FR2952116A1 - Side part module for block-bay type roller shutter that is used in restoration of old buildings, has side parts comprised of supports that are arranged to support end of winding drum, and fixing foot fixed at side parts on window - Google Patents

Abstract

The module has side parts (31, 34) comprised of supports (38, 39) that are arranged to support a longitudinal end of a winding drum. A fixing foot is fixed at the side parts on a window, and a recess position is separated from the fixing foot. The side parts are connected with the fixing foot by hinge units (33, 36). The fixing foot comprises attaching bolts (32, 35) that are arranged in a slide section assembled on the window. The hinge unit includes a hinge wing that is located at the side parts. An independent claim is also included for a roller shutter.

Description

-1- LATERAL PART MODULE FOR A BRAKE SHUTTER TYPE AND A ROLLING SHUTTER PROVIDED WITH SUCH A MODULE

The invention relates to a lateral portion module for a roller shutter of the bay block type, comprising at least one lateral part comprising supports arranged to support the longitudinal end of a winding shaft, directed towards the lateral part. , and an envelope which surrounds, at least in sections, said winding shaft on the circumference, and a fixing foot for fixing said side portion on a window. It also relates to a wheel-type wheel-steering wheel provided with such a module.

Generic bay-type roller blinds comprise an apron which is received on a winding shaft and arranged to be lowered and reassembled in front of a building opening, and an enclosure for the winding shaft arranged to be fixed. on the window. Said enclosure for the winding shaft comprises two front lateral parts on which said winding shaft is supported and an envelope which envelopes, at least in sections, the winding shaft on its circumference. For this purpose, said lateral parts are provided with supports intended to support the longitudinal end of the winding shaft, which shows in the direction of the respective lateral part, and said envelope. The supports for the envelope that come into play are support surfaces, support pins, flanges, engagement channels, etc. .25 During the energy restoration of old buildings, attempts are made to eliminate the thermal bridges resulting from the fact that the shutter box integrated into the masonry at the lintel is connected via a passage opening from the deck to the outside of the building. building and is accessible from the interior side of the building 30 via a revision opening covered only by a revision hatch. Old roller shutters are often dismantled from the shutter boxes 2952116 -2- integrated into the masonry and are replaced by one-piece roller shutters mounted in front of the window. The old roller shutter box can then be sealed correspondingly, for example using a polyurethane foam injected therein. However, the optical appearance of such monobloc roller shutters mounted in front of the window in the upper zone is not very advantageous, particularly in the case of historic buildings. Beyond this fact, this results in undesirable shading of the window in its upper zone.

According to another approach, existing rolling shutters are exchanged together with the windows. Indeed, when the windows are removed, the recessed roller shutter is accessible across its entire lower width for the exchange of the shutter and also via a revision opening located after the window on the interior side of the building. and having a width which, correspondingly, is less important. To this end, there are 15 window-roller shutter assemblies that can be mounted together and in one piece to replace old windows and old roller shutters. However, a disadvantage lies in the fact that the energy restoration of the shutter can not be achieved without an exchange of windows. This is the reason why, in recent times, efforts have been made several times to allow to exchange the old shutters placed in the shutter boxes incorporated in the masonry, via said opening on the interior side of the building, against roller shutters for renovation. For this purpose, said rolling shutters of renovation have, as a rule, an envelope which at least partially surrounds the winding shaft and which allows insulation of this interior for the winding shaft, communicating thermally with the outside of the building via said opening passage of the deck, relative to the interior of the building thermally connected via said revision opening. Due to the thinner deck blades, such retrofit shutters have a smaller bundle diameter than the original roller shutters so that existing existing shutter boxes incorporated into the masonry provide room for a surrounding casing. the winding shaft and an additional thermal insulation layer.

An embodiment of a roller shutter block that can be mounted together with the window and intended to be introduced into shutter boxes integrated into the masonry is described in particular in EP 1 213 435 B1. It is proposed alternatively to fill with foam space still existing in the roller shutter box built into the masonry, after mounting the block shutter renovation. A disadvantage lies in the fact that it is no longer possible to perform maintenance of the roller shutter renovation via the revision hatch, at least not without removing the injected foam. Therefore, in another variant, it has already been proposed crescent-shaped insulation elements that surround the aluminum sheet box of the rolling shutter renovation and provide thermal insulation to the interior side of the building and that after having removed said revision hatch and the lower crescent insulation element, allow maintenance of the renovation roller shutter.

But in this case, a subsequent assembly of the renovation roller shutter in exchange for the old roller shutter without exchanging the window is not provided and fails in particular because it is impossible to pass the side parts of the trunk of the rolling shutter of renovation through said revision opening in the shutter box integrated into the masonry and put them in position.

This point is raised in the German utility model DE 20 2008 007 039.2, in which a two-piece configuration of the lateral parts of the renovation roller shutter is proposed in order to better insert them, through the revision opening, in the mounting space defined by the rolling shutter box integrated into the masonry and being able to position them in it. In this case, the lower half of each of the lateral parts has a connecting foot which, in assembled state, projects downwards and by means of which the lateral part can be fixed to the frame of the window or to a slide of the roller shutter fixed on the frame of the window. In the case of a lateral part made in one piece, this connecting foot would prevent positioning in the mounting space. The lateral portions have inwardly projecting cylinder-segmented supports on which can be placed an insulation mat forming an envelope for the winding shaft and thus the rolling shutter box. renovation. Said insulation blanket is provided on its side facing towards the winding shaft with wedge-shaped incisions and is reinforced by means of metal bars extending over its entire length. .

Although, with said rolling shutter of renovation of the German utility model DE 20 2008 007 039.2, good results have already been achieved in terms of thermal insulation, there is still a need for improvement as to the ease of assembly.

Therefore, the object of the present invention is to create a side-part module for a bay-block shutter, which allows easy mounting also under tight space conditions, and which can equip a block-type shutter. -Bie of corresponding side parts.

This object is achieved by the lateral section module as defined in the preamble and characterized in that said lateral part is connected to said fixing foot by means of a hinge so that the lateral part is movable between a mounting position. in which it is retracted towards said fixing foot and a recessed position in which it is raised and away from the fixing foot.

It is also achieved by a shutter-type shutter comprising an apron formed on a winding shaft and arranged to be lowered and reassembled in front of a building opening, and an enclosure for the winding shaft, arranged to it is fixed on a window and has two front side parts on which said winding shaft is supported, and an envelope which surrounds, at least in sections, said winding shaft on the circumference, said shutter being equipped Such a module 2952116 -5- The mounting module according to the invention further comprises a winding shaft on which is received an apron so as to be lowered and reassembled in front of a building opening, the rolling shutter block- bay according to the invention comprises an enclosure for the winding shaft arranged to be fixed on the window and which has two lateral end portions for supporting said winding shaft nt, and an envelope which surrounds, at least in sections, said winding shaft on its circumference, said lateral portions being made on a folding lateral part module described above.

Each of the lateral parts may have an own fixing foot, for example a fixing pin or bolt which projects downwards in the mounted state and is intended to be inserted into a chamber of a slide profile mounted on the the window.

For the mounting of the two lateral section modules thus formed in a tightened mounting space, for example in a roller shutter box already existing in the masonry and described above, the lateral part of the enclosure of the shaft of the The winding of the trunk of the roller shutter bay-bay is folded, in a mounting position, towards the foot of attachment, that is to say for example to the insertion bolt, for example about 90 ° relative to its embedded position, so that said fixing bolt protrudes 90 ° from said side portion. In this position, the lateral part can thus be introduced also through a narrow revision opening into the mounting space created by the existing roller shutter box, the length of the insertion bolt or the depth of the attachment foot. protruding from said hinge, ultimately determining the free width of the access to the mounting space, i.e., the revision opening in case of renovation, which is required at least for the mounting.

In the field of old buildings, the usual values for this free width of the revision opening are substantially between 10 and 15 cm. That is why said enclosure of the winding shaft is preferably composed of a kit comprising at least one of the lateral section modules, said kit as a whole, but in particular also the lateral portion module being dimensioned. and designed so that it can be mounted, when the window is mounted, in an old building rolling shutter box that exists above the window in a wall of the building and is accessible via a revision opening having a clear width approximately between 10 and 15 cm. Said revision opening may extend through the vertical wall wall surface facing towards the interior of the building. However, the usual revision apertures are those which extend through a horizontal wall surface between the window and a vertical wall of the old building roller shutter box and are therefore limited as to their maximum possible free width at the distance. separating the window frame and the inner vertical wall of the old building roller shutter box.

If the introduction of the lateral portion module into said revision opening, the inwardly folded side portion, is made with the lower edge of the side portion first, it can be rotated during insertion until that the fixing foot is turned towards the window frame defining the mounting space at the bottom, that is, for example, that said fixing bolt is facing downwards towards the insertion chamber provided for it. on the slide profile. Then, the side portion module can be pushed down and fixed by its attachment foot on the window, i.e., for example, that the attachment bolt can be inserted into said chamber.

When, afterwards, the lateral part module is fixed on the window by its attachment pi.d, the lateral part can be raised in its embedded position, a stop device can advantageously be provided on the hinge between the fixing foot and the lateral part, by means of which the lateral part can be fixed in this recessed position. In this case, it is particularly preferred to provide for this purpose a bore which extends parallel to the axis of the hinge and passes through both a hinge flange of the lateral portion and a hinge flange of the fastening foot. and wherein a stop bolt can be introduced.

For reasons of greater accessibility, said stop hole is located, in mounted condition, preferably below the axis of articulation of the hinge, which can be produced, for example, by a bolt of joint passing through the hinge wings. Alternatively or in addition, the stop device can be made also by a snap connection, for example in the form of a stop nose projecting downwards from said hinge wing of the lateral part, and an associated stop notch in the upwardly facing surface of the hinge wing of the foot. A corresponding tight fit between the hinge wing of the lateral part and the hinge wing of the foot, so that a frictional connection is made during the recovery, would also be possible.

While the mounting of a rolling shutter renovation by means of two lateral side modules each comprising a fastening bolt connected via a hinge to the associated side part can be achieved, in any case, already quite simply, another mode Advantageous embodiment of the invention has been found to present even greater ease of assembly.

In this case, there is provided a lateral portion module which comprises two lateral parts which are each articulated via a hinge on a common fixing foot, said fixing foot then to extend naturally over the entire width of the shutter . This section of the fixing foot, which connects the two hinges together, can be used as a handle during assembly, by which said lateral part module, with the lateral parts bent towards the fixing foot, can be introduced into said opening of in the mounting space located behind, so that it reaches the recessed position. For example, the fixing foot may in this case also have two fixing bolts for the two slides. The installation in the mounting space, the rotation in the insertion position, the introduction of the fixing bolts, the raising of the lateral parts and the stopping of these in the recessed position can be as in the above described embodiment of the bay-block roller shutter according to the invention, with two separate lateral portion modules, the hinges can be designed in a corresponding manner.

The section of the fastening foot which spans the distance between the two lateral parts and the hinges may be formed by a unwinding rod, such as it must be present anyway in a roller shutter block-bay to prevent that when the apron is a little loose, it does not give against the upper face of the window frame. In this case, the fixing foot may comprise a connection on both longitudinal sides of the unwinding rod, on which is provided, for example, respectively a fixing bolt projecting downwards into the fitting position and intended to be introduced in the chamber provided for this purpose on the respective profile of the slide.

If the lateral part module is pre-assembled as such a one-piece assembly unit, the two side parts can be mounted in one operation, said unwinding wand being able to act as a handle during the introduction of the lateral section module via the revision opening in the insertion space formed by the roller shutter box integrated into the masonry and, at the same time, the mounting template for a correct positioning of the lateral section module when both fixing bolts 20 are introduced into the chambers provided for this purpose. Said unwinding rod can be reported, for example, on interlocking pivots projecting from the two connections respectively in the longitudinal direction of the unwinding rod, and thus be continuously manufactured as a single section. However, a telescopic configuration of the unwind wand would also be conceivable so that the side portion module can be used universally for different widths of retrofit roller shutters. Similarly, it would be conceivable to connect two separate side-side modules by means of a mounting bar serving as a handle and being able to be clipped between them and to mount them thus, said mounting bar being then again removed. In this context, it should be noted that it has proved advantageous, as to the mounting situation in the case of such roller shutters renovation, to also realize the winding shaft so as to be telescopic, for example by the fact that it has an axial extension piston according to German Patent DE 2005 034 063 B3, which can be locked at the desired length of elongation. Indeed, in this way, the winding shaft can be inserted between the two raised side portions in the recessed position and then be extended in the recessed position.

In the case where the renovation measure would seek to obtain a better thermal insulation of the building, it is particularly advantageous to have a thermal insulation already integrated in the shutter block-bay so that an additional filling foam, or the like, the trunk original roller shutter built into the masonry can be removed. For this purpose, advantageously at least the circumferential envelope of the enclosure of the winding shaft is made as thermal insulation of a winding shaft space surrounded by it and communicating thermally via a passage opening for the deck with a building exterior, with respect to the thermally communicating mounting space via the revision opening with a building interior.

In this case, said envelope may be constituted by a circumferential segment or, for easy mounting, preferably by several, preferably by two circumferential segments extending in the form of a cylindrical segment over the width of the shutter and which are coated with a thermal insulation layer or may consist of such a thermal insulation layer. Circumferential segments composed of a layer of non-deformable heat-insulating material, such as for example a polyurethane foam or, for improved thermal insulation, preferably Neopor®, are of reduced cost and also of simple configuration. However, sheet metal segments that have an insulating coating would also be imaginable. For an improvement of the thermal insulation, one could also consider to coat with a thermal insulation layer also the outer face of the side parts. In order to be able to fix such circumferential segments between the two lateral parts, the latter advantageously have projections in the form of a cylindrical segment which can act as a bearing surface when the respective circumferential segment is introduced by turning in said space. mounting. Preferably, each of the lateral parts comprises respectively at least one pair of such projections which define between them an insertion channel adapted in width to the circumferential segment. In this case, it is further possible to provide a stop on the lateral part, which limits the insertion movement of the circumferential segment to the desired embedding position. If said envelope is constituted, for example, by two circumferential segments, the upper circumferential segment can be introduced or introduced by rotating, during assembly, in an insertion channel formed by the cylindrical projections on each lateral part, the segment circumferential upper abutting abutting projection on the side portions when in its intended nesting position.

If the circumferential segment advantageously has an outwardly facing end surface by which it can be joined to a wall of the inwardly facing mounting space, the winding shaft space surrounded by circumferential segments shall be sealed only in an area showing towards the said revision opening on the interior side of the building. Advantageously, all the circumferential segments consist respectively of a layer of non-deformable heat-insulating material, only a terminal section 25 carrying said end surface that can be made as a plastic current profile in order to give the upper circumferential segment sufficient rigidity. for its introduction into the two insertion channels on the lateral parts. Said end surface may be provided with an adhesive layer. Therefore, a lower circumferential segment can be introduced into the area pointing towards the revision opening on the interior side of the building. For simplicity, for example, this segment may be joined end-to-end to the upper circumferential segment and, optionally, be glued therewith. By its lower end edge, the lower circumferential segment can be brought in from the inside against said unwind bar and, optionally, also be glued therein. Slots still existing between the upper circumferential segment and the lower circumferential segment and / or between said unwinding bar and the lower circumferential segment may then be further filled with silicone or otherwise sealed. It would also be conceivable to wedge the lower circumferential segment simply between the unwind bar and the upper circumferential segment.

The following will be explained in more detail below, with reference to the appended drawing, a simplified assembly method that can be carried out with an embodiment according to the invention made as a thermal insulation retrofit rolling shutter for existing roller shutter boxes in the masonry. In the figures:

FIG. 1 illustrates a perspective view of a window or window frame with the mounted slides of the bay-block shutter of the embodiment example; Figure 2 shows detail II in Figure 1;

Figure 3 illustrates a side portion module of the exemplary embodiment, the side portions being raised; Figure 4shows the side portion module shown in Figure 3 with the side portions retracted;

FIG. 5 shows the situation after the introduction of the lateral portion module illustrated in FIGS. 3 and 4 into a mounting space formed by a roller shutter box integrated into the masonry;

Figure 6 shows the side portion module of Figures 3 to 5 after mounting on the window frame and after having raised the side portions. ;

Figure 7 illustrates the mounting of an upper circumferential segment of a winding shaft housing between the raised side portions of the side portion module illustrated in Figures 3 to 6;

Figure 8 is a sectional view of the situation after mounting the upper circumferential segment; FIG. 9 shows the assembly made afterwards of a winding shaft of the roller shutter of the embodiment; FIG. 10 shows the mounting of the lower circumferential segment after mounting of the winding shaft according to FIG. 9, and FIG. 11 illustrates the mounted bayonet rolling shutter, in accordance with the mounting steps of FIGS. 1, 5, 6. , 7, 9 and 10, in the shutter box integrated in the masonry and on the window frame.

Firstly, reference is made to FIGS. 1 and 2 which show a window having a window frame 1 on either side of which is mounted a sliding profile 2. This sliding profile 2 serves as a fixing adapter of the side of the window, for a winding shaft enclosure of a roller shutter box-type trunk, as will be explained further below in relation to the other figures, and requires to be mounted as first component of the bay-shutter rolling shutter box on said window frame 1. Each slide profile 2 comprises a guiding groove 24 for the rolling shutter apron and another channel or a chamber 23 in which can be introduced a fixing bolt such that said winding shaft housing can be mounted on the side of the window by the two fixing bolts.

FIGS. 3 and 4 illustrate a side portion module which is designated in its entirety by the reference numeral 3 and on which are provided the two fastening bolts designated 32 and 35. The two fixing bolts 32, 35, together with an uncoiling section 37, form an attachment foot 32, 35, 37 of the lateral part module 3, on which two lateral parts 31, 34 are fixed respectively by a hinge 33, 36. The unwinding rod 37 spans the distance required to receive said winding shaft between the two side portions 31, 34 and at the same time serves as a handle for mounting the pre-assembled side portion module 3 to form a mounting unit. The two lateral parts 31, 34 are mounted on the fixing foot 32, 35, 37 by means of the two hinges 33, 36 so that they can be retracted and raised. FIG. 3 illustrates the lateral part module 3 in the embedded position in which said lateral parts 31, 34 are raised. Fig. 4 shows the side portion module 3 in the mounting position in which said side portions 31, 34 are retracted. The side portions 31, 34 each have a central housing 38 for the winding shaft, as will be explained further hereinafter. In addition, the two lateral parts 31, 34 each comprise an insertion channel 39 defined by two projections in the form of a segment of cylinders concentric with each other and serving as support for an upper circumferential segment of an envelope surrounding said winding shaft on the circumference.

To mount said lateral portion module 3 as a whole in an old building roller shutter box integrated into the masonry, on the window frame 1, which corresponds to a typical application of the lateral part module or the shutter bay block according to the invention, the editor can enter the lateral portion module 3, in the mounting position shown in Figure 4, by said unrolling section 37 acting as a mounting bar and can introduce its front edge first, through the revision opening located on the interior side, in the mounting space 12 formed by the old-fashioned roller shutter box located in the masonry 11. When the two fixing bolts 32, 35 have passed through said revision opening, the mounting unit formed by the side portion module 3 can be rotated and thus reaches the position which is shown in Figure 5 and in which the unwinding strip 37 is pushed downwards by the assembler so that the two fixing bolts 32, 35 engage in the chambers 23 on the two sections 2 of the lateral slides. In the case of a corresponding positive engagement, the side portion module 3 can be fixed only by it on the window frame 1. A screwing with the profiles 2 of the slides is also possible.

Then, as illustrated in FIG. 6, the two lateral parts 31, 34 are raised and fixed in this recessed position by introducing a stop bolt referenced 36d into an opening which passes through both the hinge wings 36b of the lateral portion that the hinge wings 36c of the fixing foot, hinge 36 or 33 made around a hinge bolt 36a as hinge axis.

When the side portion module 3 has been mounted on the window frame 1 and its side portions 31, 34 have been stopped in the embedding position, a circumferential segment can be passed as shown in FIG. upper 4 of the insulating wall or envelope surrounding the winding shaft on its circumference, through said revision opening and introduce it, or introduce it by rotating in the channels 39 provided for this purpose on the two lateral parts 31, 34 and extending concentrically to the axis of the winding shaft. Said upper circumferential segment 4 consists essentially of a layer of non-deformable heat-insulating material, in the embodiment of a Neopor® layer of a thickness of substantially 3 cm, and comprises only, apart from that, , again a terminal profile 41 which, in the mounted position, as illustrated in FIG. 8, is supported by its front edge on the wall of the shutter box integrated in the masonry and comprises for this purpose a terminal bar, visible on Figure 7, which can be made in a flexible foam for example. The next step is to set up said winding shaft 6, through the revision opening, into said mounting space 12 and to hook it onto the side portions 31, 34. Finally, the side portions comprise central recesses 38 which, for example, may have the shape shown consisting of an inner circle and two outer arcuate segments. By against the winding shaft 6 has at its two ends two fitted parts 61, 62 which fit in said recesses 38. If the winding shaft 6 is of the telescopic type, it can be brought, by its two end pieces 61, 62, against the masonry 11 and be fixed at the same time by the side portions 31, 34 or the recesses 38 in the circumferential direction. This position is illustrated in FIG. 10. FIG. 10 further shows how another so-called lower circumferential segment 5 is then inserted through said revision opening into the mounting space 12 and stuck therein by a movement in the direction of the arrow, between said upper circumferential segment 4 and said unwinding section 37, said lower circumferential segment 5, as shown in FIG. 11, being joined end-to-end to the radial end face of the upper circumferential segment 4 and can be glued there for example. By cons, at the lower face, it is supported by its outer circumference on the unwinding strip 37 and is thus maintained in position. If necessary, the joint between the lower circumferential segment 5 and the unwinding section may be closed with an adhesive tape or filled with silicone.

Variations and modifications of the illustrated embodiment are possible without departing from the scope of the invention.

Thus, it would be conceivable, for example, instead of making said circumferential envelope of the rolling shutter renovation two crescent-shaped segments made of a heat-resistant material dimensionally stable, to implement an envelope such as that described in the model d German utility DE 20 2008 007 039.2 (wedge-shaped slit insulation mat).

Claims (10)

REVENDICATIONS1. Side-section module (3) for a shutter-type shutter, comprising at least one lateral part (31, 34) comprising supports (38, 39) arranged to support the longitudinal end of a winding shaft (6), directed towards the side portion (31, 34), and an envelope (4, 5) which surrounds, at least in sections, said winding shaft (6) circumferentially, and a foot fastening device (32, 35, 37) for fixing said lateral part (31, 34) on a window, characterized in that said lateral part (31, 34) is connected to said fixing foot (32, 35, 37) by the hinge (33, 36) so that the lateral portion is movable between a mounting position in which it is retracted towards said fixing foot (32, 35, 37) and a fitting position in which it is raised and spaced apart from the fixing foot (32, 35, 37). 15 2. Side portion module according to claim 1, characterized in that said fixing foot (32; 35, 37) comprises at least one fixing bolt (32; 35) arranged to be introduced into a chamber (23) of a slide profile (2) mounted on the window. 20 3. Side portion module according to claim 1 or 2, characterized in that said hinge (33, 36) comprises respectively at least one hinge wing (36b) located on the lateral side and at least one hinge wing ( 36c) located on the side of the attachment foot, which are hinged together by a hinge bolt (36a), said hinge (33, 36) further comprising a stopper (36d) through which the lateral portion can being fixed in its raised recess position, said stopping device (36d) being preferably made as a stop bolt (36d) which, in the raised recess position, can be inserted into a piercing hole said hinge wing (36b) of the lateral part and said hinge wing (36c) of the foot, preferably parallel to the axis of the hinge, and / or being provided in the form of a stop nose is projecting downward from said wing of 2952116 -17 - Hinge of the side part, and an associated stop notch formed in the surface showing upwards, the hinge wing of the foot. Lateral side module according to claim 1, 2 or 3, characterized in that it comprises two lateral parts (31, 34), facing each other, made in a mirror-symmetrical manner and which are each connected to the fixing foot ( 32, 35, 37) by a hinge (33, 36), said fixing foot (32, 35, 37) having a flow profile (37) at the longitudinal ends of which are located the two hinges (33, 36). Lateral side module according to claim 4, characterized in that it is pre-assembled as a one-piece mounting unit, said fixing foot (32, 35, 37) preferably having two fixing bolts (32, 35) mounted on the longitudinal ends of said unwinding section (37). 15 6. Side portion module according to any one of the preceding claims, characterized in that said lateral portions (31, 34) comprise concentric projections in the form of a cylinder segment, in particular projections arranged respectively in pairs and arranged to define between them an insertion channel (39) arranged to form a support (39) for said envelope (4, 5), the two projections in the form of a cylinder segment being interconnected by a spacer defining a stop for the envelope inserted. 25 7. Bay shutter type roller shutter comprising an apron formed on a winding shaft (6) and arranged to be lowered and reassembled in front of a building opening, and an enclosure (3, 4, 5) for the shaft of winding, arranged to be fixed to a window and having two end side portions (31, 34) on which said winding shaft (6) is supported, and a casing (4, 5) which surrounds, at less in sections, said circumferentially-wound shaft, characterized in that said side portions (31,34) are each or both of a side-section module according to any one of the claims preceding. Roller shutter according to claim 7, characterized in that said winding shaft housing (3, 4, 5) is composed of a kit which is dimensioned and designed so that it can be mounted when the window ( 1) is mounted in an old building roller shutter box (12) which exists above the window in a building wall (11) and which is accessible via a revision opening having a free width of substantially between 10 et15cm. 9. Roller shutter according to claim 7 or 8, characterized in that at least the envelope (4, 5) of the enclosure (3, 4, 5) of the winding shaft is made as thermal insulation of a winding shaft space (7) surrounded by it and thermally communicating via a passage opening for the deck with a building exterior, with respect to the thermally communicating mounting space (12) via the Revision opening with a building interior. 10. Roller shutter according to claim 9, characterized in that said casing comprises an upper circumferential segment (4), preferably in the form of a cylinder segment, and a lower circumferential segment (5), preferably in the form of a cylinder segment. , which each comprise a layer of heat-insulating material, such as a PU foam or preferably Neopor®, the upper circumferential segment (4) having an outwardly facing end surface (42) by which it is joined to a wall of the mounting space (12) facing inwards, the lower circumferential segment (5) being joined end-to-end to the upper arc segment (4), and the circumferential segments (4, 5) preferably being composed a layer of non-deformable heat-insulating material, at least with the exception of a terminal element (41) having the end surface (42) facing outwards.