual actuation of each locking bolt 17. In simple cases it would be conceivable to provide only the first provisional locking or fixing by means of at least one resilient locking lug 16 and to dispense with the fixing by means of at least one manually operated locking bolt 17 etc.

Advantageously, to secure the functional unit 4 or its base part 5, two resilient locking lugs 16 assigned to the end areas of the functional unit 4 or its base part 5 and support edges assigned to them and, if necessary, two locking bars 17 assigned to the mentioned end areas and drive-in recesses 18 assigned to them can be provided. In the present exemplary embodiment, the two resilient locking lugs 16 are assigned to the two fastening brackets 13, which here form the fastening arrangement, the associated support edge being provided in the area of the box forming the base part 5. In contrast, the two locking bolts 17 are on the box side and the entry recesses 18 assigned to them are provided in the area of the two fastening brackets 13 provided. Advantageously, each end area of the box forming the base part 5 of the functional unit 4 is assigned a resilient locking lug 16 with an assigned support edge and a locking bolt 17 with an assigned drive-in recess 18.

The locking lug 16 is in the example shown, as best from Fig. 2 can be seen, arranged at the end of an associated leg spring 19, which is attached to the associated mounting bracket 13 with its end remote from the nose. The downward-facing delimitation of the locking lug 16 is designed as an inclined contact surface 20 which, when the box functioning here as the base part 5 is inserted into the mounting bracket arrangement, comes to rest on the facing upper box corner, as a result of which the leg spring 19 is deflected backwards against its spring force and is pretensioned in the process. as in Fig. 2 is indicated. The leg spring 19 is located to ensure a clean contact of the rear-facing back of the box forming the base part 5 of the functional unit 4 on the adjacent rear leg of the associated mounting bracket 13 on the outside of the mounting bracket 13. This is associated with an associated, preferably from the Fig. 3 and 4th A recognizable passage window 21 is provided, through which the assigned locking lug 16 can protrude inward, ie into the inner region of the fastening bracket 13 assigned to the functional unit 4.

The shell-side panel 11 of the box functioning here as the base part 5 of the functional unit 4 is like that Fig. 3 and 4th also show, open at the back, whereby the end of the panel 11 there can form a horizontal support edge 22 that extends over the entire panel length, under which, several, ie here the two locking lugs 16 present under the action of the restoring force of the pre-tensioned leg spring 19 designed as a leaf spring can snap into place. However, other designs of the locking lug 16 and the associated support edge 22 would also be conceivable. It only has to be ensured that the locking lug 16 automatically locks the functional unit 4 in the fastening arrangement in a reliable manner can be done.

The two locking bars 17 associated with the end regions of the box forming the base part 5 of the functional unit 4 here are, in the example shown, like those Fig. 3 and 4th further show, mounted on the respective diaphragm cap 12, expediently on its edge flange, the fastening brackets 13 assigned to the end regions of the box having the respectively assigned drive-in recess 18. This is designed as a cut-out rectangular window that is open on the entry side and has a horizontal locking edge 23. This is formed here by the lower limit of the entry recess 18.

The locking bolt 17 is designed here as a pivot lever that is rotatable about a vertical axis on the associated aperture cap 12, here its edge flange, which can be brought into engagement with an end region that can be moved beyond the limitation of the aperture cap 12 facing the fastening bracket 13 and into the recess 18 the locking edge 23 has facing, horizontal locking edge 24, which is formed here by its underside. The locking bolt 17, which in the example shown is designed as a pivot lever which can be rotated about a vertical axis, can, as shown, be designed as an angle lever to achieve a compact arrangement. Other types and forms of locking would also be conceivable. For example, sliding latches or brackets of the type provided in the prior art described at the beginning or the like could also be provided.

In the representation according to Fig. 3 the locking bolt 17 is in the non-locking, open state outside the associated drive-in recess 18. In the illustration according to FIG Fig. 4 the locking bolt 17 is retracted into the associated drive-in recess 18, the locking edges 23, 24 being in mutual engagement. In order to prevent the locking bolt 17 from automatically loosening, an in Fig. 4 Indicated locking bar or knob 25 be provided, over which the locking bolt 17 must go and which the locking bolt 17 in the Fig. 4 underlying locking position engages behind. In the example shown, the locking lugs 16 and leg spring 19 are each assigned to a mounting bracket 13 and the associated support edge 22 is assigned to the box-side panel 11 and the locking bar 17 is each assigned to a panel cap 12 and the entry recesses 18 assigned to them are each assigned to a mounting bracket 13. However, a reverse assignment would also be conceivable. It would also be possible to assign the locking lugs 16 and the entry recesses 18 to different mounting brackets 13.

The fastening arrangement can be preassembled to fix the functional unit or its base part 5 on a support on the building side. Accordingly, in the example shown, the fastening brackets 13 provided for forming the fastening arrangement can be preassembled on a building-side base, here, as already mentioned above, in the interior 3 of the top box 2. For this purpose, on the building-side base, in the example shown on wall areas of the interior 3, such as Fig. 1 can be seen, anchored to the fastening arrangement, here the fastening brackets 13 associated with them, to which the fastening arrangement, here in the form of the respectively associated fastening bracket 13, can be connected via associated, radially protruding connection lugs 28, 29. In the example shown, an upper support bracket 26 and a side support bracket 27 are assigned to each fastening bracket 13. The fastening brackets 13 forming the fastening device here accordingly each have an upper connection tab 28 and a side connection tab 29, which can each be connected to the associated bracket 26 or 27 via a pin, preferably designed as a screw 30. In the example shown, the connection lugs 28, 29 are arranged transversely, preferably at right angles to the longitudinal direction of the box forming the base part 5 of the functional unit 4.

The screw 30 engages Fig. 5 according to a special inventive idea through an associated elongated hole 31, preferably provided on the connection lug side, or into this one, whereby a pin and Slot connection is formed. The elongated holes 31 are advantageously designed as curved elongated holes, a radius corresponding to the spacing of the co-operating pins formed by the screws 30 being provided. The elongated hole 31 of the upper connecting lug 28 is curved concavely downward and the elongated hole 31 of the lateral connecting lug 29 is curved concave upward. In this way, the functional unit 4 held and fixed in the fastening arrangement without play, here in the fastening brackets 13 forming it, here the box functioning as the base part 5 of the functional unit 4, receives two in Fig. 5 Degrees of freedom a, b indicated by arrows, which are present in the intended direction of the connection lugs 28 as a translational degree of freedom a directed transversely to the longitudinal axis of the box and as a rotational degree of freedom b with respect to the longitudinal axis of the box. With a change in the direction of the connection lugs 28, 29 with respect to the longitudinal direction of the functional unit 4, other directions of the degrees of freedom can also be achieved. The screws 30 are only tightened to the extent that the desired mutual mobility is still possible. According to the further concept of the invention, this means that the functional unit 4 received in the mounting brackets 13 can still move accordingly together with the mounting arrangement receiving it to compensate for manufacturing and assembly tolerances before the final, building-side fixing.

To achieve a third degree of freedom of the functional unit 4, here the box forming the base part 5 in the longitudinal direction of the box, it can be provided that each locking lug 16 and possibly each locking bolt 17 has play in the longitudinal direction of the box with respect to the associated support edge 22 or associated entry recess 18. These measures ensure that the functional unit 4, which is movably arranged via the fastening arrangement on a building-side base, here in the interior 3 of the top box 2, can also be axially displaced with respect to the fastening arrangement.

As a result of the given degrees of freedom it is achieved that the functional unit 4 or the box of the functional unit 4, here forming the base part 5 of the functional unit 4, can still move when it is finally fixed on the building side by means of suitable fixing means, e.g. and assembly tolerances are compensated and a stress-free arrangement is guaranteed.

Claims (15)

System for fastening a functional unit (4) of a building opening shading device in a fastening arrangement that can be preassembled on the building side, the functional unit (4) being insertable into the fastening arrangement and being able to be fixed to it in the inserted state, characterized in that the elements which can be brought into engagement with one another in the form of the fastening arrangement and the Functional unit (4) is assigned at least one locking device which, when the functional unit (4) is inserted into the fastening arrangement, automatically comes into its blocking position and at least transfers the dead weight of the functional unit (4) to the fastening arrangement as well as the position of the functional unit (4) in at least defines a spatial direction. System according to Claim 1, characterized in that the locking device has at least one, preferably resilient locking nose (16) provided on each of the elements that can be brought into one another, and on the other element a supporting edge (22) assigned to it, which in the locking position of the locking lug (16) is undercut. System according to one of the preceding claims, characterized in that the fastening arrangement is designed as a fastening bracket arrangement, which preferably has two fastening brackets (13) assigned to the end areas of the functional unit (4) and that the locking device is assigned to the area of the fastening brackets (13). System according to claim 3, characterized in that the functional unit (4) has a base part (5) which preferably has a profile-like cross-section and can be introduced into the fastening arrangement, which is preferably at its ends with lateral cover caps (12) bridged by a peripheral cover (11). is provided, whereby a resilient locking lug (16) is assigned to each of the fastening brackets (13) assigned to the end regions of the functional unit (4) and the base part (5) is assigned in the area of its panel (11) has a continuous support edge (22) for both locking lugs (16). System according to one of the preceding claims 3 or 4, characterized in that each locking nose (16) is arranged at the end of an associated leg spring (19) which is attached with its end remote from the nose on the associated fastening bracket (13), the leg spring (19) is preferably provided on the side of the fastening bracket (13) facing away from the functional unit (4), which has a passage window (21) assigned to the locking lug (16), through which the locking lug (16) protrudes inward, which is preferably a downward-facing one , has inclined contact surface (20). System according to one of the preceding claims 3-5, characterized in that the side leg of each fastening bracket (13) facing away from the locking device, preferably pointing towards the outside of the building, is designed as a spring leg (14) inclined inwards, the free end of which is bent outwards at an angle Inlet guide (15) is formed and which can be deflected outwards from the space delimitation (5) which runs against it. System according to one of the preceding claims, characterized in that the elements that can be brought into engagement with one another can also be locked against one another by means of a manually operated locking device, with at least one locking bolt (17) having a locking edge (24) and one on each of the elements that can be inserted into one another each other is provided with a retraction recess (18) associated therewith and having a limiting edge facing the locking edge (24) on the bolt side, and wherein the locking bolt (17) can be moved with one end region beyond the boundary of the element receiving it and facing the associated retraction recess (18) can be brought into engagement in the associated drive-in recess (18) of the other element. System according to Claim 7, characterized in that a locking bolt (17) is mounted on each diaphragm cap (12) and each fastening bracket (13) has an associated drive-in recess (18), with each locking bolt (17) preferably being rotatable about a vertical axis , is preferably designed as a pivot lever designed as an angle lever and in the area of the entry recess (18) assigned to it, a latching edge (25) assigned to the locking bolt (17) is provided. System according to one of the preceding claims, characterized in that the locking device and an optionally provided locking device can be positioned vertically so that the top of the functional unit (4) in its inserted end position is spaced from the upper limit of the fastening device. System according to one of the preceding claims, characterized in that the fastening arrangement, preferably each fastening bracket (13) of the fastening arrangement, is provided with at least one radially protruding connection tab (28, 29), preferably an upper connection tab (28) and a lateral connection tab (29) which can be connected to an associated support bracket (26, 27) anchored on the building side. System according to claim 10, characterized in that each connection lug (28, 29) has at least two degrees of freedom in the connected state with respect to the associated support bracket (26, 27) and that the functional unit (4) is secured by fixing means, preferably by means of its base part (5) downwardly protruding, lateral guide rails (6), which can be fixed on the building side, can be fixed in their position. System according to one of Claims 10 and 11, characterized in that each connection lug (28, 29) can be connected to the respectively assigned support bracket (26, 27) by means of a pin which extends through a curved elongated hole (31), preferably designed as a screw (30) , where the the elongated holes (31) associated with the mutually distant connection lugs (28, 29) preferably have a bending radius corresponding to the distance between the pins reaching through them. System according to one of the preceding claims, characterized in that the locking device in its locking position and an optionally provided locking device in its locking position has or have play in the direction of the longitudinal axis of the functional unit (4). System according to one of the preceding claims, characterized in that the fastening arrangement assigned to the functional unit (4) can be preassembled in the interior (3) of a shell which can be installed on the building side and which is a preferably foamed attachment box (5) that can be placed on a window or door frame (1). is formed, which on the underside of its side areas flanking the interior space (3) has on the one hand a connection profile (10) for connection to the window or door frame (1) and on the other hand an outwardly protruding plaster strip (9). System according to one of the preceding claims, characterized in that the functional unit (4) is assigned to a textile screen or a roller shutter or a drive unit of a venetian blind etc.

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