EP1488069B1 - Mechanism for tensioning a compensation spring for a closing or sun protection installation - Google Patents

Mechanism for tensioning a compensation spring for a closing or sun protection installation Download PDF

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Publication number
EP1488069B1
EP1488069B1 EP03740534A EP03740534A EP1488069B1 EP 1488069 B1 EP1488069 B1 EP 1488069B1 EP 03740534 A EP03740534 A EP 03740534A EP 03740534 A EP03740534 A EP 03740534A EP 1488069 B1 EP1488069 B1 EP 1488069B1
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EP
European Patent Office
Prior art keywords
spring
ring
mechanism according
screen
shaft
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Expired - Lifetime
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EP03740534A
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German (de)
French (fr)
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EP1488069A2 (en
Inventor
Benjamin Bousson
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Simu SAS
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Simu SAS
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/60—Spring drums operated only by closure members

Definitions

  • the invention relates to a mechanism for operating a closure or sun protection system.
  • the invention also relates to a closure or sun protection system incorporating such a mechanism.
  • Closure installation means doors, gates, shutters, grilles and equivalent materials.
  • a screen which may be a flexible apron or a rigid or semi-rigid panel, is moved opposite an opening in order to selectively close it.
  • the weight of this screen exerts on the drive means a variable torque, in particular depending on the position of this screen. It is known to use springs duit "compensation" to compensate at least partially this couple.
  • the invention intends to remedy more particularly by providing an operating mechanism in which the tension of a compensation spring can be adjusted easily and safely, by means of a simple and reliable device. .
  • the invention relates to a mechanism for operating a closure or sun protection system, this mechanism being mounted in or on a fixed structure and comprising a shutter screen of an opening in this structure, then it also comprises at least one weight compensation spring of this screen, this spring being kinematically connected, at one of its ends, with the aforementioned fixed structure and, at its other end, with the aforementioned screen.
  • This mechanism is characterized in that it comprises a unidirectional coupling device including a brake spring disposed between the compensation spring and the fixed structure or between the compensation spring and the screen, while means integral with the spring of compensation are arranged to exert on the brake spring a centripetal or centrifugal force blocking thereof with respect to the fixed structure or the screen.
  • the invention finally relates to a sun protection closure system which comprises a mechanism as previously described.
  • a sun protection closure system which comprises a mechanism as previously described.
  • the installation represented Figures 1 to 4 comprises an apron T intended to be selectively wound around a substantially horizontal geometric axis XX 'fixed relative to the masonry M of a building in which is formed an opening O to be closed with the deck T.
  • the deck T is connected by several straps, only one of which is visible at figure 1 with reference 1, to winding disks, only one of which is visible at figure 1 with the reference 2.
  • Two compensation springs 3 and 3 ' are mounted to exert on the disk 2 a force opposite the torque resulting from the weight of the deck T with respect to the axis X-X'.
  • the disks 2 and the like are rotatably mounted around a circular section shaft 4 which is fixed, by means of brackets 41, with respect to the masonry M.
  • Drive means for driving the apron T in rotation around the axis X-X ' may be provided, these drive means being able to be mechanical or electrical.
  • the deck T is controlled by a direct action of the user on the lower batten thereof.
  • the springs 3 and 3 ' are each immobilized on the frustoconical surface 51 or 51' of two rings 5 and 5 'made integral by keys 52, the ring 5' being in engagement with the disk 2.
  • a first end 31 or 31 'of a spring 3 or 3' is wound on a surface 51 or 51 ', a hook being optionally formed to firmly anchor these ends relative to the rings 5 and 5'.
  • the springs 3 and 3 ' are immobilized on rings 6 and 6' which each comprise a frustoconical surface 62 or 62 'for receiving the ends 32 and 32'.
  • the ring 6 is provided with a central opening 61 of circular shape and whose diameter allows it to rotate about the shaft 4.
  • the surface 62 is stepped to facilitate the introduction of the end 32 of the spring 3.
  • the ring 6 also comprises a sleeve 63 in which is formed a notch 64 which is noted 641 and 642 the side edges and 643 the bottom edge.
  • a spring 7 is arranged around the shaft 4 and inside the sleeve 63. It is noted 71 and 72 the ends of the spring 7 which is a brake spring in that it is able to brake the ring 6 by relative to the shaft 4, that is to say, in practice, to immobilize in rotation the ring 6 about the axis XX 'through a centripetal force E.
  • a second ring 8 is also mounted around the shaft 4, with the possibility of rotation, this ring being provided with a projection 81 which extends, with respect to a side 82 of the ring 8, in a direction generally parallel to the axis X-X '.
  • the projection 81 has a width allowing it to be inserted between the ends 71 and 72 of the brake spring 7, while the notch 64 has a width allowing it to receive the ends 71 and 72 between the edges 641 and 642.
  • the ring 8 is also provided with a plurality of peripheral grooves 83 which make it possible to easily exert on the ring 8 a torque with respect to the axis X-X '.
  • the brake spring 7 makes it possible to immobilize the ring 6 on the shaft 4, despite the pairs C 1 or C 2 transmitted by the spring 3.
  • An adjustment in the opposite direction can be obtained by exerting a torque C 4 , directed in the opposite direction of the cut C 3 .
  • the force C 4 induces a displacement of the opposite edge 812 of the projection 81 to the contact of the end 72, then a displacement of this end towards the edge 641, which has the effect of expanding the spring 7 and thus allow driving of the ring 6 in the direction of the torque C 4 .
  • a key 9 can be used to exert the torque C 3 through a force F 3 exerted on its handle 91.
  • the key 9 is provided with a nose 92 adapted to penetrate into one of the grooves 83.
  • the key 9 is returned and a force in the opposite direction of the force F 3 is exerted on the handle 91.
  • FIGS. Figures 1 to 4 can be modified so that the ring 5 and 5 'are fixed on a console mounted on the fixed structure of the building, the axis 4 then being rotating and carrying at its ends pulleys on which a connected lifting cable is wound to the apron T.
  • the operation is similar to that mentioned above.
  • a fixed shaft 104 is immobilized relative to the masonry M of a building through consoles 141 and 141 '.
  • XX ' is the longitudinal axis of the shaft 104.
  • Two discs 102 and 102' are rotatable about the shaft 104 and the axis XX 'and allow the controlled winding of an apron T for close an opening O.
  • Two compensating springs 103 and 103 'each have a first end 131 or 131' integral with a disk 102 or 102 'and a second end 132 or 132' integral with a ring 106 or 106 'mounted, with the possibility of rotation, on the shaft 104.
  • the ring 106 forms a sleeve 163 inside which is disposed a brake spring 107 whose ends 171 and 172 are provided to interact with a projection 181 monoblock with a ring 108 mounted, with possibility of rotation, around the shaft 104.
  • the centripetal force E exerted by the spring 107 on the shaft 104 can, as previously, be controlled by the ring 108.
  • An equivalent structure is provided at the ring 106 'which is associated with a brake spring 107' and a control ring 108 '.
  • the elements similar to those of the first embodiment carry identical references increased by 200.
  • the deck T of an installation can be selectively wound around a horizontal axis XX 'which is a central axis d a fixed and circular shaft 204, this shaft being supported by a bracket 241 fixed to the masonry M of a building.
  • a spacer disk 202 supports a hollow tube 245 around the shaft 204.
  • An equivalent disk is provided on the opposite side of the installation, which keeps the tube 245 in a position centered on the X-X 'axis. , with possibility of rotation, for the selective winding of the deck T.
  • a compensation spring 203 is more or less banded between a frustoconical surface 221 of the disk 202 and a frustoconical surface 261 of a ring 206 similar to the rings 6 and 106 of the first and second embodiments.
  • a brake spring 207 and a control ring 208 are associated with the ring 206, which makes it possible to control the centripetal force E exerted by the spring 207 on the shaft 204.
  • the ring 208 is provided with notches 283 in which can be introduced an actuator, such as the end 292 of screwdriver 209. to do this, the tube 245 is provided with a hole 245 a in which can be inserted the tip 292.
  • an electric gear motor 343 is housed in a circular section box 304 which is fixed relative to the masonry M d a building through a console 341.
  • the output shaft 344 of the geared motor 343 is inserted in a central opening 322 of a disk 323 driving in rotation of a hollow tube 345 forming a winding shaft of the deck T of the installation about a geometric axis XX 'which is the central axis of the housing 304.
  • a circular spacer 302 is rotationally integral with the tube 345 and rotatably mounted around the housing 304.
  • a compensation spring 303 is disposed around the housing 303, inside the tube 345. This spring 303 is fixed by one of its ends 331 to the spacer 302 and at its other end 332 to a ring 306 similar to the rings 6, 106 and 206 of the previous embodiments.
  • a brake spring 307 is disposed around the housing 304 inside a sleeve 363 formed by the ring 306. The curved ends 371 and 372 of the spring 307 are capable of interacting with a projection 381 of a control ring 308 mounted, with possibility of rotation, around the housing 304. It can thus affect the intensity of the centripetal force E exerted by the spring 307 on the housing 304.
  • the tube 345 is provided with several openings 345 providing access to the grooves 383 formed on the outer radial surface of the ring 308, in order to control the angular position of the ring 308 about the axis XX 'and after the radial expansion of the spring 307, cause the ring 306 to rotate about the axis XX 'to arm the spring 303 more or less.
  • the deck T of an installation can be selectively wound around a horizontal axis XX 'which is a central geometric axis of a hollow tube 445.
  • the hollow tube is integral in rotation with a ring 405 pivotally mounted about the axis XX 'on a support 442 fixed on a bracket 441 immobilized relative to the masonry M of the building.
  • a shaft 408 extends generally along axis XX 'passing through the element 441 and 442 and is equipped, at a first end 408 has a square drive adapted to cooperate with a key, a crank or any other means for controlling the rotation of the shaft 408.
  • the shaft 408 is surrounded by a ring 406 rotatable with a limited angular movement, around the end 408 b.
  • a circlip 492 makes it possible to axially immobilize the ring 406 on the shaft 408.
  • the shaft 408 is provided with a radial projection 481, whereas the ring 406 forms a sleeve 463 which partially surrounds the shaft 408, at the Except for the projection 481.
  • the elements 463 and 481 are disposed inside a cup 443 extending a hollow shaft 404 integral with the support 442.
  • a brake spring 407 is disposed between the elements 463 and 481, on the one hand, and the cup 443, on the other hand.
  • the ends of the spring 407 are respectively noted 471 and 472.
  • a compensating spring 403 is disposed between the rings 405 and 406 being integral in rotation with each of them.
  • the ring 406 exerts on one of the end 471 or 472 a force which results in a centrifugal expansion of the spring 407, this expansion inducing a centrifugal force E for locking the spring 407 relative to to the cup 443, that is to say through it and through the shaft 404 relative to the support 442 and the masonry M of the building.
  • the apron T of a closure installation can be selectively wound around a horizontal axis XX 'on which is centered a hollow tube 545 for winding an apron T.
  • a console 541 is fixed relative to the masonry M of a building, this bracket supporting a housing 504 containing the same elements as the housing 304 of the fourth embodiment.
  • An output shaft 544 of the casing 504 is integral with a disk 523 for rotating the tube 545.
  • a ring 505 is rotatably fixed around the end of the casing 504 farthest from the bracket 541, whereas a second ring 506 is mounted around the end of this housing closest to the console with the possibility of rotation.
  • a compensation spring 503 is banded between the rings 505 and 506, while a third ring 508 is rotatably mounted around the housing 504 near the ring 506.
  • the ring 508 is provided with a projection 581 adapted to be engaged in a notch 564 formed by the ring 506.
  • a ring 504 'integral with the tube 545 is also mounted, with possibility of rotation and near the ring 506, around the housing 504, this ring 504' forming a sleeve 547 which at least partially surrounds the rings 508 and 506, and a spring of brake 507 whose ends 571 and 572 are engaged in the notch 564, on either side of the end 581.
  • the ring 508 accessible through one or more openings 545 a formed in the ring 504 ', being provided with peripheral reliefs 583 such as grooves for controlling the intensity of the centrifugal clamping force E exerted by the spring 507 on the ring 504' integral with the tube 545.
  • this embodiment differs from the previous ones insofar as the unidirectional coupling, which comprises a brake spring, is integrated between the compensation spring 503 and the apron T and not between this spring and the masonry M, as in the previous cases.
  • the unidirectional coupling which comprises a brake spring
  • the seventh embodiment of the invention shown in Figures 13 and 14 relates to an application of the invention in the case where a spring box 633 is used to contain a compensation spring 603 of the weight of an apron T intended to be wound around a horizontal axis XX 'also forming axis of symmetry d a tube 604 supported by a console 641 immobilized relative to the masonry M of a building.
  • One end 631 of spring 603 is fixed to the housing 633 a of the box 633 which rotates about the axis XX 'during winding or unwinding of the apron T.
  • the second end 632 of spring 603 is secured to a ring 606 pivotally mounted about the shaft 604 and extended by a sleeve 663 also surrounding the shaft 604 and within which is disposed a brake spring 607 whose curved ends 671 and 672 extend in a notch 664 formed in the sleeve 663.
  • a ring 608 provided with a projection 681 engaged in the notch 664 makes it possible, as before, to control the intensity of a centripetal force E directed towards the axis XX 'and exerted by the brake spring 607.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Joints Allowing Movement (AREA)
  • Window Of Vehicle (AREA)
  • Cable Accessories (AREA)
  • Details Of Television Scanning (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The invention relates to a mechanism comprising at least one spring ( 3 ) for compensating the weight of a closing screen, said spring ( 3 ) being fixed, at one of its ends ( 32 ), to a ring ( 6 ) which is rotatably arranged around a shaft ( 4 ) having a circular cross-section. A stop spring ( 7 ) which is arranged around the shaft ( 4 ) ensures a one-way coupling between the ring ( 6 ) and the shaft ( 4 ), means ( 8 ) being provided for controlling the centripetal effort exerted on said shaft ( 4 ) by the stop spring ( 7 ).

Description

L'invention a trait à un mécanisme de manoeuvre d'une installation de fermeture ou de protection solaire. L'invention a également trait à une installation de fermeture ou de protection solaire incorporant un tel mécanisme.The invention relates to a mechanism for operating a closure or sun protection system. The invention also relates to a closure or sun protection system incorporating such a mechanism.

Par installation de fermeture, on entend les portes, portails, volets, grilles et matériels équivalents.Closure installation means doors, gates, shutters, grilles and equivalent materials.

Dans une installation de fermeture ou de protection solaire, un écran, qui peut être un tablier souple ou un panneau rigide ou semi-rigide, est déplacé en regard d'une ouverture afin d'obturer sélectivement celle-ci. Le poids de cet écran exerce sur les moyens d'entraînement un couple variable, notamment en fonction de la position de cet écran. Il est connu d'utiliser des ressorts duit « de compensation » pour compenser au moins partiellement ce couple.In a closure or sun protection system, a screen, which may be a flexible apron or a rigid or semi-rigid panel, is moved opposite an opening in order to selectively close it. The weight of this screen exerts on the drive means a variable torque, in particular depending on the position of this screen. It is known to use springs duit "compensation" to compensate at least partially this couple.

Pour qu'une installation fonctionne correctement, il est nécessaire que l'effort de compensation exercé par le ressort soit adapté au couple développé par l'écran qui influe sur les moyens d'entraînement. Ce couple est fonction des dimensions de l'écran, de son poids spécifique et de sa position par rapport à l'ouverture. Il est donc connu de prévoir des moyens de réglage d'un ressort de compensation, notamment lors de son armage initial. US-A-4,817,927 décrit un mécanisme correspondant au préambule de la revendication 1 qui enseigne de monter une extrémité d'un ressort de compensation sur une bague susceptible de tourner autour d'un axe fixe de l'installation et d'immobiliser cette bague en rotation par rapport à cet axe grâce à une vis qui, lors .du réglage de la tension du ressort, doit être desserrée. Ceci impose à l'opérateur d'exercer, lors de ce réglage, un couple sur la bague, afin d'éviter un désarmage accidentel et brutal du ressort. Il est donc nécessaire à l'opérateur de manipuler d'une main un outil permettant d'exercer un couple sur la bague et de l'autre main la vis de blocage, ceci imposant un geste technique particulier, qui n'est pas nécessairement à la portée d'une personne peu expérimentée.For an installation to work properly, it is necessary that the compensation force exerted by the spring is adapted to the torque developed by the screen which influences the drive means. This torque is a function of the dimensions of the screen, its specific weight and its position relative to the opening. It is therefore known to provide adjustment means of a compensation spring, especially during its initial arming. US Patent 4,817,927 discloses a mechanism corresponding to the preamble of claim 1 which teaches mounting an end of a compensation spring on a ring rotatable about a fixed axis of the installation and immobilize the ring in rotation relative to this axis by means of a screw which, when adjusting the spring tension, must be loosened. This requires the operator to exercise, during this adjustment, a torque on the ring, so to avoid an accidental and brutal disarming of the spring. It is therefore necessary for the operator to manipulate with one hand a tool for exerting a torque on the ring and the other hand the locking screw, this imposing a particular technical gesture, which is not necessarily necessary. the reach of an inexperienced person.

Il est également connu, par exemple de US-A-4,981,165 , d'utiliser un système à roue et vis sans fin pour le réglage en position d'une bague sur laquelle est immobilisée l'extrémité d'un ressort de compensation. Un tel dispositif est relativement complexe et coûteux.It is also known, for example from US Patent 4,981,165 , to use a wheel and worm system for the adjustment in position of a ring on which is immobilized the end of a compensation spring. Such a device is relatively complex and expensive.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant un mécanisme de manoeuvre dans lequel la tension d'un ressort de compensation peut être réglée de façon aisée et en sécurité, au moyen d'un dispositif simple et fiable.It is these drawbacks that the invention intends to remedy more particularly by providing an operating mechanism in which the tension of a compensation spring can be adjusted easily and safely, by means of a simple and reliable device. .

Dans cet esprit, l'invention concerne un mécanisme de manoeuvre d'une installation de fermeture ou de protection solaire, ce mécanisme étant monté dans ou sur une structure fixe et comprenant un écran d'obturation d'une ouverture ménagé dans cette structure, alors qu'il comprend également au moins un ressort de compensation du poids de cet écran, ce ressort étant cinématiquement relié, par l'une de ses extrémités, avec la structure fixe précitée et, par son autre extrémité, avec l'écran précité. Ce mécanisme est caractérisé en ce qu'il comprend un dispositif d'accouplement unidirectionnel incluant un ressort-frein disposé entre le ressort de compensation et la structure fixe ou entre le ressort de compensation et l'écran, alors que des moyens solidaires du ressort de compensation sont agencés pour exercer sur le ressort frein un effort centripète ou centrifuge de blocage de celui-ci par rapport à la structure fixe ou à l'écran.In this spirit, the invention relates to a mechanism for operating a closure or sun protection system, this mechanism being mounted in or on a fixed structure and comprising a shutter screen of an opening in this structure, then it also comprises at least one weight compensation spring of this screen, this spring being kinematically connected, at one of its ends, with the aforementioned fixed structure and, at its other end, with the aforementioned screen. This mechanism is characterized in that it comprises a unidirectional coupling device including a brake spring disposed between the compensation spring and the fixed structure or between the compensation spring and the screen, while means integral with the spring of compensation are arranged to exert on the brake spring a centripetal or centrifugal force blocking thereof with respect to the fixed structure or the screen.

Grâce à l'utilisation d'un ressort-frein, on obtient un blocage automatique en rotation de l'extrémité du ressort de compensation liée à l'accouplement par rapport à la structure fixe ou à l'écran. Ce blocage est obtenu tant qu'il n'y a pas application d'un effort volontaire de réglage visant à modifier la position angulaire de cette extrémité, c'est-à-dire à modifier la tension du ressort de compensation. L'effort de blocage est à nouveau exercé dès que cesse l'effort de réglage, à la différence des dispositifs connus, par exemple de US-A-4,817,927 . L'invention procède donc d'une utilisation originale et particulièrement avantageuse d'un ressort-frein dont le fonctionnement est connu par ailleurs, par exemple de FR-A-1 425 353 , pour d'autres applications.Through the use of a brake spring, there is obtained an automatic locking in rotation of the end of the compensation spring associated with the coupling relative to the fixed structure or the screen. This blocking is obtained as long as there is no application of a deliberate adjustment effort to change the angular position of this end, that is to say to change the tension of the compensation spring. The blocking force is again exerted as soon as the adjustment force ceases, unlike the known devices, for example US Patent 4,817,927 . The invention thus proceeds from an original and particularly advantageous use of a brake spring whose operation is known elsewhere, for example from FR-A-1,425,353 , for other applications.

Selon des aspects avantageux mais non obligatoires de l'invention, le mécanisme incorpore une ou plusieurs des caractéristiques suivantes :

  • Les moyens permettant d'exercer l'effort de blocage comprennent une bague disposée, avec possibilité de rotation, autour ou partiellement à l'intérieur d'un élément à section circulaire. La bague peut être pourvue d'un logement de réception des deux extrémités recourbées du ressort-frein. Ce logement est avantageusement pourvu de deux surfaces aptes à exercer sur ces extrémités un effort de rapprochement relatif.
  • Il est prévu des moyens de réglage de l'intensité de l'effort de blocage. Ces moyens permettent de diminuer ou de supprimer l'effort exercé par le ressort frein et de libérer ainsi l'une des extrémité du ressort de compensation pour permettre le réglage de sa tension. Ces moyens de réglage comprennent avantageusement une bague montée, avec possibilité de rotation, autour d'un élément à section circulaire et pourvue d'une saillie apte à être intercalée entre les extrémités recourbées du ressort-frein. On peut, en outre, prévoir que cette bague est pourvue de crans ou encoches d'interaction avec un outil de commande de sa position angulaire autour de l'élément circulaire. Ainsi, l'outil permet d'exercer sur la bague un effort de rotation autour de l'élément à section circulaire, cet effort étant transmis par la saillie à l'une ou l'autre des extrémités recourbées du ressort-frein, ce qui a pour effet de dilater celui-ci en libérant la bague solidaire du ressort de compensation qui peut alors tourner dans le sens désiré. En variante, les moyens de réglage précités peuvent comprendre un arbre pourvu d'une saillie radiale apte à être intercalée entre les extrémités recourbées du ressort-frein.
  • Selon un premier mode de réalisation, l'élément circulaire est un arbre central fixe s'étendant sur sensiblement toute la largeur de l'ouverture à obturer.
  • Selon un autre mode de réalisation, l'élément circulaire est un boîtier d'un dispositif d'entraînement en rotation d'un organe d'enroulement de l'écran d'obturation ou d'un élément de transmission d'effort associé.
  • L'effort de blocage est centripète et exercé sur l'élément à section circulaire.
  • Selon une variante de réalisation de l'invention, l'élément à section circulaire entoure le ressort-frein et une partie de la bague exerçant l'effort de blocage, cet effort étant centrifuge et exercé sur l'élément à section circulaire.
  • Le ressort, la bague, l'élément circulaire et les moyens de commande peuvent être au moins partiellement logés à l'intérieur d'un arbre d'enroulement de l'écran d'obturation ou d'un élément de transmission d'effort associé. Dans ce cas, cet arbre d'enroulement est avantageusement pourvu d'au moins une ouverture d'accès aux moyens de commande, notamment par un outil approprié.
According to advantageous but non-obligatory aspects of the invention, the mechanism incorporates one or more of the following features:
  • The means for exerting the locking force comprise a ring arranged, with possibility of rotation, around or partially inside a circular section element. The ring may be provided with a housing for receiving the two curved ends of the brake spring. This housing is advantageously provided with two surfaces capable of exerting on these ends a relative approaching force.
  • Means for adjusting the intensity of the blocking force are provided. These means make it possible to reduce or eliminate the force exerted by the brake spring and thus to release one end of the compensation spring to allow adjustment of its tension. These adjustment means advantageously comprise a ring mounted, with possibility of rotation, around a circular section element and provided with a projection adapted to be interposed between the curved ends of the brake spring. It can further be provided that this ring is provided with notches or notches for interaction with a tool for controlling its angular position around the circular element. Thus, the tool makes it possible to exert on the ring a rotational force around the element with circular section, this force being transmitted by the projection to one or the other of the curved ends of the brake spring, which has the effect of expanding it by releasing the integral ring of the compensation spring which can then rotate in the desired direction. As a variant, the above-mentioned adjustment means may comprise a shaft provided with a radial projection adapted to be interposed between the curved ends of the brake spring.
  • According to a first embodiment, the circular element is a fixed central shaft extending over substantially the entire width of the opening to be closed.
  • According to another embodiment, the circular element is a housing of a device for driving in rotation a winding member of the shutter screen or an associated force transmission element.
  • The locking force is centripetal and exerted on the circular section element.
  • According to an alternative embodiment of the invention, the circular section element surrounds the brake spring and a portion of the ring exerting the locking force, this force being centrifuged and exerted on the circular section element.
  • The spring, the ring, the circular element and the control means can be at least partially housed inside a winding shaft of the shutter screen or an associated force transmission element . In this case, this winding shaft is advantageously provided with at least one access opening to the control means, in particular by a suitable tool.

L'invention concerne enfin une installation de fermeture de protection solaire qui comprend un mécanisme tel que précédemment décrit. Une telle installation est fiable et économique, alors qu'elle offre la possibilité d'un réglage aisé et sans danger, sur son site d'utilisation, de la tension d'un ressort de compensation qu'elle inclut.The invention finally relates to a sun protection closure system which comprises a mechanism as previously described. Such an installation is reliable and economical, while it offers the possibility of easy and safe adjustment, at its site of use, the tension of a compensation spring that includes.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre de sept modes de réalisation d'une installation de fermeture conforme à l'invention, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une coupe longitudinale partielle d'une installation conforme à un premier mode de réalisation de l'invention ;
  • la figure 2 est une vue en perspective éclatée des éléments représentés dans le détail II à la figure 1 ;
  • la figure 3 est une vue en perspective des éléments représentés à la figure 2 vus sous un autre angle ;
  • la figure 4 est une vue dans le sens de la flèche IV à la figure 1, lors du réglage de la tension d'un ressort de compensation ;
  • la figure 5 est une coupe longitudinale d'une installation conforme à un second mode de réalisation de l'invention ;
  • la figure 6 est une vue analogue à la figure 1 pour une installation conforme à un troisième mode de réalisation de l'invention ;
  • la figure 7 est une vue en perspective d'une partie de l'installation de la figure 6, lors du réglage de la tension d'un ressort de compensation ;
  • la figure 8 est une vue analogue à la figure 6 pour une installation conforme à un quatrième mode de réalisation de l'invention ;
  • la figure 9 est une vue analogue à la figure 6 pour un mécanisme conforme à un cinquième mode de réalisation de l'invention ;
  • la figure 10 est une coupe selon la ligne X-X à la figure 9 ;
  • la figure 11 est une vue analogue à la figure 6 pour un mécanisme conforme à un sixième mode de réalisation de l'invention ;
  • la figure 12 est une coupe selon la ligne XII-XII à la figure 11 ;
  • la figure 13 est une coupe longitudinale partielle d'un mécanisme conforme à un septième mode de réalisation de l'invention et
  • la figure 14 est une section selon la ligne XIV-XIV à la figure 13.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of seven embodiments of a closure installation according to the invention, given solely as a example and with reference to the accompanying drawings in which:
  • the figure 1 is a partial longitudinal section of an installation according to a first embodiment of the invention;
  • the figure 2 is an exploded perspective view of the elements represented in detail II to figure 1 ;
  • the figure 3 is a perspective view of the elements represented in figure 2 seen from another angle;
  • the figure 4 is a view in the direction of arrow IV to the figure 1 when adjusting the voltage of a compensation spring;
  • the figure 5 is a longitudinal section of an installation according to a second embodiment of the invention;
  • the figure 6 is a view similar to the figure 1 for an installation according to a third embodiment of the invention;
  • the figure 7 is a perspective view of a part of the installation of the figure 6 when adjusting the voltage of a compensation spring;
  • the figure 8 is a view similar to the figure 6 for an installation according to a fourth embodiment of the invention;
  • the figure 9 is a view similar to the figure 6 for a mechanism according to a fifth embodiment of the invention;
  • the figure 10 is a section along the line XX to the figure 9 ;
  • the figure 11 is a view similar to the figure 6 for a mechanism according to a sixth embodiment of the invention;
  • the figure 12 is a section along the line XII-XII to the figure 11 ;
  • the figure 13 is a partial longitudinal section of a mechanism according to a seventh embodiment of the invention and
  • the figure 14 is a section according to line XIV-XIV at the figure 13 .

L'installation représentée aux figures 1 à 4 comprend un tablier T destiné à être sélectivement enroulé autour d'un axe géométrique sensiblement horizontal X-X' fixe par rapport à la maçonnerie M d'un bâtiment dans laquelle est ménagée une ouverture O à obturer avec le tablier T. Le tablier T est relié par plusieurs sangles, dont une seule est visible à la figure 1 avec la référence 1, à des disques d'enroulement, dont un seul est visible à la figure 1 avec la référence 2. Deux ressorts de compensation 3 et 3' sont montés pour exercer sur le disque 2 un effort opposé au couple résultant du poids du tablier T par rapport à l'axe X-X'. Les disques 2 et équivalents sont montés libres en rotation autour d'un arbre 4 à section circulaire qui est fixé, grâce à des consoles 41, par rapport à la maçonnerie M.The installation represented Figures 1 to 4 comprises an apron T intended to be selectively wound around a substantially horizontal geometric axis XX 'fixed relative to the masonry M of a building in which is formed an opening O to be closed with the deck T. The deck T is connected by several straps, only one of which is visible at figure 1 with reference 1, to winding disks, only one of which is visible at figure 1 with the reference 2. Two compensation springs 3 and 3 'are mounted to exert on the disk 2 a force opposite the torque resulting from the weight of the deck T with respect to the axis X-X'. The disks 2 and the like are rotatably mounted around a circular section shaft 4 which is fixed, by means of brackets 41, with respect to the masonry M.

Des moyens d'entraînement du tablier T en rotation autour de l'axe X-X' peuvent être prévus, ces moyens d'entraînement pouvant être mécaniques ou électriques. En variante, le tablier T est commandé par une action directe de l'utilisateur sur la latte inférieure de celui-ci.Drive means for driving the apron T in rotation around the axis X-X 'may be provided, these drive means being able to be mechanical or electrical. Alternatively, the deck T is controlled by a direct action of the user on the lower batten thereof.

Les ressorts 3 et 3' sont chacun immobilisés sur la surface tronconique 51 ou 51' de deux bagues 5 et 5' rendues solidaires par des clavettes 52, la bague 5' étant en prise avec le disque 2. En pratique, une première extrémité 31 ou 31' d'un ressort 3 ou 3' est enroulée sur une surface 51 ou 51', un crochet étant éventuellement formé pour ancrer fermement ces extrémités par rapport aux bagues 5 et 5'.The springs 3 and 3 'are each immobilized on the frustoconical surface 51 or 51' of two rings 5 and 5 'made integral by keys 52, the ring 5' being in engagement with the disk 2. In practice, a first end 31 or 31 'of a spring 3 or 3' is wound on a surface 51 or 51 ', a hook being optionally formed to firmly anchor these ends relative to the rings 5 and 5'.

Au niveau de leurs extrémités respectives opposées, 32 et 321, les ressorts 3 et 3' sont immobilisés sur des bagues 6 et 6' qui comprennent chacune une surface tronconique 62 ou 62' de réception des extrémités 32 et 32'.At their respective opposite ends, 32 and 32 1 , the springs 3 and 3 'are immobilized on rings 6 and 6' which each comprise a frustoconical surface 62 or 62 'for receiving the ends 32 and 32'.

Comme il ressort des figures 2 et 3, la bague 6 est pourvue d'une ouverture centrale 61 de forme circulaire et dont le diamètre lui permet de tourner autour de l'arbre 4. La surface 62 est étagée pour faciliter la mise en place de l'extrémité 32 du ressort 3. La bague 6 comprend également un manchon 63 dans lequel est ménagée une encoche 64 dont on note 641 et 642 les bords latéraux et 643 le bord de fond.As is apparent from figures 2 and 3 , the ring 6 is provided with a central opening 61 of circular shape and whose diameter allows it to rotate about the shaft 4. The surface 62 is stepped to facilitate the introduction of the end 32 of the spring 3. The ring 6 also comprises a sleeve 63 in which is formed a notch 64 which is noted 641 and 642 the side edges and 643 the bottom edge.

Un ressort 7 est disposé autour de l'arbre 4 et à l'intérieur du manchon 63. On note 71 et 72 les extrémités du ressort 7 qui est un ressort-frein en ce sens qu'il est apte à freiner la bague 6 par rapport à l'arbre 4, c'est-à-dire, en pratique, à immobiliser en rotation la bague 6 autour de l'axe X-X' grâce à un effort centripète E.A spring 7 is arranged around the shaft 4 and inside the sleeve 63. It is noted 71 and 72 the ends of the spring 7 which is a brake spring in that it is able to brake the ring 6 by relative to the shaft 4, that is to say, in practice, to immobilize in rotation the ring 6 about the axis XX 'through a centripetal force E.

Une seconde bague 8 est également montée autour de l'arbre 4, avec possibilité de rotation, cette bague étant pourvue d'une saillie 81 qui s'étend, par rapport à un côté 82 de la bague 8, selon une direction globalement parallèle à l'axe X-X'. La saillie 81 a une largeur lui permettant d'être insérée entre les extrémités 71 et 72 du ressort-frein 7, alors que l'encoche 64 a une largeur lui permettant de recevoir les extrémités 71 et 72 entre les bords 641 et 642.A second ring 8 is also mounted around the shaft 4, with the possibility of rotation, this ring being provided with a projection 81 which extends, with respect to a side 82 of the ring 8, in a direction generally parallel to the axis X-X '. The projection 81 has a width allowing it to be inserted between the ends 71 and 72 of the brake spring 7, while the notch 64 has a width allowing it to receive the ends 71 and 72 between the edges 641 and 642.

La bague 8 est également pourvue de plusieurs rainures périphériques 83 qui permettent d'exercer aisément sur la bague 8 un couple par rapport à l'axe X-X'.The ring 8 is also provided with a plurality of peripheral grooves 83 which make it possible to easily exert on the ring 8 a torque with respect to the axis X-X '.

Le fonctionnement est le suivant :The operation is as follows:

Par défaut, et en l'absence d'action sur la bague 8, lorsqu'un couple C1 est exercé sur la.bague 6 par le ressort 3 du fait de son armage, ce couple C1 a pour effet de déplacer le bord 641 de l'encoche 64 jusqu'au contact de l'extrémité 71 du ressort 7, le bord 641 exerçant alors sur l'extrémité 71 un effort F1 dirigé vers le bord 642, ce qui a pour effet de resserrer le ressort 7 sur l'arbre 4 en augmentant l'intensité de l'effort centripète E de blocage du ressort 7 sur l'arbre 4. Le mouvement de la bague 6 est ainsi-limité par son interaction avec l'extrémité 71.By default, and in the absence of action on the ring 8, when a torque C 1 is exerted on the ring 6 by the spring 3 because of its arming, this pair C 1 has the effect of moving the edge 641 of the notch 64 to the contact of the end 71 of the spring 7, the edge 641 then exerting on the end 71 a force F 1 directed towards the edge 642, which has the effect of tightening the spring 7 on the shaft 4 by increasing the intensity of the centripetal force E locking the spring 7 on the shaft 4. The movement of the ring 6 is thus limited by its interaction with the end 71.

Si un couple C2 dirigé en sens inverse par rapport au couple C1 est exercé par le ressort 3 sur la bague 6, ce couple se traduit par un déplacement du bord 642 jusqu'au contact de l'extrémité 72 du ressort 7 et, comme précédemment, par un resserrement de ce ressort sur l'arbre 4 et par une augmentation de l'effort centripète de blocage E.If a torque C 2 directed in the opposite direction to the torque C 1 is exerted by the spring 3 on the ring 6, this torque results in a displacement of the edge 642 until it reaches the end 72 of the spring 7 and, as previously, by a tightening of this spring on the shaft 4 and by an increase in the centripetal locking force E.

Ainsi, le ressort-frein 7 permet d'immobiliser la bague 6 sur l'arbre 4, malgré les couples C1 ou C2 transmis par le ressort 3.Thus, the brake spring 7 makes it possible to immobilize the ring 6 on the shaft 4, despite the pairs C 1 or C 2 transmitted by the spring 3.

Il est cependant possible de faire tourner la bague 6 autour de l'axe X-X' afin de régler la tension du ressort 3. En effet, lorsqu'un couple C3 est exercé sur la bague 8 vers la droite à la figure 3, ceci a pour effet d'amener un bord 811 de la saillie 81 jusqu'en contact avec l'extrémité 71 du ressort 7, puis d'exercer sur cette extrémité un effort F'1 opposé à l'effort F1 précédemment mentionné, cet effort F'1 ayant pour effet de dilater radialement le ressort 7 qui relâche alors son effort centripète E sur l'arbre 4. Il est ainsi possible d'entraîner en rotation, dans le sens du couple C3, à la fois la bague 8, le ressort 7 et la bague 6, ce qui a pour effet de modifier la tension du ressort 3.It is however possible to rotate the ring 6 about the axis XX 'to adjust the tension of the spring 3. Indeed, when a torque C 3 is exerted on the ring 8 to the right at the figure 3 this has the effect of bringing an edge 811 of the projection 81 into contact with the end 71 of the spring 7, then to exert on this end a force F ' 1 opposite the force F 1 mentioned above, this effort F ' 1 having the effect of radially expanding the spring 7 which then relaxes its centripetal force E on the shaft 4. It is thus possible to drive in rotation, in the direction of the torque C 3 , both the ring 8, the spring 7 and the ring 6, which has the effect of changing the tension of the spring 3.

Un réglage en sens inverse peut être obtenu en exerçant un couple C4, dirigé en sens inverse du coupe C3. L'effort C4 induit un déplacement du bord opposé 812 de la saillie 81 jusqu'au contact de l'extrémité 72, puis un déplacement de cette extrémité en direction du bord 641, ce qui a pour effet de dilater le ressort 7 et de permettre ainsi l'entraînement de la bague 6 dans le sens du couple C4.An adjustment in the opposite direction can be obtained by exerting a torque C 4 , directed in the opposite direction of the cut C 3 . The force C 4 induces a displacement of the opposite edge 812 of the projection 81 to the contact of the end 72, then a displacement of this end towards the edge 641, which has the effect of expanding the spring 7 and thus allow driving of the ring 6 in the direction of the torque C 4 .

Comme représenté à la figure 4, une clé 9 peut être utilisée pour exercer le couple C3 grâce à un effort F3 exercé sur son manche 91. La clé 9 est pourvue d'un nez 92 adapté pour pénétrer dans l'une des rainures 83. Lorsque le couple C4 doit être appliqué, la clé 9 est retournée et un effort en sens inverse de l'effort F3 est exercé sur le manche 91.As represented in figure 4 a key 9 can be used to exert the torque C 3 through a force F 3 exerted on its handle 91. The key 9 is provided with a nose 92 adapted to penetrate into one of the grooves 83. When the torque C 4 must be applied, the key 9 is returned and a force in the opposite direction of the force F 3 is exerted on the handle 91.

Selon une variante non représentée de l'invention, la structure représentée aux figures 1 à 4 peut être modifiée de telle sorte que les bague 5 et 5' sont fixées sur une console montée sur la structure fixe du bâtiment, l'axe 4 étant alors tournant et portant à ses extrémités des poulies sur lesquelles s'enroule un câble de levage relié au tablier T. Pour le reste, le fonctionnement est analogue à celui mentionné ci-dessus.According to a not shown variant of the invention, the structure represented in FIGS. Figures 1 to 4 can be modified so that the ring 5 and 5 'are fixed on a console mounted on the fixed structure of the building, the axis 4 then being rotating and carrying at its ends pulleys on which a connected lifting cable is wound to the apron T. For the rest, the operation is similar to that mentioned above.

Dans le second mode de réalisation de l'invention représenté à la figure 5, les éléments analogues à ceux du premier mode de réalisation portent des références identiques augmentées de 100. Dans cette installation, un arbre fixe 104 est immobilisé par rapport à la maçonnerie M d'un bâtiment grâce à des consoles 141 et 141'. On note X-X' l'axe longitudinal de l'arbre 104. Deux disques 102 et 102' sont mobiles en rotation autour de l'arbre 104 et de l'axe X-X' et permettent l'enroulement commandé d'un tablier T destiné à obturer une ouverture O.In the second embodiment of the invention shown in figure 5 , elements similar to those of the first embodiment carry identical references increased by 100. In this installation, a fixed shaft 104 is immobilized relative to the masonry M of a building through consoles 141 and 141 '. XX 'is the longitudinal axis of the shaft 104. Two discs 102 and 102' are rotatable about the shaft 104 and the axis XX 'and allow the controlled winding of an apron T for close an opening O.

Deux ressorts de compensation 103 et 103' ont chacun une première extrémité 131 ou 131' solidaire d'un disque 102 ou 102' et une seconde extrémité 132 ou 132' solidaire d'une bague 106 ou 106' montée, avec possibilité de rotation, sur l'arbre 104. Comme précédemment, la bague 106 forme un manchon 163 à l'intérieur duquel est disposé un ressort-frein 107 dont les extrémités 171 et 172 sont prévues pour interagir avec une saillie 181 monobloc avec une bague 108 montée, avec possibilité de rotation, autour de l'arbre 104. L'effort centripète E exercé par le ressort 107 sur l'arbre 104 peut, comme précédemment, être commandé grâce à la bague 108.Two compensating springs 103 and 103 'each have a first end 131 or 131' integral with a disk 102 or 102 'and a second end 132 or 132' integral with a ring 106 or 106 'mounted, with the possibility of rotation, on the shaft 104. As before, the ring 106 forms a sleeve 163 inside which is disposed a brake spring 107 whose ends 171 and 172 are provided to interact with a projection 181 monoblock with a ring 108 mounted, with possibility of rotation, around the shaft 104. The centripetal force E exerted by the spring 107 on the shaft 104 can, as previously, be controlled by the ring 108.

Une structure équivalente est prévue au niveau de la bague 106' qui est associée à un ressort-frein 107' et à une bague de commande 108'.An equivalent structure is provided at the ring 106 'which is associated with a brake spring 107' and a control ring 108 '.

Dans le troisième mode de réalisation de l'invention représenté aux figures 6 et 7, les éléments analogues à ceux du premier mode de réalisation portent des références identiques augmentées de 200. Dans ce mode de réalisation, le tablier T d'une installation peut être sélectivement enroulé autour d'un axe horizontal X-X' qui est un axe central d'un arbre fixe et circulaire 204, cet arbre étant supporté par une console 241 fixée sur la maçonnerie M d'un bâtiment.In the third embodiment of the invention shown in Figures 6 and 7 , the elements similar to those of the first embodiment carry identical references increased by 200. In this embodiment, the deck T of an installation can be selectively wound around a horizontal axis XX 'which is a central axis d a fixed and circular shaft 204, this shaft being supported by a bracket 241 fixed to the masonry M of a building.

Un disque entretoise 202 soutient un tube creux 245 autour de l'arbre 204. Un disque équivalent est prévu sur le côté opposé de l'installation, ce qui permet de maintenir le tube 245 dans une position centrée sur l'axe X-X', avec possibilité de rotation, pour l'enroulement sélectif du tablier T.A spacer disk 202 supports a hollow tube 245 around the shaft 204. An equivalent disk is provided on the opposite side of the installation, which keeps the tube 245 in a position centered on the X-X 'axis. , with possibility of rotation, for the selective winding of the deck T.

Un ressort de compensation 203 est plus ou moins bandé entre une surface tronconique 221 du disque 202 et une surface tronconique 261 d'une bague 206 analogue aux bagues 6 et 106 des premier et second modes de réalisation. Un ressort-frein 207 et une bague de commande 208 sont associés à la bague 206, ce qui permet de contrôler l'effort centripète E exercé par le ressort 207 sur l'arbre 204. La bague 208 est pourvue d'encoches 283 dans lesquelles peut être introduit un organe de manoeuvre, tel que l'extrémité 292 d'un tournevis 209. Pour ce faire, le tube 245 est pourvu d'un orifice 245a dans lequel peut être introduite la pointe 292. Il est ainsi possible d'exercer sur le manche 291 du tourne-vis 209 un effort F4 ou F'4 tel que la tige 293 du tourne-vis 209 pivote autour de son point d'appui sur le bord de l'orifice 245a, de telle sorte qu'un effort correspondant F5 ou F'5 est exercé dans l'une des encoches 283. Ceci a pour effet de faire tourner la bague 208 et, comme précédemment, de dilater le ressort 207, d'entraîner la bague 206 et d'armer plus ou moins le ressort 203.A compensation spring 203 is more or less banded between a frustoconical surface 221 of the disk 202 and a frustoconical surface 261 of a ring 206 similar to the rings 6 and 106 of the first and second embodiments. A brake spring 207 and a control ring 208 are associated with the ring 206, which makes it possible to control the centripetal force E exerted by the spring 207 on the shaft 204. The ring 208 is provided with notches 283 in which can be introduced an actuator, such as the end 292 of screwdriver 209. to do this, the tube 245 is provided with a hole 245 a in which can be inserted the tip 292. It is thus possible to exert on the handle 291 of the screwdriver 209 a force F 4 or F '4 as the rod 293 of the screwdriver 209 pivots around its fulcrum on the edge of the opening 245 a, so that a corresponding force F 5 or F ' 5 is exerted in one of the notches 283. This has the effect of rotating the ring 208 and, as before, of expanding the spring 207, of driving the ring 206 and of arm more or less the spring 203.

Dans le quatrième mode de réalisation de l'invention représenté à la figure 8, les éléments analogues à ceux du premier mode de réalisation portent des références identiques augmentées de 300. Dans ce mode de réalisation, un moto-réducteur électrique 343 est logé dans un boîtier à section circulaire 304 qui est fixé par rapport à la maçonnerie M d'un bâtiment grâce à une console 341. L'arbre de sortie 344 du moto-réducteur 343 est inséré dans une ouverture centrale 322 d'un disque 323 d'entraînement en rotation d'un tube creux 345 formant arbre d'enroulement du tablier T de l'installation autour d'un axe géométrique X-X' qui est l'axe central du boîtier 304.In the fourth embodiment of the invention shown in figure 8 , elements similar to those of the first embodiment carry identical references increased by 300. In this embodiment, an electric gear motor 343 is housed in a circular section box 304 which is fixed relative to the masonry M d a building through a console 341. The output shaft 344 of the geared motor 343 is inserted in a central opening 322 of a disk 323 driving in rotation of a hollow tube 345 forming a winding shaft of the deck T of the installation about a geometric axis XX 'which is the central axis of the housing 304.

Une entretoise circulaire 302 est solidaire en rotation du tube 345 et montée, avec possibilité de rotation, autour du boîtier 304.A circular spacer 302 is rotationally integral with the tube 345 and rotatably mounted around the housing 304.

Un ressort de compensation 303 est disposé autour du boîtier 303, à l'intérieur du tube 345. Ce ressort 303 est fixé par l'une de ses extrémités 331 sur l'entretoise 302 et par son autre extrémité 332 sur une bague 306 analogue aux bagues 6, 106 et 206 des modes de réalisation précédents. Un ressort-frein 307 est disposé autour du boîtier 304 à l'intérieur d'un manchon 363 formé par la bague 306. Les extrémités recourbées 371 et 372 du ressort 307 sont susceptibles d'interagir avec une saillie 381 d'une bague de commande 308 montée, avec possibilité de rotation, autour du boîtier 304. On peut ainsi influer sur l'intensité de l'effort centripète E exercé par le ressort 307 sur le boîtier 304.A compensation spring 303 is disposed around the housing 303, inside the tube 345. This spring 303 is fixed by one of its ends 331 to the spacer 302 and at its other end 332 to a ring 306 similar to the rings 6, 106 and 206 of the previous embodiments. A brake spring 307 is disposed around the housing 304 inside a sleeve 363 formed by the ring 306. The curved ends 371 and 372 of the spring 307 are capable of interacting with a projection 381 of a control ring 308 mounted, with possibility of rotation, around the housing 304. It can thus affect the intensity of the centripetal force E exerted by the spring 307 on the housing 304.

Le tube 345 est pourvu de plusieurs orifices 345a permettant d'accéder à des rainures 383 ménagées sur la surface radiale externe de la bague 308, ceci afin de commander la position angulaire de la bague 308 autour de l'axe X-X' et d'entraîner, après dilatation radiale du ressort 307, la bague 306 en rotation autour de l'axe X-X' pour armer plus ou moins le ressort 303.The tube 345 is provided with several openings 345 providing access to the grooves 383 formed on the outer radial surface of the ring 308, in order to control the angular position of the ring 308 about the axis XX 'and after the radial expansion of the spring 307, cause the ring 306 to rotate about the axis XX 'to arm the spring 303 more or less.

Dans le cinquième mode de réalisation de l'invention représenté aux figures 9 et 10, les éléments analogues à ceux du premier mode de réalisation portent des références identiques augmentées de 400. Dans ce mode de réalisation, le tablier T d'une installation peut être sélectivement enroulé autour d'un axe horizontal X-X' qui est un axe géométrique central d'un tube creux 445. Le tube creux est solidaire en rotation d'une bague 405 montée à pivotement, autour de l'axe X-X' sur un support 442 fixé sur une console 441 immobilisée par rapport à la maçonnerie M du bâtiment.In the fifth embodiment of the invention shown in Figures 9 and 10 , elements similar to those of the first embodiment carry identical references increased by 400. In this embodiment, the deck T of an installation can be selectively wound around a horizontal axis XX 'which is a central geometric axis of a hollow tube 445. The hollow tube is integral in rotation with a ring 405 pivotally mounted about the axis XX 'on a support 442 fixed on a bracket 441 immobilized relative to the masonry M of the building.

Un arbre 408 s'étend globalement selon l'axe X-X' en traversant les élément 441 et 442 et est équipé, au niveau d'une première extrémité 408a, d'un carré d'entraînement apte à coopérer avec une clef, une manivelle ou tout autre moyen de commande de la rotation de l'arbre 408.A shaft 408 extends generally along axis XX 'passing through the element 441 and 442 and is equipped, at a first end 408 has a square drive adapted to cooperate with a key, a crank or any other means for controlling the rotation of the shaft 408.

Au niveau de son extrémité 408b opposée à l'extrémité 408a, l'arbre 408 est entouré par une bague 406 pouvant tourner, avec un débattement angulaire limité, autour de l'extrémité 408b. Un circlip 492 permet d'immobiliser axialement la bague 406 sur l'arbre 408. L'arbre 408 est pourvu d'une saillie radiale 481, alors que la bague 406 forme un manchon 463 qui entoure partiellement l'arbre 408, à l'exception de la saillie 481. Les éléments 463 et 481 sont disposés à l'intérieur d'une coupelle 443 prolongeant un arbre creux 404 solidaire du support 442.At its end 408 b opposite to the end 408, the shaft 408 is surrounded by a ring 406 rotatable with a limited angular movement, around the end 408 b. A circlip 492 makes it possible to axially immobilize the ring 406 on the shaft 408. The shaft 408 is provided with a radial projection 481, whereas the ring 406 forms a sleeve 463 which partially surrounds the shaft 408, at the Except for the projection 481. The elements 463 and 481 are disposed inside a cup 443 extending a hollow shaft 404 integral with the support 442.

Un ressort-frein 407 est disposé entre les éléments 463 et 481, d'une part, et la coupelle 443, d'autre part. On note respectivement 471 et 472 les extrémités du ressort 407.A brake spring 407 is disposed between the elements 463 and 481, on the one hand, and the cup 443, on the other hand. The ends of the spring 407 are respectively noted 471 and 472.

Un ressort de compensation 403 est disposé entre les bagues 405 et 406 en étant solidaire en rotation de chacune d'elles.A compensating spring 403 is disposed between the rings 405 and 406 being integral in rotation with each of them.

En fonction du couple transmis par le ressort 403, la bague 406 exerce sur l'une des extrémité 471 ou 472 un effort qui se traduit par une dilatation centrifuge du ressort 407, cette dilatation induisant un effort centrifuge E de blocage du ressort 407 par rapport à la coupelle 443, c'est-à-dire à travers elle et à travers l'arbre 404 par rapport au support 442 et la maçonnerie M du bâtiment.As a function of the torque transmitted by the spring 403, the ring 406 exerts on one of the end 471 or 472 a force which results in a centrifugal expansion of the spring 407, this expansion inducing a centrifugal force E for locking the spring 407 relative to to the cup 443, that is to say through it and through the shaft 404 relative to the support 442 and the masonry M of the building.

Lorsqu'il convient de régler la tension du ressort 403, il suffit de faire tourner avec la manivelle 491 l'arbre 408 dont la saillie 481 exerce sur l'une des extrémités 471 ou 472 un effort tel que le ressort se comprime, au point qu'il est possible de faire tourner les éléments 406 à 408 à l'intérieur de la coupelle 443.When it is necessary to adjust the tension of the spring 403, it is sufficient to rotate with the crank 491 the shaft 408 whose projection 481 exerts on one of the ends 471 or 472 a force such that the spring compresses, to the point it is possible to rotate the elements 406 to 408 inside the cup 443.

Dans le sixième mode de réalisation de l'invention représenté aux figures 11 et 12, les éléments analogues à ceux du premier mode de réalisation portent des références identiques augmentées de 500. Dans ce mode de réalisation, le tablier T d'une installation de fermeture peut être sélectivement enroulé autour d'un axe horizontal X-X' sur lequel est centré un tube creux 545 d'enroulement d'un tablier T.In the sixth embodiment of the invention shown in Figures 11 and 12 elements similar to those of the first embodiment have identical references increased by 500. In this embodiment, the apron T of a closure installation can be selectively wound around a horizontal axis XX 'on which is centered a hollow tube 545 for winding an apron T.

Comme précédemment une console 541 est fixée par rapport à la maçonnerie M d'un bâtiment, cette console supportant un boîtier 504 renfermant les mêmes éléments que le boîtier 304 du quatrième mode de réalisation. Un arbre de sortie 544 du boîtier 504 est solidaire d'un disque 523 d'entraînement en rotation du tube 545. Une bague 505 est fixée en rotation autour de l'extrémité du boîtier 504 la plus éloignée de la console 541, alors qu'une seconde bague 506 est montée autour de l'extrémité de ce boîtier la plus proche de la console avec possibilité de rotation.As previously a console 541 is fixed relative to the masonry M of a building, this bracket supporting a housing 504 containing the same elements as the housing 304 of the fourth embodiment. An output shaft 544 of the casing 504 is integral with a disk 523 for rotating the tube 545. A ring 505 is rotatably fixed around the end of the casing 504 farthest from the bracket 541, whereas a second ring 506 is mounted around the end of this housing closest to the console with the possibility of rotation.

Un ressort de compensation 503 est bandé entre les bagues 505 et 506, alors qu'une troisième bague 508 est montée, avec possibilité de rotation, autour du boîtier 504, à proximité de la bague 506. La bague 508 est pourvue d'une saillie 581 apte à être engagée dans une encoche 564 formée par la bague 506. Une bague 504' solidaire du tube 545 est également montée, avec possibilité de rotation et à proximité de la bague 506, autour du boîtier 504, cette bague 504' formant un manchon 547 qui entoure au moins partiellement les bagues 508 et 506, ainsi qu'un ressort de frein 507 dont les extrémités 571 et 572 sont engagées dans l'encoche 564, de part et d'autre de l'extrémité 581. Le fonctionnement est analogue à celui envisagé précédemment, la bague 508, accessible à travers une ou plusieurs ouvertures 545a ménagée dans la bague 504', étant pourvue de reliefs périphériques 583 tels que des rainures permettant de commander l'intensité de l'effort de blocage E centrifuge exercé par le ressort 507 sur la bague 504' solidaire du tube 545.A compensation spring 503 is banded between the rings 505 and 506, while a third ring 508 is rotatably mounted around the housing 504 near the ring 506. The ring 508 is provided with a projection 581 adapted to be engaged in a notch 564 formed by the ring 506. A ring 504 'integral with the tube 545 is also mounted, with possibility of rotation and near the ring 506, around the housing 504, this ring 504' forming a sleeve 547 which at least partially surrounds the rings 508 and 506, and a spring of brake 507 whose ends 571 and 572 are engaged in the notch 564, on either side of the end 581. The operation is similar to that previously envisaged, the ring 508, accessible through one or more openings 545 a formed in the ring 504 ', being provided with peripheral reliefs 583 such as grooves for controlling the intensity of the centrifugal clamping force E exerted by the spring 507 on the ring 504' integral with the tube 545.

Il est a noter que ce mode de réalisation diffère des précédents dans la mesure où l'accouplement unidirectionnel, qui comprend un ressort frein, est intégré entre le ressort de compensation 503 et le tablier T et non pas entre ce ressort et la maçonnerie M, comme dans les cas précédents.It should be noted that this embodiment differs from the previous ones insofar as the unidirectional coupling, which comprises a brake spring, is integrated between the compensation spring 503 and the apron T and not between this spring and the masonry M, as in the previous cases.

Le septième mode de réalisation de l'invention représenté aux figures 13 et 14 concerne une application de l'invention dans le cas où une boîte à ressort 633 est utilisée pour contenir un ressort de compensation 603 du poids d'un tablier T destiné à être enroulé autour d'un axe horizontal X-X' formant également axe de symétrie d'un tube 604 supporté par une console 641 immobilisée par rapport à la maçonnerie M d'un bâtiment. Une extrémité 631 du ressort 603 est solidaire du boîtier 633a de la boîte 633 qui tourne autour de l'axe X-X' lors de l'enroulement ou du dévidage du tablier T. Par ailleurs, la seconde extrémité 632 du ressort 603 est solidaire d'une bague 606 montée à pivotement autour de l'arbre 604 et qui se prolonge par un manchon 663 entourant également l'arbre 604 et à l'intérieur duquel est disposé un ressort-frein 607 dont les extrémités recourbées 671 et 672 s'étendent dans une encoche 664 ménagée dans le manchon 663. Une bague 608 pourvue d'une saillie 681 engagée dans l'encoche 664 permet, comme précédemment, de commander l'intensité d'un effort centripète E dirigé vers l'axe X-X' et exercé par le ressort-frein 607.The seventh embodiment of the invention shown in Figures 13 and 14 relates to an application of the invention in the case where a spring box 633 is used to contain a compensation spring 603 of the weight of an apron T intended to be wound around a horizontal axis XX 'also forming axis of symmetry d a tube 604 supported by a console 641 immobilized relative to the masonry M of a building. One end 631 of spring 603 is fixed to the housing 633 a of the box 633 which rotates about the axis XX 'during winding or unwinding of the apron T. Furthermore, the second end 632 of spring 603 is secured to a ring 606 pivotally mounted about the shaft 604 and extended by a sleeve 663 also surrounding the shaft 604 and within which is disposed a brake spring 607 whose curved ends 671 and 672 extend in a notch 664 formed in the sleeve 663. A ring 608 provided with a projection 681 engaged in the notch 664 makes it possible, as before, to control the intensity of a centripetal force E directed towards the axis XX 'and exerted by the brake spring 607.

Les caractéristiques des différents modes de réalisation décrits peuvent être combinées entre elles sans sortir du cadre de la présente invention telle que revendiquée dans les revendications attachées.The characteristics of the various embodiments described can be combined with each other without departing from the scope of the present invention as claimed in the attached claims.

Claims (15)

  1. Handling mechanism for a closing or sun protection installation, this mechanism being mounted in or on a fixed structure and comprising a screen for closing an opening made in this structure and at least one spring for compensating the weight of this screen, this spring being connected to this structure at one of its ends and to this screen at its other end by kinematics in the normal operation of the installation, characterised in that it comprises a unidirectional coupling device including a brake spring (7; 107; 207; 307; 407; 507; 607) arranged between this compensation spring (3; 103; 203; 303; 403; 503; 603) and this fixed structure (M) or between this compensation spring and this screen (T), means (6; 106; 207; 306; 406; 506; 606), which are integral with this compensation spring, being fitted to exert a centripetal force or centrifugal locking force (E) of this brake spring on this brake spring in relation to this fixed structure or this screen.
  2. Mechanism according to claim 1, characterised in that these first means comprise a ring (6; 106; 206; 306; 406; 506; 606) arranged so that it can rotate around or partly inside an element (4; 104; 204; 304; 404; 504; 604) with a circular section.
  3. Mechanism according to claim 2, characterised in that this ring (6; 106; 206; 306; 406; 506; 606) is provided with a housing (64) for taking two curved ends (71, 72; 171, 172; 371, 372; 471; 472; 571; 572; 671; 672)), of this brake spring (7; 107; 207; 307; 407; 507; 607).
  4. Mechanism according to claim 3, characterised in that this housing (64) is provided with two surface (641, 642), which are suitable for exerting a force (F1) on these ends (71, 72) to bring them closer together.
  5. Mechanism according to one of the previous claims, characterised in that it comprises means (8; 108; 208; 308; 408; 508; 608) to adjust the strength of this locking force (E).
  6. Mechanism according to claim 5, characterised in that the means of adjustment comprise a ring (8; 108; 208; 308; 508; 608) mounted so that it can rotate around an element (4; 104; 204; 304; 504; 604) with a circular section provided with a projection (81; 181; 381; 581; 681), which is suitable for being inserted between the curved ends (71; 72; 171, 172; 371, 372; 571; 572; 671; 672) of this brake spring (7; 107; 207; 307; 507; 607).
  7. Mechanism according to claim 6, characterised in that this ring (8; 108; 208; 308; 508; 608) is provided with catches or notches (83; 283; 383; 583) for interacting with a tool (9; 209) to control the angular position of this ring around this element (4; 104; 204; 304; 504; 604).
  8. Mechanism according to claim 5, characterised in that these means of adjustment comprise a shaft (408) provided with a radial projection (481), which is suitable for being put between the curved ends (471, 472) of this brake spring (407).
  9. Mechanism according to one of claims 2 or 6, characterised in that this element with a circular section is a fixed central shaft (4; 104; 204; 604) extending more or less over the width of the opening (O) to be closed by this screen (T).
  10. Mechanism according to one of claims 2 or 6, characterised in that this circular element is a box (304; 504) of a device (343) for driving in rotation a device (345; 545) for rolling up this closing screen (T) or an associated element for transmitting force (1).
  11. Mechanism according to one of claims 2, 6, 9 or 10, characterised in that this locking force (E) is centripetal and exerted on this element (4; 104; 204; 304; 504; 604) with a circular section.
  12. Mechanism according to claim 2, characterised in that this element with a circular section (404) surrounds this brake spring (407) and a part of this ring (406), this locking force (E) being centrifugal and exerted on this element with a circular section.
  13. Mechanism according to claims 2 and 5, characterised in that this brake spring (207; 307; 407; 507), this ring (206; 306; 406; 506), this element with a circular section (204; 304; 404; 504) and these means of control (208; 308; 408; 508) are housed at least partly housed inside a shaft (245; 345; 445; 545) for rolling up this closing screen (T) or an associated element for transmitting force (1).
  14. Mechanism according to claim 13, characterised in that this shaft (245; 345; 445; 545) is provided with at least one opening (245a; 345a; 545a) for access to these means of control, particularly by an appropriate tool (209).
  15. Closing or sun protection installation, characterised in that it comprises a mechanism (1-92; 102-181; 202-293; 302-383; 403-492; 503-583; 603-681) according to one of the previous claims.
EP03740534A 2002-03-28 2003-03-27 Mechanism for tensioning a compensation spring for a closing or sun protection installation Expired - Lifetime EP1488069B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0203944A FR2837864B1 (en) 2002-03-28 2002-03-28 VOLTAGE MECHANISM OF A COMPENSATION SPRING FOR A CLOSURE OR SUN PROTECTION INSTALLATION
FR0203944 2002-03-28
PCT/FR2003/000973 WO2003083243A2 (en) 2002-03-28 2003-03-27 Mechanism for tensioning a compensation spring for a closing or sun protection installation

Publications (2)

Publication Number Publication Date
EP1488069A2 EP1488069A2 (en) 2004-12-22
EP1488069B1 true EP1488069B1 (en) 2008-08-13

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EP03740534A Expired - Lifetime EP1488069B1 (en) 2002-03-28 2003-03-27 Mechanism for tensioning a compensation spring for a closing or sun protection installation

Country Status (10)

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US (1) US7325584B2 (en)
EP (1) EP1488069B1 (en)
JP (1) JP4558330B2 (en)
CN (1) CN100414069C (en)
AT (1) ATE404772T1 (en)
AU (1) AU2003258835B2 (en)
DE (1) DE60322854D1 (en)
ES (1) ES2311714T3 (en)
FR (1) FR2837864B1 (en)
WO (1) WO2003083243A2 (en)

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Also Published As

Publication number Publication date
AU2003258835B2 (en) 2008-10-02
FR2837864B1 (en) 2004-06-11
DE60322854D1 (en) 2008-09-25
JP4558330B2 (en) 2010-10-06
US7325584B2 (en) 2008-02-05
WO2003083243A9 (en) 2004-01-15
CN1643230A (en) 2005-07-20
CN100414069C (en) 2008-08-27
US20050150615A1 (en) 2005-07-14
AU2003258835A1 (en) 2003-10-13
EP1488069A2 (en) 2004-12-22
ES2311714T3 (en) 2009-02-16
FR2837864A1 (en) 2003-10-03
WO2003083243A2 (en) 2003-10-09
ATE404772T1 (en) 2008-08-15
JP2005521815A (en) 2005-07-21
WO2003083243A3 (en) 2003-12-04

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