EP1985792B1 - Belt coiler for a roller shutter - Google Patents

Description

The invention relates to a Gurtwickler for a darkening device such as a shutter or the like. according to the preamble of claim 1.

The currently in question, motor-operated Gurtwickler is widely used for retrofitting, ie for the exchange manually operated Gurtwickler. Here, in a first variant, the installation of the motor-operated Gurtwicklers provided in an existing masonry recess. Such a flush mounting a Gurtwicklers shows, for example, the DE 32 14 235 C3 ,

But there are also Gurtwickler known which can be mounted in surface mounting on a mounting surface of a masonry section. Here is the attachment of Gurtwicklers on one of its flat sides ( DE 20 2004 016 175 U1 ) and a pivot bearing ( DE 299 21 653 U1 ) known.

The above, via a pivot bearing mounted on a mounting surface of a masonry section Gurtwickler ( DE 299 21 653 U1 ), from which the invention proceeds, is or the like with a housing and with a housing located in the drive assembly for motor winding a webbing. fitted. The webbing runs over a Gurtbandeinlauf in the housing and is wound there by a motor-driven reel. The housing has a substantially flat shape and is composed of two flat sides, an upper side, a lower side, a front side and a rear side.

The problem with the known belt winder is the fact that it can only be used as a swivel winder. The user must have already decided when purchasing the Gurtwicklers, whether a surface mounting or flush mounting should be done. This can be particularly cumbersome if an entire house to be retrofitted with Gurtwicklern, with some Gurtwickler in flush mounting and some Gurtwickler in surface mounting to be mounted. Not infrequently, the user will be forced to exchange one or more Gurtwickler.

Weilere Gurtwickler are out EP 0924379 A2 . EP 0513794 A2 and from EP 1700996 A2 known.

The invention is based on the problem of designing the known Gurtwickler and further develop, that its scope is increased.

The above problem is solved in a Gurtwickler according to the preamble of claim 1 by the features of the characterizing part of claim 1.

It is essential to consider that one and the same Gurtwickler with the same housing and a suitable design both in flush mounting and surface mounting is mounted. For this purpose, the mounting arrangement is equipped with flush-mounted fasteners on the one hand and with surface-mounted fasteners on the other hand.

Ultimately, a Gurtwickler, which was originally designed exclusively for surface mounting, a universal Gurtwickler for surface mounting and flush mounting.

The preferred embodiments according to claims 2 and 3 relate to the configuration of the surface-mounting means.

The further preferred embodiments according to claims 4 and 5 relate to the consideration to equip the Gurtwickler with a first Gurtbandeinlauf and a second Gurtbandeinlauf. It is envisaged that the first Gurtbandeinlauf comes in the flush mounting and the second Gurtbandeinlauf in the surface mounting assembly used. This can be achieved in an embodiment according to claim 4, that the webbing in the surface-mounting and flush mounting has substantially the same distance from the mounting surface of the masonry section.

A similar effect can be achieved with the likewise preferred embodiments according to claims 6 to 10. To emphasize here is the fact that the preferred embodiment with a second guide pulley, which on a Holding bracket is arranged, (claim 9), is particularly inexpensive and robust.

Further preferred embodiments relate to the arrangement of the drive components, which ultimately leads to a particularly compact design.

Fig. 1

in einer schematischen Darstellung einen erfindungsgemäßen Grurtwickler in Unterputz-Montage,

Fig. 2

den Gurtwickler gemäß Fig. 1 in Aufputz-Montage,

Fig. 3

in einer perspektivischen Darstellung den Gurtwickler gemäß Fig. 1 in Unterputz-Montage,

Fig. 4

in einer perspektivischen Darstellung den Gurtwickler gemäß Fig. 1 in Aufputz-Montage,

Fig. 5

in einer schematischen Seitenansicht den Gurtwickler gemäß Fig. 1 ohne Gehäuse,

Fig. 6

in einer perspektivischen Darstellung einen weiteren erfindungsgemäßen Gurtwickler ohne Gehäuse schräg von vorne (links) und schräg von hinten (rechts),

Fig. 7

in einer perspektivischen Darstellung den in Fig. 6 dargestellten Gurtwickler mit Gehäuse in Aufputz-Montage,

Fig. 8

in einer perspektivischen Darstellung den Gurtwickler gemäß Fig. 6 mit Gehäuse in Unterputz-Montage,

Fig. 9

in einer perspektivischen Detaildarstellung den Gurtwickler gemäß Fig. 6 mit Gehäuse während der Befestigung des Montagerahmens am Gurtwickler im übrigen,

Fig. 10

eine weitere perspektivische Detaildarstellung gemäß Fig. 9,

Fig. 11

eine weitere perspektivische Detaildarstellung gemäß Fig. 9,

Fig. 12

in einer perspektivischen Detaildarstellung einen weiteren erfindungsgemäßen Gurtwickler in Aütputz-Montage und

Fig. 13

in einer schematischen Seitenansicht einen weiteren erfindungsgemäßen Gurtwickler.

In the following the invention will be explained in more detail with reference to a drawing showing only one embodiment. In the drawing

Fig. 1

in a schematic representation of an inventive Grurtwickler flush-mounted,

Fig. 2

according to the Gurtwickler Fig. 1 in surface mounting,

Fig. 3

in a perspective view of the Gurtwickler according to Fig. 1 in flush mounting,

Fig. 4

in a perspective view of the Gurtwickler according to Fig. 1 in surface mounting,

Fig. 5

in a schematic side view of the Gurtwickler according to Fig. 1 without housing,

Fig. 6

in a perspective view of another Gurtwickler invention without housing obliquely from the front (left) and obliquely from the rear (right),

Fig. 7

in a perspective view the in Fig. 6 shown Gurtwickler with housing in a surface-mounted,

Fig. 8

in a perspective view of the Gurtwickler according to Fig. 6 with housing flush-mounted,

Fig. 9

in a perspective detail of the Gurtwickler according Fig. 6 with housing during the attachment of the mounting frame on the Gurtwickler otherwise,

Fig. 10

a further perspective detail according to Fig. 9 .

Fig. 11

a further perspective detail according to Fig. 9 .

Fig. 12

in a detailed perspective view of another Gurtwickler invention in Aütputz assembly and

Fig. 13

in a schematic side view of another Gurtwickler invention.

The Gurtwickler shown in the drawing is provided for the motorized operation of a darkening device such as a shutter or the like. The Gurtwickler is o.dgl equipped with a housing 1 and with a located in the housing 1 drive assembly 2 for motor winding a webbing 3, and the like, and with a Gurtbandeinlauf 4 for inserting the webbing 3 or the like. Instead of the webbing 3 can here also a drive cable, a drive chain or the like. Find application.

The housing 1 has a substantially flat shape with two flat sides 5, 6, a top 7, a bottom 8, an end face 9 and a back 10. In the above designation of the sides of the Gurtwicklers has always been based on the installed state. With "front side" is the side facing away from the respective masonry section and "back" is the masonry section facing side. The other names are self-explanatory. It may be noted that a "page" in the above sense must not be designed plan, but elevations, paragraphs or the like. can have.

If in the following from "flat side", "top", "bottom", "front" or "back" is mentioned, so are always the corresponding pages 5, 6, 7, 8, 9, 10 of the Gurtwicklers meant.

The drive assembly 2 of the Gurtwicklers has a drive motor 11, a drive 12 downstream of the drive gear 12 and a gear 12 downstream of the reel 13 for the webbing 3 or the like. on. The arrangement of the drive motor 11, gear 12 and reel 13 can be the representation in Fig. 5 remove.

The belt winder furthermore has a fastening arrangement 14 for fastening the belt winder in the mounted state. By "attachment" the attachment of Gurtwicklers on the respective masonry section 16 is meant.

It is essential that the Gurtwickler with the same housing 1 both in-wall mounting ( Fig. 1 ) in a masonry recess 15 of a masonry section 16 as well as in surface mounting ( Fig. 2 ) is mountable on a mounting surface 17 of a masonry section 16. Thus, the proposed Gurtwickler is universally applicable. For this universal applicability, the mounting assembly 14 is equipped with flush mounting means 18 and surface mounting means 19, which inter alia in Fig. 5 can be seen.

It should be noted that a so-called mounting surface 17 of the masonry section 16 exists both in the flush mounting and in the surface mounting. With "mounting surface 17" is here always meant the area at which an attachment of the Gurtwicklers screws or the like. is possible.

In the flush mounting corresponding to the flush mounting means 18 and in the surface-mounted installation are correspondingly the surface mounting means 19 is used.

In the flush mounting the only accessible side of the Gurtwicklers the front page 9, so that it is preferably provided that the end face 9 has a control surface for the user-side triggering Gurtwicklerfunktionen.

The flush-mounted fastening means 18 comprise in the region of the end face 9 a mechanical interface 20, by means of which the belt winder can be fastened flush-mounted in or on the masonry recess 15. By "mechanical interface" is meant that the Gurtwickler, in particular the housing 1 of Gurtwicklers, any kind of molding or dg1. has, which allows attachment of Gurtwicklers. This is also a mounting surface, a paragraph or the like. meant. Implementation possibilities for this are given below.

The statement "in the region of the end face 9" means in the present case that the mechanical interface 20 is located in any case in the vicinity of the end face 9. It is not necessary that the mechanical interface 20 is arranged directly on the front side 9. This can be the representation in Fig. 2 remove.

At the in Fig. 1 1, the mechanical interface 20 is designed as a frame holder for a mounting frame 21 corresponding to the frame holder. It is such that in the flush mounting of the mounting frame 21 is fixed to the masonry section 16 and is rigidly fixed by means of Rahumenhalterung with the Gurtwickler in the rest.

The mounting frame 21 extends substantially parallel to the end face 9 of the Gurtwicklers, wherein the mounting frame 21 here and preferably completely around the end face 9 runs around. It can be the representation in Fig. 1 It can be seen that the mounting frame 21 is substantially flush with the end face 9 here.

It can be the representation in Fig. 1 Furthermore, it can be seen that the mounting frame 21 protrudes in the assembled state up and down and also laterally beyond the housing 1 of the Gurtwicklers. It is preferably provided that 21 mounting holes 22 are provided in the protruding part of the mounting frame. The mounting holes 22 are arranged for reasons of stability in the upper and lower regions of the mounting frame 21 so that the lateral projection of the mounting frame 21 can be basically dispensed with. In most applications, the lateral supernatant will be provided for optical reasons.

A particularly simple attachment of the mounting frame 21 on Gurtwickler the rest results from the fact that the frame holder provides a snap and clamp attachment for the mounting frame 21. It can be the representation in Fig. 2 It can be seen that the frame holder has recesses 23, can engage in the corresponding counter-elements on the mounting frame 21. There are other ways to realize the above snap or clamp mounting for the mounting frame 21.

A synopsis of Fig. 1 and 2 shows that the mounting frame 21 for the surface mounting ( Fig. 2 ) is detachable from the frame holder. This is particularly advantageous insofar as a mounting frame is not necessary for surface mounting and may even be disadvantageous for the visual impression of the Gurtwicklers.

In the illustrated preferred embodiment, the surface-mounted fastening means 19 in the region of the rear side 10 comprise a mechanical interface 24, by means of which the belt winder can be fastened in a surface-mounted manner on the mounting surface 17 of the masonry section 16. With regard to the broad meaning of the term "mechanical interface 24" may be made to the above statements. Furthermore, the term "in the area of the rear side 10" also merely means that the surface-mounted fastening means 19 should be arranged in the vicinity of the rear side 10.

In a preferred embodiment, it is such that the surface mounting means 19 in the region of the back 10 include a bearing as a mechanical interface 24 for a counter 24 corresponding to the bearing 24. In this case, the abutment 25 is fixed in the surface-mounted mounting on the masonry section 16 and is engaged with the bearing 24 in engagement. In the illustrated preferred embodiment, the bearing 24 and the anvil 25 form a pivot bearing for the Gurtwickler on the masonry section 16 in the surface mounting assembly. In this case, the pivot axis of the pivot bearing preferably extends in the vertical direction.

It can be the representation in Fig. 2 It can be seen that the bearing 24 has upper and lower bearing elements 26, which are in the surface mounting with associated abutment elements 27 of the abutment 25 in engagement. In principle, it can also be provided that the bearing 24 has only one bearing element 26, which is correspondingly associated with only one counter-bearing element 27.

The representation in Fig. 5 On the other hand, the configuration of the bearing element 26 on the one hand and the abutment element 27 on the other can be taken particularly well. Here it is such that the bearing element 26 is a bearing bore and the counter bearing element 27 is a bearing pin corresponding to the bearing pin. In principle, however, the arrangement can also be provided the other way round, so that the Bearing member 26 is a bearing pin and the abutment member 27 is a bearing pin corresponding to the bearing bore.

Here, the bearing has a bearing element 26 on the top side 7 of the belt winder and a bearing element 26 on the underside 8 of the belt winder. This has proved to be a particularly robust arrangement.

The anvil 25 is preferably associated exclusively with the surface mounting means 19, and can be removed from the bearing 24 for flush mounting. Accordingly, it is advantageous to the coupling between the bearing element 26 and abutment element 27 as a snap connection or the like. perform.

Accordingly, it can also be provided that the mounting frame 21 is assigned exclusively to the flush mounting means 18. In principle, however, it can also be provided that the mounting frame 21 or the like in the flush mounting as explained above with the frame bracket and in the surface mounting with the bearing 24. engages and then forms the anvil 25 to the bearing 24.

The Gurtwickler shown has yet another feature that is particularly advantageous for ease of use. Here, two Gurtbandeinläufe 4a, 4b are provided, wherein the webbing 3 in the flush mounting ( Fig. 1 ) runs into the Gurtwickler on the first belt inlet 4a and that the webbing 3 in the surface mounting on the second Gurtbandeinlauf 4b enters the Gurtwickler.

The arrangement is now preferably made such that the first Gurtbandeinlauf 4a is located in the region of the end face 9 and that the second Gurtbandeinlauf 4b located in the back 10. The Gurtbandeinläufe 4a, 4b are further preferably arranged so that the in the respective Gurtbandeinlauf 4a, 4b incoming webbing 3 in the surface-mounting and flush mounting substantially the same distance from the mounting surface 17 of the masonry section 16, ie in essentially parallel to the masonry section 16.

In a particularly preferred embodiment, the first Gurtbandeinlauf 4a on the end face 9 and / or the top 7 and the second Gurtbandeinlauf 4b is arranged at the top.

In Fig. 5 It is shown that in the housing 1 the first Gurtbandeinlauf 4a a first guide roller 28 and the second Gurtbandeinlauf 4b, a second guide roller 29 is assigned. It is further preferably so that when mounted in flush mounting Gurtwickler the webbing 3 runs from the first Gurtbandeinlauf 4a on the first guide roller 28 to the reel 13. Further, it is preferably so that when mounted in a surface mounting Gurtwickler the webbing 3 extends from the second Gurtbandeinlauf 4b on the second guide roller 29 and the first guide roller 28 to the reel 13. Again, this is basically the representation in Fig. 5 refer to. There are basically other variants of the leadership of the webbing 3 conceivable.

Ultimately, it is so that the user must pay attention during assembly that the correct Gurtbandeinlauf 4a, 4b is used. In principle, it is also possible to provide only a single Gurtbandeinlauf 4, which then corresponds to the first Gurtbandeinlauf 4a in the region of the front page 9. In this case, it is accepted that the webbing 3 is not parallel to the masonry section 16 in any case during surface mounting.

A to the masonry section 16 in the above manner parallel webbing 3 can also be realized by a suitable arrangement of pulleys, without it depends on a particular embodiment of Gurtbandeinläufen 4a, 4b. This can be the representations in the Fig. 6 to 11 remove.

The in the Fig. 6 to 11 illustrated and so far preferred embodiment, with the exception of the webbing guide the same basic structure as that in the Fig. 1 to 5 illustrated embodiment. In that regard, reference may be made to the above explanations.

In the in the Fig. 6 to 11 illustrated embodiment, a first guide roller 28 is again provided for the webbing 3, wherein mounted in flush mounting Gurtwickler ( Fig. 8 ) the webbing 3 extends over the first guide roller 28 to the reel 13. It is further provided a second guide roller 29, wherein when belt winder mounted in a surface-mounted manner, the webbing 3 extends first over the second deflection roller 29 and here and preferably subsequently over the first deflection roller 28 to the reel 13 ( Fig. 7 ). In this case, the configuration of the second deflection roller 29 is of particular importance, as will be explained below.

The first deflection roller 28 is located again in the region of the end face 9, wherein the second deflection roller 29 is located in the region of the rear side 10. A synopsis of Fig. 6 . 7 and 8th shows that the two pulleys 28, 29 are arranged so that in the surface-mounting ( Fig. 6 . 7 ) extending over the second guide roller 29 and the first guide roller 28 extending webbing 3 and in the flush mounting on the first guide roller 28 extending webbing 3 in a region above the Gurtwicklers substantially parallel to the masonry section 16. It is in principle conceivable that the webbing 3 extends during surface mounting on the second guide roller 29 to the reel 13, without having to run over the first guide roller 28.

It can be a synopsis of Fig. 7 and 8th can be seen that the first guide roller 28, a first Gurtbandeinlauf 4a and the second guide roller 29, a second Gurtbandeinlauf 4b is assigned. It is interesting here that in the surface-mounting the webbing 3 first passes over the second guide roller 29 and only then enters via the second Gurtbandeinlauf 4b in the housing 1.

Both Gurtbandeinläufe 4a, 4b are here and preferably in the front region of Gurtwicklers. In principle, it is also conceivable that only a single Gurtbandeinlauf 4 is provided, which is used in all types of installation.

It is essential that the first deflection roller 28 is arranged on the end face 9 and / or the upper side 7 and that the second guide roller 29 at least in the surface mounting in the region of the top 7, preferably above the top 7, is arranged. In the illustrated and so far preferred embodiment, the second guide roller 29 is even arranged outside of the housing 1.

The second deflection roller 29 is preferably arranged on a carrier 32. For the embodiment of the carrier 32, a number of variants are conceivable. Preferably, the carrier 32 is designed in the manner of a retaining clip, wherein the headband at one end carries the guide roller 29 and the other end is preferably pivotally attached to the Gurtwickler in the rest. The pivot axis 33 of the retaining clip is advantageously aligned parallel to the axis of rotation of the second deflection roller 29. The retaining clip has a housing 32a which is open towards one side and two legs 32b projecting from the housing 32a and which are connected to one another via the pivot axis 33 of the retaining clip. This can be the representation in Fig. 6 remove.

It can be the representation in Fig. 6 further learn that the second guide roller 29 for the surface mounting in a with in Fig. 6 shown by solid line operating position can be brought and then arranged above the top 7. This is done in the illustrated embodiment by means of the carrier 32. The second guide roller 29 can be for flush mounting by means of the carrier 32 in an in Fig. 6 bring parking position shown with dashed line. For the pivoting between the parking position and the operating position, only the rear side 10 is to be removed in the exemplary embodiment shown and preferred to that extent. In principle, it can also be provided that the second deflection roller 29 is preferably removable, including the carrier 32 for flush mounting of the Gurtwickler otherwise.

Is particularly advantageous in the in the Fig. 6 to 11 illustrated embodiment, the fact that the second deflecting roller 29 located in the parking position including the carrier 32 is at least partially disposed within the housing 1. In a particularly preferred embodiment, the second deflection roller 29 located in the parking position, including the carrier 32, is arranged completely inside the housing 1.

Is particularly advantageous in the in the Fig. 6 to 11 illustrated embodiment further the fact that the carrier 32, the second guide roller 29 so encapsulated that it is not visible in the surface-mounting and also no risk of trapping is given. Ultimately, the second guide roller 29 in the surface mounting encapsulated by the carrier 32 on the one hand and by the deflected webbing 3 close to completely.

The fact that the second guide roller 29 is adjustable by pivoting between the operating position and the park position, can be in Fig. 6 belt winder easily configured to the desired type of mounting. In principle, it is also conceivable that a sliding movement is provided instead of a pivoting movement. In principle, it is also conceivable that a carrier 32 including the second guide roller 29 on the Gurtwickler in the rest can be plugged.

Is interesting in the in the Fig. 6 to 11 illustrated embodiment, in particular the realization of Gurtbandeinläufe 4a, 4b, which are both arranged in close proximity to the first guide roller 28. In this case, the first Gurtbandeinlauf 4a is applied for the surface mounting on the inlet of the belt 3 coming from above. The second Gurtbandeinlauf 4b, however, is applied for surface mounting on the inlet of the laterally coming from the second guide pulley 29 webbing 3. This division of the Gurtbandeinlaufs 4 in a first Gurtbandeinlauf 4a and a second Gurtbandeinlauf 4b is particularly advantageous in optical terms.

The detailed representations in the Fig. 9 to 11 show a particularly preferred embodiment of the flush-mounting means 18, which include a mechanical interface 20 in the region of the end face 9 of the Gurtwicklers over which the Gurtwickler in flush mounting in or on the masonry recess 15 can be fastened. As with the in the Fig. 1 to 5 illustrated embodiment, it is also provided here that the flush mounting means 18 in the region of the end face 9 comprise a frame holder as a mechanical interface 20 and a mounting frame 21 corresponding to the frame holder. Here, in the flush mounting of the mounting frame 21 is attached to the masonry section 16 and fixed by means of the frame bracket rigidly with the Gurtwickler in the rest. Here and preferably, the frame holder provides a snap connection between the housing 1 and the mounting frame 21. For this purpose, the frame holder comprises first Fixierausnehmungen 34 in the housing 1, in which arranged on the mounting frame 21 fixing pins 35 engage. For mounting the mounting frame 21 of the mounting frame 21st about the Fixierausnehmungen 34 and fixing pins 35 in a sense initially hung ( Fig. 9 ). Subsequently, the mounting frame 21 in the in Fig. 8 shown position pivoted. In this case, a fixing rib 36 arranged on the mounting frame 21 snaps (FIG. Fig. 10 ) arranged in the housing 1 undercuts 37 ( Fig. 11 ). This type of attachment of the mounting frame 21 on the housing 1 is connected with very little installation effort.

For the retrofittability of Gurtwicklers, it is advantageous if the Gurtwickler has such dimensions that it can be used in the Mauerwerlcsausnehmung 15 a designed for manual operation Gurtwicklers. Against this background, the arrangement of the drive components of the Gurtwicklers is of particular importance.

In the illustrated and in so far preferred embodiments, the drive motor 11 and the gear 12 are arranged below the reel 13. In principle, it can also be provided that only one of these two components 11, 12 is arranged below the reel 13.

Further, it is preferably such that the drive shaft 30 of the drive motor 11 is substantially parallel to the two flat sides 5, 6, wherein the drive shaft 30 of the drive motor 11 is further preferably substantially parallel to the top 7 and / or the bottom 8.

Here and preferably, it is further so that the transmission 12 is designed as a spur gear and that the spur gears of the transmission 12 are aligned substantially perpendicular to the two flat sides 5, 6.

For control technical realization of Gurtwicklerfunktionen a control electronics is provided, wherein the control electronics in terms of a particularly compact arrangement immediately behind the end face 9, preferably located immediately behind the control panel.

The structural design of Gurtwicklers is also of particular importance in the present case. The Gurtwickler has here a chassis 31 which carries the essential force-transmitting components, wherein the housing 1 is placed on the chassis 31 or attached to the chassis 31. In particularly preferred Embodiment, at least one of the two mechanical interfaces 20, 24 arranged on the chassis 31. Further preferably, both mechanical interfaces 20, 24 are arranged on the chassis 31. This is advantageous insofar as considerable forces have to be transmitted via the mechanical interfaces 20, 24.

It should be noted that the shape of the individual pulleys 28, 29 is of particular importance for the optimal guidance of the webbing 3. In a particularly preferred embodiment, the deflection rollers 28, 29 are designed bulbous. Such deflection rollers 28, 29 have at the two ends a smaller diameter than in the middle of the respective guide roller 28, 29. This results in that the webbing 3 in a sense even centered on the respective guide roller 28, 29.

It may further be pointed to a particularly preferred embodiment, compared to the in the Fig. 6 to 11 illustrated embodiment only with respect to the realization of the carrier 32 differs ( Fig. 12 ). The carrier 32 is designed here again in the manner of a retaining clip. However, an additional transverse strut 38 is provided between the two legs 32b of the retaining clip, which forms a slot 39 for the webbing 3 with the retaining clip in the rest, in particular with the housing 32a of the retaining clip. This eliminates the fact that the running between the headband and Gurtbandeinlauf 4b webbing 3 is pressed by the user down so that an accessible gap between webbing 3 on the one hand and second guide pulley 29 on the other hand arises, which in principle the risk of pinching the user's hand would be connected. Thus, the second guide roller 29 is almost completely encapsulated in the above sense.

Fig. 13 Finally, shows a preferred embodiment, which is opposite to in the 6 to 12 illustrated embodiments distinguished only in a few aspects. It should be emphasized in this context that at the in Fig. 13 illustrated embodiment for winding Gurtbändem different Gurtbandbreiten a guide insert 40 is preferably replaceable attachable. Here and preferably, a guide shaft 41 is provided in the housing 1, in which the guide insert 40 can be inserted if necessary. With the guide insert 40 is a lateral guidance of the webbing 3 ensured during its winding on the reel 13.

In principle, it may be provided that different guide inserts 40 can be attached or inserted, depending on the strap width. Here and preferably, however, it is so that the belt winder is adjustable to only two belt widths. For the winding of the wider webbing 3 is dispensed with the attachment of the guide insert 40, since a sufficient lateral guidance through the housing 1 o. The like. Is provided. If a webbing 3 of lesser width is to be used, the guide insert 40 is attached or inserted into the guide shaft 41 and thus provides the desired lateral guidance. In such an arrangement, a single guide insert 40 is correspondingly sufficient.

Here and preferably, the guide insert 40 comes in mounted, ie imported state at a location between the first guide roller 28 and the reel 13 in guiding engagement with the webbing 3. Experiments have shown that this position of the point of engagement for the winding of the webbing 3 is optimal ,

A Gurtwickler with a guide insert, which is in leading engagement with the webbing 3 between the first guide roller 28 and the reel 13, is generally advantageous for all types of Gurtwicklern. Such Gurtwickler should therefore be claimed as such, without it matters that the Gurtwickler in the above sense is universally applicable (flush mounting / on plaster assembly).

Another special feature of in Fig. 13 Gurtwicklers shown is that the second deflection roller 29 associated carrier 32 on the Gurtwickler in the other attachable or can be placed. In the attached state, the carrier 32 is rigidly connected to the Gurtwickler in the rest. Here and preferably, the carrier 32 between the upper bearing 24 and the housing 1 and the upper abutment 25 is clamped.

Interesting is in the Fig. 13 Gurtwickler shown also the leadership of the supply cable 42. For this purpose, a preferably at the lower abutment 25 hook-shaped cable guide means 43 is provided. The integration of the cable guide means 43 in the abutment 25 leads to a particularly compact design. Preferably, the lower abutment 25 forms together with the cable guide means 43 is a one-piece component.

Interesting is in the Fig. 13 Gurtwickler shown continue the realization of the control panel. On the front page 9 Gurtwicklers cutouts are provided which form resilient touch panels in the housing wall. Behind these touch panels corresponding electrical buttons, preferably SMD buttons are arranged on a board. This leads to an arrangement with a particularly small number of components.

Finally, it should be pointed out that in the presentation in Fig. 13 exceptionally, both the mounting frame 21 and the counter-bearing 25 are shown in the assembled state.

Claims (11)

1. Strap winder for a darkening means such as a roller blind or the like, having a housing (1), having a drive arrangement (2), which is located in the housing (1) and is intended for winding up a strap (3) or the like in a motor-driven manner, and having a strap entrance (4) for introducing the strap (3) or the like into the housing (1), wherein the housing (1) has an essentially flat shaping with two flat sides (5, 6), an upper side (7), an underside (8), an end side (9) and a rear side (10), wherein the drive arrangement (2) has a drive motor (11), a gear mechanism (12), which is arranged downstream of the drive motor (11), and a reel (13) for the strap (3) or the like, the reel being arranged downstream of the gear mechanism (12), wherein a fastening arrangement (14) is provided for fastening the strap winder in the installed state, characterized in that, using the same housing (1) in each case, the strap winder can be installed both by concealed mounting in a brickwork recess (15) in a brickwork portion (16) and by surface mounting on an installation surface (17) of a brickwork portion (16), and in that the fastening arrangement (14), for this purpose, has concealed-mounting fastening means (18) and surface-mounting fastening means (19), in that the concealed-mounting fastening means (18), in the region of the end side (9), comprise a mechanical interface (20) via which the strap winder, mounted in a concealed manner, can be fastened in or on the brickwork recess (15), in that the concealed-mounting fastening means (18), in the region of the end side (9), comprise a frame holder as a mechanical interface (20) and, if appropriate, an installation frame (21) which corresponds to the frame holder, in that, in the case of concealed mounting, the installation frame (21) is fastened on the brickwork portion (16) and is otherwise fastened rigidly to the strap winder by means of the frame holder, and in that the installation frame (21), for surface mounting, can be released from the frame holder.
2. Strap winder according to Claim 1, characterized in that the surface-mounting fastening means (19), in the region of the rear side (10), comprise a mechanical interface (24) via which the surface-mounted strap winder can be fastened on the installation surface (17) of the brickwork portion (16), in that the surface-mounting fastening means (19), in the region of the rear side (10), comprise a bearing as a mechanical interface (24) and, if appropriate, an abutment (25) which corresponds to the bearing, in that the abutment (25), for surface mounting, is fastened on the brickwork portion (16) and engages with the bearing, preferably in that the bearing and the abutment (25), for surface mounting, form a pivot bearing for the strap winder on the brickwork portion (16).
3. Strap winder according to Claim 2, characterized in that the bearing has at least one bearing element (26) which, for surface mounting, engages with an associated element (27) of the abutment (25), and in that the bearing element (26) is a bearing bore and the abutment element (27) is a bearing bolt which corresponds to the bearing bore, or in that the bearing element (26) is a bearing bolt and the abutment element (27) is a bearing bore which corresponds to the bearing bolt.
4. Strap winder according to one of the preceding claims, characterized in that two strap entrances (4a, 4b) are provided, and in that it is provided that for concealed mounting the strap (3) enters into the strap winder via the first strap entrance (4a), and that for surface mounting the strap (3) enters into the strap winder via the second strap entrance (4b), preferably that the first strap entrance (4a) is located in the region of the end side (9), and that the second strap entrance (4b) is located in the region of the rear side (10), preferably that the two strap entrances (4a, 4b) are arranged such that the strap (3) entering into the respective strap entrance (4a, 4b) runs essentially parallel to the brickwork portion (16) for surface mounting and concealed mounting.
5. Strap winder according to Claim 4, characterized in that, in the housing (1), the first strap entrance (4a) is assigned a first deflecting roller (28) and the second strap entrance (4b) is assigned a second deflecting roller (29), and in that, with the strap winder mounted in a concealed manner, the strap (3) runs from the first strap entrance (4a) to the reel (13) via the first deflecting roller (28), and/or in that, with the strap winder surface mounted, the strap (3) runs from the second strap entrance (4b) to the reel (13) via the second deflecting roller (29) and, if appropriate, the first deflecting roller (28).
6. Strap winder according to one of the preceding claims, characterized in that a first deflecting roller (28) is provided, and in that, with the strap winder mounted in a concealed manner, the strap (3) runs to the reel (13) via the first deflecting roller (28), in that a second deflecting roller (29) is provided, and in that, with the strap winder surface mounted, the strap (3) runs to the reel (13) in the first instance via the second deflecting roller (29) and, if appropriate, then via the first deflecting roller (28).
7. Strap winder according to Claim 6, characterized in that the first deflecting roller (28) is located in the region of the end side (9), and in that the second deflecting roller (29) is located in the region of the rear side (10), preferably in that the two deflecting rollers (28, 29) are arranged such that the strap (3) which, for surface mounting, runs via the second deflecting roller (29) and, if appropriate, the first deflecting roller (28) and the strap (3) which, for concealed mounting, runs via the first deflecting roller (28) are located in a region above the strap winder, substantially parallel to the brickwork portion (16).
8. Strap winder according to Claim 6 or 7, characterized in that the second deflecting roller (29), at least for surface mounting, is arranged in the region of the upper side (7), preferably above the upper side (7), of the housing (1), and further preferably outside the housing (1).
9. Strap winder according to one of Claims 6 to 8, characterized in that the second deflecting roller (29) is arranged on a carrier (32), in that the carrier (32) is configured in the manner of a retaining bracket, in that the retaining bracket, at one end, carries the deflecting roller (29) and, at the other end, is otherwise fastened, or can be fastened, on the strap winder such that it can be pivoted preferably about a pivot axis (33), preferably in that the pivot axis (33) of the retaining bracket is oriented parallel to the axis of rotation of the second deflecting roller (28).
10. Strap winder according to one of Claims 6 to 9, characterized in that the second deflecting roller (29), for surface mounting, can be moved into an operating position and, then, is arranged preferably above the upper side (7).
11. Strap winder according to one of the preceding claims, characterized in that a guiding insert (40) can be fitted, preferably in an exchangeable manner, for the purpose of winding up straps of different widths, the guiding insert ensuring that the strap (3) is guided laterally as it is wound up onto the reel (13), preferably in that the guiding insert (40), in the installed state, is in guiding engagement with the strap (3) at a location between the first deflecting roller (28) and the reel (13).

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