FR2626039A1 - Winch with end stop mechanism for manual operation of blinds and other closures which can be rolled up - Google Patents

Winch with end stop mechanism for manual operation of blinds and other closures which can be rolled up Download PDF

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Publication number
FR2626039A1
FR2626039A1 FR8800746A FR8800746A FR2626039A1 FR 2626039 A1 FR2626039 A1 FR 2626039A1 FR 8800746 A FR8800746 A FR 8800746A FR 8800746 A FR8800746 A FR 8800746A FR 2626039 A1 FR2626039 A1 FR 2626039A1
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FR
France
Prior art keywords
winch
toothed wheel
shaft
eccentric
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8800746A
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French (fr)
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FR2626039B1 (en
Inventor
Jean-Pierre Barbe
Rene Bresson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Simu SAS
Original Assignee
Simu SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Simu SAS filed Critical Simu SAS
Priority to FR8800746A priority Critical patent/FR2626039B1/en
Publication of FR2626039A1 publication Critical patent/FR2626039A1/en
Application granted granted Critical
Publication of FR2626039B1 publication Critical patent/FR2626039B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • 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
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809—Control
    • E06B2009/6872—Control using counters to determine shutter position
    • E06B2009/6881—Mechanical counters

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

In the fixed crown 1b a toothed wheel 6 is mounted on an eccentric race 5c on the shaft 4 which carries the hollow wheel 4 driven by the endless screw 2, and turns epicycloidally, so that at a given moment the stub 6a on the said wheel 6 comes against a fixed stop 1c in the casing 1, thus limiting operation.

Description

La présente invention a trait aux treuils destinés à assurer La manoeuvre manuelle des stores et autres dispositifs de fermeture à en-roulement. The present invention relates to winches intended to ensure manual operation of blinds and other rolling closure devices.

On sait que dans Les treuils du genre en question, il est nécessaire d'incorporer un mécanisme de fin de course agencé de manière à interdire La poursuite de La manoeuvre Lorsque le tabLier ou autre organe d'obscurcissement du dispositif de fermeture a atteint sa position basse, ceci en vue d'éviter que Ledit tabLier ne s'enroule en sens inverse. We know that in winches of the kind in question, it is necessary to incorporate a limit switch mechanism arranged so as to prevent the continuation of the maneuver when the table or other obscuring member of the closing device has reached its position. low, this in order to prevent said tabLier from rolling up in the opposite direction.

Un tel mécanisme comprend généralement, fixé sur La roue creuse qui coopère avec la vis sans fin liée à La manivelle de manoeuvre, un ergot latéral agencé de manière à coopérer avec une roue indépendante en forme de Croix de Malte, laquelle roue est entraînez à chaque tour de la roue creuse#jusqu'à ce que l'ergot vienne en butée contre un bossage prévu aux Lieu et pLace de L'une des dents du profil en Croix de Malte.Such a mechanism generally comprises, fixed on the hollow wheel which cooperates with the worm screw linked to the operating crank, a lateral lug arranged so as to cooperate with an independent wheel in the shape of a Maltese cross, which wheel is driven at each turn the hollow wheel # until the lug comes into abutment against a boss provided in the Place and place of one of the teeth of the Maltese Cross profile.

Cet agencement est simple sur le plan de la construction, mais iL convient d'observer que dans un tel système, la roue en forme de Croix de Malte est en principe libre de se déplacer anguLairement entre deux actionnements successifs par L'ergot de la roue creuse, alors que toute rotation intempestive engendre un décalage qui provoque le blocage du treuil. Aussi a-t-on été amené à associer à La roue en forme de Croix de
Malte un-dispositif de positionnement ou de repérage, notamment du type comportant une bilLe élastiquement appLiquée contre L'une des faces de
La roue précitée afin de coopérer avec des dépressions ou empreintes ménagées dans Ladite face.This arrangement is simple from the construction point of view, but it should be observed that in such a system, the wheel in the shape of a Maltese cross is in principle free to move angularly between two successive actuations by the lug of the wheel. hollow, while any untimely rotation generates an offset which causes the winch to lock up. So we were brought to associate with The wheel in the shape of a Cross of
Malta a positioning or locating device, in particular of the type comprising a sheet which is elastically applied against one of the faces of
The aforementioned wheel in order to cooperate with depressions or imprints formed in said face.

On conçoit que ce dispositif de positionnement élastique complique
La construction du treuil et provoque, Lors de la manoeuvre du treuiL par l'utilisateur, un bruit caractéristique de cLiquetis, fort désagréable en pratique.We can see that this elastic positioning device complicates
The construction of the winch and causes, When the winch is operated by the user, a characteristic rattling noise, very unpleasant in practice.

C'est à ces inconvénients que La présente invention entend principalement remédier, et ce à L'aide d'un mécanisme de fin de course qui tout en étant de construction particuLièrement simpLe, ne comporte aucun risque de glissement intempestif et est parfaitement silencieux. It is to these drawbacks that the present invention mainly intends to remedy, and this using a limit switch mechanism which, while being of particularly simple construction, does not involve any risk of inadvertent sliding and is perfectly silent.

L'invention consiste essentiellement à faire comporter au carter du treuil une couronne dentée fixe à L'intérieur de laquelle se déplace epicyclordalement, sousL'effet d'un excentrique Lié à l'un des organes mobiles du treuil, une roue dentée à plus petit diamètre pourvue d'un ergot Latéral propre, moyennant rotation de ladite roue dentée, à venir porter contre une butée fixe solidaire du carter précité. The invention essentially consists in making the winch casing have a fixed toothed crown Inside which moves epicyclically, under the effect of an eccentric Linked to one of the mobile parts of the winch, a gear with smaller diameter provided with a clean lateral lug, by means of rotation of said toothed wheel, to come to bear against a fixed stop secured to the aforementioned casing.

Conformément à un mode de mise en oeuvre préféré de La disposition précitée, particulièrement avantageux sur Le plan de la simplicité de La construction, L'excentrique est constitué par une portée excentrée prévue sur L'arbre qui porte la roue creuse coopérant avec la vis sans fin d'entrainement du treuil. In accordance with a preferred embodiment of the above-mentioned arrangement, which is particularly advantageous in terms of the simplicity of the construction, the eccentric consists of an eccentric bearing provided on the shaft which carries the hollow wheel cooperating with the screw. end of winch training.

Le dessin annexé, donné à titre d'exempLe, permettra de mieux comprendre L'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :
Fig. 1 est une vue en élévation de L'intérieur d'un treuil suivant L'invention, tel qu'il apparait après démontage de L'une des deux coquilles qui composent le carter dudit treuil.The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
Fig. 1 is an elevational view of the interior of a winch according to the invention, as it appears after disassembly of one of the two shells that make up the casing of said winch.

Fig. 2 est une vue en perspective montrant, à L'état séparé,
Les différentes pièces du treuil et du mécanisme de fin de course qui lui est incorporé.Fig. 2 is a perspective view showing, in the separate state,
The different parts of the winch and the limit switch mechanism incorporated in it.

Fig. 3 est une vue en élévation à plus grande échelle iLLustrant le fonctionnement de l'ensembLe. Fig. 3 is an elevational view on a larger scale illustrating the operation of the assembly.

Le boitier ou carter du treuil représenté en fig. 1 et 2 est formé par l'assemblage de deux coquilles identiques 1, dont une seuLe a été représentée au dessin. Chacune de ces deux coquilles 1 comporte une dépression la orientée suivant une corde de Leur profil circulaire, de façon à ce qu'une fois Lesdites coquilles 1 assemblées, Les dépressions la définissent un logement cylindrique à l'intérieur duquel est montée à rotation une vis sans fin 2 dont le moyeu, prévu creux, est établi à un profil carré afin de recevoir L'extrémité d'une manivelle amovible d'actionnement telle que 3. The winch housing or casing shown in fig. 1 and 2 is formed by the assembly of two identical shells 1, only one of which has been shown in the drawing. Each of these two shells 1 has a depression oriented along a cord of their circular profile, so that once said shells 1 assembled, the depressions define a cylindrical housing inside which is mounted to rotate a screw endless 2 whose hub, provided hollow, is established to a square profile in order to receive the end of a removable actuating crank such as 3.

La vis sans fin 2 engrène avec une roue à denture creuse 4 découpée en son centre d'une ouverture 4a à profil hexagonal, propre à acceuillir un épanouissement Sa à profil hexagonaL correspondant prévu sur un arbre 5. Celui-ci comporte un perçage axial débouchant 5b, établi à une section carrée en vue de former logement pour l'embout à profil correspondant du tambour tournant prevu pour l'enroulement du tablier du dispositif de store ou autre. The worm 2 meshes with a hollow toothed wheel 4 cut in its center with an opening 4a with a hexagonal profile, suitable for accommodating a development Sa with a corresponding hexagonaL profile provided on a shaft 5. This comprises an axial through hole 5b, established in a square section with a view to forming housing for the end piece with corresponding profile of the rotating drum provided for winding the apron of the blind or other device.

Il convient d'observer que L'arbre 5 comporte une portée cylindrique 5c, excentrée par rapport à son axe. Sur cette portée 5c est engagée
L'ouverture axiale a profil circulaire d'une roue dentée 6, propre à venir se loger à L'intérieur d'une couronne dentée lb ménagée dans L'une des deux coquilles 1 du carter. On notera par ailleurs que la denture de la roue 6 est interrompue pour laisser place à un ergot 6a, replié lon- gitudinalement de façon à coopérer avec une butée 1c prévue radialement à l'intérieur de la couronne dentée lb. It should be observed that the shaft 5 has a cylindrical bearing 5c, eccentric with respect to its axis. On this litter 5c is engaged
The axial opening has a circular profile of a toothed wheel 6, suitable for being housed inside a toothed ring 1b formed in one of the two shells 1 of the casing. It will also be noted that the toothing of the wheel 6 is interrupted to make room for a lug 6a, folded longitudinally so as to cooperate with a stop 1c provided radially inside the toothed crown lb.

Les dents de la roue 6 et la couronne lb sont profilées pour coopérer les unes avec les autres, ladite roue 6, par suite de son nombre inférieur de dents, disposant d'un jeu sensible à L'intérieur de la couronne sus-mentionnée, comme illustré en fig. 3 ou L'on a représenté en 7
L'embout carré du tambour introduit dans le perçage 5b.On conçoit dans ces conditions que lorsque L'arbre 5 est entrainé en rotation par la roue creuse 4 sous l'effet de la manoeuvre de la vis sans fin 2, le déplacement angulaire de l'excentrique 5c impartit à la roue dentée 6 qui est engagée sur ledit excentrique un mouvement epicycloidal à l'inte- rieur de la couronne dentée lb. Etant donné que cette derniére est fixe, ce mouvement epicycLoidal engendre une rotation partielle de la roue dentée 6 sur elle-même, si bien qu'après un certain nombre de tours de la roue creuse 4, L'ergot 6a vient porter contre la butée fixe 1c du carter, en limitant ainsi La manoeuvre du treuil, de la même manière que dans les mécanismes de fin de course classiques.The teeth of the wheel 6 and the crown 1b are profiled to cooperate with each other, said wheel 6, owing to its lower number of teeth, having a significant clearance inside the aforementioned crown, as illustrated in fig. 3 or We represented in 7
The square end of the drum introduced into the bore 5b. It is therefore conceivable that when the shaft 5 is rotated by the hollow wheel 4 under the effect of the operation of the worm 2, the angular displacement of the eccentric 5c impart to the toothed wheel 6 which is engaged on said eccentric an epicyclic movement inside the toothed crown lb. Since the latter is fixed, this epicycLoidal movement generates a partial rotation of the toothed wheel 6 on itself, so that after a certain number of turns of the hollow wheel 4, the lug 6a comes to bear against the stop fixes 1c of the casing, thus limiting the operation of the winch, in the same way as in conventional end-of-travel mechanisms.

La construction est toutefois plus simple et plus robuste ; elle est parfaitement fiable et peu coûteuse. Le fonctionnement est totalement silencieux. The construction is however simpler and more robust; it is perfectly reliable and inexpensive. Operation is completely silent.

Il doit d'ailleurs être entendu que La description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'inventioh dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents.  It should moreover be understood that the above description has been given only by way of example and that it in no way limits the field of the invention from which one would not leave by replacing the details of execution described. by all other equivalents.

Claims (3)

REVENDICATIONS 1. Treuil pour la manoeuvre manuelle des stores et autres fermetures à enroulemement, du genre incorporant un mécanisme de fin de course apte à interdire l'actionnement de l'appareil Lorsque le tablier ou autre organe d'obscurcissement a atteint sa position basse, caractérisé en ce que son carter (1) comporte une couronne dentée fixe (lob) à l'inté- rieur de laquelle se déplace épicycloidalement, sous l'effet d'un. excentrique (5c) lié à l'un des organes mobiles d'entraînement (2, 4), une roue dentée (6) à plus petit diamètre pourvue d'un ergot Latéral (6a) propre, rtyennant rotation de ladite roue dentée, à venir pcrter contre une butée fixe (1c) solidaire du carter précité. 1. Winch for the manual operation of blinds and other roll-up closures, of the type incorporating an end-of-travel mechanism capable of preventing actuation of the device When the apron or other obscuring member has reached its low position, characterized in that its casing (1) comprises a fixed toothed crown (lob) inside which moves epicycloidally, under the effect of a. eccentric (5c) linked to one of the mobile drive members (2, 4), a toothed wheel (6) with a smaller diameter provided with a clean lateral pin (6a), rotating the said toothed wheel, come to fit against a fixed stop (1c) integral with the aforementioned casing. 2. Treuil suivant la revendication 1, caractérisé en ce que l'excentrique est constitué par une portée excentrée (5c) prévue sur L'arbre (5) qui porte la roue à denture creuse (4) coopérant avec la vis sans fin (2) d'entrainement du treuil. 2. Winch according to claim 1, characterized in that the eccentric is constituted by an eccentric bearing (5c) provided on the shaft (5) which carries the hollow gear (4) cooperating with the worm (2 ) winch drive. 3. Treuil suivant la revendication 2, caractérisé en ce que L'arbre (5) qui porte la roue à denture creuse (4) est pourvu d'un épanouissement (5a) à profil polygonal engagé dans une ouverture (4a) à profil correspondant ménagée dans la roue à denture creuse (4), lequel arbre est en outre percé d'un logement axial (5b) à section polygonale apte à accueillir l'embout (7) du tambour destiné à L'enroulement du tablier ou autre organe d'obscurcissement ds store ou fermeture.  3. Winch according to claim 2, characterized in that The shaft (5) which carries the hollow toothed wheel (4) is provided with an opening (5a) with polygonal profile engaged in an opening (4a) with corresponding profile formed in the hollow toothed wheel (4), which shaft is further pierced with an axial housing (5b) of polygonal section capable of receiving the end piece (7) of the drum intended for winding the apron or other member of the '' obscuration ds store or closure.
FR8800746A 1988-01-18 1988-01-18 WINCH WITH END-OF-STROKE MECHANISM FOR MANUAL MANEUVERING OF BLINDS AND OTHER WINDING CLOSURES Expired - Lifetime FR2626039B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8800746A FR2626039B1 (en) 1988-01-18 1988-01-18 WINCH WITH END-OF-STROKE MECHANISM FOR MANUAL MANEUVERING OF BLINDS AND OTHER WINDING CLOSURES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8800746A FR2626039B1 (en) 1988-01-18 1988-01-18 WINCH WITH END-OF-STROKE MECHANISM FOR MANUAL MANEUVERING OF BLINDS AND OTHER WINDING CLOSURES

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FR2626039A1 true FR2626039A1 (en) 1989-07-21
FR2626039B1 FR2626039B1 (en) 1991-04-19

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FR8800746A Expired - Lifetime FR2626039B1 (en) 1988-01-18 1988-01-18 WINCH WITH END-OF-STROKE MECHANISM FOR MANUAL MANEUVERING OF BLINDS AND OTHER WINDING CLOSURES

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2722183A1 (en) * 1994-07-11 1996-01-12 Zurfluh Feller Sa RELEASABLE CORD WINCH

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1479577A (en) * 1966-04-01 1967-05-05 Mewalux Ag Mechanism with a limited number of turns, particularly applicable to roller blinds
FR2141534A1 (en) * 1971-06-04 1973-01-26 Riou Jean
DE2362112A1 (en) * 1973-12-14 1975-06-26 Germann Helmut End switch of sun blind motor - has cog wheel on drive shaft forming operating lever by interaction with toothed rim

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1479577A (en) * 1966-04-01 1967-05-05 Mewalux Ag Mechanism with a limited number of turns, particularly applicable to roller blinds
FR2141534A1 (en) * 1971-06-04 1973-01-26 Riou Jean
DE2362112A1 (en) * 1973-12-14 1975-06-26 Germann Helmut End switch of sun blind motor - has cog wheel on drive shaft forming operating lever by interaction with toothed rim

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2722183A1 (en) * 1994-07-11 1996-01-12 Zurfluh Feller Sa RELEASABLE CORD WINCH
EP0692605A1 (en) * 1994-07-11 1996-01-17 Zurfluh Feller S.A. Disengageable cord winch

Also Published As

Publication number Publication date
FR2626039B1 (en) 1991-04-19

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