Roller shutter flange, associated protection installation and assembly method

Abstract

Roller shutter flange, protective installation and associated assembly method This roller shutter flange (300), configured to support a winding tube of a protective installation, comprises a peripheral portion (350), in which is provided a light (352) defining an adjustment axis (A352), and a fixing portion (310), which comprises an imprint (312) configured to receive an end bearing (22) of the tube and which is configured to be assembled to the peripheral portion by being received in the light. The flange comprises notches (356), which are regularly distributed along at least one of the edges of the light (352), and teeth (336), which are provided on the fixing portion (310) and which are configured to cooperate with a part of the notches, so that during assembly of the flange, a position of the fixing portion relative to the peripheral portion along the adjustment axis is incrementally adjustable.Figure for abstract: Figure 3.

Description

Title of the invention: Roller shutter flange, associated protective installation and assembly method

[0001] The present invention relates to a roller shutter flange, a protective installation, in particular for a roller shutter, comprising such a flange and a method of assembling such a flange.

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

[0003] In general, the protective screen is attached to a tube, which is housed in a receiving volume provided in the upper part of an opening. According to non-limiting examples, the receiving volume is delimited by a box of the roller shutter installation, or is provided directly in the wall, for example in a lintel, etc. The tube comprises two end bearings, which are each supported by a flange, so that the tube is pivotally mounted, relative to the flanges, around a winding axis. The flanges are integral with the wall, generally fixed to other elements of the protective installation, in particular each fixed to a respective guide slide of the screen.

[0004] When the protective screen is fully wound around the tube, the size of this winding depends in particular on a diameter of the tube, the nature of the screen and a height of the window. When mounting the protective installation, a position of the winding axis relative to the flanges is adjusted according to the size of the winding, in particular to reduce the friction of the screen against the other parts of the protective installation during the winding or unwinding movements of the screen around the tube.

[0005] FR-2 893 348-A1 describes, for example, a flange comprising three indentations for fixing a bearing of the winding tube. The indentations are of reduced size, which limits the possibilities for mounting the tubes. In particular, this flange is not compatible with motorized winding tubes, which require indentations of larger diameters for the transmission of the motor torque.

[0006] It is these problems that the invention more particularly intends to remedy, by proposing a roller shutter flange which allows fine adjustment of a position of the winding tube relative to the flanges, while being compatible with large bearings, for example motor bearings.

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

[0008] According to the invention: - the flange has a front face which is generally flat and which extends orthogonally to a winding axis, the flange comprising: • a peripheral portion, which is configured to be secured to the rest of the roller shutter installation and in which a light is provided, which comprises two opposite straight edges which are parallel to an adjustment axis, • a fixing portion, which is configured to be assembled to the peripheral portion by being received in the lumen in an assembled configuration of the flange, the fixing portion comprising an imprint, configured to receive an end bearing of the winding tube, • stop means, which are provided in at least one of the elements chosen from the peripheral portion and the fixing portion, the stop means being configured to limit the relative movements of the fixing portion with respect to the peripheral portion to translational movements along the adjustment axis when the stop means are in an engaged configuration, the flange then being in an engaged configuration, - the flange also includes adjustment means, which include: • notches, which are regularly distributed along at least one of the edges light rights, the notches arranged along the same straight edge forming a row of notches, • teeth, which are provided on the fixing portion and which are configured to cooperate, by complementarity of shape, with a part of the notches, so as to prevent translational movements of the fixing portion relative to the peripheral portion along the adjustment axis, the adjustment means then being in an engaged configuration, and - the stop means and the adjustment means are configured so that, when assembling the fixing portion to the peripheral portion, a position of the fixing portion relative to the peripheral portion along the adjustment axis is adjustable incrementally, according to an adjustment step corresponding to a step between two successive notches.

[0009] Thanks to the invention, during assembly of the flange, the position of the fixing portion relative to the peripheral portion along the adjustment axis is adjustable incrementally, according to an adjustment step corresponding to a step between two successive notches. The adjustment step depends on the shape of the notches and teeth, which allows finer adjustment compared to known devices of the prior art, in particular independent adjustment of the size of the impression, which accommodates the bearing.

[0010] According to advantageous but not obligatory aspects of the invention, such a flange may incorporate one or more of the following characteristics taken in isolation or in any technically admissible combination: - the stop means comprise: • a peripheral rim, which is provided on the peripheral portion at the edge of the light, the peripheral rim including two straight segments, which are each provided set back from a front face of the peripheral portion and which form the straight edges of the light, • two complementary segments, which are provided on the fixing portion, each complementary segment being configured to slide against a respective straight segment when the flange is in the engaged configuration,

[0011] whereas when the flange is in the engaged configuration, a front face of the fixing portion is coplanar with the front face of the peripheral portion. - The stop means provided on the fixing portion include a third segment, the third segment being arranged opposite one of the two complementary segments so as to form a slide extending along a slide axis parallel to the adjustment axis, the slide being configured to receive one of the straight segments of the peripheral rim when the flange is in the engaged configuration,

[0012] whereas when the corresponding straight segment is received in the slide, a kinematic connection between the fixing portion and the peripheral portion is a pivot-sliding connection along the slide axis. - Some of the teeth of the fixing portion are provided in a bottom of the slide,

[0013] while some of the notches are provided on the straight segment intended to be received in the slide,

[0014] and that when the corresponding straight segment is received in the slide, a kinematic connection between the fixing portion and the peripheral portion is a pivot connection around the slide axis. - The flange also includes a locking device, which is configured to hold the flange in the engaged configuration. - The flange also includes a locking device, which is configured to hold the flange in the engaged configuration,

[0015] whereas the locking device is configured to prevent rotational movements of the fixing portion relative to the peripheral portion around the slide axis. - The locking device includes a stop piece, which is distinct from the fixing portion and the peripheral portion, the stop piece being configured to maintain the fixing portion in an engaged position on the peripheral portion. - The fixing portion is made of a synthetic polymer material,

[0016] the locking device includes a non-return member, for example a stop clip, which is provided on the fixing portion and which is configured to hold the fixing portion in the engaged position on the peripheral portion.

[0017] The invention also relates to a protection installation, in particular a roller shutter, comprising: - two flanges, at least one of the flanges being as described above, the flanges being secured to a wall and being located above an opening made in this wall, - a winding tube with two end bearings, each of the bearings being supported by a respective flange, the tube being pivotally mounted relative to the flanges around the winding axis, - a protective screen, in particular a roller shutter apron, which is attached to the tube and which is configured to wrap around the tube or unwrap from the tube, depending on the rotational movements of the tube around the winding axis.

[0018] According to another aspect, the invention relates to a method of assembling a flange as described above, the assembly method comprising the successive steps consisting of: a. present the slide opposite the corresponding straight segment, choosing the position of the fixing portion relative to the peripheral portion along the adjustment axis, the teeth provided at the bottom of the slide being located opposite some of the notches of the peripheral portion, b. insert the corresponding straight segment into the slide, so as to engage the teeth in the opposite notches, c. bringing the fixing portion closer to the peripheral portion by pivoting the fixing portion relative to the peripheral portion around the slide axis, d. hold the flange in the engaged configuration using the locking device.

[0019] The invention will be better understood, and other advantages thereof will appear more clearly in the light of the following description of an embodiment of a roller shutter flange, of a roller shutter installation and of an assembly method, in accordance with its principle, given solely by way of example and made with reference to the accompanying drawings, in which:

[0020] [Fig-1] [Fig. 1] is a perspective view of a roller shutter installation according to the invention, the roller shutter installation comprising a winding tube supported by two supports, each support comprising a roller shutter flange;

[0021] [Fig.2] [Fig.2] represents, on two inserts a) and b), one of the supports of [Fig.l], observed from two different viewing angles;

[0022] [Fig.3] [Fig.3] is a partially exploded perspective view of the support of [Fig.2], certain parts being hidden, the support comprising a flange confirming to a first embodiment of the invention;

[0023] [Fig.4] [Fig.4] represents respectively, on three inserts a), b) and c), a perspective view of a first part of the flange of [Fig.3], and a perspective view of a second part of the flange of [Fig.3], observed from two different viewing angles;

[0024] [Fig.5] [Fig.5] represents, on two inserts a) and b), stages of assembly of the flange of [Fig.3];

[0025] [Fig.6] [Fig.6] represents, on two inserts a) and b), assembly steps of the flange of [Fig.3], and

[0026] [Fig.7] [Fig.7] represents, on two inserts a) and b), flanges conforming to alternative embodiments of the invention.

[0027] A protection installation 10 is schematically represented in [Fig.l]. The installation 10 is here an intrusion protection installation, which comprises a roller shutter. The protection installation 10 is therefore here a roller shutter installation.

[0028] The installation 10 is fixed to a wall 12, assumed to be flat and vertical, in which an opening 14 is provided which passes through the wall 12. The opening 14 is here hidden by a protective screen 24, which belongs to the protective installation 10. The protective screen 24 is here a roller shutter apron. According to non-limiting alternatives, the screen 24 is a solar canvas, or even a mosquito net, etc.

[0029] The installation 10 here comprises a trunk 18, which is here schematically represented in dotted lines. The trunk 18 is fixed to the wall 12, above the opening 14. The trunk 18 has an elongated, generally parallelepiped shape and extends in its length along a trunk axis A18. The trunk axis A18 is assumed to be horizontal. The description is made in relation to the orientation of the parts of the installation 10 as represented in the drawings, knowing that it may be otherwise in reality. The installation 10 has a structure that is generally symmetrical with respect to a transverse plane T18 of the installation, the transverse plane T18 being orthogonal to the trunk axis A18.

[0030] The trunk 18 provides a receiving volume VI8 for other parts of the installation 10, as described below. According to examples, the trunk 18 is manufactured by assembling boards.

[0031] According to a first alternative not shown, the receiving volume VI8 is delimited in part by the wall 12, for example is managed in the wall 12, in particular in a lintel delimiting the opening 14 in the upper part of the opening 14. This configuration corresponds to a so-called “tunnel” assembly. According to a second alternative not shown, the receiving volume VI8 is essentially contained in the lintel, according to a so-called “lintel” assembly configuration. These alternatives are not limiting.

[0032] The installation 10 comprises a tube 20, which is here a winding tube of the screen 24, and two supports 30, which are integral with the wall 12 and which are configured to support the tube 20. The two supports 30 are arranged symmetrically with respect to the transverse plane T18 of the installation 10, the two supports 30 having overall a symmetrical structure with respect to each other. What is valid for one of the two supports 30 is transposable to the other support 30.

[0033] The tube 20 comprises two opposite ends, each of which is provided 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.

[0034] 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 depending on 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.

[0035] The rotation of the tube 20 is controlled by a user by means of a drive device. The drive device is not shown. Depending on the configurations, the drive device is either manual, for example with a crank and a gear system or with a belt device, or motorized, with an electric motor. In the case of a motorized drive device, a part of the motor is generally received in the tube 20, while a pivoting head of the motor protrudes from the tube and forms one of the bearings of the tube.

[0036] Each support 30 is secured to the wall 12, that is to say fixed to the wall 12, either directly or by means of another element of the installation 10. In the example illustrated, each support 30 is fixed to a respective slide 32, the slide 32 being fixed to the wall 12. The installation 10 thus comprises two slides 32, which are located opposite one another, symmetrically with respect to the transverse plane T18. Each slide 32 extends vertically along one side of the opening 14, the two slides 32 serving to guide the screen 24, in particular during the upward or downward movements of the lower end 25B of the screen 24.

[0037] In the illustrated example, each bearing 22 comprises a part with a star shape, which is received in a complementary shaped imprint made in the support 30. Each bearing 22 thus received in the complementary imprint is locked in rotation, relative to the support 30, around the winding axis A18. The shape of the bearing 22 is not limiting.

[0038] The support 30 shown on the right of [Fig.l] is shown on a larger scale, with the associated slide 32 and the associated end bearing 22, in [Fig.2]. The remainder of the description is made with reference to this support 30.

[0039] Each support 30 comprises a leg 100, a tulip 200 and a flange 300.

[0040] The leg 100 is here formed in a metal plate, preferably made of steel. The tab 100 is for example manufactured by cutting. The tab 100 here comprises a fixing tenon 102, by which the tab 100 is configured to be assembled to the flange 300, and a fitting 104, by which the tab 100 is configured to be secured to the wall 12. The fitting 104 having a free end, which here has a tapered shape, and a captive end, which is opposite the free end and which is connected to the tenon 102. In the example illustrated, the tabs 100 are secured to the wall 12 by means of the slides 32, the fitting 104 of each tab 100 being fixed to a respective slide 32, which is fixed to the wall 12.

[0041] The tulip 200 comprises an outer wall 202A and an inner wall 202B, which are arranged opposite each other and which are connected to each other by a bottom 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 bottom 202C are configured to guide an edge of the protective screen 24 on a front side of the bottom 202C, so as to limit the friction of the screen 24 on the corresponding slide 32.

[0042] The tulip 200 provides a conduit 204 for fitting the fitting 104. The tulip 200 comprises a first elastic clip 206 configured to cooperate, in particular by complementarity of shape, with a first orifice 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.

[0043] Each of the flanges 300 supports one of the end bearings 22 of the winding tube 20, so that the tube 20 is pivotally mounted relative to the flanges 300 around the winding axis A18. The two flanges 300 assembled to the tube 20 together form a mounting subassembly 400 of the installation 10.

[0044] The flange 300 has a front face 302A, which is generally planar and which extends orthogonally to the winding axis A18, and a rear face 302B opposite the front face 302A. The flange 300 comprises a fixing portion 310, which comprises an imprint 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.

[0045] The flange 300 also comprises 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 the shape of an oblong hole, comprises two opposite straight edges 352A and 352B which are parallel to an adjustment axis A352. The shape of the slot 352 is not limiting.

[0046] The fixing portion 310 is configured to be assembled to the peripheral portion 350 by being received in the lumen 352 in an assembled configuration of the flange 300. The fixing portion 310 is here made of synthetic polymer material, and is preferably produced by hot injection. The peripheral portion 350 is here made of a metal plate, preferably steel, and is produced in particular by cutting and / or stamping.

[0047] As described below, the fixing portion 310 is adjustable in position relative to the peripheral portion 350 along the adjustment axis A352. It is thus possible to adjust a position of the tube 20 relative to the supports 30, during the assembly of the installation 10, in particular as a function of the size of the screen 24.

[0048] In the illustrated example, the fixing portion 310 comprises a wall 314, which defines the imprint 312. The wall 314, and by extension the imprint 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 in the imprint 312. The wall 314 has an internal side, oriented towards the side of the internal volume V312, and an external side, oriented opposite the internal side.

[0049] The insertion movement F312, which is represented by an arrow in [Fig. 3], is a translation movement parallel to the winding axis A18. The bearing 22 has a shape complementary to the imprint 312, so that the bearing 22 is locked in rotation relative to the fixing portion 310, and by extension relative to the flange 300, around the winding axis A18.

[0050] Advantageously, the flange 30 incorporates a locking device, which facilitates the assembly of the bearing 22 to the flange 30. Thus, the fixing portion 310 also comprises an opening 380, which is formed through the wall and which opens into the internal volume. In the example illustrated, the fixing portion 310 comprises three or 316 openings, which are regularly distributed around the winding axis A18.

[0051] The flange 300 also comprises a locking part 380, which here generally has the shape of a ring 382 with a control tab 384. The control tab 384 is connected to the ring 382 and is configured to be actuated by an installer, so as to control the movements of the locking part 380.

[0052] 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.

[0053] The locking part 380 comprises at least one protrusion 386, which is provided projecting from 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.

[0054] The locking part 380 is movable relative to the fixing portion 310 between a locking position, in which each protrusion 386 of the locking part 380 protrudes from the associated opening 316 into the internal volume V312 of the imprint 312, and a withdrawn position, in which each protrusion 386 does not protrude into the internal volume V312 of the imprint 312.

[0055] Each protrusion 386 is configured to be received in a complementary hollow 22A, provided in the bearing 22, so as to prevent translational movements of the bearing 22 relative to the fixing portion when the bearing is received in the imprint and the locking part is in the locking position. Each protrusion 386 thus forms a blocking portion of the locking part 380.

[0056] The protrusions 386 here have a tooth shape, while the complementary hollows 22A have a groove shape. These shapes are not limiting. In the example illustrated, each opening 316 is arranged in a plane transverse to the winding axis A18.

[0057] In the illustrated example, the ring 382 is guided in rotation relative to the fixing part 310, so the locking and retracted positions are angular positions of the ring 382 relative to the fixing portion 310 around the winding axis A18. The control tab 384 thus makes it possible to move the locking part 380 between its retracted position and its locking position.

[0058] The flange 300 advantageously comprises inscriptions 304, for example pictograms and / or alphanumeric characters, which are arranged so as to indicate to the user, as a function of an angular position of the control tab 384 around the winding axis A18, whether the locking part 380 is in one or the other of the locking position or the withdrawn position.

[0059] 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.

[0060] The assembly of the fixing portion 310 to the peripheral portion 350 will now be described, with reference to FIGS. 4 to 6.

[0061] The fixing 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 fixing portion 310 is assembled to the peripheral portion 350, as shown in FIGS. 2, 5b) and 6, where the flange is in a so-called “engaged” configuration.

[0062] The flange 300 comprises stop means, which are arranged in at least one of the elements chosen 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.

[0063] In the example illustrated, the stop means comprise a peripheral rim 354, which is provided on the peripheral portion 350 at the edge of the light 352. The peripheral rim 354 includes two straight segments 354A and 354B, which are each provided set back from the front face of the peripheral portion 350 and which form the straight edges 352A and 352B of the light 352. The peripheral rim 354 is here discontinuous, so as not to generate the movements of the tab 384.

[0064] The stop means also comprise two complementary segments 332A and 332B, which are arranged on the fixing portion 310, each complementary segment 332A or 332B being configured to cooperate, in particular by complementarity of 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 fixing portion 310 is coplanar with the front face of the peripheral portion 350. This avoids the risks of interference with the screen 24 during use of the installation 10. The arrangement and the shape of the stop means are not limiting.

[0065] The flange 300 also comprises adjustment means. The stop means and the adjustment means are configured so that, when assembling the fixing portion 310 to the peripheral portion 350, the fixing portion 310 is adjustable in position relative to the peripheral portion 350 along the adjustment axis A352.

[0066] In the illustrated example, the adjustment means comprise notches 356, which are regularly distributed along at least one of the straight edges 352A or 352B of the light 352, the notches 356 arranged along the same edge forming a row 358 of notches. In the illustrated example, notches 356 are arranged 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 arranged by notches cut out in the straight segments 354A and 354B. Two successive notches 356 are thus separated by a notch, a step between two successive notches 356 being equal to a length, measured parallel to the adjustment axis A352, of one notch and one notch.

[0067] The adjustment means also comprise teeth 336, which are arranged on the fixing portion 310 and which are configured to cooperate, by complementarity of shape, with a part of the notches 356, so as to prevent translational movements of the fixing 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.

[0068] 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 example illustrated, several teeth 336 are provided along each straight segment 332A and 332B of the fixing portion 310, forming rows 338 of teeth 336.

[0069] Thus, during 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 a step between two successive notches 356. The adjustment step depends on the shape of the notches 356 and the teeth 336, which allows a finer adjustment compared to the known devices of the prior art, in particular an adjustment independent of the size of the imprint 312, which accommodates the bearing 22. In the example illustrated, the step between two successive notches 356 is equal to 10 mm, compared to a diameter of the star-shaped bearing 22, of the order of 60 mm. Each row 358 of notches 356 here has five notches, while each row 338 of teeth 336 here comprises three teeth 336. It is thus possible to choose between three different positions.

[0070] Advantageously, inscriptions 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 inscriptions are not shown.

[0071] More generally, it is understood that the adjustment in position 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 recovery of the forces transmitted during use of the installation 10, which reduces the risks of accidental breakage of the fixing part 310.

[0072] Advantageously, the stop means provided on the fixing portion 310 include a third segment 332C. The third segment 332C is arranged opposite one of the two complementary segments 332A or 332B, so as to form a slide 340 extending along a slide axis A340 parallel to the adjustment axis. A352, the slide being configured to receive one of the straight segments 354A or 354B of the peripheral rim 354 when the flange 300 is in the engaged configuration. When the corresponding straight segment 354A or 354B is received in the slide, between the third segment 332C and the complementary segment 332A or 332B opposite, a kinematic connection between the fixing portion 310 and the peripheral portion 350 is a pivot-sliding connection along the slide axis.

[0073] In the example illustrated, in particular in figure 4b), the third segment 332C is arranged opposite the complementary segment 332A, called the first segment. The other complementary segment 332B is called the second segment.

[0074] Some of the teeth 336 of the fixing portion 310 are advantageously arranged in a bottom of the slide 340. In other words, a row 338 of teeth 336 is arranged at the bottom of the slide 340. Some of the notches 356 are arranged on the straight segment - here the straight segment 352A - intended to be received in the slide 340. Thus, when the corresponding straight segment 352A is engaged in the slide 340, a kinematic connection between the fixing portion 310 and the peripheral portion 350 is a pivot connection around the slide axis A340. This configuration is illustrated in FIG. 5a). From the configuration of Figure 5a), the fixing portion 310 is brought closer to the peripheral portion 350 according to a folding movement F340, which is a rotational movement of the fixing portion 310 relative to the peripheral portion 350 around the slide axis A340. The folding movement F340 is represented by an arrow in Figure 5a).

[0075] The folding movement F340 continues until the second segment 332C of the stop means comes to bear against the associated straight segment 354B. The flange is then in the engaged configuration, as shown in FIG. 5b.

[0076] The particular arrangement with a row 336 of teeth at the bottom of the slide 340, facilitates the mounting and positioning of the fixing portion 310 relative to the peripheral portion 350.

[0077] When the installation 10 is in the use configuration, as shown in [Fig.l], the forces of the tube 20 on the flange tend to maintain the flange 300 in the engaged configuration. In addition, the flange 300 advantageously comprises a locking device, which is configured to maintain the flange 300 in the engaged configuration.

[0078] In the illustrated example, the locking device is a stop piece 370, which is a separate piece from the fixing portion 310 and the peripheral portion 350. The stop piece 370 is configured to hold the fixing portion 310 in the engaged position on the peripheral portion 350.

[0079] The stop piece 370 here comprises a gripping portion 372 in the shape of a “D”, and stop clips 374, which extend projecting from a straight bar of the D. the clips stop 374 are configured to cooperate with complementary orifices 342, which are provided in a hollow on the fixing portion 310.

[0080] In the illustrated example, the complementary orifices 342 are arranged along the row 338 of teeth 336 adjacent to the second segment 332B. Thus, when the flange 300 is in the engaged configuration, the stop clips 374 are inserted into the complementary orifices 342, the stop piece 370 then being in a stop position relative to the rest of the flange 300. By elastic return, the stop clips 374 hold the stop piece 370 in the stop position, in which the gripping portion 372 forms an obstacle, which prevents the fixing portion 310 from being moved away from the peripheral portion 350 in a movement opposite to the folding movement F340.

[0081] The slide 340, with a row 338 of teeth 336 at the bottom, and the stop piece 370 make it possible to implement a particularly simple and rapid method of assembling the flange 30. The assembly method comprises the following successive steps, these steps consisting of:

[0082] a) present the slide 340 opposite the corresponding straight segment 352A, by choosing the position of the fixing portion 310 relative to the peripheral portion 350 along the adjustment axis A352, the teeth 336 provided at the bottom of the slide 340 being located opposite some of the notches 356 of the peripheral portion 350,

[0083] b) insert the corresponding straight segment 332A into the slide 340, so as to engage the teeth 336 in the notches 356 opposite,

[0084] c) bringing the fixing portion 310 closer to the peripheral portion 350 by pivoting the fixing portion 310 relative to the peripheral portion around the slide axis A340,

[0085] d) maintaining the flange 30 in the engaged configuration using the locking device 370.

[0086] The assembly of the flange 30 is thus particularly easy and quick, requiring no particular effort. This assembly is carried out by hand and without tools.

[0087] The disassembly of the flange is also easy and quick to implement, by hand and without tools. The installer first disassembles the stop piece 370, here by pulling on the gripping portion 372, then pivots the fixing portion 310 relative to the peripheral portion 350 in a movement opposite to the folding movement F340, finally moves the slide 340 away from the row 358 of notches 356

[0088] Two alternative embodiments of the invention are respectively illustrated in Figure 7a) and 7b). In each alternative embodiment, the elements similar to those of the other embodiment(s) described previously bear the same references and operate in the same way. In the following, the differences between each embodiment and the previous one(s) are mainly described.

[0089] With reference to FIG. 7a), the stop piece 370 of the flange 300 according to the first embodiment is replaced by a stop clip 377, which is here provided directly on the fixing portion 310. For example, the stop clip 377 projects from the second segment 332B. The second segment 332B is not visible in [Fig.7].

[0090] The stop clip 377 here replaces one of the teeth 336 of the row 338 which is not located at the bottom of the slide 340. The stop clip 377 cooperates with one of the notches between the notches 356, in particular by complementarity of shapes, so as to maintain the flange 300 in the engaged configuration.

[0091] Thus, in the first embodiment of the invention as in the second embodiment, the locking device is configured to prevent rotational movements of the fixing portion 310 relative to the peripheral portion 350 around the slide axis A340 when the flange 300 is in the engaged configuration.

[0092] The assembly of the flange 300 is thus made easier, because the installation of an additional part is avoided, which is the stop part 370 of the first embodiment. On the other hand, the disassembly of the flange 300 requires pushing back the stop clip 377, for example using a tool such as a screwdriver, and simultaneously pivoting the fixing portion 310 relative to the peripheral portion 350 in a movement opposite to the folding movement F340.

[0093] With reference to Figure 7b), the third segment 332C of the flange 300 of the previous embodiments is replaced by an additional stop clip 379. The flange 300 illustrated in Figure 7b) thus comprises both the stop clip 377 described with reference to Figure 7a), called the first clip 377, and the additional stop clip 379. The first stop clip 377 and the additional stop clip 379 advantageously have the same structure and operate in the same way.

[0094] In other words, the fixing portion 310 does not comprise a slide, but comprises the two clips 377 and 379, which each cooperate with one of the notches between the notches 356 of a respective row 358, so as to maintain the flange 300 in the engaged configuration.

[0095] In the illustrated example, the body of the flange has a star-shaped imprint, configured to receive an end bearing of a motor of the winding tube. Of course, the flange can receive any type of part having a shape compatible with the imprint, in particular an adaptation part, as described in published application FR3118479 (A1). The shape of the imprint is not limiting, as long as the bearing can be locked in rotation when it is in the imprint.

[0096] In the example illustrated, 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.

[0097] In a variant not shown, the peripheral portion of each flange has a symmetrical shape relative to a plane orthogonal to the adjustment axis A352, in particular each peripheral portion comprises two housings for receiving the fixing lugs to the corresponding slide. Peripheral portions of the same type can thus be used for the two supports of the protection installation, which reduces the number of different spare parts.

[0098] The embodiments and variants mentioned above can be combined with each other to generate new embodiments of the invention.

Claims

Claims

1. Flange (300), configured to support a winding tube (20) of a protection installation (10), in particular a roller shutter, in which: • the flange (300) has a front face (302A) which is generally flat and which extends orthogonally to a winding axis (A18), the flange (300) comprising: • a peripheral portion (350), which is configured to be secured to the rest of the roller shutter installation (10) and in which a light (352) is provided, which comprises two opposite straight edges (352A, 352B) which are parallel to an adjustment axis (A352), • a fixing portion (310), which is configured to be assembled to the peripheral portion (350) by being received in the lumen (352) in an assembled configuration of the flange (300), the fixing portion (310) comprising an imprint (312), configured to receive an end bearing (22) of the winding tube (20), • the flange (300) also comprises adjustment means, which comprise: • notches (356), which are regularly distributed along at least one of the straight edges (352A, 352B) of the light (352), the notches (356) arranged along the same straight edge forming a row (358) of notches, • teeth (336), which are provided on the fixing portion (310) and which are configured to cooperate, by complementarity of shape, with a part of the notches (356), so as to prevent translational movements of the fixing portion (310) relative to the peripheral portion (350) along the adjustment axis (A352), the adjustment means then being in an engaged configuration, characterized in that:

2. • the flange (300) comprises stop means, which are arranged in at least one of the elements chosen from the peripheral portion (350) and the fixing portion (310), the stop means being configured to limit the relative movements of the fixing portion (310) with respect to the peripheral portion (350) to translational movements along the adjustment axis (A352) when the stop means are in an engaged configuration, the flange (300) then being in an engaged configuration • the stop means and the adjustment means are configured so that, when assembling the fixing portion (310) to the peripheral portion (350), a 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 a step between two successive notches (356). Roller shutter flange (300) according to claim 1, in which: • the stop means include • a peripheral rim (354), which is provided on the peripheral portion (350) at the edge of the light (352), the peripheral rim (354) including two straight segments (354A, 354B), which are each provided set back from a front face of the peripheral portion (350) and which form the straight edges (352A, 352B) of the light (352), • two complementary segments (332A, 332B), which are provided on the fixing portion (310), each complementary segment being configured to slide against a respective straight segment (354A, 354B) when the flange (300) is in the engaged configuration, • when the flange (300) is in the engaged configuration, a front face of the fixing portion (310) is coplanar with the front face of the peripheral portion (350).

3. Roller shutter flange (300) according to claim 2, wherein: • the stop means provided on the fixing portion (310) include a third segment (332C), the third segment being arranged opposite one of the two complementary segments (332A) so as to form a slide (340) extending along a slide axis (A340) parallel to the adjustment axis (A352), the slide (340) being configured to receive one of the straight segments (354A) of the peripheral rim (354) when the flange (300) is in the engaged configuration, • when the corresponding straight segment (354A) is received in the slide (340), a kinematic connection between the fixing portion (310) and the peripheral portion (350) is a pivot-sliding connection along the slide axis (A340).

4. Roller shutter flange (300) according to claim 3, in which: • some of the teeth (336) of the fixing portion (310) are provided in a bottom of the slide (340), • some of the notches (356) are provided on the straight segment (354A) intended to be received in the slide (340), • when the corresponding straight segment is received in the slide, a kinematic connection between the fixing portion (310) and the peripheral portion (350) is a pivot connection around the slide axis (A340).

5. Roller shutter flange (300) according to any one of claims 1 to 4, wherein: • the flange (300) also comprises a locking device (370; 377; 379), which is configured to hold the flange (300) in the engaged configuration.

6. Roller shutter flange (300) according to claim 4, in which: • the flange (300) also comprises a locking device (370; 377), which is configured to maintain the flange (300) in the engaged configuration, • the locking device (370; 377) is configured to prevent rotational movements of the fixing portion (310) relative to the peripheral portion (350) around the slide axis (A340).

7. Roller shutter flange (300) according to any one of claims 5 or 6, wherein: • the locking device includes a stop piece (370), which is separate from the fixing portion (310) and from the peripheral portion (350), the stop piece being configured to hold the fixing portion (310) in the engaged position on the peripheral portion (350).

8. Roller shutter flange (300) according to any one of claims 5 or 6, wherein: • the fixing portion (310) is made of a synthetic polymer material, • the locking device includes a non-return member, for example a stop clip (377; 379), which is provided on the fixing portion (310) and which is configured to hold the fixing portion (310) in the engaged position on the peripheral portion (350).

9. Protective installation (10), in particular for a roller shutter, comprising: • two flanges (300), at least one of the flanges (300) being in accordance with any one of claims 1 to 8, the flanges (300) being integral with a wall (12) and being located above an opening (14) made in this wall, • 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 pivotally mounted relative to the flanges (300) around the winding axis (A 18), • a protective screen (24), in particular a roller shutter apron, which is attached to the tube (20) and which is configured to wind around the tube (20) or unwind from the tube (20), in function of the rotational movements of the tube (20) around the winding axis.

10. A method of assembling a flange (300) according to claim 6, the assembly method comprising the successive steps of: a. present the slide (340) opposite the corresponding straight segment (352A), by choosing the position of the fixing portion (310) relative to the peripheral portion (350) along the adjustment axis (A352), the teeth (336) provided at the bottom of the slide (340) being located opposite some of the notches (356) of the peripheral portion (350), b. insert the corresponding straight segment (352A) into the slide (340), so as to engage the teeth (336) in the notches (356) opposite, c. bringing (F340) the fixing portion (310) closer to the peripheral portion (350) by pivoting the fixing portion (310) relative to the peripheral portion (350) around the slide axis (A340), d. maintaining the flange (300) in the engaged configuration using the locking device (370; 377).

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