Flange for a roller shutter, mounting subassembly, and protection installation

Abstract

A roller shutter flange comprising a mounting portion (310) with a wall (314) defining a recess (312) and delimiting an internal volume (V314) for receiving an end bearing (22) of a winding tube (20). The flange (300) includes a locking piece (380), which is captive to the mounting portion and movable relative to the mounting portion between a locked position and a retracted position. The locking portion is configured to be received in a complementary recess (22A) formed in the bearing (22), so as to prevent translational movement of the bearing relative to the mounting portion when the bearing is received in the recess and the locking piece is in the locked position.

Description

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

[0002] In buildings whose exterior walls 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 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 casing 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 protective screen.

[0004] The shape of the tube end bearings varies depending on the configuration. In the case of motorized roller shutter installations, the installation generally includes a motor, which is housed in the tube and whose pivoting head protrudes from the tube, this head being fixed to the flange.

[0005] FR-2 917 452-A1 describes, for example, a flange comprising an attached plate, the plate having an orifice for receiving an axis of the tube. The axis is locked to the plate by means of a spring pin, which risks being lost and the installation of which can be difficult, because it requires perfect alignment of the parts. FR-3 126 137-A1 describes, for its part, a roller shutter flange with a pendulum lock comprising relatively fragile indexing members.

[0006] It is these problems that the invention aims to address more specifically by proposing a roller shutter flange which allows easier fixing of the end bearing of the winding tube.

[0007] To this end, the invention relates to a roller shutter flange, which is configured to support a winding tube of a protection installation.

[0008] According to the invention: the flange comprises a fixing portion which extends along a flange plane orthogonal to a winding axis, the fixing portion comprising a wall defining a cylindrically shaped imprint centered on the winding axis, the wall delimiting an internal volume which is configured to receive an end bearing of the winding tube according to an insertion movement of the bearing into the imprint, the insertion movement being a translation movement parallel to the winding axis, the bearing having a shape complementary to the imprint, so that the bearing is locked in rotation relative to the flange around the winding axis, the fixing portion also comprises an opening, which is formed through the wall and which opens into the internal volume, the flange comprises a locking part, which is captive of the fixing portion and which is movable relative to the fixing portion between a locking position,wherein a locking portion of the locking part protrudes from the opening into the internal volume of the cavity, and a withdrawn position, in which the locking portion does not protrude into the internal volume, and the locking portion is configured to be received in a complementary hollow, provided in the end bearing, so as to prevent translational movements of the bearing relative to the fixing portion when the bearing is received in the cavity and the locking part is in the locking position.

[0009] Thanks to the invention, once the bearing is received in the cavity, locking the bearing is done simply by moving the locking part to its locking position. The locking part being captive of the fixing portion, it is captive, and moving the locking part to its locking position is particularly easy, as it requires little time and effort.

[0010] According to advantageous but not mandatory aspects of the invention, such a flange may incorporate one or more of the following features taken in isolation or in any technically admissible combination: The locking part also comprises a control tab, which is configured to be actuated by a user, so as to move the locking part between its withdrawn position and its locking position, while the fixing portion comprises recesses, which are arranged to receive a portion of the tab when the locking part is either in the assembled position, or in the locked position, or in the withdrawn position, so as to index the movements of the locking portion relative to the fixing portion. The locking part comprises a ring, which is arranged on an external side of the wall and which is guided in rotation relative to the fixing portion around the winding axis, the external side of the wall being located on the opposite side of the internal volume, while the blocking portion is a protrusion, which is provided projecting from the ring,the locking portion extends from the ring centripetally to the winding axis, that the opening is arranged in a plane transverse to the winding axis, and that the locking and retracted positions are angular positions of the ring relative to the fixing portion around the winding axis. The locking part also comprises a control tab, which is connected to the ring and which is configured to be actuated by a user, so as to move the locking part between its retracted position and its locking position, while the flange comprises inscriptions, for example pictograms and / or alphanumeric characters, which are arranged so as to indicate to the user, depending on an angular position of the control tab around the winding axis, whether the locking part is in one or the other of the locking position or the retracted position. The wall extends,parallel to the winding axis, between a front side, which is geometrically carried by a front plane transverse to the winding axis, and a rear side, which is opposite the front side and which is carried by a rear plane transverse to the winding axis, while the fixing portion comprises rear stops, which are integral with the wall, which are located on the external side of the wall and which are carried by the rear plane, that the fixing portion comprises front stops, which extend projecting from the front side of the wall, the front stops being located on the external side of the wall and being geometrically carried by the front plane, that the front stops and the rear stops are axially offset, along the winding axis, so as to form between them an annular volume for receiving the ring, the flange being in an assembled configuration when the ring is received in the annular volume, and that the ring comprises notches,which are aligned with the front stops when the flange is in the assembled configuration, such that the locking part is movable relative to the fixing portion in a disassembly movement, the disassembly movement being a translational movement parallel to the winding axis oriented from the rear side of the wall to the front side of the wall, the locking part being in an assembled position when the flange is in the assembled configuration and the notches are aligned with the front stops. While the flange is in the assembled configuration, the movements of the locking part between the assembled position, the removed position and the locking position are indexed. The locking part includes an axial protrusion, which is provided projecting from a front face of the locking part,the front face being oriented towards the front stops when the locking part is received in the annular volume, while the axial protuberance is associated with one of the front stops and cooperates with the associated front stop, in particular by complementarity of shapes, so as to index the movements of the locking part between the assembled position and the locking position. The axial protuberance comprises an upper face, which is configured to slide against the associated front stop when the locking part is moved between the assembled position and the locking position, while the axial protuberance has a ramp shape and provides a front portion and a rear portion, which are angularly offset around the winding axis, the front portion being opposite the associated front stop when the locking part is in the assembled position,while the rear portion is opposite the associated front stop when the locking part is in the locking position, and the front portion of the axial protrusion has a thickness less than a thickness of the rear portion, such that: when the locking part is in the assembled position, the axial protrusion does not prevent the locking part from moving from the assembled position to the locking position, the locking part and / or the fixing portion being configured to deform elastically while the upper face slides on the associated front stop, when the locking part is in the locking position, the axial protrusion prevents the locking part from moving from the locking position to the assembled position, the rear portion of the axial protrusion bearing against the associated front stop,the axial protuberance and the associated front stop together forming a non-return member.

[0011] The invention also relates to a mounting subassembly, comprising: two flanges, and 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, wherein the end bearing is received in the internal volume of the imprint of one of the flanges, this flange being as defined previously.

[0012] The invention also relates to a protection installation, in particular a roller shutter, comprising: a mounting subassembly as defined above, and a protective screen, including a roller shutter apron, which is attached to the tube and is configured to wrap around the tube or unwind from the tube, in function of the rotational movements of the tube, in which the flanges are secured to a wall and are located above an opening made in this wall.

[0013] According to another aspect, the invention relates to a method of assembling a mounting subassembly as defined above, the assembly method comprising the successive steps of: a) inserting the bearing into the impression according to the insertion movement parallel to the winding axis, while the locking portion does not protrude into the internal volume of the impression, b) then, moving the locking member into the locking position, so as to prevent translational movements of the bearing relative to the fixing portion according to the winding axis. Advantageously:

[0014] the flange is as defined previously, and the assembly method comprises the following steps, prior to step a), of assembling the flange: the locking part being initially separated from the fixing portion, the ring is placed opposite the front side of the wall, the notches being angularly aligned with the front stops, then the ring is approached from the fixing portion in an assembly movement, opposite to the disassembly movement, the front stops crossing the notches, until the ring is in abutment against the rear stops, the flange then being in the assembled configuration, while the locking part is in the assembled position, then the locking part is moved from the assembled position to the removed position, so as to capture the ring in the annular volume.

[0015] The invention will be better understood, and other advantages thereof will appear more clearly in the light of the following description of several embodiments of a roller shutter flange, a roller shutter installation and an assembly method, in accordance with its principle, given solely by way of example and with reference to the appended drawings, in which: [ Fig 1 ] there figure 1 is a perspective view of a roller shutter installation according to a first embodiment of the invention, the roller shutter installation comprising a winding tube supported by two supports, each support comprising a roller shutter flange; [ Fig 2 ] there figure 2 represents, on two inserts a) and b), one of the supports of the figure 1 , observed from two different viewing angles; [ Fig 3 ] there figure 3 is a partially exploded perspective view of the support of the figure 2 , some parts being hidden; [ Fig 4 ] there figure 4 is an exploded perspective view of a subassembly of the bracket of the figure 3 and a tube bearing of the figure 3 ; [ Fig 5 ] there figure 5 represents, on two inserts a) and b), a perspective view and a front view of the subassembly of the figure 3 , shown in an assembled configuration; [ Fig 6 ] there figure 6 represents, on three inserts a), b) and c), a perspective view, a front view and a section along a plane VI c at insert b), of the subassembly of the figure 3 , shown in a locking configuration; [ Fig 7 ] there figure 7 represents, on two inserts a) and b), the subassembly and the tube bearing of the figure 3 , represented respectively at a distance from each other or assembled to each other, the subassembly being in a withdrawn configuration; [ Fig 8 ] there figure 8 represents respectively, on two inserts a) and b), a perspective view and a section along a plane VIII b at insert a), of the subassembly and the tube bearing of the figure 3 assembled together, the subassembly being in the locking configuration; [ Fig 9 ] there figure 9 is a perspective view of a subassembly of a flange of a second embodiment of the invention, the subassembly being shown in the assembled configuration; [ Fig 10 ] there figure 10 is a perspective view of the subset of the figure 9 , represented in an intermediate configuration between the assembled configuration and the locking configuration; [ Fig 11 ] there figure 11 is a perspective view of the subset of the figure 9 , represented in the locking configuration, and [ Fig 12 ] there figure 12 is a perspective view of the subset of the figure 9 , shown in the removed configuration.

[0016] A protection installation 10 is schematically represented on the figure 1 . Installation 10 here is an intrusion protection installation, which includes a roller shutter. Protection installation 10 is therefore here a roller shutter installation.

[0017] 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.

[0018] 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.

[0019] The trunk 18 provides a receiving volume V18 for other parts of the installation 10, as described below. According to examples, the trunk 18 is manufactured by assembling boards.

[0020] According to a first alternative not shown, the receiving volume V18 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 “half-lintel” assembly. According to a second alternative not shown, the receiving volume V18 is essentially contained in the lintel, according to a so-called “lintel” assembly configuration. These alternatives are not limiting.

[0021] 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 a generally symmetrical structure with respect to each other. What is valid for one of the two supports 30 is transposable to the other support 30.

[0022] 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 bracket 30, so that the tube 20 is pivotally mounted relative to the brackets 30, around the trunk axis A18.

[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 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.

[0024] 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 portion 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 tube bearings.

[0025] 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 movements of raising or lowering the lower end 25B of the screen 24.

[0026] In the illustrated example, each bearing 22 comprises a part with a star shape, which is received in a complementary shaped imprint formed 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, provided that the bearing 22 is locked in rotation when it is in the imprint 312.

[0027] In the example illustrated, the star-shaped imprint 312 receives the end bearing 22 of the winding tube 20. Of course, the flange 300 is configured to receive any type of part having a shape compatible with the imprint 312, in particular an adaptation part, as described in the published application FR-3 118 479-A1.

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

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

[0030] The tab 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.

[0031] 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.

[0032] 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 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] As described below, 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 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.

[0038] 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 when the fixing portion 310 is assembled, the wall 314 delimiting an internal volume V314 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 V314, and an external side, oriented opposite the internal side.

[0039] The insertion movement F312, 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 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.

[0040] 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 openings 316, which are distributed regularly around the winding axis A18.

[0041] 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. The locking part 380 is here made of synthetic polymer material, and is preferably produced by hot injection. Alternatively, the locking part is produced by stamping a metal sheet, alternatively made of polymer.

[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. For this purpose, the ring 382 comprises an internal radial surface 385, which is geometrically carried by a cylinder of circular section centered on the winding axis A18, while the wall 314 has, on the external side, an external radial surface 315, which is geometrically carried by a cylinder of circular section centered on the winding axis A18 and which has a diameter substantially equal, apart from assembly clearances, to a diameter of the internal radial surface 385 of the ring.

[0043] 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 centripetally to the winding axis A18. In particular, each protrusion 386 projects from the inner radial surface 385 towards the winding axis A18. Each protrusion 386 is associated with a respective opening 316.

[0044] 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 V314 of the indentation 312, and a withdrawn position, in which each protrusion 386 does not protrude into the internal volume V314 of the indentation 312. When the locking part 380 is in the locking position, the subassembly formed by the fixing portion 310 and the locking part 380 is then in a locking configuration. When the locking part 380 is in the withdrawn position, the subassembly formed by the fixing portion 310 and the locking part 380 is then in a withdrawn configuration.Moving the locking part 380 from the retracted position to the locking position is a locking movement, while moving the locking part 380 from the locking position to the retracted position is an unlocking movement.

[0045] 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 cavity and the locking part is in the locking position. Each protrusion 386 thus forms a blocking portion of the locking part 380.

[0046] The protrusions 386 here have a tooth shape, while the complementary recesses 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.

[0047] 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 allows the installer to move the locking part 380 between its retracted position and its locking position.

[0048] 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 other of the locking 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 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 figure 2 , where the flange is in a so-called “engaged” configuration.

[0051] 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.

[0052] 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 tongue 384.

[0053] 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.

[0054] 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.

[0055] 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 pitch 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 comprise teeth 336, which are provided on the fixing portion 310 and which are configured to cooperate, by complementarity of shape, with a portion 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.

[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 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] We will now detail the structure of the flange 300, in particular the structure of the fixing portion 310, with reference to figures 4 à 8 .

[0062] On the figure 4 , the fixing portion 310 is shown in exploded perspective with a portion of the bearing 22, which is configured to be received in the impression 312.

[0063] The wall 314 extends, parallel to the winding axis A18, between a front side, which is geometrically carried by a front plane transverse to the winding axis A18, and a rear side, which is opposite the front side and which is carried by a rear plane transverse to the winding axis A18.

[0064] The fixing portion 310 comprises rear stops 320, which are integral with the wall 314, which are located on the external side of the wall 314 and which are carried by the rear plane. The rear stops 320 are here formed by ribs, which extend from the wall 314 on the external side of the wall 314. The ribs are here arranged regularly around the winding axis A18 and together form a sliding surface for the ring 382.

[0065] The fixing portion 310 comprises front stops 322, which extend projecting from the front side of the wall 314, on the external side of the wall. The front stops 322 are here formed by parallelepipedal-shaped studs and are here three in number, the front stops here being arranged regularly around the winding axis A18. The front stops 322 are geometrically carried by the front plane and extend here from the external radial surface 315 of the fixing portion 310.

[0066] The front stops 322 and the rear stops 320 are axially offset, along the winding axis A18, so as to form between them an annular volume V324 for receiving the ring 382. It is understood that when the ring 382 is received in the receiving volume V224, the ring 384 is movable in rotation relative to the fixing portion 310. The flange 300 is in a so-called “assembled” configuration when the ring 382 is received in the annular volume V324.

[0067] The ring 382 comprises notches 388, which are here formed in a hollow on the internal radial surface 385. Each notch 388 is associated with a respective front stop 322, so that, when the flange 300 is in the assembled configuration and the ring 382 is in a so-called assembled position relative to the fixing portion 310, all the stops 322 are simultaneously aligned, along the winding axis A18, with the notches 388 associated with these stops.

[0068] Thus, when the locking part 380 is in the locking position, the locking part 380 is movable relative to the fixing portion 310 according to a disassembly movement F390, the disassembly movement being a translation movement parallel to the winding axis A18 oriented from the rear side of the wall towards the front side of the wall. In other words, starting from the assembled configuration of the flange 300, when the notches 388 are aligned with the front stops 322, the disassembly movement F390 tends to move the locking part 380 away from the fixing portion 310, thus disassembling the flange 300.

[0069] It is understood that when the flange is in the assembled configuration, but the notches 388 are not aligned with the front stops 322, the disassembly movement F390 is prevented, in other words the ring 382 is captive in the annular volume V324. The locking and unlocking movements are each rotational movements of the locking part 380 relative to the fixing portion 310 around the winding axis A18.

[0070] Preferably, while the flange 300 is in the assembled configuration, the movements of the locking part 380 between the assembled position, the removed position and the locking position are preferably indexed. In the illustrated example, the indexing is achieved by providing recesses 392 in the material of the fixing portion 310, the recesses 392 being arranged to receive a portion of the tab 324 when the locking part 380 is either in the assembled position, the locked position, or the removed position.When the flange 300 is in the assembled configuration and the installer actuates the tab 384 to pivot the locking part 380 relative to the fixing portion 310, the tab 384 generates a force which opposes the movement of the locking part 380, the user having to overcome this force to move the locking part, thus creating the indexing, which reduces the risks of accidental unlocking of the locking part 380. Thus, the locking of the bearing 22 in the imprint 312 is advantageously done by hand and without tools, without risk of losing the locking part 380, captive of the fixing portion 310. The indexing means thus operated are particularly robust, because they are formed directly in the thickness of the material.

[0071] When assembling the 300 flange, the following assembly steps are implemented: the locking part 380 being initially separated from the fixing portion 310, the ring 382 is placed opposite the front side of the wall 314, the notches 388 being angularly aligned with the front stops 322. The flange 300 is then in the configuration of the figure 4 . Then, the ring 382 is approached to the fixing portion 310 in an assembly movement, opposite to the disassembly movement F390, the front stops 322 crossing the notches 388, until the ring 382 is in abutment against the rear stops 320, the flange 300 then being in the assembled configuration, while the locking part 380 is in the assembled position. The flange 300 is then in the configuration of the figure 5 . then, the locking part 380 is moved from the assembled position to the removed position, according to a rotational movement of the locking part 380 relative to the fixing portion 310 around the winding axis A18, so as to capture the ring 382 in the annular volume V324. The flange is then in the configuration of the figure 6 or of the figure 7a ), depending on whether the locking part 380 is moved into the locking position or into the withdrawn position.

[0072] Once the ring 382 is captive in the annular volume V324, the installer pivots the locking part 380 preferably to the withdrawn position for future assembly of the flange 300 with a bearing 22 of the winding tube 20, to form the mounting subassembly 400.

[0073] Thus, after providing a flange 300 in assembled configuration, a method of assembling the mounting subassembly 400 comprises the following steps: a) insert the bearing 22 into the imprint 312 according to the insertion movement F312 parallel to the winding axis A18, while the locking portion 386 does not protrude into the internal volume V314 of the imprint 312. The flange 300 and the bearing 22 are then in the configuration of the figure 7b ). b) then, move the locking member 380 into the locking position, so as to prevent translational movements of the bearing 22 relative to the fixing portion 310 along the winding axis A18.

[0074] As a result of the assembly process, the flange 300 and the bearing 22 are in the configuration of figures 1 , 2 And 8 .

[0075] A fixing portion 410 and a locking part 480, belonging to a flange according to a second embodiment of the invention, are shown in figures 9 à 12 . In the second embodiment, elements similar to those in the first embodiment have the same references and operate in the same way. In the following, the differences between the first and second embodiments are mainly described.

[0076] The fixing portion 410 and the locking part 480 form a subassembly of the flange according to the second embodiment of the invention.

[0077] The locking part 380 has a ring shape 482, which here comprises two control tabs 484. The tabs 484 are diametrically opposed relative to the winding axis A18.

[0078] Whereas in the first embodiment, the notches 388 are formed in a hollow on the internal radial surface 385 of the ring 382, ​​as illustrated in particular in figure 4 , in the second embodiment, the ring 482 comprises notches 488, which are arranged on an external radial surface 485 of the ring 482. In other words, the notches 488 are open in a centrifugal direction to the winding axis A18.

[0079] Symmetrically, whereas in the first embodiment the front stops 322 associated with the notches 388 extend projecting from the external side of the wall 314, in the second embodiment, the fixing portion 410 comprises a peripheral wall 414, which extends opposite the wall 314 delimiting the imprint 312 so as to delimit the annular volume V324. The fixing portion 410 comprises front stops 422, which are arranged projecting from the peripheral 414 in the direction of the winding axis A18, the front stops 422 being configured to cooperate with the notches 488, in a manner analogous to the cooperation of the front stops 322 and the notches 388 of the first embodiment.

[0080] The locking part 480 here comprises three protrusions 386, which are arranged projecting from the ring 482 and which extend from the ring 482 towards the winding axis A18, in other words centripetally to the winding axis A18. The fixing portion 410 here comprises three openings 416, which are arranged through the wall 314 and which open into the internal volume V314.

[0081] The locking part 480 comprises an axial protrusion 490, which is provided projecting from a front face 492 of the locking part 480, the front face 492 of the locking part 480 being oriented towards the front stops 422 when the locking part 480 is received in the annular volume V324. The axial protrusion 490 is associated with one of the front stops 422 and cooperates with the associated front stop 422, in particular by complementarity of shapes, so as to index the movements of the locking part 180 between the assembled position and the locking position.

[0082] In the illustrated example, the axial protrusion 490 includes an upper face 494, which is configured to slide against the associated front stop 422 when the locking part 480 is moved between the assembled position and the locking position.

[0083] The axial protuberance 490 advantageously has a ramp shape, which provides a front portion 496A and a rear portion 496B, which are angularly offset around the winding axis A18, the front portion 496A being opposite the associated front stop 422 when the locking part 480 is in the assembled position, as illustrated in figure 9 , while the rear portion 496B is opposite the associated front stop 422 when the locking part 480 is in the locking position, as illustrated in figure 11 . On the figure 10 , the locking part 480 is shown in an intermediate position between the assembled position and the locking position.

[0084] A thickness of the front portion 496A is defined as being a distance, measured at the front portion 496A and parallel to the winding axis A18, between the upper face 494 and the front face 492 of the locking part 480. Similarly, a thickness of the rear portion 496B is defined as being a distance, measured at the rear portion 496B and parallel to the winding axis A18, between the upper face 494 of the axial protrusion 490 and the front face 492 of the locking part 480,

[0085] The thickness of the front portion 496A is less than the thickness of the rear portion 496B, so that: when the locking part 480 is in the assembled position, the axial protrusion 490 does not prevent the movement of the locking part 480 from the assembled position to the locking position, the locking part 480 and / or the fixing portion 410 being configured to elastically deform while the upper face 494 of the axial protrusion 490 slides on the associated front stop 422, so as to accommodate the passage of the locking part 480 from the assembled position to the locking position, as illustrated in figure 10 , when the locking part 480 is in the locking position, the axial protrusion 490 prevents the movement of the locking part 480 from the locking position to the assembled position, the rear portion 496B of the axial protrusion being configured to bear against the associated front stop 422.

[0086] In other words, the axial protrusion 490 and the associated front stop 422 together form a non-return member, which prevents the disassembly of the locking part 480 once the locking part 480 is assembled to the portion 410, the locking part 480 being in the locking position or in the withdrawn position, or in an intermediate position between the locking position and the withdrawn position.

[0087] In a variant not shown, the axial protrusion 490 cooperates with the associated front stop 422, in particular by complementarity of shapes, so as to index the movements of the locking part 480 between the assembled position and the locking position. For example, the front portion 496A and the rear portion 496B have a similar thickness, while an intermediate portion of the axial protrusion 490, located between the front portion 496A and the rear portion 496B, has a thickness greater than that of the front portion 496A or the rear portion 496B.

[0088] In the illustrated example, the flange 300 comprises the fixing portion 310 and the peripheral portion 350, which are separate parts. The structure of the flange is not limiting, and the principles of the invention can be transposed to other types of flange, for example when the fixing portion 310 is integral with the peripheral portion 350. Of course, the materials and manufacturing methods of the fixing portion 310 and the peripheral portion 350 are then adapted accordingly.

[0089] In the illustrated example, the locking part 380 comprises the ring 382, ​​which is captive to the connection portion 310, the movements of the locking part 380 relative to the connection portion 310 being a rotational movement around the winding axis A352. The structure of the locking part is not limiting. In a variant not shown, the locking part comprises a latch, which is captive to the fixing portion 310 and the movement of which relative to the fixing portion 310 is a translational movement in a plane orthogonal to the winding axis A18.

[0090] The embodiments and variations mentioned above can be combined with each other to generate new embodiments of the invention.

Claims

1. Roller shutter flange (300), the flange being configured to support a winding tube (20) of a protection installation (10), wherein: - the flange (300) comprises a fixing portion (310; 410) which extends along a plane orthogonal to a winding axis (A18), the fixing portion (310; 410) comprising a wall (314) defining a cylindrical-shaped imprint (312) centered on the winding axis (A18), the wall (314) delimiting an internal volume (V314) which is configured to receive an end bearing (22) of the winding tube (20) according to a movement of insertion of the bearing (22) into the imprint (312), the insertion movement being a translational movement parallel to the winding axis (A18), the bearing (22) having a shape complementary to the imprint (312), so that the bearing (22) is locked in rotation relative to the flange (300) around the winding axis (A18), - the fixing portion (310;410) also comprises an opening (316; 416), which is formed through the wall (314) and which opens into the internal volume (V314), - the flange (300) comprises a locking part (380; 480), which is movable relative to the fixing portion (310; 410) between a locking position, in which a blocking portion (386) of the locking part (380; 480) protrudes from the opening (316; 416) into the internal volume (V314) of the imprint (312), and a withdrawn position, in which the blocking portion (386) does not protrude into the internal volume (V314), and - the blocking portion (386) is configured to be received in a complementary hollow (22A), formed in the bearing (22), so as to prevent translational movements of the bearing (22) relative to the fixing portion (310) when the bearing (22) is received in the imprint (312) and the locking part (380; 480) is in the locking position.; 2. Roller shutter flange (300) according to claim 1, wherein: - the locking part (380) also comprises a control tab (384), which is configured to be actuated by a user, so as to move the locking part (380) between its withdrawn position and its locking position, - the fixing portion (310) comprises recesses (392), which are arranged to receive a portion of the tab (384) when the locking part (380) is either in the assembled position, or in the locked position, or in the withdrawn position, so as to index the movements of the locking portion (380) relative to the fixing portion (310).

3. Roller shutter flange (300) according to any one of claims 1 or 2, wherein: - the locking part (380; 480) comprises a ring (382; 482), which is arranged on an external side of the wall (314) and which is guided in rotation relative to the fixing portion (310; 410) around the winding axis (A18), the external side of the wall (314) being located on the opposite side of the internal volume (V314), - the blocking portion (386) is a protuberance, which is provided projecting from the ring (382; 482), the blocking portion (386) extends from the ring (382; 482) centripetally to the winding axis (A18), - the opening (316) is provided in a plane transverse ... the winding axis (A18), - the locking and retracting positions are angular positions of the ring (382) relative to the fixing portion (310) around the winding axis (A18).

4. Roller shutter flange (300) according to claim 3, wherein: - the locking part (380; 480) also comprises a control tab (384; 484), which is connected to the ring (382; 482) and which is configured to be actuated by a user, so as to move the locking part (380; 480) between its withdrawn position and its locking position, - the flange (300) comprises inscriptions, for example pictograms and / or alphanumeric characters, which are arranged so as to indicate to the user, depending on an angular position of the control tab (384; 484) around the winding axis (A18), whether the locking part (380) is in one or the other of the locking position or the withdrawn position.

5. Roller shutter flange (300) according to any one of claims 3 or 4, wherein: - the wall (314) extends, parallel to the winding axis (A18), between a front side, which is geometrically carried by a front plane transverse to the winding axis (A18), and a rear side, which is opposite the front side and which is carried by a rear plane transverse to the winding axis (A18), - the fixing portion (310; 410) comprises rear stops (320), which are integral with the wall (314), which are located on the external side of the wall (314) and which are carried by the rear plane, - the fixing portion (310; 410) comprises front stops (322; 422), which extend projecting from the rest of the fixing portion, which are located on the external side of the wall (314) and which are geometrically carried by the front plane, - the front stops (322;422) and the rear stops (320) are axially offset, along the winding axis (A18), so as to form between them an annular volume (V324) for receiving the ring (382; 482), the flange (300) being in an assembled configuration when the ring (382; 482) is received in the annular volume (V324), - the ring (382; 482) comprises notches (388; 488), which are aligned with the front stops (322; 422) when the flange (300) is in the assembled configuration, so that the locking part (380; 480) is movable relative to the fixing portion (310) according to a disassembly movement (F390), the disassembly movement being a translation movement parallel to the winding axis (A18) oriented from the rear side of the wall (314) to the front side of the wall (314), the locking part (380; 480) being in an assembled position when the flange (300) is in the assembled configuration and the notches (388;488) are aligned with the front stops (322; 422).; 6. Roller shutter flange (300) according to claim 5, wherein: - while the flange (300) is in the assembled configuration, the movements of the locking part (380) between the assembled position, the removed position and the locking position are indexed.

7. Roller shutter flange (300) according to any one of claims 5 or 6, wherein: - the locking part (480) comprises an axial protrusion (490), which is provided projecting from a front face (492) of the locking part (480), the front face (492) being oriented towards the front stops (422) when the locking part (480) is received in the annular volume (V324), - the axial protrusion (490) is associated with one of the front stops (422) and cooperates with the associated front stop (422), in particular by complementarity of shapes, so as to index the movements of the locking part (480) between the assembled position and the locking position.

8. Roller shutter flange (300) according to claim 7, wherein: - the axial protrusion (490) has a ramp shape and provides a front portion (496A) and a rear portion (496B), which are angularly offset around the winding axis, the front portion (496A) facing the associated front stop (422) when the locking part (480) is in the assembled position, while the rear portion (496B) faces the associated front stop (422) when the locking part (480) is in the locking position, - the front portion (496A) of the axial protrusion (490) has a thickness less than a thickness of the rear portion, so that: • when the locking part (480) is in the assembled position, the axial protrusion does not prevent the locking part (480) from moving; assembled position to the locking position,the locking part (480) and / or the fixing portion (410) being configured to deform elastically while the upper face slides on the associated front stop (422), • when the locking part (480) is in the locking position, the axial protuberance (490) prevents the movement of the locking part (480) from the locking position to the assembled position, the rear portion (496B) of the axial protuberance (490) coming to bear against the associated front stop (422), the axial protuberance (490) and the associated front stop (422) together forming a non-return member., 9. Mounting subassembly (400), comprising: - two flanges (300), and - 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), in which: - the end bearing (22) is received in the internal volume (V314) of the imprint (312) of one of the flanges (300), this flange (300) being according to any one of claims 1 to 8.

10. Protective installation (10), in particular for a roller shutter, comprising: - a mounting subassembly (400) according to claim 9, and - a protective screen (24), in particular a roller shutter apron, which is attached to the tube (20) and which is configured to wrap around the tube (20) or unwind from the tube (20), depending on the rotational movements of the tube (20), in which: - the flanges (300) are secured to a wall (12) and are located above an opening (14) made in this wall.

11. Method for assembling a mounting subassembly according to claim 9, the assembly method comprising the successive steps of: a) inserting the bearing (22) into the cavity (312) according to the insertion movement parallel to the winding axis (A18), while the locking portion (386) does not protrude into the internal volume (V314) of the cavity (312), b) then, moving the locking member into the locking position, so as to prevent translational movements of the bearing (22) relative to the fixing portion (310) along the winding axis (A18).

12. Assembly method according to claim 11, in which the flange (300) is according to any one of claims 5 to 8, and the assembly method comprises the following steps, prior to step a), of assembling the flange (300): - the locking part (380) being initially separated from the fixing portion (310), the ring (382) is placed opposite the front side of the wall (314), the notches (388) being angularly aligned with the front stops (322), - then, the ring (382) is brought closer to the fixing portion (310) in a mounting movement, opposite to the dismantling movement, the front stops (322) crossing the notches (388), until the ring (382) is in abutment against the rear stops (320), the flange (300) then being in the configuration assembled, while the locking part (380) is in the assembled position, - then, the locking part (380) is moved from the assembled position to the removed position,so as to capture the ring (382) in the annular volume (V324).,