FR3051215A1 - MOUNTING DEVICE FOR A WINDING SHAFT OF A SHUTTER SHUTTER INSTALLATION AND A SHUTTER INSTALLATION - Google Patents

Abstract

The invention relates to a mounting device for a winding shaft (6) of a shutter installation (2). The device comprises a casing (4.2) of box (4), comprising means (40, 42) for fixing a flange (8) for guiding the shaft in one or the other of two positions along an axis ( X4) perpendicular to the cheek, and the flange. These two positions correspond to the installation on traditional slides or on standard renovation slides. The device further comprises a connecting lug (12), for directly connecting the cheek to a slide (16) of the installation, this tab being distinct from the cheek and designed to allow the attachment of a removable shim (14). .

Description

MOUNTING DEVICE FOR A WINDING SHAFT OF A SHUTTER SHUTTER INSTALLATION AND A SHUTTER INSTALLATION

The present invention relates to a mounting device for a winding shaft of a rolling shutter installation, and a rolling shutter installation comprising such a device.

In the field of roller shutters, there are two types of installation: so-called rolling shutters of renovation and so-called traditional shutters.

Roller shutters are roller shutters designed to fit on existing windows or doors that were not originally designed for roller shutters. They are therefore adaptable to the majority of existing door or window configurations. The traditional roller shutters are intended for new constructions via independent boxes connected to the shell.

A rolling shutter installation includes two U-section lateral slides that guide the movement of the deck. The apron is attached to a rotating shaft around which it wraps when opening the shutter. This rotating shaft is housed inside a box and is guided by two flanges attached to the cheeks of the box. The distance between the flanges depends on the width of the deck and therefore the distance between the two wings.

In known manner, the cheeks of the box are each connected to a respective slide by a connecting lug engaged inside the slide. In renovation, this link is always monobloc with the cheek made of aluminum, while in a traditional installation, the leg and the cheek are rather distinct.

The connecting lugs provided for "traditional" slides are less thick than those planned for the "renovation" slides because the renovation slides are less compact, in the sense of the width of the opening, than the traditional slides. Indeed, the width of the wings of renovation is of the order of 27 mm to be able to receive the connecting lugs cheeks renovation, while the width of the traditional slides is of the order of 10 mm. For the same width of opening, the distance between the bottom of two "renovation" slides is less than that between the bottom of two "traditional" slides. Thus, a traditional installation presents a greater daylight than a renovation installation.

Currently, roller shutters are systematically installed with renovation slides. The aluminum boxes are therefore designed to fit only a system with renovation slides. The cheeks of these boxes are such that the flange can be fixed only at a distance from the outer surface of the cheek, this distance being adapted to the width of the wings of renovation. In addition, the one-piece link with the cheek is not compatible with traditional slides.

Therefore, the current concepts do not allow to equip a renovation installation with traditional scenes with greater daylight. FR-A-2 761 728 discloses a device with which the distance between the flange and the cheek can be adjusted. This device also comprises a connecting lug between the flange and the slide. This connecting lug is fixed to the flange and down into a reservation of the slide to ensure the alignment of the flange relative to the slide. However, the connecting lug of this device is designed for only one type of slides. It is these drawbacks that the invention more particularly intends to remedy by proposing a mounting device for a winding shaft that can be used in a retrofit installation with traditional slides. For this purpose the invention relates to a mounting device for a winding shaft of a rolling shutter installation. This device comprises: a box cheek, comprising means for fixing a guide flange of the shaft in one or the other of two positions along an axis perpendicular to the cheek, and - the flange.

According to the invention, the device comprises a connecting lug, for directly connecting the cheek to a slide of the installation, this tab being distinct from the cheek and designed to allow the attachment of a removable shim, so that the device is compatible with two types of slides.

Thanks to the invention, the manufacturers of traditional roller shutters and renovation can use only one type of slides, namely traditional slides, for both types of installation. This is more economical and facilitates inventory management. Indeed, the mounting device according to the invention is compatible with both types of slides, respectively renovation and traditional. This mounting device therefore has the advantage that traditional slides can be used for a renovation installation. In practice, the link is designed for installation on traditional compact slides. However, the connecting lug can also be used in an installation with wide slides. It suffices for that to fix a wedge on it. The cheek of the device is compatible with both traditional slides with renovation slides because it allows the mounting of a flange to two different positions along the axis perpendicular to the cheek.

According to advantageous but non-compulsory aspects of the invention, such a mounting device may comprise any of the following features, taken in any technically permissible combination: the connecting lug comprises at least one hole for the passage of a fixing screw to the hold. - The connecting lug comprises at least one receiving hole of a finger complementary to the shim. - The cheek comprises a support member of a tulip. - The member is a pin, around which the tulip is intended to be fitted and which is arranged projecting with respect to an inner face of the cheek. - The cheek comprises a lug for externally covering a board belonging to a running part of the box and comprising a visualization marking of the positioning point of a fastening screw to the board. - The link is designed to be releasably attached to a tulip. - The connecting lug defines an opening for cooperating with a resilient locking tab of the tulip. - The cheek comprises a receiving slide of the connecting leg. The invention also relates to a rolling shutter installation comprising a mounting device as described above. The invention and other advantages thereof will appear more clearly in the light of the following description of two embodiments of a mounting device according to its principle, given solely by way of example and made in reference to the drawings in which: - Figure 1 is a partial perspective view of a rolling shutter installation of a first type, comprising a mounting device according to a first embodiment of the invention, - the figure 2 is a view according to the arrow II of FIG. 1; FIG. 3 is an exploded perspective view of the mounting device belonging to the installation of FIG. 1; FIG. 4 is a view along the arrow IV of FIG. FIG. 5 is a section in the plane of the line VV of FIG. 4; FIG. 6 is a view similar to FIG. 1 showing a roller shutter installation of a second type, comprising a device of FIG. compliant mounting a second embodiment of the invention. FIG. 7 is a view similar to FIG. 3 of the mounting device shown in FIG. 6; FIG. 8 is a view along arrow VIII of FIG. 6, and FIG. 9 is a section in the plane of FIG. line IX-IX of FIG.

A rolling shutter installation 2 according to a first embodiment is shown in FIGS. 1 to 5. The installation 2 is a so-called renovation installation. The installation 2 comprises a box 4 installed in the upper part of an opening defined in a building, such as a door or a window. The casing 4 comprises a current portion 4.1 of generally rectangular section and two aluminum end flanges 4.2, only one of which is shown in the figures. Advantageously, the current part 4.1 of the box 4 is also made of aluminum. It consists of an assembly of planks.

The casing 4 houses a winding shaft 6 of a rolling shutter apron, not shown. The shaft 6 is supported inside the box 4 by two end flanges 8 which are respectively fixed to the flanges 4.2 of the box 4. The flanges 8 are arranged perpendicularly to an axis of rotation of the shaft 6. In the example, the two flanges 8 are designed specifically for a renovation installation. The installation 2 also comprises two lateral slides 16 with a U-shaped section. These two slides 16 therefore comprise two parallel walls which guide the movement of the apron during the opening and closing of the shutter. The distance between the flanges 8 depends on the width of the deck and therefore the distance between the two slides 16.

The two slides 16 are backstage specific to a renovation installation. As shown in Figure 2, each slide 16 comprises two compartments 16a and 16b separated by a partition 16c perpendicular to the two parallel walls of the slide 16. This partition 16c forms the bottom of the slide. When closing the shutter, the apron blades are received in the compartment 16b slides 16.

Each flange 8 forms with a cheek 4.2 a device for mounting the shaft 6 inside the box 4. The cheek 4.2 comprises first fixing means between the cheek 4.2 and the flange 8. These first fastening means allow to position the flange 8 in a certain position along an axis X4 perpendicular to the cheek 4.2. In this position, the distance d1, measured parallel to the axis X4, between the flange 8 and the outer surface S4 of the flange 4.2 is of the order of 27 mm, which typically corresponds to the desired distance for an installation of renovation. The axis X4 is parallel to an axis of rotation of the shaft 6.

The first fastening means comprise drums 40 against which the flange 8 is intended to abut. The barrels 40 protrude from the cheek 4.2 towards the inside of the casing 4, that is to say in the direction of the opposite cheek. In the example, these barrels 40 are three in number. Each of the drums 40 delimits a tapping for receiving a screw 41 and the flange 8 defines openings provided for the passage of the screws 41. The flange 8 can thus be screwed to the barrels 40 of the cheek 4.2.

Two tulips 10 guide the apron backstage 16 when closing the shutter. Only one of these two tulips 10 is shown in the figures. The two tulips 10 are arranged at the two longitudinal ends of the box 4.

As can be seen in FIG. 3, the flange 4.2 comprises a support member for the tulip 10. In the example, this support member is a pin 44 around which the tulip 10 is intended to be fitted. The tulip 10 thus delimits a complementary cavity, not shown, intended to receive the pin 44. The pin 44 protrudes with respect to an inner face of the cheek 4.2. It is of non-circular section to prevent rotation of the tulip 10.

In what follows, only one of the two tulips 10 is described, the other being identical. Both tulips 10 are plastic. As seen in Figure 5, the tulip 10 comprises a light 100 which, when the tulip is mounted on the cheek 4.2, extends in a vertical direction. The tulip 10 also comprises an elastic tongue 102 projecting inside the lumen 100. The elastic nature of the tongue 102 is obtained thanks to the elasticity of the constituent material of the tulip, whose Young's modulus is less than 3000 MPa and thanks to the elongated shape of the tongue 102. Moreover, the tulip 10 comprises a hole 104 opening perpendicularly to the inside of the light 100.

As shown in Figure 3, each cheek 4.2 is connected to a corresponding slide 16 by means of a connecting lug 12. Advantageously, the lug 12 is made of steel. It is therefore more flexible than a tab formed in one piece with the cheek, as is the case in some devices of the prior art. Unlike the device described in FR-A-2 761 728, the connection between the cheek 4.2 and the slide 16 is direct, that is to say that the lug 12 is intended to be in contact with the cheek 4.2 .

The connecting lug 12 is distinct from the cheek 4.2. It is designed to allow the fixing of a removable shim 14. The removable shim 14 is fixed to the lug 12 only for a renovation installation, as described in Figures 1 to 5.

As can be seen in FIG. 3, the tab 12 is received, on the one hand, inside a slide 46 formed in the cheek 4.2 and, on the other hand, inside the compartment 16a of the slide 16 The slideway 46 is formed by two elements 46.1 and 46.2 which each delimit a not visible groove in the figures, the width of which is substantially identical to the thickness of the connecting lug 12. The lug 12 is thus received inside. respective grooves of the elements 46.1 and 46.2 in mounted configuration of the device. In other words, the tab 12 is provided to be slid between the two elements 46.1 and 46.2.

As seen in Figure 3, the tab 12 comprises first through holes 120 and second through holes 124 of larger diameter. The holes 120 and 124 are in the example two in number. The tab 12 also defines a rectangular opening 122 which has no function when the tab 12 is installed in a renovation installation.

The shim 14 can be screwed onto the lug 12. In fact, the shim 14 delimits two screwing barrels 144 inside which screws 18 are received. The screws 18 pass through the holes 120 of the lug 12. As can be seen in the figures 3 and 5, the wedge 14 comprises two fingers 146 intended to be engaged in the complementary holes 124 of the tab 12. In addition, the wedge 14 comprises a plate 140 clearly visible in Figure 3 and defining a rectangular opening 142 intended to cooperate with the elastic tongue 102 of the tulip 10. This plate 140 is intended to be engaged inside the light 100 of the tulip 10.

The shim 14 is clipped to the tulip 10 as follows. The wafer 140 is engaged from below upwards inside the lumen 100, which causes the elastic deformation of the tongue 102 towards the outside of the lumen 100. When the opening 142 reaches the same level as the tongue 102 , this latter resumes its initial position by elastic return of the material and is wedged against a wall of the opening 142. As shown in Figure 5, the tongue 102 then opposes the movement of the wafer 140 downwards, that's why we talk about a locking tab. The orifice 104 allows the introduction of a tool, such as a screwdriver, to disengage the tongue 102 from the opening 142 and thus detach the wedge 14 and the tulip 10 by a relative translation movement between the two parts 10 and 14. The tongue 102 then forms elastic fastening means which cooperate with complementary means formed by the opening 142.

Furthermore, because of the small thickness of the cheek 4.2, the screwing of the cheek 4.2 on a board of the current portion 4.1 of the box 4 can be difficult. This is why, as can be seen in FIG. 3, the cheek 4.2 comprises a lug 48 for fixing the cheek 4.2 to the current portion 4.1 of the casing 4. This lug 48 is intended to cover a board of the casing 4 externally to to be screwed. The lug 48 therefore extends perpendicularly to the thickness of the cheek 4.2. The lug 48 delimits a hole for receiving a screw 49 for fixing to a board of the box 4. The lug 48 is arranged so that the screw 49 does not interfere with the winding or unfolding of the apron. inside the box. The lug 48 thus allows the installer to visualize the positioning point of the screw 49 of immobilization of the board and thus to guide the setter when fixing the cheek 4.2.

A rolling shutter installation 2 'according to a second embodiment is shown in Figures 6 to 9. The installation 2' is a traditional slide installation. In what follows, only the differences with respect to the first embodiment are mentioned. In addition, the parts of the installation 2 'which are identical to that of the installation 2 retain their numerical reference. On the other hand, the parts of the installation 2 'which are different but comparable to those of the installation 2 bear numerical references followed by a premium ('). The installation 2 'comprises slides 16' of reduced width relative to the slides 16 of the installation 2. More precisely, the slides 16 'are more compact, in the width direction of the opening, than the slides 16 Indeed, unlike the slides 16, the slides 16 'do not include a compartment 16a.

Thus, the installation comprises flanges 8 'whose positioning along the axis X4 perpendicular to the cheek 4.2 is different from that of the flanges 8. More precisely, as shown in Figure 9, the distance d2 between the flange 8' and the cheek 4.2 is less than the distance d1. The distance d2 is of the order of 10 mm, which corresponds to the desired distance for a rolling shutter installation on traditional slides.

In the example, the cheek 4.2 comprises second means for fixing the flange 8 '. These second fixing means are distinct from the first fastening means comprising the drums 40. As a variant not shown, the first fastening means and the second fixing means are combined, in a manner comparable to the systems described in FR-A-2. 761,728 and EP-A-1,835,123.

According to another variant not shown, the same flanges are used for both types of installation. Such flanges are then indented to allow the passage of the screw drums 40 for mounting on renovation slides.

The second fixing means comprise drums 42 which are comparable to the drums 40, but which are shorter than the drums 40. In the example, the drums 40 are two in number. Like the drums 40, the drums 42 each delimit a receiving shaft of a screw 41. These screws 41 pass through notches formed in the flange 8 '.

The first fixing means comprising the barrels 40 and the second fixing means comprising the drums 42 together form means for fixing a flange of the flanges 8 and 8 'in one or other of two respective positions along the axis X4.

In the case of a renovation installation, the drums 42 are non-functional, whereas, in the case of a traditional installation, it is the drums 40 which are non-functional. However, the presence of the drums 40 and 42 on the same cheek has the advantage that the cheek can be used indifferently for a retrofit installation or for installation on traditional slides.

In the case of installation on traditional slides, the holes 120 and 124 are non-functional. However, this allows the connecting lug 12 to be identical for a renovation installation and for a traditional installation. The installation 2 'is equipped with two tulips 10' adapted to the width of the slides 16 '. As can be seen in FIG. 9, each of these two tulips 10 'delimit a passageway 100 of the connecting lug 12. Each tulip 10' also comprises a tongue 102 projecting inside the light 100. In this mode embodiment, each tulip 10 'is provided to be attached with a corresponding connecting lug 12. Furthermore, the tulip 10 'delimits an orifice 104 which opens perpendicularly to the inside of the slot 100, on the opposite side to the elastic tongue 102.

The connecting lug 12 is clipped with the tulip 10 'as follows. The connecting lug 12 is inserted from below upwards inside the light 100, which has the effect of elastically deforming the tongue 102. As soon as the opening 122 of the lug 12 reaches the same level as the tongue 102 , it then resumes its initial shape by elastic return and is jammed inside the opening 122. The orifice 104 allows the introduction of a tool, such as a screwdriver, to disengage the tongue 102 of the opening 122 and thus detach the connecting lug 12 and the tulip 10 '.

The connecting lug 12 and the cheek 4.2 of the mounting device are common to both types of slides, renovation and traditional respectively. Thus, the device is compatible with both types of installation. It can, in particular, be mounted on a retrofit installation traditional slides, which has the advantage of having a greater daylight. In addition, the type of slides used by traditional roller shutter manufacturers and remodelers can therefore be standardized, which facilitates inventory management.

The characteristics of the variants and embodiments envisaged above can be combined with each other to generate new embodiments of the invention.

Claims (10)

1. Mounting device for a winding shaft (6) of a shutter installation (2; 2 '), the device comprising: a casing (4.2) of box (4), comprising means (40, 42 ) for fixing a flange (8; 8 ') for guiding the shaft in one or the other of two positions along an axis (X4) perpendicular to the flange, and - the flange, characterized in that the device comprises a connecting lug (12), for directly connecting the cheek to a slide (16; 16 ') of the installation, this tab being distinct from the cheek and designed to allow the fixing of a removable shim (14), so that the device is compatible with two types of slides (16; 16 '). 2. Device according to claim 1, wherein the connecting lug (12) comprises at least one hole (120) for the passage of a screw (18) for attachment to the shim. 3. Device according to claim 1 or 2, wherein the connecting lug comprises at least one hole (124) for receiving a complementary finger (146) of the shim. 4. Device according to one of the preceding claims, wherein the flange (4.2) comprises a member (44) for supporting a tulip (10; 10 '). 5. Device according to claim 4, wherein the member is a pin (44), around which the tulip (10; 10 ') is intended to be fitted and which is arranged projecting with respect to an inner face of the cheek (4.2). 6. Device according to one of the preceding claims, wherein the cheek comprises a lug (48) for externally covering a board belonging to a running portion (4.1) of the box (4) and comprising a positioning point display marking a screw (49) for fastening to the board. 7. Device according to one of the preceding claims, wherein the connecting lug (12) is adapted to be removably attached to a tulip (10; 10 '). 8. Device according to claim 7, wherein the connecting lug (12) defines an opening (122) for cooperating with an elastic tongue (102) for blocking the tulip (10; 10 '). 9. Device according to one of the preceding claims, wherein the cheek (4.2) comprises a slide (46) for receiving the connecting lug (12). 10. Roller shutter installation, comprising a mounting device according to one of the preceding claims.