ES2273623T3 - CELOSIA HITCH DEVICE OF ROLLING BLIND, AND ROLLING BLANKET EQUIPPED WITH SUCH DEVICE. - Google Patents

Abstract

The device has a lower link or apron link connected to an upper link or tube link (6) by an intermediate link, where the links are articulated between them along an articulation axis parallel to a geometric axis of a rolling tube (3). The link (6) has an attaching device (C) having anchorages formed by openings bored in a wall of the tube. The device has anchoring units (16, 17) whose distance is adjustable along a direction parallel to the articulation axis of the tube link. The apron link has, at its apron side end, a reversible anchoring assembly constituted of a hook. An independent claim is also included for a roller shutter comprising an apron attaching device.

Description

Lattice blind device roller, and roller blind equipped with said device.

The invention relates to a device of lattice roller blind hitch to a tube winding, comprising at least two articulated links each other along an articulation axis parallel to the geometric axis of the tube, each link presenting a cross section substantially in the form of a circle arc, comprising the upper link or tube link a means of attachment to at least two anchors provided on the tube wall and spaced one of the another, while the lower link or lattice link is planned to get hooked on a top lattice lattice.

A hitch device of the defined type previously it allows a good curl of the links around the tube in order to reduce as much as possible the Total space occupation of the rolled lattice.

When the latticework reaches the bottom of the vertical guides to ensure complete closure, the links are unwound from the tube and placed in a substantially aligned position. Generally the links comprise at each of its longitudinal ends complementary means provided to keep the links in the aligned position at the end of the closure. The aligned links are then transformed into the equivalent of a rigid monobloc element that allows transmitting a push on the lattice in the direction of the guides from the rotation of the tube.
This push makes it possible to block the latticework in the guides and opposes theft attempts made from outside.

Such hitch devices work mainly with a means of maneuvering the winding tube by winch and motor that allow to secure a couple of rotation in the direction of descent. The hitch device links thus allow automatic locking at the end of the closing of the blind, which is advantageous to improve the safety of closing.

However, the manufacture and management of Links are relatively complicated and expensive.

Indeed, for roller blinds that ensure similar functions, there are different in the market winding tubes in which the anchors have different distancing, which need tube links different. Due to the different thicknesses of lattice slats present in the market, it is also necessary to provide links of Lattice of different types.

These different tube models of curling and / or lattice slats force a manufacturer of roller blinds to use a large number of types of links to make roller blinds. In the installation On site, the builder or installer runs the risk of not having the correct reference of the link at your fingertips.

The production of the links is also complicated since it consists of a multitude of references, what which divides the manufacturing series, and is detrimental to a good productivity and for a rational industrialization of these hitch devices

The inventory of winding tubes has allowed to re-anchor anchors constituted by perforations or ports of substantially equal shapes but separated by a distance, or step, variable.

EP 1,306,515 shows a device of coupling of the type in question according to which the tube link comprises, as a means of hooking to the tube wall, two projections separated by a certain distance corresponding to the separation of holes provided in the tube wall. At case in which the separation of the holes in the tube wall change, the tube link must be modified.

Documents FR 2,774,124, EP 1,500,774, FR 2,024,623 and EP 1,028,224 do not provide particular indications Regarding the problem of limiting the number of models of tube links to respond to the market of the different winding tubes

The object of the invention is, above all, propose a tube link that may be suitable for different types of winding tubes, in order to reduce the models of necessary links in the market. It would be advantageous if the lattice link could also be suitable for different types of slats that make up the lattices.

According to the invention, a hitch device blind roller blinds of the genre defined above It is characterized by the means of hooking the tube link It comprises at least two coupling bodies whose distance is adjustable according to a direction parallel to the axis of articulation of the tube link, in order to allow the link to be attached to tubes whose anchors are separated differently, thus being the multi-purpose tube link.

Preferably the link hitch means tube comprises a first fixed hitch member in relation to the link and a second coupling body whose distance from the Fixed hitch organ is adjustable.

Generally, the anchors are constituted by luminaries; the fixed hitching body may be constituted by a spike that protrudes parallel to the axis of articulation of the link, on the opposite side of the second coupling element, and suitable to fit in a tube port.

The second adjustable hitch body can it comprises a rotating hook integral with an orthogonal axis to the link articulation direction, the right hook being to fit in another tube port.

The tube link may comprise groups of two slots facing each other, spaced apart from each other according to the link articulation direction, suitable for receiving the solidarity axis of the hook at different distances from the organ of fixed hitch

The axis of articulation of the hook can be constituted by a crossbar between the arms of a U, advantageously made in recurved spring wire.

The lattice link can comprise, in its end by the lattice side, a hitch device that it allows to hook at least two types of lattice slats of different thicknesses.

The hitch device may comprise a hitch organ with reversible profile. The hooking organ it can be constituted by a solidarity hook of the link of Lattice to which a reversible profile is detachably attached which presents two opposite profiles, suitable to cooperate with lattice slats of different types, each profile can also be attached to the lattice link hook. A spring leg is advantageously provided on the hook or reversible profile for cooperate with a throat provided on the profile or hook, and ensure the immobilization of the profile in relation to the hook.

According to another possibility, the device hitch comprises a hook, integral with the lattice link, planned to cooperate directly with a first type of slats lattice an intermediate piece is intended to be joined by a  side with the lattice link hook and, on the opposite side, with another type of lattice slats.

A spring leg is advantageously provided on the hook or conjugate piece to cooperate with a notch provided on the piece or the hook, and ensure immobilization of the piece in relation to the hook.

The invention also relates to a roller blind comprising a device for engaging a winding tube as defined above.

The invention consists, apart from the provisions set forth above, in a number of other provisions that will be more explicitly issue below with regard to embodiments described with reference to the attached drawings, but that are not in any way limiting

In these drawings:

Figure 1 is a perspective view partial fragmentation of a roller blind and the device hook to a winding tube.

Figure 2 is a straight section on a larger scale of a winding tube.

Figure 3 is a straight view of a face only of the tube of figure 2 representing two ports of hitch.

Figure 4 is an end-to-major view. Winding tube scale with hitch device three links in a rolled position on the tube, not being lattice slats represented.

Figure 5 shows, similar to the Figure 4, the coupling device on a winding tube of greater cross section.

Figure 6 is a section according to the line VI-VI of figure 7 of a tube link according to the invention.

Figure 7 is a view above the link of tube of figure 6.

Figure 8 is a side view of a link lattice according to the invention.

Figure 9 is a side view, a larger scale, of a reversible profile suitable to cooperate with the link in figure 8.

Figure 10 is a partial perspective view of the profile of figure 9, on a different scale.

Figure 11 shows, similar to figure 8, another lattice link according to the invention.

Figure 12 is an end view of a suitable hitch profile to cooperate with the lattice link of figure 11 and,

Figure 13 is a partial perspective view from the end of the link in figure 11.

Referring to the drawings, particularly to figure 1, elements of a E set of roller blind.

The assembly E comprises a box 1 located in a end of an opening This opening is generally located in a vertical plane and consists of a window or a door, in which case the box 1 is located at the high end. The opening It could also be located on a horizontal or inclined plane.

In rolled position, lattice 2 of the roller shutter is completely inside the box 1 comprising two parts 1a, 1b in the form of dihedral which can assemble The assembled box 1 has in the lower part a slot, not visible, for the passage of lattice 2. Box 1 is closed by its longitudinal ends by lateral parts, not represented, comprising supports to support in rotation a winding tube 3 housed inside the box 1. The cross section of the tube 3 comprises, according to figure 1, longitudinal profiles 3a in projection radially towards the interior suitable for engaging in corresponding slots of the cubes 4 provided at each longitudinal end of the tube 3.

Each cube 4 comprises, outwards, a disc provided with a coaxial stump 5 received on a support of closing side of the box 1. One of the means 4 is connected in rotation to drive motor means not shown in the Figure 1.

Figure 2 illustrates a variant embodiment of the winding tube 3 whose cross section is formed for a regular octagon.

Lattice 2 is attached to winding tube 3 by at least one coupling device A comprising at least two and preferably three links 6, 7, 8 or 8a articulated between yes according to articulation axes 9, 10. Axes 9, 10 are parallel to the geometric axis X of the tube 3 when the links are fixed to this tube.

According to figure 1 two coupling devices A identical are provided and distanced according to the axis direction X. Each link 6, 7, 8 or 8a (see figures 4 and 5) has substantially the shape of a cylindrical sector whose generatrices They are oriented parallel to the articulation axes 9,10. The cross section of a link has an arc shape of circle whose concavity is turned towards tube 3 to allow A good winding around this tube. Seen above, the links have a rectangular contour, as has been represented for link 6 in figure 7, whose largest dimension It is oriented parallel to the geometric axis of tube 3.

The articulation of the links with each other is secured by a set of battlements or teeth 11, which are interwoven each other, and distributed according to the longitudinal edges adjacent two links. These battlements 11 comprise holes step for articulation axes 9 and 10.

The top link or tube link 6 comprises a connecting device C (Fig. 6 and 7) of at least two anchors D (Fig. 3) provided on the wall of tube 3 and separated from each other according to the axial direction X of the tube. D anchors they are generally formed by ports 12a, 12b perforated in the tube wall 3.

The lower link or lattice link 8 is intended to hook the upper lattice 13a of the lattice. The different slats 13a, 13b of lattice 2 are articulated between Yes in a classical way. The guide of the slats in the vertical plane of closing or opening is secured by vertical guides G which frame the opening. Lattice link 8 is attached to link of tube 6 by an intermediate link 7.

Links 6, 7 comprise at their ends longitudinally a leaf spring 14 orthogonal to the joint 9, 10 and protruding towards the next link 7, 8 or 8a to lean below a supportive stop 15 of this link 7, 8 or 8a. Figures 4 and 5 show leaf springs 14 in one resting position Normally these springs 14 flex in direction to the tube and are maintained by the stop 15 (Fig. 1). When lattice 2 reaches the bottom of guides G, links 6, 7 and 8 or 8a unwind from the tube and position themselves, then block each other under the action of leaf springs 14, in a substantially aligned position; the links are made equivalent to a rigid monobloc element and constitute a automatic latch, which allows transmitting a push on the lattice 2 from the rotation of tube 3. This thrust allows block lattice 2 in the G guides and opposes attempts to Theft from outside.

The ports 12a, 12b provided in tube 3 they are separated by a distance P or step that varies according to the type or the winding tube model.

According to the invention, the coupling device C (Fig. 4 and 5) of the tube link 6 comprises two organs of hitch 16, 17 whose distance h according to a direction parallel to the link articulation axis is adjustable. Thus it is possible to unite the tube link 6 and the roller blind to 3 different tubes whose ports 12a, 12b are separated according to distances different. The tube link 6 is thus versatile.

The coupling member 16 is fixed in relation to the link 6. It is advantageously constituted by a spike 16a in projection parallel to the articulation axis 9 of the link, by the opposite side of the second hitch member 17. Pin 16a can be formed by a tongue (Fig. 7) cut out on three sides of a rectangle in the bottom wall 18 of link 6, and deformed into direction to the tube 3. An opening 19 is produced by trimming in the wall 18.

The second coupling member 17 comprises a rotary hook 17a integral with an axis 20 orthogonal to the axis of link joint 9. The hook 17a has substantially right angle shape and turn its concavity on the side opposite to the spike 16a.

Two ribs r1, r2 parallel to the largest link dimension and orthogonal to the bottom wall 18 are Solidarity of this wall. The ribs r1, r2 are separated one of the other symmetrically in relation to the longitudinal direction link center.

To allow regulating the distance h between the spike 16a and hook 17a, is provided in the ribs r1, r2, groups of two slots, or notches, facing 21a, 21b; 22a, 22b; 23a, 23b ... distributed according to the longitudinal direction of link 6.  Each group of two slots, for example 23a, 23b is suitable for receive the articulation shaft 20. The rotating hook 17a is fixed at half extension of axis 20 and is at half width of link 6, like spike 16a.

The articulation shaft 20 is advantageously constituted by a crossbar between the two arms 24a, 24b of a U obtained by bending a spring wire or a stem. The free ends 25a, 25b of the arms 24a, 24b are turned to each other. A return lock 21c, 21d solidarity of link 6 is provided so that the ends 25a, 25b can be retained under this return when axis 20 is received in slots 21a, 21b furthest from return 21c, 21d. When axis 20 is received in slots 22a, 22b, or 23a, 23b closest to 21c, 21d, return lock 21c, 21d cooperates with an intermediate zone of the arms 24a, 24b. When arms 24a, 24b are subject to blocking returns, they are substantially parallel to the bottom wall 18; the 17th hook it then presents an orthogonal side to the wall 18 and another side in protrusion on the opposite side of pin 16a. The arms 24a, 24b they can approach elastically with respect to each other, in their plane, to be coupled under blocking returns 21c, 21d.

The hitch of a tube link 6, according to the invention, to the winding tube 3 is carried out in the manner next.

After measuring step P (Fig. 3) that separate the coupling ports 12a, 12b from the tube 3, the installer determines the group of slots 21a-21b ...; 23a-23b that should be used.

If axis 20 is not in this group of slots, the installer releases shaft 20 by pinching arms 24a, 24b to release them from blocking returns 21c, 21d and makes swing the arms away from the wall 18 and release the shaft twenty.

After having placed axis 20 in the group of retained slots, for example 23a, 23b as illustrated in Fig. 6, the installer couples the pin 16a in one of the ports, for example 12a, of the tube 3 so that the peak of the spike is located inside the tube below the wall. Due to the adjustment adopted, the hook 17a is then in front of the other port 12b. Lowering arms 24a, 24b towards bottom wall 18 of link 6, the installer causes the hook coupling 17a in opening 12b below the tube wall At the end of the overlap, the installer approximates the arms 24a, 24b to each other to make them pass under 21c-21d lock returns and secure the lock of link 6 in tube 3.

The hook 17a may be provided in order to lean against the inner surface of tube 3 before the arms 24a, 24b completely reach the low position. By exerting a bending pressure on these arms, the installer Secure the lock. The hook 17a then exerts an elastic support against the inner wall of tube 3, which ensures a good hitch.

The same tube link 6 can thus be attached to 3 tubes of different types.

Referring to Figs. 8 to 10 you can appreciate a first embodiment of a lattice link 8 which allows to hook at least two types of lattice slats 13a of Different thicknesses

Link 8 comprises, at its end by the lattice side, a reversible hitch set 26 constituted by a hook 27, solidary of link 8, which goes detachably attached a reversible profile 28.

The hook 27 comprises a slot 29 that opens on the side of the tube 3 and extending parallel to the link generatrices 8. The bottom of this slot communicates with a housing 30 whose transverse dimension is greater than that of the groove. A spring leg 31 protrudes in the groove 29, of preference to half the extension of the hook. Profile 28 like this as the hook 27 are advantageously made of matter plastic.

Reversible profile 28 has substantially the shape of an H whose ends of one of the arms are bent at a right angle at 32a, 32b towards the other arm, according to a profile complementary to slot 29 and housing 30. In particular, the ends 32a, 32b end at a peak 33 suitable for coupling in the housing 30 and to retain the profile 28 according to a orthogonal direction to the generatrices of link 8.

\hbox{gancho
27.}

The wall corresponding to each bent end 32a, 32b comprises a throat 31a, generally halfway along profile 28, in which leg 31 is engaged to ensure complete locking of profile 28 in the

 \ hbox {hook
27.} 

Profile 28 presents a first profile 28a planned to receive lattice slats of a first type, by example whose thickness is between 11 and 14 mm. A second opposite profile 28b is planned to receive slats of Lattice of a different type, for example of thickness included between 8 and 11 mm. Each profile 28a, 28b is delimited by two substantially parallel walls, completed by return 32a, 32b delimiting an input slot 34a, 34b.

Lattice 2 latch is made of the following form.

If the lattice is composed of slats 13a of thickness corresponding to profile 28a, the installer engages the reversible profile 28 to hook 27 by its other profile 28b. He folded end 32b engages in slot 29 by sliding, the spring leg 31 being pushed to catch in the throat 31a when it reaches the right of leg 31. Profile 28 is then block on hook 27.

Profile 28a is then coupled to the slat Lattice top.

If the lattice is equipped with thick slats corresponding to profile 28b, while profile 28 is attached to hook 27 by this profile 28b, the installer hides leg 31 with an appropriate tool for releasing the profile 28 from the hook 27. The profile  28 is then rotated so that the bent end 32a is sliding coupling, in slot 29 until locking by leg coupling 31 in the corresponding throat 31a.

Profile 28b is then available for the latch of the lattice lama.

Figures 11 to 13 illustrate a variant of embodiment according to which the lattice link 8a comprises, in its end by the lattice side, a hook 35 provided for Cooperate directly with a first type of lattice slats, by example slats whose thickness is between 8 and 11 mm. He hook profile 35 corresponds to profile 28b of Fig. 9. The hook 35 is integral with link 8a. The outer arm 36 of profile 35 comprises, preferably at medium extension, a notch 37 (Fig. 13).

An intermediate piece 38 is provided for allow to engage other types of slats, for example lamas whose thickness is between 11 and 14 mm.

The piece 38 presents in the lower part, a profile 28a similar to that of figure 9 and, at the top, a profile 39 complementary to the hook housing 35. In addition a leg of spring 40 is provided on the front surface of the profile 39 to cooperate with the notch 37.

Lattice link hitch 8a is performed as follows.

If the lattice is equipped with thick slats corresponding to the profile of the hook 35, the latter can engage directly in the upper lattice lattice. The piece intermediary 38 is not used then.

If the lattice is equipped with thick slats corresponding to profile 28a of intermediate piece 38, this is engages its profile 39 on the hook 35 until the spring leg 40 snaps into notch 37. Profile 28a is located then available for lattice hitch.

The installer can thus by simply turning the profile (Fig. 8-10) or by placing a intermediate piece (Fig. 11-13) adapt the link from lattice to roller blind configuration.

Claims (17)

1. Lattice hitching device (2) of roller blind to a winding tube (3), comprising at least two links articulated with each other along an articulation axis parallel to the geometric axis of the tube, each link having a substantially cross-sectional cross-section in the form of a circle arc, the upper link or tube link (6) comprising a hooking device with at least two anchors (12a, 12b) provided in the tube wall (3) and separated from each other, while the lower link or lattice link is provided to be hooked to an upper louver of the lattice, characterized in that the hooking device (C) of the tube link (6) comprises at least two coupling members (16, 17) whose distance (h ) is adjustable according to a direction parallel to the axis of articulation (9) of the tube link (6), in order to allow the link (6) to be connected to tubes (3) whose anchors (12a, 12b) are separated differently , the tube link being so versatile. 2. Coupling device according to claim 1, characterized in that the coupling device (C) of the tube link (6) comprises a first fixed coupling element (16) relative to the link and a second coupling element (17) whose distance (h) with the fixed hitch member (16) is adjustable. 3. Hooking device according to claim 1 or 2, wherein the anchors are constituted by louvres (12a, 12b) provided on the wall of the winding tube (3), characterized in that the fixed hitch member (16) is constituted by a pin (16a) protruding parallel to the articulation axis (9) of the link, on the opposite side to the second coupling member (17), and suitable for engaging in a tube port. 4. Coupling device according to one of the preceding claims, characterized in that the first coupling member (16, 16a) is made in one piece with the tube link. 5. Hooking device according to one of claims 1 to 3, characterized in that the first hooking element is made in the form of a piece added to the tube link. 6. Hooking device according to one of claims 2 to 5, characterized in that the second adjustable hitch member (17) comprises a rotating hook (17a) integral with an orthogonal shaft (20) with the articulation shaft (9) of the link , the hook (17a) being suitable for engaging in another port of the tube. 7. Coupling device according to claim 6, characterized in that the tube link (6) comprises groups of two facing grooves (21a, 21b; 22a, 22b; 23a, 23b ...) separated from each other according to the direction of articulation of the links, suitable for receiving the shaft (20) integral with the adjustable hook (17a) at different distances from the fixed coupling member (16). 8. Hooking device according to claim 7, characterized in that the articulation shaft (20) is constituted by a connecting cross member between the arms (24a, 24b) of a U. 9. Hooking device according to claim 8, characterized in that the articulation shaft (20) and the arms (24a, 24b) are made of a U-shaped spring wire. 10. Hooking device according to claim 8 or 9, characterized in that the link (6) comprises locking returns (21c, 21d) integral with the link for retaining the arms (24a, 24b) in the lowered position. 11. Coupling device according to one of the preceding claims, characterized in that the lattice link (8) comprises, at its end on the lattice side, a coupling device (26, 35, 36) which allows to engage at least two types of lattice slats of different thicknesses. 12. Lattice hitch device according to claim 11, characterized in that the hitch device (26) comprises a reversible profile hitch member (28). 13. Lattice coupling device according to claim 12, characterized in that the coupling device (26) is constituted by a hook (27) integral with the lattice link to which a reversible profile (28) is detachably attached, which has two opposite profiles (28a, 28b), suitable for cooperating with lattice slats of different types, each profile (28a, 28b) being able to be attached to the lattice link hook. 14. Lattice coupling device according to claim 13, characterized in that a spring leg (31) is provided on the hook or reversible profile to cooperate with a throat (31a) provided in the profile or the hook, and ensure the immobilization of the profile in relation to the hook. 15. Lattice coupling device according to claim 11, characterized in that the coupling device comprises a hook (35) integral with the lattice link (8a), intended to cooperate directly with a first type of lattice slats, an intermediate part being (38) intended to be attached on one side to the hook (35) of the lattice link and, on the opposite side, to another type of lattice slats.

         \ newpage
      

16. Lattice coupling device according to claim 15, characterized in that a spring leg (40) is provided on the hook or the conjugate piece to cooperate with a notch (37) provided on the piece or the hook and ensure the immobilization of the piece in relation to the hook. 17. Roller blind comprising a hooking device to a winding tube according to a any of the preceding claims.