FR3053721A1 - DEVICE FOR MAINTAINING THE END OF A SHUTTER APRON BLADE, BLADE AND SHUTTER - Google Patents

Abstract

Device for holding the end of a blade (1) of rolling shutter apron, inside a slide (4) of the roller shutter, in the form of a nozzle (2) intended to be secured to one end of said blade (1) and can be moved in the slide (4), and comprising at least one element (3) projecting from the plane of the apron to abut behind a retaining means (5) that comprises the slide (4), the element (3) being movable so as to be able to move between two extreme positions, a first retracted in the thickness of the blade (1), and a second protruding from the plane of the blade (1) to take place behind the retaining means (5). The moving means consists of a lug (3) slidably mounted, perpendicular to the plane of the blade (1), and resiliently outputted.

Description

© Publication number: 3,053,721 (to be used only for reproduction orders) (© National registration number: 16 56427 ® FRENCH REPUBLIC

NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY

COURBEVOIE © IntCI ⁸

E 06 B 9/58 (2017.01), E 06 B 9/15

A1 PATENT APPLICATION

©) Date of filing: 05.07.16. ® Applicant (s): END CAPS FOR ROUTE SHUTTERS (® Priority: LANTS (EVR) Limited liability company - FR. @ Inventor (s): MARANDEL BERNARD. (© Date of public availability of the request: 12.01.18 Bulletin 18/02. ®) List of documents cited in the report preliminary research: Refer to end of present booklet (® References to other national documents ® Holder (s): END CAPS FOR ROLLER SHUTTERS related: (EVR) Limited liability company. ®) Extension request (s): ® Agent (s): CABINET BLEGER RHEIN POUPON.

VX) DEVICE FOR HOLDING THE END OF A ROLLER SHUTTER APRON BLADE, BLADE AND ROLLER SHUTTER.

FR 3 053 721 - A1 (g) Device for holding the end of a blade (1) of a roller shutter apron, inside a slide (4) of the roller shutter, in the form of '' a nozzle (2) intended to be secured to one end of said blade (1) and to be able to be moved in the slide (4), and comprising at least one element (3) projecting from the plane of the deck to come into abutment behind a retaining means (5) that comprises the slide (4), the element (3) being movable so as to be able to move between two extreme positions, a first retracted into the thickness of the blade (1), and a second projecting from the plane of the blade (1) to take place behind the retaining means (5). The movable means consists of a lug (3) mounted movable in sliding, perpendicular to the plane of the blade (1), and biased at the output.

Device for holding the end of a roller shutter apron blade, blade and roller shutter

The present invention relates to a device for holding the end of a roller shutter apron blade, inside a slide of said roller shutter, in which said end is provided able to move.

The present invention also relates to a rolling shutter apron blade equipped with said holding device, as well as a rolling shutter comprising an apron whose blades are equipped with said holding device.

It is known that the shutter blades, in particular, but not limited to, when they are made of a material such as PVC, have a certain flexibility. Depending on their width, these blades have a critical length beyond which they are capable of flaming sufficiently large to cause the ends of the blades to escape from the wings, under the effect of the wind, or of malicious action.

To overcome this drawback, it has been proposed to equip the ends of at least certain blades with a nozzle having an element projecting from the plane of the deck, and capable of coming, in the slide where said ends move, in abutment behind a retaining element such as a groove formed in a direction perpendicular to said plane of the deck. Such a device is for example described in the document FR 2 807 465.

This device has drawbacks, however, and in particular in that the projecting elements constitute obstacles to the winding of the deck, and generate increased bulk.

This problem of space requirement for winding has been solved in documents FR 2 749 880 and EP 1 672 163, in which there is proposed a blade tip comprising a movable or deformable element, so as to come into abutment at the inside the slide. According to these documents, the endpiece is equipped with a lever mounted to pivot about an axis parallel to the blade which carries said endpiece, so as to be able to move angularly between two extreme positions, a first retracted into the thickness of the blade by being parallel to the latter, and a second perpendicular or almost perpendicular to said plane of the blade so that at least one of its ends protrudes from said plane of the blade and therefore from that of the deck, to bear behind a retaining means backstage. The second position is reached either by gravity or by the use of elastic means, while the first position is taken automatically when the deck is rolled up.

If these devices make it possible to remedy the problem of space requirement in the winding, they nevertheless have drawbacks, in addition to the risk of seizing up at the level of the pivoting means, of complexity of manufacture and implementation, and consequently of cost.

The object of the present invention is to propose a device for holding the end of a roller shutter deck blade, inside a slide of said roller shutter, making it possible to remedy these various drawbacks.

The device for holding the end of a roller shutter apron blade, inside a slide of said roller shutter according to the invention, is in the form of an end piece intended to be secured at one end of said blade and able to be moved in said slide, and comprising at least one element projecting from the plane of said deck to come into abutment behind a retaining means that comprises said slide, said element being movable so as to be able to move between two positions extremes, a first retracted in the thickness of said blade, and a second projecting from the plane of said blade to take place behind said retaining means, and it is essentially characterized in that said movable means consists of a lug mounted movable in sliding, perpendicular to the plane of said blade, and recalled at the exit elastically.

According to an additional characteristic of the holding device according to the invention, the end piece comprises at least two lugs, one projecting from one side of the blade and the other projecting from the other side.

According to another additional characteristic of the holding device according to the invention, the end piece has the shape of an arc of a circle, so as to present a concave edge and a convex edge, and it comprises three lugs, one projecting from said edge convex in the middle zone, and the other two projecting each at the periphery of said concave edge.

According to another additional characteristic of the holding device according to the invention, the distal end of the lugs has a hook shape, namely that it has a lateral extension, which extends in the direction of the blade which carries the end piece .

According to a particular embodiment, of the holding device according to the invention, each lug is associated with a leaf spring.

According to another particular embodiment, of the holding device according to the invention, each lug consists of a monolithic piece made of at least two synthetic materials, one rigid constituting the body of the lug, the other flexible ensuring the elastic recall function.

According to an additional characteristic of the holding device according to the invention, the monolithic lug made of at least two synthetic materials, is obtained by means of a three-dimensional printing process.

According to another additional characteristic of the holding device according to the invention, in addition to the lug (s), the end piece consists of the assembly of two parts, a base which can be fixed to the end of a blade, and a cover which can be fixed to reversibly to said base.

The advantages and characteristics of the holding device according to the invention will emerge more clearly from the description which follows and which relates to the appended drawing, which represents several non-limiting embodiments.

In the attached drawing:

Figure 1 shows a schematic cross-sectional view of an apron blade equipped with a holding device according to the invention.

Figure 2 shows a perspective view of a holding device according to the invention, Figure 3 shows a perspective view of the same holding device from another angle, Figure 4 shows a partial sectional view of one end apron blade equipped with a holding device according to the invention, engaged in the slide of a rolling shutter.

Figure 5 shows a perspective and exploded view of an embodiment of a holding device according to the invention, Figures 6a and 6b show schematic sectional views of another embodiment of the holding device according to l invention, in two different configurations of use.

Figures 7 and 8 show schematic views of a set of holding devices according to the invention, in a particular configuration of use.

With reference to FIG. 1, one can see a blade 1 of a roller shutter curtain, in cross section, at one end of which is attached a nozzle 2, which can also be seen in FIGS. 2 and 3.

The end piece 2 has a contour corresponding approximately to the profile of the blade 1, that is to say in the shape of an arc of a circle, a shape which facilitates winding on a drum, and thus has a concave edge 20 and an edge convex 21. It has an outer wall 22 and an inner wall 23 intended to come into contact with the end of the blade 2, not shown in FIGS. 2 and 3.

The inner wall 23 is provided with anchoring means, in this case fingers 24 projecting perpendicularly, able to be engaged closely in the cells 10 of the blade

1, and be blocked therein through a tooth 25 which engages in a not visible cutout in the wall of the blade 1.

According to the invention, the end piece 2 is fitted with lugs 3, mounted movable perpendicular to the general axis XX 'of the end piece 2, and therefore of the blade 1 and therefore of the deck, in this case three, capable of protrude for one in the middle part of the convex edge 21, and for the other two of the concave edge 20 each eccentrically. These pins 3 are slidably mounted, each in a duct 26, as will be described in support of FIG. 5.

In the embodiment shown, the pins 3 essentially comprise two parts, a main body 30 of shape corresponding to that of the conduit 26 in which it can slide, in this case of rectangular section, and a distal part 31 shaped in a hook, namely that it consists of an extension 32 substantially perpendicular to the main body 30, and which extends in the direction of the blade 1, that is to say in a manner analogous to the fingers 24.

Referring now to Figure 4, we can see the end of a blade 1 provided with a nozzle 2 according to the invention, engaged in the slide 4 of a roller shutter.

The slide 4 consists of a profile comprising two wings 40 and 41 parallel to the plane of the deck formed by the blades 1, and which delimit a space in which the ends of the blades 1 can move, while being held there.

According to the invention, the slide 4 comprises a retaining means behind which the pins 3 can come into abutment, so that the ends of the blades 1 cannot escape from the slide 4 under the effect of a buckling of the blades 1 .

In the preferred embodiment shown, the wings 40 and 41 each have on their opposite facing faces, respectively 42 and 43, an open groove, respectively 44 and 45, of section in C, in which is placed a seal 5. The seals 5 comprise a base comprising in particular a sole 50 engaged and held in the open groove, 44 and 45, and a distal end 51 which has a hook-shaped section, namely that it has an extension 52 directed inwards backstage 4.

The distal ends 51 of the two opposite joints 5 are spaced apart by a distance between the thickness of the deck and the distance between the extensions 32 of the lugs 3, so as to allow the deck to pass, but d 'prohibit the passage of the end pieces 2 when the pins are free and therefore deployed.

As can be seen, during the bending of the apron, the pins 3 abut against the seals 5, and more particularly the extensions 32 come to hang on the extensions 52.

Thus, the pins 3 make it possible, in cooperation with the seals 5, to prevent the ends of the blades 1 from coming out of the slides 4, while their retraction in the end pieces 2, allows winding without additional bulk.

Referring now to FIG. 5, it can be seen that a nozzle 2 essentially comprises two parts, namely a body which comprises on one side the fingers 24 and on the opposite side a wall 28 cut out to include a part 260 of the conduits 26 , means 261 for holding the spring blades 2 62, for returning the pins 3 to extraction, and for the slides 280, with an axis perpendicular to the main axis XX 'of the end piece 2, intended to allow securing by sliding a cover 29.

It will be noted that the pins 3 have on each of their opposite faces, only one of which is visible, a stud 33 intended to cooperate with a partial groove 263, formed in the wall at the level of each part 260, as well as, in a non-visible manner in the cover 29, so that the pins 3 are retained in the conduits 26 while being mobile.

This design of the end piece 2 advantageously allows easy access to the parts that compose it, in particular, in the context of a repair for example, replacing spring blades 262 or damaged pins 3.

Referring now to Figures 6a and 6b, we can see another embodiment of the holding device according to the invention, which relates particularly to the method of manufacturing the pins.

As can be seen, each of the pins 3 comprises a body 30 made of a rigid synthetic material, in two opposite sides of which are formed cavities 34 each filled with a lining 35 of flexible synthetic material of elastomer type, to which is secured an arm 36.

The arm 36 is therefore linked to the body 30 through the lining 35, so as to obtain a flexible and elastic connection, and that the arms 36 constitute the elastic return means, replacing the spring blades 262 of the previous embodiment .

Thus, the nozzle 2 has internally, at the peripheries of the conduits 26, cavities 264 intended to accommodate the arms 36, and to allow them to bear to exercise their return function.

FIG. 6b shows the arms 36 in the rest position, that is to say when the pins 3 are in the position extracted from the end piece 2, while FIG. 6a shows the arms 36 in the constrained position, that is ie when the pins 3 are pushed back into the conduits 26.

This design of the lugs 3, incorporating the elastic return means, has the advantage of easier manufacture and therefore a reduced cost.

Another advantage of this embodiment is that the manufacture of such lugs 3 can be carried out by a three-dimensional printing process, which further reduces the cost thereof.

It will be noted in these FIGS. 6a and 6b, just as it appears in FIGS. 3 and 5, that the cover 29 of the end piece 2 has, on the side of the concave edge 20, at each of the lateral conduits 26, a boss 290 .

These bosses 290 constitute deflector means making it possible to soften the profile of the concave edge 20 at the level of the pins 3, when these are in the retracted position, and to avoid a risk of snagging, knowing that the two lateral pins 3 are longer than the central lug 3, to compensate for the fact that they project from the side of the concave edge 20.

With reference now to FIGS. 7 and 8, it can be seen, in FIG. 8 only, that the end piece 2 has on its inner wall 23, a transverse rib 230, of L-shaped section which forms with a groove 240 formed in the finger. 24 opposite, a sliding and guiding path for a bar 6, which makes it possible, as can be seen in FIG. 7, to maintain assembled a multiplicity of end pieces 2 during the deck assembly process.

Claims (10)

1) device for holding the end of a blade (1) of a roller shutter apron, inside a slide (4) of said roller shutter, being in the form of a nozzle (2) intended to be secured to one end of said blade and to be able to be moved in said slide (4), and comprising at least one element (3) projecting from the plane of said deck to come into abutment behind a retaining means (5) which comprises said slide (4), said element (3) being movable so as to be able to move between two extreme positions, a first retracted in the thickness of said blade (1), and a second projecting from the plane of said blade ( 1) to take place behind said retaining means (5), characterized in that said movable means consists of a lug (3) mounted movable in sliding, perpendicular to the plane of said blade (1), and biased at the output. 2) holding device according to claim 1, characterized in that the end piece (2) comprises at least two lugs (3), one projecting from one side of the blade (l) and the other projecting on the other side. 3) holding device according to claim 2, characterized in that the end piece has the shape of an arc of a circle, so as to have a concave edge (20) and a convex edge (21), and it comprises three lugs ( 3), one projecting from said convex edge (21) in the middle zone, and the other two projecting each at the periphery of said concave edge (20). 4) holding device according to any one of claims 1 to 3, characterized in that, the distal end (31) of the lugs (3) has a hook shape, that is to say that it has a lateral extension (32 ), which extends in the direction of the blade (1) which carries the end piece (2). 5) Holding device according to any one of claims 1 to 4, characterized in that each lug (3) is associated with a leaf spring (262). 6) holding device according to any one of claims 1 to 4, characterized in that each lug (3) consists of a monolithic piece made of at least two synthetic materials, one rigid constituting the body (30) of the 'lug, the other flexible (35) ensuring the elastic return function. 7) A holding device according to claim 6, characterized in that the monolithic lug (3) made of at least two synthetic materials, is obtained by means of a three-dimensional printing process. 8) holding device according to any one of claims 1 to 7, characterized in that, in addition to the lug (s) (3), the end piece (2) consists of the assembly of two parts, a base (27 ) can be joined at the end of a blade (1), and a cover (29) which can be joined reversibly to said base (27). 9) Blade (1) of a roller shutter curtain, characterized in that it comprises at least one of its ends, a holding device (2) according to any one of claims 1 to 8. 10) Roller shutter characterized in that it comprises an apron whose blades (1) are equipped with the holding device (2) according to any one of claims 1 to 8. 2/3