EP0889193B1 - Treuil à cordon comportant un organe d'embrayage/débrayage, destiné à manoeuvrer l'arbre porte tablier d'un volet roulant - Google Patents
Treuil à cordon comportant un organe d'embrayage/débrayage, destiné à manoeuvrer l'arbre porte tablier d'un volet roulant Download PDFInfo
- Publication number
- EP0889193B1 EP0889193B1 EP19980401644 EP98401644A EP0889193B1 EP 0889193 B1 EP0889193 B1 EP 0889193B1 EP 19980401644 EP19980401644 EP 19980401644 EP 98401644 A EP98401644 A EP 98401644A EP 0889193 B1 EP0889193 B1 EP 0889193B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cord
- housing
- winch according
- pulley
- ring
- 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.)
- Expired - Lifetime
Links
Images
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
- E06B9/78—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
-
- 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
- E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions
- E06B2009/905—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions using wrap spring clutches
Definitions
- the present invention relates to a device allowing the operation of the apron door shaft of a roller shutter. It relates more particularly to a system cord winch fitted with a brake on the shaft door apron, a declutching or clutching means active when there is too much torque on the control unit, a limit switch system which acts on the winch when the apron is in position low.
- cord winch systems having a coupling system between the driving part (winch) and the receiving part (support shaft of the apron of the roller shutter) with ratchets.
- the wheel system free installed between the winch and the shaft allows to drive the tree in the upward direction, but not downhill. It's the weight of the apron which forces the tree to rotate in the direction of descent.
- the operator operates a cord, in the direction of lowering, to release a spring positioned in a Bell.
- the descent of the flap is only braked by the presence of a brake, placed in a position very removal of the winch part, which increases considerably the overall size of the assembly.
- these devices do not include a limit switch, which thanks to mechanical stops, allows limit the lower stroke of the apron.
- a limit switch which thanks to mechanical stops, allows limit the lower stroke of the apron.
- this is caused by the absence of a freewheel on the tree, which allows the low point to apply a torque in the direction of descent on the tree and so to push on the apron behind the scenes, thanks to the automatic locking system.
- cord winches equipped both a clutch and a clutch system, a limit switch and braking system integrated.
- these winches have the major drawback of have a brake system whose intensity and endurance are very limited in time considering mainly that braking is provided by a single spring.
- the clutch / declutching function has the disadvantage to use a mobile pulley system in rotation on a conical bearing, the sliding being caused by a stressing of elastic parts, the reproducibility of the setting is not constant in the time.
- the present invention therefore aims to overcome these disadvantages in proposing a cord winch with a declutching mechanism active in both directions of rotation, which combines both a limit switch system and braking very integrated in the winch mechanism, for a better compactness of the whole.
- the cord winch comprising a housing receiving a reducing organ between the winch part and the integral with the shaft of the roller shutter deck, the gear train forming the reducing member being fitted with a limit switch system, the housing comprising a pulley actuated in rotation by a cord, and integral with the reducer by a input shaft coaxial with said pulley, characterized by said shaft of entry being surrounded by a lining conforming with the latter a clutch / declutch system, the assembly being trapped inside said pulley, this last and the reducer cooperating with the part secured to the apron shaft, via a anti-reverse braking system comprising at least two elastically deformable springs, mounted in tandem.
- the cord winch according to the invention essentially comprises a casing 1 forming the housing proper of the latter.
- This one comprises two concentric cavities 2, 3; the first 3 has sufficient internal diameter and depth to allow the passage of a movable part 4, forming pulley, around which the cord 5 circulates, reducer 6 and of the clutch and disengage system 7, the other cavity 2 receives the system of braking 8 and protrudes from the first 2 and has a substantially cylindrical shape so that cooperate with the winding tube 9 of the shutter curtain rolling.
- the ring 15 includes a plurality of recesses 23, noticeably oblong, judiciously spaced on its slice, and which under the effect of a certain torque threshold elastically deforms.
- the ring 15 has a coaxial orifice 24 relative to the orifices 19 of the input half-wheels 10, 14 and whose side walls have a profile rapcyclo ⁇ dique.
- the other component of the release / clutch member is an input shaft 25.
- This input shaft 25 has on one of its front faces 26 of a connection means produced in particular in the form of a fluted part or tooth which cooperates on a planetary level 27 belonging to an epicyclic train forming the reducer 6, the other end face 28 has a shoulder 29 whose dimensions correspond to the diameter of the central hole 19 of one of the input half-wheels 10 or 14.
- the outer wall 30 of the input shaft 25 is provided a succession of bosses 31 whose profile is similar to those practiced in the center of the ring elastomer 15, its profiles cooperating with each other so as to ensure the transmission of the torque whatever its meaning.
- the operation of the clutch / disengage member is the following :
- the cavities 23 present in the thickness of the ring 15 elastomer retain their geometry and do not not distort.
- the ring 15 does not shear between its side wall 21 which is fixed in the recess 16 used in the two input half-wheels 10 and 14 and its internal side wall which cooperates at the level of the shaft input 25.
- the rotational movement imparted by the cord 5 is transmitted to the input shaft 25 then, by through the reducer 6, to the winding tube 9 of the roller shutter deck.
- the cavities 23 deform under the action of the couple and induce a shear between the lateral face 21 of the ring 15 which is fixed and that 30 which is located the interface with the input shaft 25.
- the profile epicyclic of these faces in contact under the presence of these shear forces, causes sliding relative in rotation between the input shaft 25 and the ring 15 in elastomer.
- the movement printed on the winch is therefore, during the entire phase of sliding between the elastomer ring and input shaft, removed up to what the respective side faces cooperate with new as soon as the intensity torque is removed abnormal.
- Pulley 4 formed by the assembly of two half-wheels Input 10-14 trapping input shaft 25 and the elastomer ring 15, is positioned inside the large housing cavity having taken take care to couple the sun gear 27 input shaft 25 and satellites 32, 33, 34, number three and at 120 °, which are held in position via a planet carrier 35 which is connected in turn through a brake system 8, which will described below, at the winding axis 9 of the drum of the roller shutter deck.
- the casing 1 has two notches 36, 37 placed right through a median axis, allowing the passage of the winch cord 5.
- the main cavity 2 of the casing 1 has at the bottom and on its side wall internal, of a crown 38 with straight teeth on which meshes satellites 32, 33, 34.
- this brake 8 of irreversibility consists of a device 39 elastically deformable depending on the type of stresses, generally torsion, applied to either end.
- the braking torque is proportional the diameter and to increase the braking intensity, while ensuring the longevity of the brake system 8, at least two spiral springs are used, mounted in tandem, whose direction of the helix of these springs is such that if the terminal strands become integral with the training dogs, cooperating respectively at the level of the end of the shaft linked to the winding axis 9 of the roller shutter curtain and at the planet carrier 35, thanks to an entry knocker, meanwhile connected to the half-wheels input, so that the number of turns of these springs tend to increase, this will tend to make decrease the outside diameter of these springs.
- the planetary reduction gearbox includes an end of stroke in the lower position of the bulkhead.
- we develops an epicyclic train whose gears forming satellites 32, 33, 34 and planetary 27 have a number of prime teeth between them. If we consider a tooth on each gear with this property, the kinematics of these gears determines a single point of crossing for the two teeth considered, this crossing repeating according to a period of n turns (n integer). he therefore suffices to determine by an adequate choice of number of teeth of the various gears belonging to the train epicyclic, a reduction coefficient between the tree linked to the winch and the shaft secured to the shutter deck rolling, this coefficient also determining the number rotations of the receiving shaft necessary for movement of the race of said apron.
- the object winch of the invention has a system clutch / disengage, a limit switch system, a brake system and a reduction system.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Mechanical Operated Clutches (AREA)
- Braking Arrangements (AREA)
- General Details Of Gearings (AREA)
Description
- le système de débrayage n'est pas actif dans les deux sens de rotation avec ou non présence d'un couple résistant sur l'arbre, le seuil de déclenchement est variable dans le temps ;
- le système de frein positionné en retrait conduit à un dispositif global encombrant, et l'intensité et l'endurance du freinage ne sont pas constantes ;
- le tablier peut être soulevé par l'intermédiaire d'une intervention extérieure et être ré enroulé à l'envers.
- la figure 1 est une vue en perspective et en éclaté, du treuil à cordon objet de l'invention ;
- la figure 2 est une vue en perspective et en éclaté, à plus grande échelle, selon une extrémité, du treuil à cordon objet de l'invention ;
- la figure 3 est une vue en perspective et en éclaté, à plus grande échelle, selon une autre extrémité, du treuil à cordon objet de l'invention ;
- d'une première demi-roue d'entrée 10 obtenue notamment par une opération de moulage d'une matière plastique et qui présente sur sa face interne 11 dirigée vers l'intérieur du boítier 1, une couronne 12 pourvue d'une pluralité de zones 13 en relief et en creux régulièrement disposées sur sa circonférence de manière à permettre l'accrochage d'un cordon 5 ;
- d'une seconde demi-roue d'entrée 14, similaire à la précédente et qui est positionnée en regard de la première 10, de manière à emprisonner une garniture 15 en élastomère dans un évidement 16 pratiqué au-dessous de la couronne 12. La face latérale dirigée vers l'intérieur de la couronne 12 dispose d'une pluralité de zones 18 en saillie, à intervalles réguliers sur la circonférence, réalisant l'immobilisation en rotation de la garniture 15 au sein de l'évidement 16. En outre, les deux demi-roues 10, 14 comportent chacune un orifice 19 central pour le passage d'un axe 20 lié à l'axe d'enroulement du tablier ;
- d'une garniture 15 en mousse d'élastomère conformée en une bague et réalisant l'un des composants d'un organe de débrayage/embrayage. Cette bague 15 comporte au niveau de sa face latérale 21 en contact de l'évidement 16 pratiqué dans les demi-roues d'entrée 10, 14 des zones 22 conjuguées aux zones en saillie 18 qui participent à son immobilisation radiale.
Claims (9)
- Treuil à cordon, comprenant un boítier recevant un organe réducteur (6) entre la partie treuil et la partie solidaire de l'arbre du tablier du volet roulant, le train d'engrenage formant l'organe réducteur étant pourvu d'un système de fin de course, le boítier (1) comportant une poulie (4) actionnée en rotation par un cordon (5), et solidaire du réducteur (6) par un arbre d'entrée (25) coaxial à ladite poulie (4), caractérisé par ledit arbre d'entrée (25) étant entouré par une garniture (15) conformant avec ce dernier un système d'embrayage/débrayage, l'ensemble étant emprisonné à l'intérieur de ladite poulie (4), cette dernière et le réducteur (6) coopérant avec la partie solidaire de l'arbre du tablier (9), par l'intermédiaire d'un système de freinage anti-retour comportant au moins deux ressorts (39) déformables élastiquement, montés en tandem.
- Treuil à cordon selon la revendication 1, caractérisé en ce que la poulie (4) comporte, d'une part une première demi-roue d'entrée (10) qui présente sur sa face interne (11) dirigée vers l'intérieur du boítier (1), une couronne (12) pourvue d'une pluralité de zones (13) en relief et en creux régulièrement disposées sur sa circonférence de manière à permettre l'accrochage d'un cordon (5), et d'autre part une seconde demi-roue d'entrée (14), similaire à la précédente et qui est positionnée en regard de la première (10), de manière à emprisonner une garniture (15) en élastomère dans un évidement (16) pratiqué au-dessous de la couronne (12).
- Treuil à cordon selon la revendication 2, caractérisé en ce que la face latérale dirigée vers l'intérieur de la couronne (12) dispose d'une pluralité de zones (18) en saillie, à intervalles réguliers sur la circonférence, réalisant l'immobilisation en rotation de la garniture (15) au sein de l'évidement (16).
- Treuil à cordon selon la revendication 2, caractérisé en ce que la garniture (15) est réalisée dans une mousse d'élastomère conformée en une bague, ladite bague (15) comportant au niveau de sa face latérale (21) en contact de l'évidement (16) pratiqué dans les demi-roues d'entrée (10, 14) des zones (22) conjuguées aux zones en saillie (18) qui participent à son immobilisation radiale.
- Treuil à cordon selon la revendication 4, caractérisé en ce que la bague (15) comprend une pluralité d'évidements (23), sensiblement oblongs, judicieusement espacés sur sa tranche, et qui sous l'effet d'un certain seuil de couple se déforme élastiquement.
- Treuil à cordon selon l'une quelconque des revendications 2 à 5, caractérisé en ce que la bague (15) comporte un orifice (24) coaxial par rapport aux orifices (19) des demi-roues d'entrée (10, 14) et dont les parois latérales disposent d'un profil épicycloïdique.
- Treuil à cordon selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi externe (30) de l'arbre d'entrée (25) est pourvue d'une succession de bossages (31) dont le profil est similaire à ceux pratiqués au centre de la bague d'élastomère (15), ses profils coopérant entre eux de manière à assurer la transmission du couple de rotation quel que soit son sens.
- Treuil à cordon selon l'une quelconque des revendications précédentes, caractérisé en ce que le boítier (1) dispose de deux échancrures (36, 37) placées de part en part d'un axe médian, permettant le passage du cordon du treuil (5), le cordon étant guidé par des galets (42) positionnés dans le boítier (1) au niveau des échancrures (36, 37).
- Treuil à cordon selon l'une quelconque des revendications précédentes, caractérisé en ce que les ressorts (39), montés en tandem et formant les organes déformables élastiquement, sont entourés par une cloche (40), cette cloche (40) étant quant à elle solidaire du boítier (1) par des cannelures externes, ou simplement par emboítement.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9708350A FR2765618B1 (fr) | 1997-07-02 | 1997-07-02 | Treuil a cordon comportant un organe d'embrayage/debrayage destine a manoeuvrer l'arbre porte-tablier d'un volet roulant |
FR9708350 | 1997-07-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0889193A1 EP0889193A1 (fr) | 1999-01-07 |
EP0889193B1 true EP0889193B1 (fr) | 2003-05-21 |
Family
ID=9508746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980401644 Expired - Lifetime EP0889193B1 (fr) | 1997-07-02 | 1998-07-01 | Treuil à cordon comportant un organe d'embrayage/débrayage, destiné à manoeuvrer l'arbre porte tablier d'un volet roulant |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0889193B1 (fr) |
DE (2) | DE69814744T2 (fr) |
ES (1) | ES2127174T3 (fr) |
FR (1) | FR2765618B1 (fr) |
PT (1) | PT889193E (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU775035C (en) | 1999-07-14 | 2005-04-07 | Hunter Douglas Industries Bv | Drive mechanism and head rail for a blind |
FR2811013B1 (fr) * | 2000-07-03 | 2003-05-16 | Bubendorff Volet Roulant | Dispositif d'entrainement de type manuel pour volet roulant |
FR2816016B1 (fr) | 2000-10-27 | 2003-02-07 | Zurfluh Feller | Dispositif limiteur de couple |
AU2003220458A1 (en) * | 2002-03-20 | 2003-10-08 | Rollease Inc. | Semi-cordless unbalanced spring driven blind system and methods for adjusting and making same |
EP1854954A3 (fr) * | 2002-03-20 | 2008-03-26 | Rollease, Inc. | Embrayage de store à enroulement automatique doté d'un engrenage interne |
CA2452908C (fr) * | 2002-03-20 | 2008-05-20 | Rollease, Inc. | Embrayage de store a enroulement automatique, dote d'un engrenage interne |
FR2875531B1 (fr) * | 2004-09-21 | 2006-12-08 | Bubendorff Sa | Dispositif d'entrainement pour tablier de volet roulant. |
GB2418449A (en) * | 2004-09-27 | 2006-03-29 | Louver Lite Ltd | Control unit for window blind including intermediate gearing |
US9033841B2 (en) * | 2012-01-24 | 2015-05-19 | Rollease, Inc. | Window treatment operating apparatus with cycloidal drive |
CN105525857B (zh) * | 2016-02-04 | 2017-05-10 | 王海锋 | 窗帘控制器 |
US10407983B2 (en) | 2016-10-26 | 2019-09-10 | Hunter Douglas Inc. | Operating system for an architectural covering |
US10337243B2 (en) * | 2017-04-10 | 2019-07-02 | Mechoshade Systems, Llc | Geared bracket for a window shade |
TWI739711B (zh) * | 2021-01-28 | 2021-09-11 | 型態同步科技股份有限公司 | 升降控制模組及捲簾升降裝置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2620808A1 (de) * | 1976-05-11 | 1977-11-17 | Selve Fa Ernst | Vorrichtung zur betaetigung von rollaeden |
FR2722183B1 (fr) * | 1994-07-11 | 1996-09-13 | Zurfluh Feller Sa | Treuil debrayable a cordon |
-
1997
- 1997-07-02 FR FR9708350A patent/FR2765618B1/fr not_active Expired - Lifetime
-
1998
- 1998-07-01 EP EP19980401644 patent/EP0889193B1/fr not_active Expired - Lifetime
- 1998-07-01 PT PT98401644T patent/PT889193E/pt unknown
- 1998-07-01 DE DE1998614744 patent/DE69814744T2/de not_active Expired - Lifetime
- 1998-07-01 DE DE1998401644 patent/DE889193T1/de active Pending
- 1998-07-01 ES ES98401644T patent/ES2127174T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69814744D1 (de) | 2003-06-26 |
PT889193E (pt) | 2003-10-31 |
FR2765618A1 (fr) | 1999-01-08 |
ES2127174T1 (es) | 1999-04-16 |
DE69814744T2 (de) | 2003-11-20 |
EP0889193A1 (fr) | 1999-01-07 |
DE889193T1 (de) | 1999-06-10 |
FR2765618B1 (fr) | 1999-08-27 |
ES2127174T3 (es) | 2003-12-01 |
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