EP0947661A1 - Einwegarretiereinrichtung für Rolladen - Google Patents

Einwegarretiereinrichtung für Rolladen Download PDF

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Publication number
EP0947661A1
EP0947661A1 EP99440064A EP99440064A EP0947661A1 EP 0947661 A1 EP0947661 A1 EP 0947661A1 EP 99440064 A EP99440064 A EP 99440064A EP 99440064 A EP99440064 A EP 99440064A EP 0947661 A1 EP0947661 A1 EP 0947661A1
Authority
EP
European Patent Office
Prior art keywords
movable plate
winding shaft
brake
locking device
drive
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
EP99440064A
Other languages
English (en)
French (fr)
Other versions
EP0947661B1 (de
Inventor
Gérard Evreux
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.)
Bubendorff Volet Roulant SA
Original Assignee
Bubendorff SA
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 Bubendorff SA filed Critical Bubendorff SA
Publication of EP0947661A1 publication Critical patent/EP0947661A1/de
Application granted granted Critical
Publication of EP0947661B1 publication Critical patent/EP0947661B1/de
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
    • E06B9/78—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
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive

Definitions

  • the invention relates to a unidirectional locking device interposed between a drive mechanism, in particular of the type manual, and a winding shaft of a shutter curtain rolling.
  • the present invention will find particular interest in the field of drive systems for roller shutters.
  • a rolling shutter is defined by an apron coming to wrap around and unwind from a tree winding controlled in rotation by a mechanism appropriate training. So this winding tree, usually placed inside a box is maintained, in rotation, at its ends, through bearings often associated with supporting cheeks.
  • drive mechanism itself, it can be of the type manual or motor.
  • a strap As part of a strap, the latter, if it comes to wrap, at its upper end, around said aforementioned drive pulley, at its lower end, it joins a sort of reel reel equipped with a system strap braking.
  • such a one-way locking device is in the form of a forced helical spring around or in a fixed tube for example made integral, directly or indirectly, from a supporting cheek.
  • this coil spring On both ends of this coil spring is able to act a part of transmission connecting, in a way, the mechanism drive to the roller shutter winding shaft. So, only voluntary action on this drive mechanism, for example, on the pulley which composes it, leads to relax this spring with respect to the fixed tube around which or in which it is forced and, through this, to release the rotation of the aforementioned transmission part, therefore, to authorize the rotation of this winding shaft.
  • a couple exerted, for example, by the weight of the deck on this tree is counteracted by the action of the spring with respect to said tube fixed.
  • a winding device for a curtain or the like comprising a winding shaft on which it is wound and from which unfolds such a curtain under the impulse of a manual control exerted on a drive mechanism of the chain wheel type.
  • a locking device which consists, at said winding shaft, of a wheel plane immobilized inside the latter and equipped with a first set of plates perpendicular to the axis of the tree winding.
  • This flat wheel is mounted, in rotation and in sliding, on a fixed shaft with one end receives, in rotation, said chain wheel while the other end is equipped with elastic return means suitable for lean on said flat wheel.
  • This blocking device also comprises, at said fixed shaft, a second set of plates mounted, perpendicularly, on said shaft fixed, between the two ends of the latter.
  • Each of plates of this second set is arranged between two plates of the first game equipping said flat wheel.
  • This last has, on the periphery, a sawtooth crown capable of cooperate with a crown of complementary shape fitted to the chain wheel which, when activated, repels said flat wheel, against the action of elastic return means. This authorizes the detachment of the plates equipping said wheel plane of those integral with the fixed shaft.
  • the elastic return means push said flat wheel towards the chain wheel which causes the clutch of the two sets of plates.
  • this device has a complex design involving a large number of parts including the in place and adjustment is tedious. This is, in particular, thus for the plates of the braking device which must, in addition, respect a determined spacing between them in order to authorize their detachment while avoiding remaining engaged.
  • the meshing means equipping the chain wheel act on a heavy and bulky set made up, in particular, by the flat wheel and the winding shaft receiving the curtain or the like. Also, the fact of ensuring the displacement, in rotation and, above all, in translation, of this set is inevitably results in rapid and significant wear of the means of engagement.
  • moving said tree drive in the axial direction has the effect of deporting laterally the curtain which is detrimental to the scrolling of the latter, particularly if the latter were to be guided in side slides.
  • the present invention aims to provide a solution to the problem posed through a blocking device unidirectional very simple design, at least avoiding compliance with very strict manufacturing tolerances. This not only results in lower manufacturing costs, but also a reduction in a possible risk of failure of such a unidirectional locking device.
  • the invention relates to a blocking device unidirectional interposed between a drive mechanism, in particular of the manual type, and a winding shaft of a roller shutter curtain, said device being constituted, on the one hand, by a brake comprising a fixed plate associated with a fixed part of the roller shutter, against this fixed plate being pushed back, by elastic return means, a plate movable integral in rotation with said winding shaft and, on the other hand, by means of engagement of the mechanism drive on said movable platform provided suitable, under the momentum of a couple impressed by said mechanism training, to exercise, on this movable platform, at least one torque and an axial component force to ensure the detachment of said movable plate relative to the fixed plate, against the action of elastic return means, characterized by the fact that, on the one hand, the movable plate is mounted movable axially on the winding shaft and has a nozzle slidably fitted axially, at one end of the shaft winding, between the latter and this tip intervening means for locking in rotation
  • the quality of the blocking of the deck winding shaft depends mainly on the braking coefficient provided by the fittings fitted to the brake pads.
  • the present invention relates to the field of roller shutters.
  • a such rolling shutter 1 comprising an apron 2 defined by a juxtaposition of blades 3, this deck 2 being provided capable of coming wrap around a winding shaft 4 plus particularly illustrated in Figures 2 and 3, taking position inside a housing 5 accommodating, for elsewhere, the drive mechanism 6 of this roller shutter 1.
  • winding shaft 4 is mounted in rotation, at level of its ends 7, in bearings 8 associated with support cheeks 9 integrated into the box 5.
  • this drive mechanism 6 is defined, in this case and as an example, by a pulley 10 around which is caused to wind, at least partially, a traction member 11 such as a strap, a chain, a cord or the like.
  • a traction member 11 such as a strap, a chain, a cord or the like.
  • This roller shutter 1, according to the invention, is provided, in in addition, a unidirectional locking device 13 interposed between the drive mechanism 6, here in the form of a pulley 10, and the winding shaft 4.
  • This unidirectional locking device 13 has the function to ensure the immobility in rotation of said winding shaft 4 spurred on by a couple directly imprinted on this last, for example, by the weight of the deck 2.
  • such a unidirectional locking device 13 is defined capable of authorizing the rotation control of this winding shaft 4 through the drive mechanism 6.
  • this one-way locking device 13 is characterized in that it consists, on the one hand, of a brake 14 comprising a fixed plate 15 against which is pushed back, by elastic return means 16, a plate 17 which itself is mounted movable, axially while being integral in rotation, on the winding shaft 4.
  • such a movable tray 17 is preferably mounted on this winding shaft 4 at one of the ends 7 of the latter.
  • this movable plate 17 has a nozzle 18 provided capable of being fitted, so sliding axially, in this end 7 of the shaft winding 4, usually of tubular type.
  • the winding shaft 4 can be lined, internally, at using a sleeve 19 adjusted to the nozzle 18. Between the latter and, as the case may be, said sleeve 19 or else the shaft winding 4 are then arranged locking means in rotation 20 of the key, groove and tongue type or the like.
  • This movable plate 17 is further defined by a flange annular 21 receiving a brake lining 22 facing with the fixed plate 15 which can itself be provided with a such brake lining 23.
  • this fixed plate 15 that it is necessarily associated with a fixed part of the roller shutter 1.
  • a fixed plate 15 is defined, substantially by a support cheek 9 against which is then able to be pushed back the movable plate 17 under the impulse of said elastic return means 16.
  • this brake 14 of the blocking device unidirectional 13 can take position inside the bearing 8 ensuring the rotation of the shaft winding 4.
  • this bearing 8 is, in this case, defined in the form of a ferrule 24 integral with said support cheek 9 and extending in the direction of the winding shaft 4.
  • This ferrule 24 is provided at its free end 25 with a bearing annular 26 defining the bearing 8 proper and coming cooperate with a cylindrical seat 27, either directly associated with the winding shaft 4, that is to say the movable plate 17 brake 14.
  • the ferrule 24 associated with the support cheek 9 delimits a housing 28 provided to accommodate the brake 14.
  • elastic return means 16 they are, here, interposed between the annular surface 26 and the corresponding annular flange 21 to the moving plate 17.
  • the unidirectional locking device 13 consists, on the other hand, by meshing means 29 of the mechanism 6 on the movable plate 17 which are provided capable, under the impulse of a torque imparted by said mechanism 6, to exercise, on this movable plate 17, at least a torque and a force f with an axial component to ensure the detachment of said movable plate 17 relative to the fixed plate 15, against the action of the elastic return means 16.
  • these means meshing 29 consist of a first associated disc 30 to said movable plate 17 of the brake 14 and into a second disc 31 integral, in rotation and in translation, with a shaft 32 of the drive mechanism 6.
  • This first and this second disc 30, 31 come to mesh with each other at the means of teeth 33, drive fingers, pins or analogues whose profile 34 is defined capable of meeting the aforementioned condition.
  • this race 35 corresponds to the persistent play between the end edge of the winding shaft 4 and a shoulder 36 defined, in correspondence, at the level of the external part of the end piece 18 corresponding to the movable plate 17.
  • the disc 31, integral with a drive shaft 32 of the drive mechanism 6, is necessarily maintained fixed in translation, at least in the direction corresponding to race 35, so that you can control it.
  • the present invention makes it possible to respond, advantageously, to the problem posed insofar as it relates to a device unidirectional locking mechanism both simple and of an operation on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP19990440064 1998-04-02 1999-03-26 Einwegarretiereinrichtung für Rolladen Expired - Lifetime EP0947661B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9804275A FR2777037B1 (fr) 1998-04-02 1998-04-02 Dispositif de blocage unidirectionnel pour volet roulant
FR9804275 1998-04-02

Publications (2)

Publication Number Publication Date
EP0947661A1 true EP0947661A1 (de) 1999-10-06
EP0947661B1 EP0947661B1 (de) 2003-06-04

Family

ID=9524921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990440064 Expired - Lifetime EP0947661B1 (de) 1998-04-02 1999-03-26 Einwegarretiereinrichtung für Rolladen

Country Status (4)

Country Link
EP (1) EP0947661B1 (de)
DE (1) DE69908473T2 (de)
ES (1) ES2200487T3 (de)
FR (1) FR2777037B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1568845A1 (de) * 2004-02-26 2005-08-31 Deprat Jean SA Vorrichtung zum Verschliessen und Öffnen eines Öffnungselementes mit Kopplungbegrenzungsfähigkeit
CN107503662A (zh) * 2017-09-21 2017-12-22 闫淑军 一种带有双重防盗锁的电动卷闸门

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005015172A1 (de) * 2005-04-02 2006-11-09 Gross, Beatrix, Dipl.-Ing. Bremse eines Sonnenschutzantriebs

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004629A1 (de) * 1978-04-04 1979-10-17 LEOPOLDO CARDUCCI & C. S.a.s. Betätigungs- und Feststellvorrichtung für Rollvorhänge
US5488983A (en) * 1989-08-30 1996-02-06 Odin Ag Roller assembly for curtains and the like

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749361B1 (fr) 1996-05-28 1998-08-07 Somfy Reducteur avec accouplement de holdam

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004629A1 (de) * 1978-04-04 1979-10-17 LEOPOLDO CARDUCCI & C. S.a.s. Betätigungs- und Feststellvorrichtung für Rollvorhänge
US5488983A (en) * 1989-08-30 1996-02-06 Odin Ag Roller assembly for curtains and the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1568845A1 (de) * 2004-02-26 2005-08-31 Deprat Jean SA Vorrichtung zum Verschliessen und Öffnen eines Öffnungselementes mit Kopplungbegrenzungsfähigkeit
FR2866921A1 (fr) * 2004-02-26 2005-09-02 Deprat Jean Sa Dispositif de fermeture et d'ouverture d'un ouvrant a fonction de limiteur de couple
CN107503662A (zh) * 2017-09-21 2017-12-22 闫淑军 一种带有双重防盗锁的电动卷闸门
CN107503662B (zh) * 2017-09-21 2019-04-23 闫淑军 一种带有双重防盗锁的电动卷闸门

Also Published As

Publication number Publication date
FR2777037B1 (fr) 2000-05-26
DE69908473D1 (de) 2003-07-10
ES2200487T3 (es) 2004-03-01
EP0947661B1 (de) 2003-06-04
DE69908473T2 (de) 2004-05-13
FR2777037A1 (fr) 1999-10-08

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