EP4159969A1 - Guide inlet for a screen, in particular a roller shutter, and associated protective installation - Google Patents

Abstract

This tulip (100) for guiding a screen (40) of a protection installation, in particular a rolling shutter, comprises an internal portion (120) with a fixing part (124), configured to be assembled with a box ( 20) of the protection installation, and an internal pad (122), configured to guide the screen along a guide plane (P26) when an internal face (42A) of the screen slides on this internal pad. Advantageously, the fixing part comprises a tab (132), which extends along an adjustment axis orthogonal to the guide plane and which is configured to be fixed on an internal surface (28A) of a lower board (24A) of the trunk, and at least one breakable element (134A; 134B) which extends the tab along the adjustment axis, each breakable element being configured to adjust the position of the internal pad along the adjustment axis with respect to a front edge (25A ) of the bottom board when attaching the leg to the bottom board.

Description

The present invention relates to a guide tulip for a screen of a protection installation, in particular a roller shutter installation, and a protection installation comprising such a tulip.

In buildings whose walls include openings to the outside, these openings are generally equipped with a protection installation, for example a roller shutter installation, to protect the interior of the building from the sun and/or to prevent intrusions .

A protection installation generally comprises a box, fixed to the wall above the opening, in which is housed a tube for rolling up a protection screen, for example a rolling shutter apron, or else a solar fabric or a mosquito net. The tube is supported at each of its ends by a support mechanism, comprising for example a flange, and is pivotally mounted relative to the box. Under the command of a user, depending on the direction of rotation of the tube, the screen is rolled up or unrolled around the tube, and an unrolled portion of the screen, passing through a lower slot of the trunk, rises or falls in front the opening to partly or completely conceal it.

The screen is guided, along its lateral edges, by two slides, which are arranged opposite one another on either side of the opening. In new protection installations, each slide is equipped, at an upper end, with a flared-shaped part, called a tulip, to guide and help the sliding of the screen in the corresponding slide.

With each winding or unwinding movement of the screen, the latter rubs against the tulips, which wear out. After several years of use, for example after twenty or thirty years, the accumulated wear risks leading to breakage of the tulips, which must then be replaced. However, the replacement of the tulips generally requires dismantling a large part of the roller shutter installation, in particular the mechanism supporting the winding tube.

FR-2 951 772-A1 describes, for example, a tulip set on a leg, attached to both the flange and the wall. Replacing the socket requires removing the bracket, which amounts to removing the entire installation mechanism.

It is to these problems that the invention more particularly intends to remedy, by proposing a tulip which is adaptable to various types of trunk and easy to assemble.

To this end, the invention relates to a guide tulip for a screen of a protection installation, in particular a rolling shutter, the tulip comprising an internal portion with a fixing part, configured to be assembled with a box of the protection installation, and an internal pad, configured to guide the screen according to a guide plane when an internal face of the screen slides on this internal pad.

• la partie de fixation comprend une patte, qui s'étend selon un axe de réglage orthogonal au plan de guidage et qui est configurée pour être fixée sur une surface interne d'une planche inférieure du coffre,
• la partie de fixation comprend au moins un élément sécable qui prolonge la patte selon l'axe de réglage, chaque élément sécable étant configuré pour régler en position le patin interne selon l'axe de réglage par rapport à un bord avant de la planche inférieure lors de la fixation de la patte à la planche inférieure.

According to the invention:

• the fixing part comprises a lug, which extends along an adjustment axis orthogonal to the guide plane and which is configured to be fixed on an internal surface of a lower board of the boot,
• the attachment part comprises at least one breakable element which extends the tab along the adjustment axis, each breakable element being configured to adjust the position of the inner pad along the adjustment axis with respect to a front edge of the lower board when of the attachment of the leg to the lower board.

Thanks to the invention, the tulip can be fixed directly to the lower board independently of the existing mechanism, in particular without having to dismantle the mechanism supporting the winding tube, which is particularly practical. One or more tulips can thus be placed along the front edge of the lower board, according to the needs of the installer. In addition, the breakable tab makes it possible to adjust the position of the internal runner relative to the front edge of the lower board, so as to adapt to the various thicknesses of protective screen and/or other elements of the boot, for example thermal insulators. The tulip is thus adaptable to any type of trunk.

• La tulipe comprend en outre une portion externe, avec un patin externe configuré pour guider l'écran selon le plan de guidage lorsqu'une face externe de l'écran glisse sur ce patin externe, dans laquelle la portion externe est configurée pour être fixée sur une planche avant du coffre en regard du patin interne selon l'axe de réglage.
• Les éléments sécables sont configurés pour être séparés de la patte à la main et sans outil.
• Les éléments sécables et la patte sont séparés deux à deux par une ligne de pré-pliage de la partie de fixation
• La tulipe comprend, en outre, un patin latéral, qui est solidaire du patin interne et qui s'étend dans un plan transversal, orthogonal au bord avant de la planche inférieure.
• Le patin latéral et le patin interne sont sécables, de préférence à la main et sans outil.

According to advantageous but not obligatory aspects of the invention, such a tulip can incorporate one or more of the following characteristics taken in isolation or according to any technically admissible combination:

• The tulip also comprises an external portion, with an external pad configured to guide the screen along the guide plane when an external face of the screen slides on this external pad, in which the external portion is configured to be fixed on a front board of the trunk opposite the internal pad along the adjustment axis.
• The breakable elements are configured to be separated from the leg by hand and without tools.
• The breakable elements and the tab are separated two by two by a pre-folding line of the fixing part
• The tulip also comprises a lateral skid, which is integral with the internal skid and which extends in a transverse plane, orthogonal to the front edge of the lower board.
• The lateral pad and the internal pad are breakable, preferably by hand and without tools.

• un coffre, fixé à un mur au-dessus d'une ouverture ménagée dans ce mur, le coffre comprenant une planche inférieure avec un bord avant délimitant une fente de passage d'un écran,
• un tube d'enroulement de l'écran, le tube étant reçu dans le coffre et monté pivotant par rapport au coffre autour d'un axe principal du coffre,
• l'écran de protection, attaché au tube et configuré pour, sur commande d'un utilisateur, s'enrouler ou se dérouler autour du tube selon un sens de rotation du tube, une portion déroulée de l'écran passant par la fente, et
• au moins une tulipe telle que mentionnée ci-dessus,

dans laquelle la portion de fixation de chaque tulipe est fixée sur une face interne de la planche inférieure.The invention also relates to a protection installation, in particular for a roller shutter, comprising:

• a chest, fixed to a wall above an opening made in this wall, the chest comprising a lower board with a front edge delimiting a slot for passing a screen,
• a tube for rolling up the screen, the tube being received in the boot and pivotally mounted relative to the boot around a main axis of the boot,
• the protective screen, attached to the tube and configured to, on command from a user, roll up or unroll around the tube according to a direction of rotation of the tube, an unrolled portion of the screen passing through the slot, and
• at least one tulip as mentioned above,

wherein the fixing portion of each tulip is fixed on an internal face of the lower board.

Advantageously, the outer portion is fixed on an inner face of the front board of the boot, opposite the inner pad of the inner portion along the adjustment axis.

• [Fig 1] la figure 1 est une vue en perspective et en coupe partielle d'une installation de protection conforme à l'invention, comprenant une tulipe conforme à un premier mode de réalisation de l'invention et représentée dans une première configuration, certains éléments étant omis, dont un écran de protection ;
• [Fig 2] la figure 2 est une vue à plus grande échelle du détail II de la figure 1, l'écran de protection étant représenté ;
• [Fig 3] la figure 3 représente, sur deux inserts a) et b), un détail de l'installation de protection des figures 1 et 2, la tulipe étant respectivement dans une deuxième et une troisième configuration, et
• [Fig 4] la figure 4 est une vue analogue à la figure 3 a), représentant une tulipe conforme à un deuxième mode de réalisation de l'invention et représentée dans la première configuration.

The invention will be better understood, and other advantages thereof will appear more clearly in the light of the following description, of two embodiments of a tulip and of a roller shutter installation, in accordance with its principle, given solely by way of example and made with reference to the accompanying drawings, in which:

• [ Fig 1 ] there figure 1 is a view in perspective and in partial section of a protection installation according to the invention, comprising a socket according to a first embodiment of the invention and represented in a first configuration, certain elements being omitted, including a screen protection ;
• [ Fig 2 ] there figure 2 is a larger scale view of detail II of the figure 1 , the protective screen being shown;
• [ Fig.3 ] there picture 3 represents, on two inserts a) and b), a detail of the installation of protection of the figure 1 And 2 , the tulip being respectively in a second and a third configuration, and
• [ Fig 4 ] there figure 4 is a view analogous to picture 3 a) , representing a tulip according to a second embodiment of the invention and represented in the first configuration.

A protection installation 8 is partially represented on the figure 1 . The protection installation 8 is here a rolling shutter installation. The protection installation 8 is fixed to a wall 10, above an opening 12 formed in the wall 10. The wall 10 is assumed to be vertical, the description being made in relation to the orientation of the various elements represented on the figures, knowing that it may be otherwise in reality. A carpentry 14 is here received in the opening 12.

The protection installation 8 comprises a box 20, which is therefore here a roller shutter box. The trunk 20 has an elongated shape extending along a main axis A20. The trunk 20 is arranged above the opening 12, the main axis A20 here being horizontal. The trunk 20 comprises two side flanges, a single flange 22 being visible on the figure 1 , and an assembly of planks 24. The assembly of planks 24 here comprises four planks, with a lower plank 24A, which is substantially horizontal and connected to the carpentry 14, a front plank 24B, which is arranged against the wall 10 and is here vertical, an upper board 24C, which is shown here in dotted transparency to reveal the interior of the trunk 20, and a rear board 24D, which is parallel to the front board 24B.

The lower 24A, front 24B, upper 24C and rear 24D boards extend parallel to the main axis A20 and delimit an internal volume V20 of the trunk 20. The boards 24 are made of a synthetic polymer material, for example PVC, are here produced by hot extrusion of synthetic polymer material and advantageously have a honeycomb profile, which promotes the thermal insulation of the trunk 20.

The lower board 24A, here horizontal, comprises a front edge 25A, which is arranged parallel to the main axis A20 on the side of the front board 24B, while the front board 24B, here vertical, comprises a lower edge 25B, which is arranged parallel to and opposite the front edge 25A, the front edge 25A and the lower edge 25B delimiting a slot 26, formed between the lower board 24A and the front board 24B and through which the internal volume V20 opens downwards. The slot 26, which has an elongated shape and extends parallel to the main axis A20, is provided for the passage of a protective screen 40, described later and shown only on the figure 2 . The lower board 24A comprises an internal face 28A, which is oriented towards the internal volume V20, while the front board 24B comprises an internal face 28B, which is oriented towards the internal volume V20.

The protection installation 8 also comprises a tube 30 for rolling up the screen 40, the tube 30 being received in the internal volume V20. The tube 30 has a cylindrical shape extending along a longitudinal axis A30, is made of metal, for example steel, and is made here by bending a sheet. The winding tube 30 comprises two opposite ends. On the figure 1 , only one end 32 of the tube 30 is visible, this end 32 being supported by the flange 22 so that the winding tube 30 is pivotally mounted relative to the box 20, about its longitudinal axis A30, which is aligned with the main axis A20 of the box 20. Thus the winding tube 30 is received in the box 20 and is pivotally mounted relative to the box 20 around the main axis A20.

Screen 40, partially visible on the picture 2 , is here a roller shutter apron, comprising blades 42 hinged together. The screen 40 comprises an internal face 42A, which is here oriented towards the lower board 24A, and an external face 42B, opposite to the internal face 42A and here oriented towards the front board 24B.

The screen 40 is attached to the tube 30, for example by means of a lock as described in the application FR-3 099 515-A1 . The lock is not shown in the figures. Thus, when a user controls the rotation of the winding tube 30, either manually by means, for example, of a crank/pinion assembly or of a strap/pulley assembly, or automatically by means of a motor electric, the screen 40 is rolled up or unrolled around the tube 30 according to a direction of rotation of the tube 30, an unrolled portion of the screen 40, which passes through the slot 26, rising or falling in front of the opening 12 to conceal it partially or entirely.

The protection installation 8 also comprises a tulip 100, configured to guide the screen 40 during its movements through the slot 26, so that the screen 40 does not rub directly against the boards 24A and 24B.

The tulip 100 includes an outer portion 110, which is mounted on the front board 24B, and an inner portion 120, which is mounted on the lower board 24A. The socket 100 is made of an abrasion-resistant synthetic polymer material, for example poly-oxy-methylene, also called POM, and is produced for example by hot injection.

The internal portion 120 comprises an internal pad 122, which is here arranged between the front edge 25A of the lower board 24A and the front board 24B and which is configured so that the internal face 42A of the screen 40 slides thereon, so to guide screen 40 into slot 26 and to prevent screen 40 from rubbing against bottom board 24A.

A guide plane P26 is defined as being a plane parallel to the wall 10 and dividing the slot 26 into two. The guide plane P26 is therefore a median plane of the slot 26, here vertical and parallel to the front board 24B.

The protection installation 8 advantageously comprises two slides, which are arranged opposite one another on either side of the opening 12. The slides are not shown. The slides are aligned on the P26 guide plane.

The internal pad 122 is thus configured to guide the screen 40 according to the guide plane P26 when the internal face 42A of the screen 40 slides on the internal pad 122.

The internal shoe 122 advantageously has a shape that flares upwards, that is to say a shape that diverges with respect to the guide plane P26 as one moves away from the slot 26 in the internal volume V20.

The shape of the internal shoe 122 is not limiting.

The internal portion 120 also comprises a fixing part 124, configured to be assembled to the box 20 of the protection installation 8. The fixing part 124 comprises holes 126, which are distributed along the fixing part 124 and which are each configured to receive a respective fastener 128, here a screw. The fixing part 124 is assembled on the internal surface 28A of the lower board 24A, here by means of at least two assembly members 128, so that the internal shoe 122 is located between the front edge 25A and the lower edge 25B.

The fixing part 124 comprises a fixing tab 132, of elongated shape extending along an adjustment axis A132, the adjustment axis A132 being orthogonal to the guide plane P26, when the internal portion 120 is assembled to the trunk 20 in configuration of use, as shown in the figures. The mounting bracket 132 includes at least two mounting holes 126.

The fixing part 124 comprises at least one breakable part 134, which extends the lug 132 along the adjustment axis A132. In the example illustrated, the breakable part 134 comprises two breakable elements, with a first breakable element 134A and a second breakable element 134B interposed between the first breakable element 134A and the tab 132. Each breakable element 134A or 134B comprises at least one hole 126.

When assembling the internal portion 120 to the lower board 24A, an installer can cut one or more of the breakable elements 134A and 134B, so as to shorten the fixing part 124 and thus adjust the position of the internal pad 122 according to the adjustment axis A132 relative to the front edge 25A of the lower board 24A. On the figure 1 And 2 , the tulip 100 is in a first so-called "complete" configuration, in which the two breakable elements 134A and 134B are still attached to the leg 132 and the screws 128 are in place in the two end holes of a series of four holes 126 which extends along axis A132.

On insert a) of picture 3 , the socket 100 is in a second so-called "shortened" configuration, in which the first breakable element 134A has been cut out, only the second breakable element 134B still being attached to the tab 132. The two screws 128 are in place in the two holes end of a series of three holes 126 which extends along the axis A132.

On insert b) of the picture 3 , the socket 100 is in a third so-called “minimal” configuration, in which the two breakable elements 134B and 134A have been cut out. The fixing part 124 is here reduced to the fixing lug 132. The two screws 128 are in place in the two holes of the series of two holes 126 which extends along the axis A132 in the lug 132.

Preferably, the breakable elements 134A and 134B are configured to be separated from the leg 132 by hand and without tools, by the installer. To do this, the tab 132 and the breakable elements 134A and 134B are separated by pre-folding lines 133 which facilitate the folding and cutting of the fastening part 124, each at its own level. Of course, the installer can use a tool such as shears or cutting pliers.

The outer portion 110 also includes an outer pad 112, which is configured so that the outer face 42B of the screen 40 slides thereon, during the movements of the screen 40, to prevent the screen 40 from rubbing against the bottom edge 25B. Thus the outer shoe 112 is configured to guide the screen 40 along the guide plane P26 when the outer face 42B of the screen 40 slides on the outer shoe 112.

The outer portion 110 is configured to be fixed on the inner face 28B of the front board 24B, here by means of a screw 128, so that the outer pad 112 is opposite the inner pad 122 along the axis of adjustment A132 . Thus, when the screen 40 passes through the slot 26, whether the screen 40 slides on the internal pad 122 or on the external pad 112, the screen 40 is always guided according to the guide plane P26, and this whatever the position of the tulip 100 along the slot 26.

A tulip 200 according to a second embodiment of the invention is shown in figure 4 . Elements similar to those of the first embodiment bear the same references and operate in the same way. In the following, the differences between the second embodiment and the first embodiment are mainly described.

Tulip 200 includes a side pad 210, which is integral with internal pad 122 and which extends in a transverse plane P210, orthogonal to main axis A20. In other words the transverse plane 210 is orthogonal to the front edge 25A of the lower board 24A. The side pad 210 is configured so that the ends of the blades 42 of the screen 40 slide thereon, so as to guide the screen 40 during its movements and to prevent the screen from rubbing against other parts of the protection installation 8, for example against the flange 22.

Advantageously, the lateral pad 210 and the internal pad 122 are one-piece and breakable, preferably by hand and without tools.

Thus when the installer wishes to fix the tulip 200 to one end of the slot 26, the installer leaves the side pad 210 attached to the internal pad 122. The side pad 210 is for example placed in abutment against the flange 22.

When the user wishes to fix the tulip 200 to another location of his choice along the slot 26, the user separates the side pad 210 from the internal pad 122 and then finds himself with a tulip similar to the tulip 100 of the first mode. of achievement.

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

Claims (8)

Tulip (100; 200) for guiding a screen (40) of a protection installation (8), in particular a rolling shutter, the tulip comprising an internal portion (120) with a fixing part (124), configured to be assembled to a box (20) of the protection installation, and an internal shoe (122), configured to guide the screen (40) according to a guide plane (P26) when an internal face (42A) of the screen slides on this internal pad, characterized in that : - the fixing part (124) comprises a lug (132), which extends along an adjustment axis (A132) orthogonal to the guide plane (P26) and which is configured to be fixed on an internal surface (28A) d a lower board (24A) of the trunk, - the fixing part (124) comprises at least one breakable element (134A; 134B) which extends the lug along the adjustment axis, each breakable element being configured to adjust the position of the internal pad (122) along the axis of adjustment (A132) relative to a front edge (25A) of the lower board (24A) when fixing the leg to the lower board (24A). Tulip (100; 200) according to claim 1, further comprising an outer portion (110), with an outer shoe (112) configured to guide the screen (40) along the guide plane (P26) when an outer face (42B) of the screen (40) slides on this outer runner, in which the outer portion is configured to be fixed on a front board (24B) of the box (20) facing the inner runner (122) along the axis setting (A138). Tulip (100; 200) according to any one of claims 1 or 2, in which the breakable elements (134A; 134B) are configured to be separated from the leg (132) by hand and without tools. Tulip (100; 200) according to claim 3, in which the breakable elements (134A, 134B) and the leg (132) are separated two by two by a pre-folding line (133) of the fixing part (124) Tulip (200) according to any one of Claims 1 to 4, further comprising a lateral shoe (210), which is integral with the internal shoe (122) and which extends in a transverse plane (P210), orthogonal to the edge front (24A) of the lower board (24A). Tulip (200) according to Claim 5, in which the lateral pad (210) and the internal pad (122) can be cut, preferably by hand and without tools. Protective installation (8), in particular for roller shutters, comprising: - a chest (20), fixed to a wall (10) above an opening (12) made in this wall, the chest comprising a lower board (24A) with a front edge (25A) delimiting a slot (26 ) passage of a screen (40), - a tube (30) for rolling up the screen, the tube being received in the boot and pivotally mounted relative to the boot around a main axis (A20) of the boot, - the protective screen (40), attached to the tube (30) and configured to, on command from a user, roll up or unroll around the tube according to a direction of rotation of the tube, an unrolled portion of the screen passing through the slot (26), and - at least one tulip (100; 200) according to any one of the preceding claims, wherein the fixing portion (124) of each tulip is fixed on an internal face (28A) of the lower board (24A). Protection installation (8) according to claim 7, in which the socket (100; 200) is according to claim 2, and the external portion (110) is fixed on an internal face (28B) of the front board (24B) of the trunk (20), opposite the internal shoe (122) of the internal portion (120) along the adjustment axis (A132).

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