ES2351768T3 - TOLIPA OF ROLLING BLINDS, AND INSTALLATION OF ROLLING BLINDS THAT UNDERSTAND SUCH TULIPS. - Google Patents

Abstract

The hub (7) has a retractable stop (13) to occupy an active position, where the stop cooperates with an end fitting (17) to stop a winding of an apron at an end of raising course of the apron, and a removed position, where the stop permits the passage of the fitting. The fitting is connected to an edge of horizontal plates (3) of the apron. The stop is made of steel wire and has a rod (14) engaged in a housing. The rod has an offset part (15) located in a plane passing through a geometric axis of the rod and cooperated with the end fitting to stop the apron in the active position.

Description

Roller shutter screen, and installation of roller blind comprising said tulip.

The invention relates to a blind tulip roller intended to be mounted on the head of a guide and to guide the entry in the guide of articulated slats of a lattice of roller blind, this tulip provided with a stop concealed that can occupy an active position where it cooperates end of the lattice lift path with an element tubular attached to the edge of a lattice slat, usually the final slat, to stop the curl, and a hidden position where it lets the tubular element pass, being constituted the indicated stop by a rod coupled in part in a housing of the tulip on the side of the lattice.

Document DE 32 22 770 A1 describes a tulip of roller shutter of this type in which the stop, formed by a rod, is held in active position by tightening with the help of a screw in a sliding organ. To hide the top, It is necessary to act on the screw and remove the stop. This disassembly operation complicates the concealment of the stop. Further, the assembly of the sliding organ, of the rod that forms a stop and of the Screw is relatively bulky.

The object of the invention is, above all, provide a roller blind shade of the defined type previously in which the top has a reduced bulkiness, being effective and easy to handle.

According to the invention, a roller blind roller of the type defined above is characterized in that the rod comprises a transverse sag located substantially in a plane that passes through the geometric axis of the rod and suitable for cooperating, in the active position of the stop, with the element tubular to stop the lattice, the stop can move from one position to another.

The stem that constitutes the top is generally metallic, advantageously formed by a wire of steel.

Preferably, the rod comprises a part curved with an arm located outside in front of the tulip, facilitating this curved part the grip of the stop and the maneuver of East.

The stop arm located outside in front of the tulip, cooperates with a means of retention provided in the tulip, to keep the stop in active position.

The stop can be slidably mounted on the tulip parallel to the lattice lama, for concealment by translation of the deviated part.

The retention means may comprise a horizontal groove provided on the outer front surface of the tulip. The groove can comprise a projection and the stop it comprises a substantially V-folded arm whose tip cooperates With the ledge.

According to another possibility, the retention means comprises on the front surface of the tulip a housing essentially vertical and, on the part of the stop located in the front part of the tulip, an essentially vertical arm, Suitable to cooperate with the accommodation.

The tulip can comprise an elastic recoil of the stop in active position. The elastic recoil can be obtained through the cooperation of an external arm of the stop curved fork-shaped with the bottom inclined by a accommodation provided on the front surface of the tulip. According another possibility, the elastic recoil is obtained by cooperation of the vertical arm and of the housing, the vertical arm being elastic in flexion and allowing, by elastic deformation, the offset and recoil of the stop in active position.

The deviated part of the tulip can form substantially three sides of a rectangle.

The lower edge of the tubular element can understand an inclined ramp suitable for cooperating with the side from the stop near the vertical edge of the guide so that, to the first lowering of the lattice, the same push the stop in position hidden allowing the passage of the tubular element and the descent of the lattice

According to a variant embodiment, the stop could be rotatably mounted on the tulip around an axis horizontal geometric perpendicular or parallel to the lattice slat, for a concealment by rotation of the deviated part.

The invention also relates to a roller blind installation, characterized in that it comprises a tulip as defined above.

The invention consists, apart from the provisions set forth above, in a number of other provisions of which will be more explicitly matter to in the following about embodiments described with reference to the attached drawings, but which are not in any way limiting In these drawings:

Fig. 1 is a schematic partial view, in vertical section, of a roller blind, of the guide and of the tulip

Fig. 2 is a perspective view fragmented from the end of a final louver blind roller and tubular element for coupling in this slat.

Fig. 3 is a perspective view. fragmented illustrating the high end of a guide, the tulip to mount on the head of the guide, the stop according to the invention, the tubular element and a part of the final slat,

Fig. 4 is a larger view above of the guide on which the tulip is installed with the slat of lattice equipped with the tubular element, the stop being represented in active position.

Fig. 5 is a partial perspective view of the guide head equipped with the tulip according to the invention.

Fig. 6 is a perspective view fragmented, partial, of a second embodiment of the tulip and butt according to the invention.

Fig. 7 shows, in perspective, the pieces of Fig. 6 assembled.

Fig. 8 is a top view with parts sectioned of the assembly of Fig. 7.

Fig. 9 is an elevational view of the guide and of the tulip of Fig. 7.

Fig. 10 is a perspective view fragmented from another example of realization of the tulip and the stop according to the invention.

Fig. 11 is a top view with part sections of the tulip and the top of Fig. 10 assembled, with the tubular element coupled to the lattice slat, being this lama also coupled in the guide.

Fig. 12 shows, similar to Fig. 11, the tulip with the stop in hidden position.

Fig. 13 is a schematic view above of a variant of the tubular element with ramp cooperating with the stop, top, maximum as a noun, top as an adverb.

Fig. 14 is a partial schematic view in elevation of the end of the slat with the tubular element according to Fig. 13 and the top, and

Fig. 15 is a schematic view in perspective of a stop according to the invention for a rotating assembly in the tulip around a perpendicular horizontal geometric axis to the lattice lama.

Referring to Fig. 1 of the drawings, a roller blind 1 can be seen comprising a lattice 2 formed by horizontal slats 3 joined together by horizontal joints Lattice 2 can be rolled up around a horizontal axis 4 held by devices of suitable support above an opening 5, for example a window. The rotation of axis 4 can be driven either manually, for example by a crank or a strap, or by an electric motor A maneuver winch W axis has been schematically represented.

The ends of the lattice slats 3 are coupled in vertical lateral guides 6 of horizontal section in U shape whose concavity is turned inwards. The guides 6 conduct the downward and upward movement of the lattice 2.

On top of each guide 6 it is mounted a roller blind shutter 7, to guide the entrance of the lamas 3 of the lattice in the guide. As can be seen in Fig. 3 and 6, a tulip 7 comprises a lower vertical leg 8 provided to be coupled in a vertical housing 9 of the guide and to be  fixed on it by, for example, the help of a screw 10 horizontal. The part of the tulip 7 located above the leg 8 it forms a kind of funnel limited by two curved walls 11a, 11b turning its convexity towards each other. These walls 11a, 11b they separate from each other in the sense of rise and, in the part low, define a groove substantially the same width as the of guide 6 with which they join. The two walls 11a, 11b are solidarity of a wall 12, orthogonal to the whole plane of the unwound lattice. The space between the walls 11a, 11b is opened in the direction of the slats 3 that can by consequently fit between the walls 11a, 11b and be guided towards the guide 6.

The tulip 7 is provided with a concealed stop 13 consisting of a rod 14 coupled, in part, in a accommodation of the tulip on the side of the louvers 3 of the lattice. The rod 14 extends horizontally, parallel to the longitudinal direction of the louvers 3 of the lattice.

The stem 14 is generally metallic advantageously constituted by a steel wire, preferably of circular section.

In variant, the rod 14 could be made in other metallic material that has mechanical properties sufficient, particularly in fiber-reinforced plastic of high mechanical strength, such as glass fibers or carbon.

The rod 14 comprises, on the inner side, a part 15 transversely turned inwards, that is towards the plane of the lattice. This part 15 has preference substantially the three-sided shape of a rectangle located in a horizontal plane when the stop is placed, the side being greater 15a substantially parallel to the overall direction of the rod 14 and being connected with the other parts of rod 14 by smaller sides 15b substantially orthogonal to the stem assembly direction.

Inward part 15 protrudes freely in the space between the walls 11a, 11b of the tulip A vertical slot of rectangular section 16 is provided on convex walls 11a, 11b against wall 12.

The stop 13 can occupy an active position shown in Fig. 4, in which the deflected part 15 protrudes inward in slot 16. In this active position deviated part 15 cooperates at the end of the course of lifting of the lattice with a tubular element 17 coupled in the edge of a lama 3 (Fig. 2) of the lattice, usually the lama final is to say the lowest lama. The tubular element 17 protrudes transversely beyond the slat 3 by an excess thickness 17a Inverted T-shape that slides in slot 16. One of the ends of the lower crossbar 18 of the T is put on contact with the deflected part 15 that ensures the stop of the lattice curl.

Stem 14 extends beyond the part deviated 15 by an extension 14a that crosses the accommodation of the tulip and protrudes from the side of the tulip opposite to part 15 as can be seen in Fig. 4. The length of this extension 14a is sufficient for a stretch stay in the tulip housing while the part deviated 15 has been shifted to the left of Fig. 4 with in order to let the tubular element 17 pass.

On the opposite side to end 14a, the stem 14 has a curved part 14b, in the plane of part 15, by the opposite side of the lattice. The curved part 14b forms a species of fork presenting an arm 14c outwards, substantially folded 180º, which is placed in front of the tulip, as can be seen in Fig. 5. Arm 14c cooperates with a retaining means 19 provided in the tulip to hold the stop 13 in its active position.

The retention means 19, according to the embodiment of Fig. 5, comprises a horizontal groove 20 provided in the outer front surface of the tulip, comprising this slot a projection 20a (Fig. 4) that forms an obstacle in this slot before reaching the inner edge 21 of the tulip. Arm 14c bends in the substantially V horizontal plane whose tip it is turned towards the inside of the curved part 14b. The tip of the V is intended to engage in slot 20 and cooperate with the projection 20a of slot 20. In this position, loop 14b and the deflected part 15 of the stop 13 are located in the same plane horizontal than slot 20.

The curved part 14b surrounds the edge 21 of the tulip and is accessible to an operator. Exerting a force of traction on the curved part 14b according to the direction of the arrow F (Fig. 4), on the horizontal and on the opposite side of the guide, you can cross the ledge 20a through part 14c, and move the stop zone 15 to the left according to Fig. 4 in order to release the passage for the tubular element 17.

In general, a T-shaped tubular element 17 it is positioned at each end of the final slat 3. It evolves in the inside of the guide box 6, passing behind a gasket holder Each tulip is equipped with a stop concealable 13 and the corresponding tubular element stops under the tulip in order to stop lattice 2 in the upper position. This stopper solution 13 under the tulip is interesting as it is virtually invisible and independent of the set of walls teachers

In order to be able to lower lattice 2 by 6 guides on the first descent, at the time of installation of the shutter, the passage is left free in tulip 7 by concealment of the stop zone 15 according to a horizontal translation on the side opposite to the guide as indicated above. Then the passage formed by the slot 16 of the tulip closes again resetting the stop 13 in the active position with its stop zone 15 outgoing in step 16.

The stop 13, particularly constituted by a curved steel wire, can travel in translation in the tulip in order to obstruct or not the passage of the projecting part 18 of the tubular element 17. The outer part 14b turned creates a zone grip and ensures a lock in open position or closed by placing the return 14c of the wire on one side or the other of the projection 20a located on the side of the tulip.

Referring to Figs. 6-9, you can see an embodiment variant 113 of the concealed stop that integrates a recoil function automatic by spring on the locking wire 114. The different parts of this variant identical or that play roles similar in the parts already described with regard to the first example of realization are designated by the same numerical references increased with the number 100, and its description will not be given again. The end of the arm 114c away from the curved part 114b bends vertically upwards, perpendicular to the horizontal plane of the curved wire 114, according to an end arm 22 that is positioned in a vertical housing 23 provided in the tulip 7 and opened by the opposite side of the lattice. Arm 22 is enough flexible to allow translation of the stop 113 in the direction opposite the tulip in order to hide the buffer zone 115. The elasticity of the vertical arm 22 ensures the return of the area of stop 115 in active position when traction is stopped on the curved part 114b constituting the gripping means.

The operation of the stop 113 of Fig. 6-9 is as follows.

In the normal position of the stop 113, illustrated in Fig. 7 and Fig. 8, the arm 22 is vertical and, by cooperation with housing 23, keeps the stop in a position where deviated zone 115 can cooperate with an arm of the T with in order to stop latticework in the upper position. Wire 114 occupies a stable position by closing step 16 of the tulip.

It is enough for an operator to pull the loop 114b to cause elastic deformation of arm 22 and move the area 115 in hidden position to clear the passage. Once he Operator releases loop 114b, stop 113 returns to position active due to the elastic recoil exerted by the arm 22.

Referring to Fig. 10 to 12 you can appreciate a variant of realization with automatic recoil in active position. The stop 213 formed by a steel wire 214 curved fork-shaped features an outer arm 214c closed again at more than 180º, which cooperates with the fund of a 24 housing provided on the front surface of the tulip. He bottom of housing 24 is inclined so that it approaches the plan of plank 3 when it is directed towards the vertical bottom of the guide. The grip of this bottom 24 by the inclined arm 214c causes the elastic recoil with horizontal sliding towards the right of Fig. 11 of the stop formed by the wire 214.

The operation follows from the Explanations above. In the resting position illustrated in Fig. 11, the arm 214c is supported according to a maximum length against the bottom 24. The deflected area 215 is in active position suitable for stopping the tubular element 17 in position high.

An operator can pass the stop 213, 214 to the hidden position by pulling to the left of the Fig. 11 on the curved part 214b to carry the deflected area 215 out of cooperation with the tubular element 17 as has illustrated in Fig. 12, and release the passage. Once the operator loosen wire 214, the latter automatically returns to the active position of Fig. 11.

Advantageously, in the case of a recoil elastic of the stop in active position according to Figs. 6 and 7, it is possible to provide as illustrated in Fig. 13 and 14, the cooperation of the minor side 115b (to be replaced by 15b) of stop 113 (to be added in the Fig. 13) closest to the vertical bottom of the guide 6 with a ramp 25 made on the lower edge corresponding to the element tubular 17. Ramp 25 is inclined so that, in the first lowering of the lattice, the same push the smaller side 15b associated, and the stop 113, to the left of Fig. 14 allowing the passage of the tubular element and the lowering of the lattice. The elastic recoil secured by the arm 22 (Figs. 6 and 7) carries again the stop 113 to the active position to stop the lattice in his next uprising. You can then consider that the System is fully automated for assembly. This arrangement can also be applied to the variant of Fig. 10 to 12.

This presents an obvious interest for the manufacturer of closures, in the case of a motorized blind mounted in the workshop and including an elevated stop device and low with obstacle. At the time of assembly on site of the shutter, there is no longer the risk of forgetting the placement of the stop raised and the blind is no longer at risk of losing its settings at the end of the tour continuing to turn once you have reached the high part.

Fig. 15 shows in perspective a variant according to which a stop 313 is intended for a rotating assembly in the tulip 7 around a horizontal geometric axis, orthogonal to lama 3 of the blind. The different parts of the stop 313 equivalent to parts already described in connection with Figs. 3 and 5, designate by the same numerical references preceded by the figure 3, without its description being taken again with detail.

The stop 313 comprises a deviated part 315 which, in the active position, is horizontal and protrudes in the area bottom of the passage of the tulip, perpendicular to the wall of background 12. Extension 314a is intended to engage in a horizontal housing provided in the lower part of the wall 11a (Fig. 3), in the vicinity of the bottom 12, of geometric axis orthogonal to the vertical lama 3. The extension 314a serves as an axis of rotation for the stop 313. The curved part 314b, substantially U-shaped, it has an area aligned with 314a that, in cooperation with a guidance medium, particularly a slot (not shown), provided on the front wall 11b of the tulip, completes the joint of the stop 313 around an axis horizontal perpendicular to plank 3. A bent arm 314c goes towards forward and can be coupled in a horizontal groove provided in the front surface of the tulip to keep the stop on the horizontal active position represented with solid line in Fig. 15.

In the active position, the deflected part 315 horizontal, outgoing in the passage of the tulip, stops the tubular element 17 and the lattice in the raised position.

Tipping the stop 313 down, by rotation around 314a, to bring the curved part 315 to the hidden vertical position represented with dashed lines interrupted in Fig. 15, the passage for the element is released tubular 17 and lattice.

According to another variant, not shown, the cap could be rotatably mounted on the tulip around an axis horizontal geometric parallel to the lattice lattice, for a concealment also by rotation of the deviated part.

The stop solution proposed by the invention It is particularly interesting because it is simple, practically invisible and not very bulky.

In classic solutions, it is a threaded stop in the final lama that just leaned on the lintel. A solution of this type has the disadvantage of not being able to be factory assembled and of having to be left to the initiative of the editor. In addition, such stops remain visible in the final slat and impair aesthetics of the product.

Claims (15)

1. Roller shutter tulip, to be mounted on the head of a guide and to drive the entry into the guide of slats (3) articulated by a roller blind shutter, this tulip being provided with a concealed stop (13, 113, 213, 313) which can occupy an active position where it cooperates at the end of the lattice lift path with a tubular element (17, 18) joined with the edge of a lattice slat, in general the final lama, to stop the winding , and a hidden position where the tubular element passes, the stop being constituted by a rod (14, 114, 214, 314) partially coupled in a housing of the tulip (7) on the side of the lattice, characterized in that the rod (14, 114, 214, 314) comprises a transverse sag (15, 115, 215, 315) located substantially in a plane passing through the geometric axis of the rod and suitable for cooperating, in the active position of the stop, with the tubular element (17, 18) to stop the c elosía, being able to stop (13, 113, 213, 313) move from one position to another. 2. Roller blind shade according to claim 1, characterized in that the rod (14, 114, 214, 314) constituting the stop is formed by a steel wire. 3. Roller shutter tulip according to claim 1 or 2, characterized in that the rod comprises a curved part (14b, 114b, 214b, 314b), with an arm (14c, 114c, 214c, 314c) located outside in front of the tulip, facilitating this curved part the grip of the stop and its maneuver. 4. Roller shutter tulip according to claim 3, characterized in that the stop arm (14c, 114c, 214c, 314c) located outside in front of the tulip cooperates with a retaining means (19, 20; 23; 24) provided in the tulip, to keep the stop in active position. 5. Roller shutter tulip according to any one of the preceding claims, characterized in that the stop (13, 113, 213) is slidably mounted on the tulip (7) parallel to the lattice slat (3), for concealment by translation of the deviated part (15, 115, 215). 6. Roller shutter tulip according to claim 4, characterized in that the retention means (19) comprises a horizontal groove (20) provided on the outer front surface of the tulip. 7. Roller shutter tulip according to claim 6, characterized in that the groove (20) comprises a projection (20a) and the stop comprises a folded arm (14c substantially V-shaped whose tip cooperates with the projection. 8. Roller shutter tulip according to the set of claims 4 and 5, characterized in that the retention means comprises on the front surface of the tulip an essentially vertical housing (23) and, in the part (114c) of the stop located in the front part of the tulip, an essentially vertical arm (22), suitable for cooperating with the housing. 9. Roller shutter screen according to claim 6, or 8, characterized in that it comprises an elastic recoil of the stop in active position. 10. Roller shutter tulip according to the set of claims 6 and 9, characterized in that the elastic recoil is obtained by cooperation of an outer arm (214c) of the curved fork stop with the inclined bottom (24) of a housing provided in the front surface of the tulip. 11. Roller shutter tulip according to the set of claims 8 and 9, characterized in that the elastic recoil is obtained by cooperation of the vertical arm (22) and of the housing (23), the vertical arm (22) being elastic in flexion and allowing, by elastic deformation, displacement and recoil of the stop in active position. 12. Roller blind shade according to any one of the preceding claims, characterized in that the deflected part (15, 115, 215, 315) of the stop forms substantially three sides of a rectangle. 13. Roller shutter tulip according to any one of claims 9 to 11, or according to the assembly of claim 12 and any one of claims 9 to 11, characterized in that the bottom edge of the tubular element (17) comprises a ramp (25 ) inclined suitable to cooperate with the side (15b) of the stop near the vertical bottom of the guide such that, at the first descent of the lattice, the same push the stop (113) in a hidden position allowing the passage of the tubular element and the descent of the lattice. 14. Tulip according to any one of claims 1 to 4, characterized in that the stop (313) is rotatably mounted on the tulip around a horizontal geometric axis perpendicular or parallel to the lattice lama, for a concealment by rotation of The deflected part. 15. Installation of roller blind, characterized in that it comprises a tulip according to any one of the preceding claims.