Belt guide device

Abstract

Belt guiding device (1) for guiding a roller shutter belt through a wall of a roller shutter box, with at least one brush (121, 122) lying on the roller shutter belt guided through the belt guiding device (1), wherein the at least one brush (121, 122) is carried by a brush carrier (12) which is connected to the rest of the belt guiding device (1) in such a way that, when connected to the rest of the belt guiding device (1), it is movable together with the at least one brush (121, 122) relative to the rest of the belt guiding device (1), characterized in that the brush carrier (12) forms a part, namely a front side wall, a right side wall and a left side wall of a laterally closed belt guiding channel (116),whose side wall, which is located at the rear when the belt guide device (1) is mounted on the wall, is formed by a surface (117) formed on a base (11) of the belt guide device (1) and through which the roller shutter belt is guided, wherein the at least one brush (121, 122) essentially completely fills the space between the side walls of the belt guide channel (116) and the roller shutter belt, and that the brush holder (12) is movable in such a way that a change in the dimension of the belt guide channel (116) can be effected.

Description

[0001] The present invention relates to a belt guiding device according to the preambles of claims 1 and 8.

[0002] Such belt guiding devices are known, for example, from DE 10 2004 033 776.

[0003] The belt guide device described in DE 10 2004 033 776 A1 is designed such that, when attached to the roller shutter box, a cavity is formed that is delimited by the roller shutter box and parts of the belt guide device. The shape and size of this cavity are selected such that the parts protruding from the wall of a second belt guide device already mounted on the roller shutter box can be accommodated therein. This allows the belt guide device described in DE 10 2004 033 776 A1 to be easily mounted over an existing belt guide device without having to remove it first.

[0004] The mere fact that an additional belt guide is mounted above the existing belt guide improves the thermal insulation properties of the arrangement consisting of two belt guides through which the belt passes. Furthermore, the belt guide mounted above the existing belt guide is designed in such a way that it already has particularly good thermal insulation properties on its own, i.e., independently of the existing belt guide above which it is mounted.

[0005] Although the belt guide device described in DE 10 2004 033 776 A1 already has very good thermal insulation properties and is easy to install, it would be desirable, among other things, for energy savings if it had even better thermal insulation or if even easier installation could create additional incentives to use such a belt guide device and thus contribute to energy savings.

[0006] DE 30 29 555 A1 and DE 79 10 007 U1 show known belt guide devices. DE 28 27 20 A shows a seal for roller shutter boxes.

[0007] The present invention is therefore based on the object of finding a belt guiding device that enables further energy savings with little effort

[0008] This object is achieved according to the invention by the belt guiding device claimed in claim 1.

[0009] The belt guide device with a movable brush claimed in patent claim 1 enables the brush to assume the optimal position under all circumstances, for example, regardless of the thickness of the roller shutter belt and other individual characteristics, it is always in contact with the roller shutter belt as desired and can therefore have particularly good thermal insulation properties.

[0010] The embodiment of the belt guide device according to the invention claimed in claim 8 creates the prerequisite for the belt guide device to be installed without prior disassembly of the roller shutter belt. More precisely, the roller shutter belt can be guided from the edge of the first individual part via a recess in the first individual part that can be covered by a second individual part, i.e., without threading and the associated disadvantages, to the position where the slot must be located in the assembled state of the belt guide device. The resulting particularly simple installation of the belt guide device creates additional incentives to use such a belt guide device and thus contribute to energy savings.

[0011] Advantageous further developments of the invention can be found in the dependent claims, the following description and the figures.

[0012] The invention will be explained in more detail below using exemplary embodiments with reference to the drawing. Fig. 1 a perspective view of the belt guide device described in more detail below, Fig. 2 a sectional view of the Fig. 1 shown belt guide device, Fig. 3 an exploded view of the Fig. 1 and Fig. 2 shown belt guide device, and Fig. 4 to Fig. 6 diagrams to illustrate the assembly of the Fig. 1 to Fig. 3 shown belt guide device.

[0013] Regarding the following explanations, it should be noted in advance that the position and direction specifications used, such as right, left, top, bottom, front, back, etc., are to be understood in relation to the frontal plan view of the belt guide device presented here in the state in which it is attached to the wall as intended.

[0014] In the example presented here, the belt guide device is made at least largely of plastic and is manufactured using the injection molding process. However, in principle, it could also be made of any other material.

[0015] The belt guide device presented here is designated by reference number 1 in the figures.

[0016] The belt guiding device 1 is designed as the belt guiding device described in DE 10 2004 033 776 A1 and as in Fig. 1 of DE 10 2004 033 776 A1 illustrates that the belt guide device is to be placed over a belt guide device already mounted on the roller shutter box and fastened to the wall area surrounding this belt guide device. The existing belt guide device will in most cases be inserted into an opening provided in the roller shutter box wall and protrude outwards from this opening. The said opening is the opening through which the roller shutter belt, which is to be guided through the belt guide device 1, is guided from outside the roller shutter box into the roller shutter box interior. The part of the existing belt guide device that protrudes outwards from the roller shutter box wall comes in a cavity 111 (see in particular Fig. 2) of the belt guide device 1 presented here, which is limited by the roller shutter box wall and parts of the belt guide device 1 presented here. In the intended installed state of the belt guide device 1 presented here, the roller shutter belt is guided into the interior of the roller shutter box via the belt guide device 1 presented here, the cavity 111, the already existing belt guide device located therein, and the opening provided in the roller shutter box wall.

[0017] It should be noted at this point that there is no restriction on the existing belt guide device being designed and arranged as mentioned above. The existing belt guide device can also be designed and arranged in any other way. The shape and size of the parts protruding from the wall and located within the cavity 111 are also, in principle, not subject to any restrictions. With appropriate design and dimensions of the cavity 111, the belt guide device presented here can be mounted over any other belt guide device.

[0018] As can be seen in particular from the Fig. 3, the belt guiding device 1 in the example considered is composed of a base 11, a brush holder 12, a cap 13, a cover 14, a seal 15, a deflection roller 112, a first brush 121, a second brush 122, a third brush 123, and an elastically deformable element 124.

[0019] The base 11 is the part of the belt guide device 1 that is attached to the wall. Furthermore, the base 11 functions directly or indirectly as a support for the aforementioned additional components of the belt guide device 1. The area of ​​the base 11 facing the wall is stepped; it has an outer area, referred to below as the edge section 113, and a central area 114 raised relative to the outer area. The edge section 113 runs parallel to the wall and can be attached to it, for example, by means of screws or in some other way. The central area 114 forms the lateral and front boundaries of the aforementioned cavity 111 and serves as a support for the deflection pulley 112, the cap 13, and the cover 14.

[0020] The deflection roller 112 is inserted into an associated recess in the base 11. In this case, lateral axial projections of the deflection roller 112, which have a smaller diameter, come to rest on supports 115 formed on the base 11 and are held in this position, for example, by a locking connection, which connection allows free rotation of the deflection roller 112. The deflection roller 112 comes to rest at the inlet opening of the belt guide device 1, through which the roller shutter belt enters the belt guide device 1. The roller shutter belt is guided into a belt guide channel 116 (see Fig. 2), which begins behind the deflection pulley 112 and opens into the cavity 111. The belt guide channel 116 has openings only at the front and rear ends (intended for the entry and exit of the roller shutter belt) and is closed at the sides. Several components of the belt guide device 1 are involved in the formation of the belt guide channel 116. The side wall of the belt guide channel 116, which is located at the rear when the belt guide device 1 is mounted on the wall, is formed by a surface 117 formed on the base 11, the front side wall is formed by the brush holder 12, and the right and left side walls are also mainly formed by the brush holder 12.As will be described in more detail later, the brush holder 12 is movable together with the brushes 121, 122, 123 attached thereto and the elastically deformable element 124, so that the dimensions of the belt guide channel 116 and the position of the brushes 121, 122, 123 in relation to the rest of the belt guide device 1 can be changed.

[0021] The cross-section of the belt guide channel 116 is only slightly larger than the cross-section of the roller shutter belt and is further reduced by the brushes 121 and 122 arranged one behind the other within the belt guide channel 116. The brushes 121 and 122 essentially completely fill the space between the upper, lower, and lateral boundaries of the belt guide channel 115 and the roller shutter belt. They serve to clean the roller shutter belt and ensure that no air, or at most only a very small amount of air, can escape from the interior of the roller shutter box into the adjacent room via the belt guide channel 116. The mobility of the brush holder 12 (and the brushes 121 and 122 attached to it), already mentioned above and described in more detail later, enables adaptability to the given conditions.

[0022] From an opening in the central area 114, through which the roller shutter belt enters the cavity 111, a recess 118 extends to the upper edge of the base 11. In the example considered, this recess 118 has a width approximately corresponding to the width of the roller shutter belt, but could in principle also be wider or narrower. Via this recess 118, the roller shutter belt to be guided through the belt guide device can be brought into its intended position from the edge of the base 11, without prior disassembly of the roller shutter belt from the winding devices to which the two ends of the roller shutter belt are attached; the base 11 and the roller shutter belt can be simply Fig. 4 and will be described in more detail later, without any preparatory work. Because the cap 13 is not yet placed on the base 11 during this nesting process, and the belt guide channel 116 is therefore not yet closed, the roller shutter belt can also be guided in this way into the belt guide channel 116, which is only formed by the interaction of the base 11 and the cap 13.

[0023] In the example considered, the base 11 is formed in one piece, but could also be composed of several individual parts. For example, as in the belt guide device described in DE 10 2004 033 776, it could consist of two mirror-symmetrical halves that are connected to each other by a snap-in connection.

[0024] The cap 13 is placed on the base 11 together with the brush holder 12 attached thereto and the belt guide device components (brushes 121 to 123, elastically deformable element 124) attached to the brush holder 12.

[0025] The belt guide device components attached to the brush holder 12, ie the brushes 121 to 123 and the elastically deformable element 124, are inserted from the side into corresponding T-shaped or mushroom-shaped recesses in the brush holder 12 (see in particular the Fig. 2 and Fig. 3).

[0026] Brushes 121 and 122 are arranged one behind the other at a short distance (relative to the direction of movement of the roller shutter belt) and, when the belt guide device is properly assembled, extend far enough into the belt guide channel 116 that they come to rest on the roller shutter belt. These brushes 121 and 122 close off the portion of the cross-section of the belt guide channel 116 not filled by the roller shutter belt at the locations where they are provided, thus ensuring that no or only a negligible air exchange can take place between the area on this side of a respective brush and the area on the other side of the respective brush. Brushes 121 and 122 therefore contribute to improving the thermal insulation properties of the belt guide device and also clean the roller shutter belt.

[0027] The third brush 123 is located outside the belt guide channel 116. It is arranged such that, in the properly assembled state of the belt guide device, it comes into contact with the area of ​​the cap 13 located above the brush holder 12 and closes off the area located between the brush holder 12 and the cap 13 to the outside, so that no air can escape from the belt guide device and into the belt guide device via the area located between the brush holder 12 and the cap 13, and thus a further improvement in the thermal insulation properties of the belt guide device is achieved.

[0028] The elastically deformable element 124 is also located outside the belt guide channel 116. It is arranged such that, when the belt guide device is properly assembled, it abuts the area of ​​the cap 13 located above the brush holder 12 and elastically pushes the brush holder away from there. In the example considered, the elastically deformable element 124 is arranged on the side of the brush holder 12 opposite the side of the brush holder 12 carrying the brushes 121, 122. However, this is not absolutely necessary. The primary importance is that the elastically deformable element 124 can position the brush holder or the brushes 121, 122 attached to it as desired.A further positive effect of the elastically deformable element 124 is that, like the third brush 123, it prevents air from escaping from the belt guide device and into the belt guide device via the area located between the brush holder 12 and the cap 13, thus achieving a further improvement in the thermal insulation properties of the belt guide device.

[0029] In the example considered, the elastically deformable element 124 is a hollow rubber profile with an approximately semicircular cross-section. The fact that it is a hollow profile proves to be advantageous because a profile without cavities would not be as easy to compress and would also be less strong, and thus the extent to which the brush holder 12 and the brushes 121, 122 provided thereon could be limited. However, there is no absolute necessity to design the elastically deformable element 124 in the same way. It can also be any other element, made of any material and having any structure. A completely different elastically deformable element than that used in the example considered can also be used, for example, a metal spring.

[0030] The brush holder 12 is inserted into the cap 13 and connected to it before or after the assembly of the brushes 121, 123 and the elastically deformable element 124. In the example considered, pins 125 provided on the brush holder 12 and projecting laterally therefrom are located in elongated holes 131 provided on the side of the cap 13. This type of connection enables the brush holder 12, together with the belt guide device components attached to it, to be movable relative to the cap 13. More precisely, the brush holder 12 can be pivoted about the pins 125 and displaced in the direction of the elongated holes 131.

[0031] In addition to the actual cap, the cap 13 also has an upwardly extending extension 126 which is intended to close the recess 118 provided in the base 11.

[0032] After the brush holder 12 has been inserted into the cap 13 and secured thereto (by inserting the pins 125 into the elongated holes 131), the cap 13 can be placed on the base 11. In the properly assembled state of the belt guide device 1 • the side of the brush holder 12 carrying the brushes 121, 122 comes to lie above the surface 117 of the base 11, so that the surface 117 of the base 11, the side of the brush holder 12 carrying the brushes, and the lateral flanks extending from this side of the brush holder 12 form the aforementioned belt guide channel 116. And • the extension 126 of the cap 13 comes to lie over the recess 118 of the base 11 and covers it.

[0033] In the example considered, the cap 13 is fixed / attached to the base 11 via elevations provided on the cap 13 or the base 11. When the two belt guide device components are assembled as intended, these elevations come to rest in associated openings of the other belt guide device component and at least partially engage with one another. In the example considered, elevations 119-1 and 119-2 are provided on the base 11, and associated recesses 127-1 and 127-2 are provided on the cap 13.

[0034] The extension 126 of the cap 13 is slightly wider than the recess 118 of the base 11, so that the extension 126 and the area of ​​the base 11 adjacent to the recesses 118 overlap each other. The overlapping areas of the extension 126 and the base 11 are each only half as thick as the adjacent areas, so that the extension 126 completely fills the recess 118 and there are no steps between the base 11 and the extension 126.

[0035] After the cap 13 has been placed on the base 11 as intended and connected to it, the cover 14 is placed on top. The cover 14 covers most of the base 11 and the cap 13. Only the part of the cap 13 through which the roller shutter belt enters the belt guide device remains uncovered. When the belt guide device is properly assembled, this part of the cap 13 protrudes forward from the cover 14 through a recess 141 provided in the cover 14; the rest of the base 11 and the cap 13 are essentially completely covered by the cover 14 when it is properly attached. The cover 14 is pushed from the front over the part of the cap 13 that protrudes from it. The cover 14 projects laterally beyond the base 11 and, when properly mounted, strikes the wall on which the belt guide device 1 is mounted.

[0036] In the example considered, the cover 14 is attached to the base 11 by a clamping connection or a snap-in connection. For this purpose, several pins 142 are provided on the cover 14, and corresponding recesses 120 are provided on the base 11, into which the pins 142 are inserted when the cover 14 is placed on the base 11 and cap 13.

[0037] The panel 14 has a slot 143 extending from the recess to the lower edge. The provision of this slot 143 allows the panel 14 to be installed even when the roller shutter belt is already fully installed or not removed. At the location of the slot 143, the areas of the panel 14 on either side of the slot 143 can be elastically bent apart in opposite directions, creating an opening large enough to guide the roller shutter belt through. In this way, the panel 14 can be arranged so that the lower area of ​​the panel 14 lies behind the roller shutter belt, even without dismantling the roller shutter belt.

[0038] The slot 143 has the smallest possible width. There is no minimum size for the slot width because the cover 14 can be bent open to allow the roller shutter belt to pass through, making it possible to position the cover 14 in the desired position relative to the roller shutter belt even with an infinitely narrow slot 143. Only if bending it open is not possible for whatever reason would the width of the slot 143 have to correspond to at least the thickness of the roller shutter belt.

[0039] Particularly if the wall on which the belt guide device is mounted is uneven or rough, it can prove advantageous to place a seal between the wall and the parts of the base 11 that come into contact with it, i.e., the edge portion 113 of the base. Such a seal is designated in the figures by the reference numeral 15. The seal 15 is a sealing ring adapted to the shape and size of the edge portion 113, which is interrupted (cut open) at one point to allow it to be installed even when the roller shutter belt is already fully installed or not removed. In the example considered, this slot in the seal is located at the top (in the area of ​​the recess 118).This allows for particularly simple installation of the belt guide device because, in this case, the seal 15 can already be attached (e.g., glued) to the edge section 113 before the belt guide device is attached to the wall, thus requiring fewer individual parts to be handled when attaching the belt guide device to the wall. Like the slot 143 in the panel 14, the slot in the seal 15 is also as narrow as possible.

[0040] The seal 15 provides improved sealing of the cavity 111 and enlarges it by the thickness of the seal 15.

[0041] The belt guide device described above is installed as shown in the Fig. 4 to Fig. 6 illustrates mounted on the wall.

[0042] In a preparatory first step, the seal 15 is glued onto the bottom edge portion 113 of the base 11 in such a way that the slot in the seal 15 lies in the area of ​​the recess 118 of the base 11.

[0043] This arrangement is, as in the Fig. 4 illustrates sliding the roller shutter belt over the roller shutter belt. As already mentioned above, this can be done with the roller shutter belt fully installed. Because the roller shutter belt does not have to be threaded into a completely enclosed recess, but can be brought into its intended position from the edge of the base 11 via the recess 118, no free roller shutter belt end is required for installation.

[0044] Then, as in the Fig. As illustrated in Figure 5, the base 11 with the pre-mounted seal 15 is screwed to the wall. The base 11 can be mounted over an existing belt guide device. The parts of the existing belt guide device protruding from the wall are located in the cavity 111.

[0045] When screwing on the base 11, the recess 118 present in the base 11 again proves advantageous. Because this recess is very wide (wider than the roller shutter belt) and also extends upwards from the center of the base 11, the optimal position of the base 11 can be easily determined and checked. In particular, it is easy to determine whether the base 11 is in the intended position relative to the existing belt guide device and whether the roller shutter belt runs optimally through the base 11, or more precisely, whether it runs as straight, centered, and with as little friction as possible over the deflection pulley 112 and the surface 117.

[0046] Then, as in Fig. 6, the cap 13 with the brush holder 12 inserted therein and the additional belt guide device components (brushes 121, 122, 123, elastically deformable element 124) attached to the brush holder 12 is placed onto the base 11. By placing the cap 13 in place, the belt guide channel 116 is formed or completed around the roller shutter belt, and the recess 118 provided in the base 11 is closed. The latter has the positive effect that the very advantageous recess 118, as mentioned above, is sealed airtight or almost airtight, and thus no air can enter or exit the cavity 111 via the recess 118, thus achieving an improvement in thermal insulation.

[0047] Finally, the cover 14 is placed on this assembly, completing the belt guide device 1. As already explained above, the slot 143 provided in the cover allows this to be done without threading the roller shutter belt, i.e., with the roller shutter belt fully assembled. The belt guide device is fully assembled after the cover 14 has been placed on. The fully assembled belt guide device 1 is shown in the Fig. 1 in perspective view and in the Fig. 2 shown in a sectional view.

[0048] As already mentioned above, the brush holder 12, together with the additional belt guide device components arranged thereon (brushes 121, 122, 123, elastically deformable element 124), is movable relative to the rest of the belt guide device. The brush holder 12 can be pivoted about the pins 125 provided thereon and displaced along the elongated holes. To avoid any misunderstanding, it should be noted that the associated movement of the brushes 121, 122, 123 represents a movement of the brushes as a whole, and not merely a change in the bristle position. However, it cannot be ruled out that a movement of the brushes as a whole may also result in a change in the bristle position.

[0049] The mobility of the brush holder 12 together with the additional belt guide device components arranged thereon proves to be advantageous in several respects.

[0050] First, this ensures that the brushes 121, 122 always rest on the roller shutter belt running beneath them, regardless of the thickness of the roller shutter belt. This is supported by the elastically deformable element 124, which is also attached to the brush holder 12. This element 124 presses the brush holder 12 and, together with it, the brushes 121, 122 toward the roller shutter belt.

[0051] Second, the position of the brush holder 12 and thus also the position of the brushes 121, 122 attached to it depends on the direction of movement of the roller shutter belt. More specifically, the brushes 121, 122 exert less pressure on the roller shutter belt when lowering the roller shutter than when raising the roller shutter.

[0052] When the roller shutter is lowered, the roller shutter belt moves into the roller shutter box via the belt guide device 1 presented here, the cavity 111, and the belt guide device over which this belt guide device is built. This direction of movement of the roller shutter belt and the fact that the brushes 121, 122 are always in contact with the roller shutter belt mean that the brushes 121, 122 and thus also the brush holder 12 are moved along with the roller shutter belt. In the process, the pins 125 provided on the brush holder 12 are pushed upward into the elongated holes 131 of the cap 13 that receive them. This movement of the brush holder 12, caused by the movement of the roller shutter belt, results in the brushes 121, 122 being moved slightly away from the roller shutter belt and no longer pressing as strongly on the roller shutter belt.The reduced pressure on the roller shutter belt means that there is less resistance to the movement of the roller shutter belt, and the roller shutter can be lowered more quickly and reliably. With conventional belt guide devices with brushes, it sometimes happens that a roller shutter that has been pulled all the way up only moves very slowly or sometimes not at all when an attempt is made to lower it. The belt guide device presented here effectively prevents this. Because the brushes 121, 122 press less forcefully on the roller shutter belt when the roller shutter is lowered, less friction is exerted on the roller shutter belt, and the roller shutter belt is slowed down less by the brushes 121, 122. This is further intensified by the fact that the bristles of the brushes 121, 122 can tilt or rotate more quickly and easily in the direction required due to the reduced force with which the brushes 121, 122 press against the roller shutter belt.can bend into which the roller shutter belt is moved. This also has the positive effect that there is less resistance to the movement of the roller shutter belt. As a result, the lowering of the roller shutter is no longer hindered at all or only to a negligible extent. Even when the roller shutter is lowered, the brushes 121, 122 are always in contact with the roller shutter belt, because without such contact the roller shutter belt could not move the brushes 121, 122 as described. This means that the brushes 121, 122 brake the roller shutter belt less, but still ensure that no air exchange can take place via the belt guide channel 116 and that the belt is cleaned by the brushes.

[0053] When the roller shutter is raised, the roller shutter belt moves in the opposite direction. This direction of movement of the roller shutter belt and the fact that the brushes 121, 122 are always in contact with the roller shutter belt mean that the brushes 121, 122 and thus also the brush holder 12 move along with the roller shutter belt. In the process, the pins 125 provided on the brush holder 12 are pulled downward into the elongated holes 131 of the cap 13 that receive them. This movement of the brush holder 12, caused by the movement of the roller shutter belt, causes the brushes 121, 122 to move toward the roller shutter belt and press more firmly against the roller shutter belt, allowing the brushes to exert an improved sealing and cleaning effect.

[0054] The brushes 121 and 122 are therefore automatically brought into the optimal position by the roller shutter belt and also automatically adjust to the respective thickness of the roller shutter belt.

[0055] It should be clear that the belt guide device described above can be modified in many ways.

[0056] For example, there is no absolute necessity to connect the base 11, the cap 13, and the cover 14 to one another as described. The connection can also be made in any other manner. The same applies to the connection between the cap 13 and the brush holder 12, as well as to the connections between the brush holder 12 and the brushes 121, 122, 123 and the elastically deformable element 124.

[0057] Furthermore, while it is certainly advantageous to provide two brushes 121 and 122 that press against the roller shutter belt (and seal the belt guide channel 116), it is not absolutely necessary to provide exactly two such brushes. The number of these brushes can also be greater or less than two.

[0058] Irrespective of this, the third brush 123 could possibly be omitted, or several such brushes could be provided, preferably depending on the details of the practical implementation of the belt guiding device.

[0059] It should be obvious and requires no further explanation that the provision of brushes 121, 122, 123 that can be moved together with the brush holder 12 or in some other way is not only advantageous for the belt guide device presented here. The provision of this feature also proves advantageous for any other belt guide devices that contain one or more brushes. In particular, the said feature can also be provided for belt guide devices without the recess 118.

[0060] Furthermore, the provision of the recess 118 is not only advantageous for the belt guiding device presented here. Such a recess can, in principle, be used in almost all belt guiding devices and proves particularly advantageous for belt guiding devices that are mounted over an existing belt guiding device or are intended to replace an existing belt guiding device. In particular, the recess 118 or a corresponding recess can also be provided for belt guiding devices without movable brushes or brush holders.

[0061] The belt guide device described above is, regardless of the details of its practical implementation, a belt guide device that is extremely easy to handle and yet provides excellent heat insulation. List of reference symbols 1 belt guide device 11 Base 12 brush holders 13 cap 14 aperture 15 Seal 111 Cavity 112 pulley 113 edge section 114 central area 115 edition for 112 116 Belt guide channel 117 rear boundary surface of 116 118 recess 119-1 Survey 119-2 Survey 1 20 Deepening 121 first brush 122 second brush 123 third brush 124 elastically deformable element 125 pen 126 extension 127-1 Recess 127-2 recess 131 slot 141 recess 142 pen 143 slot

Claims

[1] Belt guiding device (1) for guiding a roller shutter belt through a wall of a roller shutter box, with at least one brush (121, 122) which lies on the roller shutter belt guided through the belt guiding device (1), wherein the at least one brush (121, 122) is carried by a brush carrier (12) which is connected to the rest of the belt guiding device (1) in such a way that, when connected to the rest of the belt guiding device (1), it is movable together with the at least one brush (121, 122) relative to the rest of the belt guiding device (1), characterized byin that the brush holder (12) forms a part, namely a front side wall, a right side wall and a left side wall of a laterally closed belt guide channel (116), the rear side wall of which, when the belt guide device (1) is mounted on the wall, is formed by a surface (117) formed on a base (11) of the belt guide device (1) and through which the roller shutter belt is guided, wherein the at least one brush (121, 122) essentially completely fills the space between the side walls of the belt guide channel (116) and the roller shutter belt, and in that the brush holder (12) is movable in such a way that a change in the dimension of the belt guide channel (116) can be effected. [2] Belt guiding device according to claim 1, characterized by , - that the belt guide device (1) contains belt guide means (112, 117) over which the roller shutter belt is moved when the same is actuated, and the at least one brush (121, 122) is arranged on the side of the roller shutter belt facing away from the belt guide means (112, 117), and - that the belt guiding device (1) is designed such that the distance between the at least one brush (121, 122) and the belt guiding means (112, 117) can be changed by the movement of the brush holder (12). [3] Belt guide device according to one of the preceding claims, characterized by that the belt guide device (1) is designed such that the brush holder (12) is pivotable relative to the rest of the belt guide device (1) when connected to the rest of the belt guide device (1). [4] Belt guide device according to claim 1 or 2, characterized bythat the belt guiding device (1) is designed such that the at least one brush (121, 122) or the brush holder (12) carrying the at least one brush (121, 122) is displaceable relative to the rest of the belt guiding device (1) when connected to the rest of the belt guiding device (1). [5] Belt guide device according to one of the preceding claims, characterized by that the belt guide device (1) contains an elastically deformable element (124) which is arranged and designed such that it brings the brush holder (12) into a position in which the brush (121, 122) presses against the roller shutter belt. [6] Belt guide device according to one of the preceding claims, characterized by that the position which the at least one brush (121, 122) or the brush holder (12) currently assumes depends on the thickness of the roller shutter belt. [7] Belt guide device according to one of the preceding claims, characterized by that the position which the at least one brush (121, 122) or the brush holder (12) currently assumes depends on the direction of movement of the roller shutter belt during the current or the previous movement. [8] Belt guide device according to one of the preceding claims, characterized bythat it is designed in such a way that, when mounted on a wall of a roller shutter box, a cavity (111) is formed which is delimited by the wall and the belt guide device (1), the shape and size of this cavity being selected in such a way that the parts of a belt guide device already mounted there and protruding from the wall can be received therein, that in the region of the belt guide device (1) delimiting the cavity (111) there is provided an opening through which the roller shutter belt passes, and that the opening is formed by an intermediate space between a plurality of individual parts (11, 13) from which the belt guide device (1) is composed. [9] Belt guide device according to claim 8, characterized byin that the plurality of individual parts (11, 13) between which the opening is located comprise a first individual part (11) and a second individual part (13), wherein the first individual part (11) contains a recess (118) which extends from the point at which the opening is located after the individual parts (11, 13) of the belt guide device (1) have been assembled, to the edge of the first individual part (11), and via which the roller shutter belt can reach from the edge of the first individual part (11) to the point at which the opening is located after the individual parts (11, 13) of the belt guide device (1) have been assembled, and the second individual part (13) is or contains a part filling or covering the recess (118) of the first individual part (11). [10] Belt guide device according to claim 8, characterized by that the plurality of individual parts (11, 13) between which the opening is located are individual parts that partially overlap one another.

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