Roller shutter tube holder, protective device, especially for roller shutters, and corresponding installation procedure

Description

[0001] The present invention relates to a roller shutter tube support, a protective installation comprising such a support and a method for assembling such a support.

[0002] In buildings whose exterior walls have openings for joinery such as a door or window, these openings are generally equipped with a protective system, for example against intrusions, with a screen such as a roller shutter, or a solar protection system, with for example a screen such as a solar canvas, a roller shutter, a slatted blind or an adjustable sunshade, also called "BSO", or even an insect protection system, with a mosquito net.

[0003] Generally, the protective screen is attached to a tube, which is housed in a recess created at the top of an opening. For example, this recess may be defined by the roller shutter housing or directly within the wall, such as in a lintel. The tube has two end bearings, each supported by a flange, allowing the tube to pivot relative to the flanges around a winding axis.

[0004] Each end plate is typically supported by a bracket, which is attached to other components of the protective system. Specifically, each bracket is usually fitted into its respective guide rail for the protective screen. A guide flange for the curtain is provided at each guide rail to guide the curtain within the corresponding rail. Each flange is typically clipped onto the end plate. Together with its corresponding flange, each end plate forms a support for the roller shutter.

[0005] FR-3 115 809-A1 describes, for example, a tube support comprising a flange, a lug, and a tulip-shaped fitting. The flange includes a spring tab cut into the flange body and pins attached to the flange body, while the lug includes notches that complement the pins. The flange assembly to the lug is locked by the spring tab. During assembly, the force required to push back the spring tab is generally significant. Furthermore, to secure the assembly, an additional step is required: the installer deforms the tab using a tool, which requires considerable force. EP 2 314 820 A1 describes another tube support comprising a flange, a lug, and a tulip-shaped fitting.

[0006] It is these problems that the invention aims to address in particular, by proposing a tube support that is easier to assemble, especially without requiring significant effort.

[0007] For this purpose, the invention relates to a support, configured to support a winding tube of a roller shutter installation.

[0008] According to the invention, the support comprises: a flange, which has a front face extending orthogonally to a winding axis, and a rear face opposite the front face, the flange comprising: a recess configured to receive an end bearing of the winding tube, and an attachment portion; a lug, which includes: a fixing tenon, which has a flattened and elongated shape, the tenon extending in a tenon plane along a fixing axis and being configured to be fixed to the attachment portion of the flange; and a fitting, which has an elongated and flattened shape extending in a fitting plane along a fitting axis, the fitting being configured to be fixed to a wall, the fitting having a free end and a captive end, which is opposite the free end and which is connected to the tenon; a tulip, which provides a channel for inserting the fitting and which includes a first elastic clip configured to cooperate, in particular by complementary form,with a first opening made in the fitting, so as to fix the tulip to the fitting when the fitting is fitted into the conduit, the tulip and the tab fixed to the tulip together forming a first sub-assembly in a fitted configuration, in which: The attachment portion includes a bottom wall, which is set back from the front face and connected to the rest of the attachment portion by two side walls, the side walls being substantially parallel to an insertion direction of the attachment portion and defining between them a passage for the tenon; the attachment portion includes an opening, which is cut into the flange and which defines a front side of the bottom wall, the passage opening from the rear face through the opening; the tenon is configured to be inserted into the passage by an insertion movement, the insertion movement being a translational movement parallel to the insertion direction, the fixing axis being aligned with the insertion direction, so that one end of the tenon, passing through the opening, is supported against the rear face of the flange, when the fitting is inserted into the channel, forming the first sub-assembly,and that the tenon is inserted into the passage, the movements of the first sub-assembly relative to the flange are limited to a translation parallel to the insertion direction; the tulip includes a second elastic clip, which is configured to cooperate with a second orifice provided on the flange when the first sub-assembly is in the press-fit configuration, so as to prevent translational movements of the first sub-assembly relative to the flange parallel to the insertion direction, the support being in an assembled configuration when the second elastic clip cooperates with the second orifice.

[0009] Thanks to the invention, assembling the support is particularly easy and quick, requiring no special effort, as the support parts are held together by means of the first and second clips on the tulip-shaped bracket. The effort required corresponds to the deformation of the elastic clips, and this effort is minimal and hardly noticeable.

[0010] According to advantageous but not mandatory aspects of the invention, such a support may incorporate one or more of the following features taken individually or in any technically permissible combination: The leg is in an assembled position relative to the flange when the bracket is in the assembled configuration. The flange includes a stop, which is configured to bear against the leg so as to limit the insertion movement of the tenon into the passage. The leg is supported against the stop when the leg is in the assembled position relative to the flange. The second clip is configured to prevent translational movement of the first subassembly relative to the flange in a direction opposite to the insertion direction. The tenon plane and the fitting plane are coplanar with each other, the tenon and fitting forming a bend. The fixing axis is inclined relative to the fitting axis, while the stop is provided so as to bear against an inner edge of the fitting, on an inner side of the bend. The tulip comprises an outer wall and an inner wall.which are arranged opposite each other and connected to each other by a base, the inner wall, the outer wall, and the base being configured to guide an edge of a screen 24 of the roller shutter installation on a front side of the base, while the tulip also includes a second wall, which is arranged opposite a rear side of the base, the rear side being oriented opposite to the front side, the second wall and the base together defining the tulip's conduit and being connected to each other by guides, the guides being configured to guide the fitting inserted into the conduit, so that the fitting is held at a distance opposite the second wall, creating a gap, and the gap is configured so that, when the support is in the assembled configuration: a portion of the base wall of the attachment portion is received in the gap, the front face of the flange is supported against the back side of the tulip base.

[0011] The invention also relates to a sub-assembly of the assembly, comprising: two tube supports, at least one of the supports being as defined previously, and a winding tube with two end bearings, each of the bearings being supported by a respective flange, the tube being mounted pivotally relative to the flanges.

[0012] The invention also relates to a protective installation, in particular a roller shutter, comprising: a mounting subassembly as defined above, a protective screen, in particular a roller shutter screen, which is attached to the winding tube and is configured to wind around or unwind from the tube, depending on the rotational movements of the tube, in which the supports are attached to a wall and are located above an opening made in that wall.

[0013] In another aspect, the invention relates to a method for assembling a flange as described above, the assembly method comprising the successive steps of: a) Fit the fitting into the tulip channel until the first elastic clip cooperates with the first hole made on the fitting, so as to form the first sub-assembly, b) then, insert the tenon into the passage according to the insertion direction, until the second elastic clip cooperates with the second hole made on the flange, so as to form the support.

[0014] The invention will be better understood, and other advantages thereof will become more apparent in the light of the following description of an embodiment of a roller shutter flange, a roller shutter installation, and an assembly method, conforming to its principle, given solely by way of example and with reference to the accompanying drawings, in which: [ Fig 1 ] there figure 1 is a perspective view of a roller shutter installation according to the invention, the roller shutter installation comprising a mounting subassembly, which includes a winding tube supported by two brackets; Fig 2 ] there figure 2 represents, on two inserts a) and b), a detail IIa) of the assembly sub-assembly of the figure 1 observed from two different viewpoints, with some parts hidden; Fig 3 ] there figure 3 is a partially exploded perspective view of the subset of the figure 2 , some parts being hidden; Fig 4 ] there figure 4 represents, on three inserts a), b) and c), a support for the mounting sub-assembly of the figure 2 , the support being represented, respectively, in exploded perspective from two different viewpoints, and in a first intermediate configuration; Fig 5 ] there figure 5 represents in perspective, on two inserts a) and b), the support of the figure 3 , the support being represented respectively in the first intermediate configuration, with some parts hidden, and in an assembled configuration, and [ Fig 6 ] there figure 6 represents respectively, on two inserts a) and b), two sections, along two parallel planes Via and Vlb to the figure 5 , of the assembly sub-assembly of the figure 3 in assembled configuration.

[0015] A protection installation 10 is schematically represented on the figure 1 Installation 10 is an intrusion protection system, which includes a roller shutter. Therefore, this protection system is a roller shutter installation.

[0016] The installation 10 is fixed to a wall 12, assumed to be flat and vertical, in which an opening 14 is provided, passing through the wall 12. The opening 14 is covered by a protective screen 24, which belongs to the protective installation 10. The protective screen 24 is here a roller shutter curtain. As non-limiting alternatives, the screen 24 is a solar shade, or even a mosquito net, etc.

[0017] Installation 10 includes a box 18, which is schematically represented using dashed lines. The box 18 is fixed to the wall 12, above the opening 14. The box 18 has an elongated, generally parallelepiped shape and extends along its length along a box axis A18. The box axis A18 is assumed to be horizontal. The description is based on the orientation of the components of installation 10 as shown in the drawings, although this may differ in reality. Installation 10 has a generally symmetrical structure with respect to a transverse plane T18 of the installation, the transverse plane T18 being orthogonal to the box axis A18.

[0018] The box 18 provides a receiving volume V18 for other parts of the installation 10, as described below. By way of non-limiting example, the box 18 is made from an assembly of boards.

[0019] According to a first alternative (not shown), the receiving volume V18 is partially delimited by wall 12, for example, within wall 12, specifically within a lintel that defines the upper part of opening 14. This configuration corresponds to a so-called "half-lintel" mounting. According to a second alternative (not shown), the receiving volume V18 is essentially contained within the lintel, according to a so-called "lintel" mounting configuration. These alternatives are not exhaustive.

[0020] The installation 10 comprises a tube 20, which in this case is a winding tube for the screen 24, and two brackets 30, which are fixed to the wall 12 and configured to support the tube 20. The two brackets 30 are arranged symmetrically with respect to the transverse plane T18 of the installation 10, the two brackets 30 having an overall symmetrical structure with respect to each other. What is true for one of the two brackets 30 is transposable to the other bracket 30.

[0021] The tube 20 comprises two opposite ends, each of which is equipped with an end bearing 22. Each of the end bearings 22 is supported by a respective support 30, so that the tube 20 is pivotally mounted relative to the supports 30, around the trunk axis A18.

[0022] Each of the supports 30 respectively supports one of the end bearings 22 of the winding tube 20, so that the tube 20 is pivotally mounted relative to the supports 30 around the winding axis A18. The two supports 30 assembled to the tube 20 together form a mounting sub-assembly 40 of the installation 10.

[0023] An upper end 25A of the screen 24 is attached to the tube 20, here by means of two locks 26 belonging to the installation 10. It is understood that according to the direction of rotation of the tube 20 around the trunk axis A18, the screen 24 winds around the tube 20, or unwinds, a lower end 25B of the screen 24 rising or falling in front of the opening 14. By extension, the trunk axis A18 is also a winding axis of the tube 20.

[0024] The rotation of tube 20 is controlled by a user via a drive device. The drive device is not shown. Depending on the configuration, the drive device is either manual, for example with a crank and gear system or with a belt drive, or motorized, with an electric motor. In the case of a motorized drive device, part of the motor is usually housed within tube 20, while a pivoting head of the motor protrudes from the tube and forms one of the tube's bearings.

[0025] Each support 30 is secured to the wall 12, that is, fixed to the wall 12, either directly or via another element of the installation 10. In the illustrated example, each support 30 is fixed to a respective track 32, the track 32 being fixed to the wall 12. The installation 10 thus comprises two tracks 32, which are located opposite each other, symmetrically with respect to the transverse plane T18. Each track 32 extends vertically along one side of the opening 14, the two tracks 32 serving to guide the screen 24, particularly during the raising or lowering movements of the lower end 25B of the screen 24.

[0026] In the illustrated example, each bearing 22 comprises a star-shaped part, which is received in a complementary recess formed in the support 30. Each bearing 22 thus received in the complementary recess is prevented from rotating, relative to the support 30, around the winding axis A18. The shape of the bearing 22 is not limiting as long as the bearing 22 is prevented from rotating when it is in the recess 312.

[0027] In the illustrated example, the star-shaped recess 312 receives the bearing 22 of the winding tube 20. Naturally, the flange 300 is configured to receive any type of part with a shape compatible with the recess 312, including an adapter piece, as described in published application FR3118479 (A1).

[0028] Support 30 shown on the right of the figure 1 is also shown on a larger scale, with the associated slide 32 and end bearing 22, on the figure 2 The rest of the description is made with reference to this support 30.

[0029] Each support 30 includes a leg 100, a tulip 200 and a flange 300.

[0030] The lug 100 is here formed from a metal plate, preferably steel. The lug 100 is, for example, manufactured by cutting. In reference to the figure 4 The leg 100 includes a fixing tenon 102, by which the leg 100 is configured to be assembled to the flange 300, and a fitting 104, by which the leg 100 is configured to be fixed to the wall 12. The fitting 104 having a free end 105, which here has a tapered shape, and a captive end, which is opposite the free end 105 and which is connected to the tenon 102. In the illustrated example, the legs 100 are fixed to the wall 12 by means of the slides 32, the fitting 104 of each leg 100 being fixed to a respective slide 32, which is fixed to the wall 12.

[0031] The tenon 102 has a flattened and elongated shape, extending in a tenon plane P102 along a fixing axis A102. The fitting 104 has an elongated and flattened shape extending in a fitting plane P104 along a fitting axis A104.

[0032] With reference to figures 2 And 3 The tulip 200 comprises an outer wall 202A and an inner wall 202B, which are arranged opposite each other and connected by a base 202C. The outer wall 202A and the inner wall 202B diverge from each other, hence the name "tulip". The outer wall 202A, the inner wall 202B, and the base 202C are configured to guide an edge of the protective screen 24 along one front side of the base 202C, so as to limit friction between the screen 24 and the corresponding slide 32.

[0033] The tulip 200 provides a conduit 204 for the fitting of the fitting 104, in particular for fitting the free end 104 of the fitting 104. The tulip 200 includes a first elastic clip 206 configured to cooperate, in particular by complementary shape, with a first orifice 106 provided in the fitting 104, so as to fix the tulip 200 to the fitting 104 when the fitting 104 is fitted into the conduit 204, in a fitted position of the tab 100 relative to the tulip 200. When the fitting 104 is in the fitted position in the conduit 204, the tulip 200 and the tab 100 together form a first sub-assembly 50, which is then in a so-called "fitted" configuration.

[0034] The flange 300 has a front face 302A, which is generally flat and extends orthogonally to the winding axis A18, and a rear face 302B opposite the front face 302A. The flange 300 includes a mounting portion 310, which has a recess 312 configured to receive one of the end bearings 22 of the winding tube 20. The front face 302A faces the tube 20 when the tube 20 is assembled to the support 30.

[0035] The flange 300 also includes a peripheral portion 350, which is configured to be secured to the rest of the roller shutter installation 10 and in which a slot 352 is provided for receiving the fixing portion 310. The slot 352, which here has an oblong hole shape, comprises two opposing straight edges 352A and 352B that are parallel to an adjustment axis A352. The shape of the slot 352 is not limiting.

[0036] The fixing portion 310 is configured to be assembled to the peripheral portion 350 by being received in the slot 352 in an assembled configuration of the flange 300. The fixing portion 310 is made of synthetic polymer material and is preferably produced by hot injection molding. The peripheral portion 350 is made of a metal plate, preferably steel, and is produced in particular by stamping and / or deep drawing.

[0037] As described later, the fixing portion 310 is advantageously adjustable in position relative to the peripheral portion 350 along the adjustment axis A352. It is thus possible to adjust the position of the tube 20 relative to the supports 30, during the assembly of the installation 10, in particular according to the size of the screen 24.

[0038] In the illustrated example, the fixing portion 310 includes a wall 314, which defines the footprint 312. The wall 314, and by extension the footprint 312, have a cylindrical shape centered on the winding axis A18, the wall 314 delimiting an internal volume V312 which is configured to receive one of the end bearings 22 of the winding tube 20 according to an insertion movement F312 of the bearing 22 into the footprint 312. The wall 314 has an internal side, oriented towards the side of the internal volume V312, and an external side, oriented opposite to the internal side.

[0039] The F312 insertion movement, which is represented by an arrow at the figure 3 , is a translational movement parallel to the winding axis A18. The bearing 22 has a shape complementary to the footprint 312, so that the bearing 22 is blocked in rotation relative to the fixing portion 310, and by extension relative to the flange 300, around the winding axis A18.

[0040] Advantageously, the flange 30 incorporates a locking device, which facilitates the assembly of the bearing 22 to the flange 30. Thus, the mounting portion 310 also includes an opening 380, which is formed through the wall and leads into the internal volume. In the illustrated example, the mounting portion 310 comprises three openings 316, which are evenly distributed around the winding axis A18.

[0041] The flange 300 also includes a locking piece 380, which here generally has a ring shape 382 with a control tab 384. The control tab 384 is connected to the ring 382 and is configured to be operated by an installer, so as to control the movements of the locking piece 380.

[0042] The ring 382 is arranged on an external side of the wall 314 and cooperates with the wall 314, in particular by sliding surfaces, so that the ring 382 is guided in rotation relative to the fixing portion 310 around the winding axis A18.

[0043] The locking piece 380 includes at least one protrusion 386, which is formed in projection on the ring 382 and which extends from the ring 382 centrifugally to the winding axis A18. Each protrusion 386 is associated with a respective opening 316.

[0044] The locking piece 380 is movable relative to the fixing portion 310 between a locking position, in which each protrusion 386 of the locking piece 380 protrudes from the associated opening 316 in the internal volume V312 of the impression 312, and a withdrawn position, in which each protrusion 386 does not protrude into the internal volume V312 of the impression 312.

[0045] Each protrusion 386 is configured to be received in a complementary recess 22A, formed in the bearing 22, so as to prevent translational movement of the bearing 22 relative to the mounting portion when the bearing is received in the recess and the locking piece is in the locked position. Each protrusion 386 thus forms a locking portion of the locking piece 380.

[0046] The protrusions 386 are tooth-shaped, while the complementary recesses 22A are groove-shaped. These shapes are not exhaustive. In the illustrated example, each opening 316 is formed in a plane transverse to the winding axis A18.

[0047] In the illustrated example, the ring 382 is guided in rotation relative to the fixing piece 310, so the locking and retraction positions are angular positions of the ring 382 relative to the fixing portion 310 around the winding axis A18. The control tab 384 thus allows the locking piece 380 to be moved between its retracted position and its locking position.

[0048] The flange 300 advantageously includes markings 304, for example pictograms and / or alphanumeric characters, which are arranged so as to indicate to the user, according to an angular position of the control tab 384 around the winding axis A18, whether the locking piece 380 is in either the locked position or the withdrawn position.

[0049] In the illustrated example, the inscriptions 304 are engravings, which are located on the peripheral portion 350 and which here represent a closed padlock and an open padlock.

[0050] The mounting portion 310 and the peripheral portion 350 each comprise a front face, which together form the front face 302A of the flange 300 when the mounting portion 310 is assembled to the peripheral portion 350, as shown in figure 2 , where the 300 flange is in a so-called "engaged" configuration.

[0051] The flange 300 includes stop means, which are provided in at least one of the elements selected from the peripheral portion 350 and the fixing portion 310. The stop means are configured to limit the relative movements of the fixing portion 310 with respect to the peripheral portion 350 to translational movements along the mounting axis A352 when the stop means are in an engaged configuration, the flange then being in the engaged configuration.

[0052] In the illustrated example, the stop means include a peripheral rim 354, which is formed on the peripheral portion 350 at the edge of the opening 352. The peripheral rim 354 includes two straight segments 354A and 354B, each of which is set back from the front face of the peripheral portion 350 and which form the straight edges 352A and 352B of the opening 352. The peripheral rim 354 is discontinuous here, so as not to generate movements of the tongue 384.

[0053] The stop means also include two complementary segments 332A and 332B, which are formed on the mounting portion 310. Each complementary segment 332A or 332B is configured to cooperate, particularly through complementary shapes, so as to slide against a respective straight segment 354A or 354B when the flange 30 is in the engaged configuration. Advantageously, when the flange 300 is in the engaged configuration, the front face of the mounting portion 310 is coplanar with the front face of the peripheral portion 350. This avoids the risk of interference with the screen 24 during the use of the installation 10. The arrangement and shape of the stop means are not limiting.

[0054] The flange 300 also includes adjustment means. The stop means and the adjustment means are configured so that, when the fixing portion 310 is assembled to the peripheral portion 350, the fixing portion 310 is adjustable in position relative to the peripheral portion 350 along the adjustment axis A352.

[0055] In the illustrated example, the adjustment means include notches 356, which are regularly spaced along at least one of the straight edges 352A or 352B of the opening 352, the notches 356 along the same edge forming a row 358 of notches. In the illustrated example, notches 356 are provided along each of the straight edges 352A and 352B, the peripheral portion thus comprising two rows 358 of notches 356. The notches 356 here have a rectangular profile and are provided by notches cut into the straight segments 354A and 354B. Two successive notches 356 are thus separated by a notch, a step between two successive notches 354 being equal to a length, measured parallel to the adjustment axis A352, of one notch and one notch.

[0056] The adjustment means also include teeth 336, which are formed on the mounting portion 310 and are configured to cooperate, by complementary shape, with a portion of the notches 356, so as to prevent translational movement of the mounting portion 310 relative to the peripheral portion 350 along the adjustment axis A352 when the flange is in the engaged configuration. The teeth 336 are then engaged in some of the notches 356. By extension, the adjustment means are also said to be in an engaged configuration.

[0057] The teeth 336 here each have a profile corresponding to the notches between two successive notches 356. Preferably, the teeth 336 have the same profile as the notches 356. In the illustrated example, several teeth 336 are provided along each straight segment 332A and 332B of the fastening portion 310, forming rows 338 of teeth 336.

[0058] Thus, during the assembly of the flange 300, the position of the fixing portion 310 relative to the peripheral portion 350 along the adjustment axis A352 is adjustable incrementally, according to an adjustment step corresponding to the step between two successive notches 356. The adjustment step depends on the shape of the notches 356 and the teeth 336, which allows for finer adjustment compared to devices known in the prior art, in particular an adjustment independent of the size of the recess 312, which accommodates the bearing 22. In the illustrated example, the step between two successive notches 356 is equal to 10 mm, compared to a diameter of the star-shaped bearing 22 of approximately 60 mm. Each row 358 of notches 356 here has five notches, while each row 338 of teeth 336 here has three teeth 336. It is thus possible to choose between three different positions.

[0059] Advantageously, markings are provided on the flange 300, so as to indicate to the installer the position in which he must assemble the fixing portion 310 and the peripheral portion 350. The markings are not shown.

[0060] More generally, it is understood that the position adjustment of the fixing portion 310 relative to the peripheral portion 350 is possible with a single row 358 of notches 356. The configuration with two rows 358 of notches is however preferred because it allows better absorption of the forces transmitted during the use of the installation 10, which reduces the risks of accidental breakage of the fixing part 310.

[0061] We now detail support 30, with reference to figures 4 à 6 .

[0062] The tenon plane P102 and the fitting plane P104 are coplanar with each other, the tenon 102 and the fitting 104 forming a bend. In other words, the fixing axis A102 is inclined relative to the fitting axis A104 at an angle α100°. The angle α100° is zero when the fixing axis A102 is aligned with the fitting axis A104. In the context of the invention, the angle α100° is non-zero. Typically, the angle α100° is between 10° and 90°, preferably between 20° and 70°, and even more preferably between 30° and 60°. In the illustrated example, the angle α100° is 45°. The fitting 104 includes an inner edge 108, which is located on an inner side of the elbow formed by the tenon 102 and the fitting 104.

[0063] The flange 300 comprises, in addition to the fixing portion 310, an attachment portion 390, by which the flange 300 is configured to be fixed to the tenon 102. In the illustrated example, the flange comprises the peripheral portion 350 and the fixing portion 310, the attachment portion 390 being here a part of the peripheral portion 350. Of course, the principles of the invention are transposable to other flange structures.

[0064] The attachment portion 390 includes a bottom wall 392, which is set back from the front face 302A of the flange 300 and is connected to the rest of the attachment portion 390 by two side walls 394A and 394B. The two side walls 394A and 394B are substantially parallel to each other, are arranged opposite each other, and together with the bottom wall 392, they define a passage 396 for the tenon 102. The two side walls 394A and 394B define an insertion direction A396 of the attachment portion 390.

[0065] The tulip 200 comprises, in addition to the first clip 206 for assembly to the fitting 104, a second clip 210, which is configured to cooperate with a second orifice 398 provided on the flange 300, so as to prevent translational movements of the first sub-assembly 50 relative to the flange 300 parallel to the insertion direction A396, when the tenon 102 is received in the passage 396. The support 30 is then in an assembled configuration, as shown in the figure 5a ).

[0066] In the illustrated example, the second clip 210 includes an elongated elastic tab 212, which is connected at one end to the rest of the tulip 200 and which includes, at the other end, a bulge 214, which here has a cylindrical shape with a circular cross-section and a bevel 216. The second orifice 398 has a shape complementary to the second clip 210, namely a cylindrical shape, configured to receive the bulge 214. The bevel 214 allows the tab 212 to be elastically deformed during the assembly of the first sub-assembly 410 to the flange 300.

[0067] Assembling support 30 is therefore particularly easy and quick to implement, and requires no special effort. For example, an assembly process for support 30 comprises the following successive steps: a) fit the fitting 104 into the channel 204 of the tulip 200 until the first elastic clip 206 cooperates with the first orifice 106 provided on the fitting 104, so as to form the first sub-assembly 410, b) then, insert the tenon 102 into the passage 396 according to the insertion direction A396, until the second elastic clip 210 cooperates with the second orifice 398 provided on the flange 300, so as to form the support 30.

[0068] With reference to the figure 5 a ), the tulip 200 advantageously includes a second wall 220, which is arranged opposite the bottom 202C of the tulip 200, on a rear side of the bottom 202C, the rear side being oriented opposite to the front side. The second wall 220 and the bottom 202C together define the conduit 204 of the tulip 200. The second wall 220 and the bottom 202C are connected to each other by guides 222, which are configured to guide the fitting 104 inserted into the conduit 204, so that the fitting 104 is held at a distance from the second wall 220, creating a gap 224 between the fitting 104 and the second wall 220. The gap 224 is therefore a portion of the conduit 204. The guides 222 are parallelepiped in shape. When the fitting 104 is inserted into the conduit 204, the fitting 104 is guided by the guides 222, the parallel movement of the fitting 104 being a translational movement.

[0069] As illustrated in the figure 6a ), the gap 224 is configured so that, when the support is in assembled configuration, a part of the bottom wall 392 of the attachment portion 390 is received in the gap 224, while the front face 302A of the flange 300 is supported against the rear side of the bottom of the tulip.

[0070] The attachment portion 380 includes an opening 400, which is cut into the flange 300 and which delimits a front side 392A of the bottom wall 392, the passage 386 opening from the side of the rear face 302B of the flange 300 through the opening 400. The opening 400 is here a slot, which extends orthogonally to the insertion direction A396.

[0071] The flange 300 includes a stop, which is configured to bear against the lug 100 so as to limit the insertion movement of the tenon 102 in the passage 396, the lug 100 being in contact with the stop when the lug 100 is in the assembled position relative to the flange 300.

[0072] In the illustrated example, the stop is formed by a third wall 394C, which extends one of the two lateral walls 394A and 394B connecting the bottom wall 392 to the rest of the attachment portion 390. The third wall 394C, and by extension the stop, is provided so as to bear against the inner edge 108 of the fitting, on an inner side of the elbow formed by the fitting 104 and the tenon 102.

[0073] The second clip 210 is configured to cooperate with the second orifice 380 when the tab 100 is abutted against the third wall 394C. When the bracket 30 is used in an installation 10, as illustrated in the figure 1 , gravity tends to keep leg 100 against the third wall 394C.

[0074] In an alternative not shown, the stop is provided differently, for example the stop is formed on the opposite side to the bottom wall 312 with respect to the opening 400, so that a free end of the tenon 102 comes to rest against the stop, limiting the insertion movement of the tenon 102 in the passage 396.

[0075] In the illustrated example, the bottom wall 392 is formed in one piece by cutting and deforming a metal plate. The bottom wall 362 thus forms a continuous surface against which the tenon rests. It is clear that, without the tulip 200, the lug 100 is not perfectly guided in translation along the insertion direction A396. For example, if one end of the tenon is inserted into the opening 400, it is possible to rotate the fixing tab 100 relative to the flange 300, around an axis substantially aligned with the front edge 392A of the bottom wall 392. The tulip 200, assembled to the tab 100 to form the first sub-assembly 410, prevents this rotational movement, limiting the movements of the tab 100 relative to the flange 200 to a translational movement along the insertion direction A396.

[0076] In an alternative not shown, the bottom wall 392 is made in several parts, for example, in two parts, which are cut during the manufacture of the flange 300. The two parts of the bottom wall, set back from the front face 302A of the flange 300, are separated by a material bridge that remains aligned with the front face 302A of the flange. The bottom wall 392 and the material bridge define the passage 396, so that when the tenon is inserted into the passage, the tenon is guided in translation along the insertion direction A396. The bulk of the mechanical stresses, in particular the torsional stresses of the lug 100 inserted in the passage 396, is thus taken up by the flange 300 and the lug 100, which are here metal parts, while the second clip 210 of the tulip 200 serves essentially to secure the assembly of the lug 100 and the flange 300.

[0077] In the illustrated example, the roller shutter installation 10 comprises two flanges 300, the peripheral portions 350 of these two flanges 300 being symmetrical with respect to each other. Therefore, two types of flanges 300 are required to assemble the two supports 30 of the protective installation 10.

[0078] In an alternative not shown, each flange 300 has a symmetrical shape with respect to a plane orthogonal to the adjustment axis A352, in particular includes two attachment portions 390 each providing a passage 396 for receiving a tenon 102. Flanges 300 of the same type can thus be used to assemble the two supports 30 of the protective installation 10, which reduces the number of different spare parts.

[0079] The embodiments and variants mentioned above can be combined to generate new embodiments of the invention.

Claims

1. A support (30) for a tube (20), configured to support a winding tube (20) of a roller shutter installation (10), the support (30) comprising: - a flange (300), which has a front face (302A) extending orthogonally to a winding axis (A18), and a rear face (302B) opposite the front face, the flange (300) comprising: • an indentation (312) configured to receive an end bearing (22) of the winding tube (20), and • an attachment portion (390), - a lug (100), which comprises: • a fastening tenon (102), which has a flattened and elongated shape, the tenon (102) extending in a tenon plane (P102) along a fastening axis (A102) and being configured to be fastened to the attachment portion (390) of the flange (300), and • a fitting (104), which has an elongate and flattened shape extending in a fitting plane (P104) along a fitting axis (A104), the fitting (104) being configured to be secured to a wall (12), the fitting (104) having a free end (105) and a captive end, which is opposite the free end and is connected to the tenon (102), - a tulip (200), which provides a duct (204) for inserting the fitting (104) and which comprises a first resilient clip (206) configured to cooperate, in particular by shape mating, with a first orifice (106) provided in the fitting (104), so as to fasten the tulip (200) to the fitting (104) when the fitting (104) is sleeved into the duct (204), the tulip (200) and the lug (100) fixed to the tulip (200) together forming a first subassembly (410) in an sleeved configuration, in which: - the attachment portion (390) comprises a bottom wall (392), which is set back from the front face (302A) and which is connected to the rest of the attachment portion (390) by two side walls (394A, 394B), the side walls being substantially parallel to a direction of insertion (A396) of the attachment portion (390) and delimiting between them a passage (396) for the tenon (102), - the attachment portion (390) comprises an opening (400), which is cut out in the flange (300) and which defines a front side of the bottom wall (392), the passage (396) opening out on the side of the rear face (302B) through the opening (400), - the tenon (102) is configured so as to be inserted into the passage (396) according to an insertion movement, the insertion movement being a translational movement parallel to the insertion direction (A396), the fastening axis (A102) being aligned with the insertion direction, so that one end of the tenon (102), passing through the opening (400), bears against the rear face (302B) of the flange (300), - when the fitting (104) is sleeved into the duct (204), forming the first sub-assembly (410), and the tenon (102) is inserted into the passage (396), the movements of the first sub-assembly (410) relative to the flange (300) are limited to a translation parallel to the direction of insertion (A396), - the tulip (200) comprises a second resilient clip (210), which is configured to cooperate with a second orifice (398) provided on the flange (300) when the first sub-assembly (410) is in the sleeved configuration, so as to prevent translational movements of the first sub-assembly (410) relative to the flange (300) parallel to the direction of insertion, the support (30) being in an assembled configuration when the second resilient clip (210) cooperates with the second orifice (398).

2. The support (30) for a tube (20) according to claim 1, wherein: - the lug (100) is in an assembled position relative to the flange (300) when the support (30) is in the assembled configuration, - the flange (300) comprises a stop (394C), which is configured to bear against the lug (100) so as to limit the insertion movement of the tenon (102) in the passage (396), the lug (100) bearing against the stop when the lug (100) is in the assembled position relative to the flange (300), - the second clip (210) is configured to prevent translational movements of the first sub-assembly relative to the flange (300) in a direction opposite to the insertion direction.

3. The support (30) for a tube (20) according to claim 2, wherein: - the tenon plane (P102) and the fitting plane (P104) are coplanar with each other, the tenon (102) and the fitting (104) forming a bend, the fastening axis (A102) being inclined with respect to the fitting axis (A104), - the stop (394C) is arranged so as to bear on an inner edge (108) of the fitting (104), on an inner side of the bend.

4. The support (30) for a tube (20) according to any one of the preceding claims, wherein: - the tulip (200) comprises an outer wall (202B) and an inner wall (202A), which are arranged facing each other and which are connected to each other by a bottom (202C), the inner wall, the outer wall and the bottom being configured to guide an edge of a screen 24 of the roller shutter installation (10) on a front side of the bottom (202C), - the tulip (200) also comprises a second wall (220), which is arranged facing a rear side of the bottom (202C), the rear side being oriented away from the front side, the second wall (220) and the bottom (202C) together delimiting the duct (204) of the tulip (200) and being connected to each other by guides (222), - the guides (222) are configured to guide the fitting (104) sleeved into the duct (204), so that the fitting (104) is held at a distance facing the second wall (220), leaving an interstice (224), - the interstice is configured so that, when the support (30) is in the assembled configuration: • part of the bottom wall (392) of the attachment portion (390) is received in the interstice (224), • the front face (302A) of the flange (300) rests against the rear side of the bottom (202C) of the tulip (200).

5. A mounting sub-assembly (40), comprising - two supports (30) for a tube (20), at least one of the supports conforming to any one of the preceding claims, - a winding tube (20) with two end bearings (22), each of the bearings (22) being supported by a respective flange (300), the tube (20) being mounted so as to pivot relative to the flanges (300).

6. A protective installation (10), in particular a roller shutter installation, comprising: - a mounting sub-assembly (40) according to the preceding claim, - a protective screen (24), in particular a roller shutter screen, which is attached to the winding tube (20) and is configured to wind around the tube (20) or unwind from the tube (20), depending on the rotational movements of the tube (20), in which: - the supports (30) are integral with a wall (12) and are located above an opening (14) made in this wall.

7. A method for assembling a support (30) in accordance with any one of claims 1 to 4, the assembly method comprising the successive steps of: a) sleeving the fitting (104) into the duct (204) of the tulip (200) until the first resilient clip (206) cooperates with the first orifice (106) provided on the fitting (104), so as to form the first sub-assembly (410), b) then insert the tenon (102) into the passage (396) in the direction of insertion (A396), until the second resilient clip (210) cooperates with the second orifice (398) provided on the flange (300), so as to form the support (30).