EP1686231B1 - Dispositif de prévention de dommages à des volets - Google Patents

Dispositif de prévention de dommages à des volets Download PDF

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Publication number
EP1686231B1
EP1686231B1 EP20050405648 EP05405648A EP1686231B1 EP 1686231 B1 EP1686231 B1 EP 1686231B1 EP 20050405648 EP20050405648 EP 20050405648 EP 05405648 A EP05405648 A EP 05405648A EP 1686231 B1 EP1686231 B1 EP 1686231B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
coupling
winding
winding shaft
coupling means
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.)
Active
Application number
EP20050405648
Other languages
German (de)
English (en)
Other versions
EP1686231A1 (fr
Inventor
Stefan Lang
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.)
Griesser Holding AG
Original Assignee
Griesser Holding AG
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 Griesser Holding AG filed Critical Griesser Holding AG
Publication of EP1686231A1 publication Critical patent/EP1686231A1/fr
Application granted granted Critical
Publication of EP1686231B1 publication Critical patent/EP1686231B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives

Definitions

  • the invention relates to a device for preventing damage to hangings according to the preamble of patent claim 1.
  • Hangings such as blinds with non-compressible lateral elevator means such as chains or steel bands, in particular motor-driven shutters or blinds, are exposed to a latent risk of damage from objects or other obstacles which are in the path of the blind or the store. There is also the risk of damage by ice or snow in the lateral guides, which can prevent lowering.
  • DE 3 108 702 A or EP 0 246 338 A Devices are known which should protect the blinds from damage.
  • a widely known device is the end rail, ie, in principle, the lowest blade, in contact with to decouple an obstacle in the guideway from the lateral elevator means. By decoupling the end rail and the function of the anti-surge can be impaired.
  • An object of the present invention is to provide a device for preventing damage to hangings, in which the elevator shaft is decoupled from the elevator wheel when a predetermined resistance is exceeded by the curtain and - after removal of the obstacle - is connected again true to angle.
  • the inventive connection between the elevator shaft and the elevator wheel allows uncoupling of the two elements and later a true-angle re-engagement after removal of the obstacle.
  • the drive motor can continue to rotate until the duration of a regular closing time without the store being damaged.
  • FIG. 1 only the essential elements of the invention of a slat blind 1 are shown.
  • An elevator shaft 3 is driven by a motor M not shown directly or by an unillustrated transmission by hand.
  • the elevator means 7 in turn are protected and guided on all sides within guide rails 9 with a C-shaped cross-section.
  • a plurality of fins 11 are used, the ends of which are pivotally guided via pivot pins 13 in the guide rails 9.
  • connection between the lowermost fin 11 and the elevator means 7 is not part of this invention; It is well known in the prior art and in many variants.
  • a turning device 15 can furthermore be arranged on the winding shaft 3, by means of which the blade angle can be adjusted.
  • the turning device 15 is also not part of the invention and will therefore not be explained in detail. It is well known in the prior art in many designs. Instead of pivotable slats 11 and rods can be connected to the elevator means 7 and form a shutter.
  • FIG. 2 is enlarged, the elevator wheel 5 visible for a chain, which is mounted on a coupling device, short coupling 17 and connected to this rotation, visible.
  • the elevator shaft 3 is shown, which penetrates the coupling 17 axially in a suitably formed bore.
  • the coupling 17 comprises a sleeve 19 in the form of a Hollow cylinder, which has a collar or paragraph 21 at one end.
  • the helical gear 23, on the one hand, has a polygonal bore corresponding to the cross-section of the elevator shaft 3 and is co-rotated by it in a form-fitting manner.
  • the at least one screw thread 25 or the at least one end face 27 of the helical gear 23 bears against a correspondingly formed step 29 in the collar 21. In a multi-speed screw 25 more levels 29 are provided in the collar 21 accordingly.
  • the sleeve 19 is rotated by the helical gear 23 which is non-rotatably mounted on the winding shaft 3.
  • the entrainment takes place on the one hand due to static friction of the screw threads 25 on the collar 21 and on the other hand or mainly due to the hanging on the elevator means 7 slats 11, which exert a moment on the winding wheel 5.
  • a rib 30 may be formed, which engages in a corresponding groove 32 at the end of the screw 25.
  • a helical spring-like trained element 31 wraps around the winding shaft 3, without being in contact with it.
  • Cams 33 mounted on the periphery of the element 31, which engage in an axially extending groove 34 in the bore of the sleeve 19, prevent co-rotation of the element 31 when the at least one screw thread 25 screws into the element 31.
  • the screwing between the connections of the element 31 continues as long as the obstacle exerts a moment on the helical gear 23. During this time, the helical gear 23 screws through the turns of the element 31 to the right.
  • the individual turns of the element 31 may, in contrast to the turns of a coil spring, the end face abut each other and are only temporarily by the helical gear 23, in the example according to the characters 3 and 4
  • the number of turns of the element 31 is ideally so large that it corresponds to the maximum number of shaft revolutions of the elevator shaft 3, which corresponds to the maximum number of shaft revolutions of the elevator shaft 3, which for the opening or closing of the store are necessary.
  • the element 31 is formed as a helically wound sheet metal strip whose narrow edges form the shell and the bore of a hollow cylinder.
  • the traveling nut 35 is the front side of the collar 21 and the step 29 of the sleeve 19 and rotates when the elevator shaft 3 is rotated. If the curtain meets 1 obstacle, the traveling nut 35 begins to rotate in the sleeve 19 and the traveling nut 35 moves (in FIG. 8 ) left to right. In this case, despite the rotational movement of the elevator shaft 3, the sleeve 19 with the elevator wheel 5 mounted thereon remains standing as long as the obstacle is present.
  • the traveling nut 35 After cancellation of the force acting on the curtain 1 by the obstacle and reversal of the direction of rotation of the elevator shaft 3, the traveling nut 35 initially screwed in the internal thread 39 from the right to the starting position on the left side and thereby couples the elevator 5 to the elevator shaft 3, if the End of the screw 37 abuts the step 29.
  • the coupling 17 has, in particular if it is used in an element 31 according to the first embodiment, an extremely low axial height and can consequently be used on each curtain 1, in the slats 11 or in a shutter, the rods of a chain 7 vertically become.

Landscapes

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

Claims (6)

  1. Dispositif de prévention de dommages à des volets ayant des moyens latéraux de montée non comprimable, comprenant un arbre (3) de montée, qui est en coopération avec un élément (M) d'entraînement pouvant fonctionner à la main ou de manière motorisée, et comprenant un accouplement (17) destiné à interrompre la liaison entre l'élément (M) d'entraînement et le rail d'extrémité du volet, caractérisé en ce que l'accouplement (17) comprend un manchon (19) qui entoure l'arbre (3) de montée, qui est solidaire en rotation d'une roue (5) de montée pour le volet (1) dans lequel est inséré un moyen (23, 35) d'accouplement coulissant axialement et solidaire en rotation de l'arbre (3) de montée, lequel moyen (23, 35) d'accouplement produit, lorsque le rideau est abaissé et lorsqu'il est relevé, une coopération entre l'arbre (3) de montée et la roue (5) de montée et met fin à la coopération s'il se produit une force agissant à l'encontre du mouvement de rotation de la roue (5) de montée et le moyen (23, 35) d'accouplement se déplace axialement sur l'arbre (3) de montée par un élément (31, 39) de forme hélicoïdale.
  2. Dispositif suivant la revendication 1, caractérisé en ce que le moyen (35) d'accouplement comprend à la périphérie un pas (25) de vis, qui engrène, dans un taraudage (39) du manchon (19).
  3. Dispositif suivant la revendication 1, caractérisé en ce que le moyen (23) d'accouplement comprend au moins un pas (25) de vis en périphérie, qui pénètre entre les spires d'un élément (31) en hélice.
  4. Dispositif suivant la revendication 3, caractérisé en ce que l'élément (31) est maintenu fixe en rotation dans le manchon (19) et coulissant axialement dans ce dernier.
  5. Dispositif suivant la revendication 3 ou 4, caractérisé en ce que l'élément (31) comprend une bande de tôle enroulée en hélice, dont les bords étroits forment le trou et la surface latérale d'un cylindre creux.
  6. Dispositif suivant l'une des revendications 1 à 5, caractérisé en ce que, sur un collet (21) du manchon (19), est formé un gradin (29) qui sert de butée et sur lequel l'extrémité d'un pas (25, 37) de vis ménagé du côté frontal sur l'élément (23, 35) d'accouplement s'applique en fonctionnement normal.
EP20050405648 2005-01-14 2005-11-18 Dispositif de prévention de dommages à des volets Active EP1686231B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH522005 2005-01-14

Publications (2)

Publication Number Publication Date
EP1686231A1 EP1686231A1 (fr) 2006-08-02
EP1686231B1 true EP1686231B1 (fr) 2012-07-25

Family

ID=36169087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050405648 Active EP1686231B1 (fr) 2005-01-14 2005-11-18 Dispositif de prévention de dommages à des volets

Country Status (2)

Country Link
EP (1) EP1686231B1 (fr)
ES (1) ES2393960T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2085564A3 (fr) 2008-01-30 2013-05-15 Gerhard Geiger GmbH & Co. Dispositif d'entraînement doté d'un accouplement à patinage ou d'un frein
EP2549051B1 (fr) * 2011-07-18 2014-11-26 Tsung-Yuan Hsu Dispositif de contrôle de store pour stores vénitiens

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1131005B (it) * 1980-03-20 1986-06-18 Imbac Spa Dispositivo automatico di sganciamento per fine corsa di discesa,accoppiabile ad arganelli di manovra per persiane avvolgibili
CH649603A5 (it) * 1982-05-03 1985-05-31 Regazzi Efrem Fa Tapparella.
EP0246338A1 (fr) * 1986-05-17 1987-11-25 Carlo Maurizio Pozzi Dispositif d'arrêt du déroulement de rideaux pare-soleil
FR2697577B1 (fr) * 1992-11-03 1995-01-13 Simu Mécanisme à débrayage automatique pour l'actionnement des stores et autres dispositifs de fermeture à enroulement.

Also Published As

Publication number Publication date
EP1686231A1 (fr) 2006-08-02
ES2393960T3 (es) 2013-01-03

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