EP1678405A1 - Systeme permettant de faire bouger des stores - Google Patents

Systeme permettant de faire bouger des stores

Info

Publication number
EP1678405A1
EP1678405A1 EP04775007A EP04775007A EP1678405A1 EP 1678405 A1 EP1678405 A1 EP 1678405A1 EP 04775007 A EP04775007 A EP 04775007A EP 04775007 A EP04775007 A EP 04775007A EP 1678405 A1 EP1678405 A1 EP 1678405A1
Authority
EP
European Patent Office
Prior art keywords
roller
drive
clutch
blind
assembly according
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.)
Withdrawn
Application number
EP04775007A
Other languages
German (de)
English (en)
Inventor
Marinus Henricus Maria Schoonen
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.)
Holding Nutsbedrijf Westland NV
Original Assignee
Holding Nutsbedrijf Westland NV
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 Holding Nutsbedrijf Westland NV filed Critical Holding Nutsbedrijf Westland NV
Publication of EP1678405A1 publication Critical patent/EP1678405A1/fr
Withdrawn legal-status Critical Current

Links

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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • 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
    • E06B9/70—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller
    • 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
    • E06B2009/885—Braking mechanism activated by the bottom bar

Definitions

  • the present invention relates to an assembly comprising a roller for accommodating a fabric blind and a drive positioned in line therewith, said drive comprising an electric drive motor, wherein limit switching means are present for stopping the rotation of said roller in an end position thereof.
  • Such an assembly is generally known in the state of the art. This is used, for example, in a tube motor, that is to say a construction where the electric motor including drive is accommodated in the roller. To determine the end positions of the roller, that is to say the fully rolled up and fully lowered position of the blind, there is a construction that counts the number of revolutions of the roller and halts the operation of the motor by electronic means.
  • GB 1 067 371 discloses a system for rolling up heavy metal panels. This consists of a motor drive with drum component permanently mounted on a wall. There is another drum component on the other wall and this is driven by the motor drive via an auxiliary shaft. There is a return spring. Furthermore, there is a clutch. This clutch is cable-operated and can be used if the motor has to be decoupled from the roller parts for any reason. The problems mentioned above cannot be solved by this means. The aim is to overcome these disadvantages and this aim is realised in an assembly as described above in that the limit switching means comprise a clutch, between said drive motor and said roller, that limits transmission moment, and operating means for said clutch.
  • a slipping clutch is fitted between the electric motor and the roller. Should the movement of the roller be stopped for any reason and the motor still be operated, as a result of the slipping clutch the motor can continue to run without damage occurring to it in the longer term. That is to say the maximum moment that can be transmitted by the motor to the roller is limited, as a result of which damage to the motor is prevented.
  • the clutch is operated when the end point of the blind is reached.
  • said operation comprises locking means coming into effect. That is to say when an end position is reached the roller is locked and is not able to perform any further movement. The electric motor can then continue to run for some time, with slipping of the clutch, without damage.
  • This operation can be either electrical or mechanical.
  • a particularly simple embodiment can be achieved mechanically by fitting tabs or the like on the blind that engage on a lever or the like fitted on the drive, which lever, in turn, engages on, that is to say locks, the part of the clutch connected to the roller.
  • the various features are preferably so constructed that locking can be obtained in two directions. That is to say, both locking against further unrolling and locking against further rolling up of the blind is achieved.
  • the clutch preferably comprises a spring-loaded clutch. More particularly, this spring loading is adjustable. Depending on the weight of the blind, the length thereof and the like, the spring force on the clutch can be so adjusted that slipping already occurs when the electric motor is slightly overloaded. By this means damage to both the electric motor and to the blind can be prevented in situations where the blind is not guided upwards or downwards in the correct manner.
  • the drive can be accommodated either inside or outside the roller.
  • time-controlled switching of the electric motor is possible. That is to say if a blind, for example, has to be opened, the electric motor is operated for a relatively long period. The blind will have reached the open position in a relatively short time and in that position the clutch at the side of the roller will be locked so that force is no longer exerted on the roller. The electric motor then continues to run for some time, slipping with the clutch, without this, however, causing damage.
  • Such a construction is interesting in particular if a system is used that comprises at least two assemblies as described above. After all, at that point in time the control of the electric motors is no longer critical and a relatively long time can be taken for moving the blinds both upwards and downwards. Each blind will cut out in the correct position when the lowest point is reached. Everything is determined on the basis of movement and not on the basis of time or number of revolutions completed. In this way (various blinds) problems are solved that arise from the fact that some blinds move more rapidly and/or move further than other blinds.
  • Fig. 1 shows, diagrammatically, a perspective view of a system comprising two assemblies according to the invention
  • Fig. 2 shows a detail of the drive/roller according to the present invention in a first embodiment
  • Fig. 3 shows an exploded view of various components of part of the drive according to Fig. 2;
  • Fig. 4 shows a variant of the drive.
  • a system consisting of two assemblies 1, each comprising a blind 5 that has to be wound around a roller 4 with the aid of a drive 6, is indicated in its entirety by 2. These two assemblies 1 are controlled with a controller 7.
  • the system is fitted in a wall, the columns of which are indicated by 3.
  • the blind 5 is wound up or, alternatively, unwound by rotating roller 4.
  • the blind 5 is provided with end tabs 33 and 34.
  • the drive 6 consists of an electric motor 8, a clutch 9 and a reduction gear 10 com ected after these.
  • the reduction gear 10 is a conventional double planetary transmission 24 with the conventional satellites, sun gears and the like.
  • the fixed housing is indicated by 26.
  • the output shaft 11 of motor 8 is joined to a sleeve 13 such that these cannot turn with respect to one another.
  • This sleeve 13 is provided at one end with a cheek 15 and is provided at the other end with a screw thread 14 onto which a milled nut 12 can be screwed over a greater or lesser distance.
  • the sleeve 13 is provided with toothing 16.
  • Clutch plates 19 are provided with corresponding internal toothing, that is to say are fitted on the sleeve 13 such that they cannot turn.
  • Clutch plates 20 that can rotate freely around sleeve 13 but are provided with external toothing are located between the clutch plates 19.
  • the sleeve 25 runs with milled nut 12 in the longitudinal direction of the sleeve 13 along the screw thread 14.
  • the sleeve 25 strikes this so that it is not possible to tension the spring packet 23 to an unlimited extent. This means that the maximum spring loading is determined by specifying the strength of the springs and the position of groove 21 and that, starting from this, the spring loading can be reduced by unscrewing the nut 12.
  • the external toothing on the clutch plates 20 engages a clutch housing 17 and more particularly on internal toothing 18 thereof.
  • the clutch housing 17 is joined to the input gear of the first planetary transmission 24 such that these cannot turn with respect to one another.
  • the construction described above functions as follows. Starting from the blind in the rolled-up position it is decided to lower the blind completely. For this purpose the two motors 8 in the construction shown in Fig. 1 are operated with the control unit 7 for a sufficiently long time that it is always ensured that the blind 5 completely unwinds.
  • the nut 12 can be tightened by adjustment so as by this means to set the spring force on the clutch group and delay the slip moment.
  • FIG. 4 A variant of the construction shown in Figs 2 and 3 is shown in Fig. 4. hi this variant the roller 4 moves together with the drive 36 up and down along column 3 (see Fig. 1). That is to say, the blind is fixed at the top and when it rolls up on roller 44 the drive 38 also moves up and down. To this end there is a guide section 40 provided with wheels 41 that can move along column 3.
  • the electric motor 3S is connected to the clutch via a right-angled transmission 39. hi other respects tins construction functions correspondingly to what has been described above.
  • clutch plate material used in the state of the art can be used for the clutch described above.
  • examples of such materials are sintered bronze plates and plates with any other lining.
  • the clutch plates can be provided with grooves and the like.

Landscapes

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

Abstract

L'invention concerne un ensemble consistant en un rouleau et un système d'entraînement. Ce rouleau permet de dérouler ou, dans une alternative, de dérouler un store en tissu autour de celui-ci. Lorsque la position entièrement ouverte ou entièrement fermée est atteinte, une commutation mécanique est effectuée dans le système d'entraînement entre un moteur électrique et un rouleau au moyen d'une languette d'extrémité disposée sur le store en tissu. Ce système d'entraînement est pourvu d'un système d'accouplement à glissement. Le fonctionnement de la languette d'extrémité permet donc d'interrompre l'entraînement du rouleau. Le système d'accouplement à glissement est conçu de manière que le moteur électrique puisse continuer de tourner un certain temps sans causer de dommages.
EP04775007A 2003-10-09 2004-10-08 Systeme permettant de faire bouger des stores Withdrawn EP1678405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1024498A NL1024498C2 (nl) 2003-10-09 2003-10-09 Stelsel voor het bewegen van schermen.
PCT/NL2004/000712 WO2005033463A1 (fr) 2003-10-09 2004-10-08 Systeme permettant de faire bouger des stores

Publications (1)

Publication Number Publication Date
EP1678405A1 true EP1678405A1 (fr) 2006-07-12

Family

ID=34420827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04775007A Withdrawn EP1678405A1 (fr) 2003-10-09 2004-10-08 Systeme permettant de faire bouger des stores

Country Status (3)

Country Link
EP (1) EP1678405A1 (fr)
NL (1) NL1024498C2 (fr)
WO (1) WO2005033463A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10955009B2 (en) 2018-04-03 2021-03-23 Borgwarner Inc. Clutch pack having different clutch plate materials

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1067371A (en) * 1964-04-21 1967-05-03 Nihon Bunka Shutter Company Lt A shutter winding device
CH686973A5 (de) * 1992-05-05 1996-08-15 Baumann Rolladen Verfahren zum Antrieb und Steuerung von Raffstoren oder Rollaeden.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005033463A1 *

Also Published As

Publication number Publication date
NL1024498C2 (nl) 2005-04-15
WO2005033463A1 (fr) 2005-04-14

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