EP1045957B9 - Mecanisme de blocage et declenchement de rotation pour stores roulants - Google Patents

Mecanisme de blocage et declenchement de rotation pour stores roulants Download PDF

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Publication number
EP1045957B9
EP1045957B9 EP99971890A EP99971890A EP1045957B9 EP 1045957 B9 EP1045957 B9 EP 1045957B9 EP 99971890 A EP99971890 A EP 99971890A EP 99971890 A EP99971890 A EP 99971890A EP 1045957 B9 EP1045957 B9 EP 1045957B9
Authority
EP
European Patent Office
Prior art keywords
ball
inner part
blocking
pulley
pulling
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
Application number
EP99971890A
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German (de)
English (en)
Other versions
EP1045957B1 (fr
EP1045957A1 (fr
Inventor
Ken Rasmussen
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.)
Chr Fabers Fabriker AS
Original Assignee
Chr Fabers Fabriker AS
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Filing date
Publication date
Application filed by Chr Fabers Fabriker AS filed Critical Chr Fabers Fabriker AS
Publication of EP1045957A1 publication Critical patent/EP1045957A1/fr
Application granted granted Critical
Publication of EP1045957B1 publication Critical patent/EP1045957B1/fr
Publication of EP1045957B9 publication Critical patent/EP1045957B9/fr
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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
    • E06B9/90—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

Definitions

  • the invention relates to a blocking and un-blocking mechanism for a roller blind according to the preamble of claim 1.
  • Roller blinds are of two main types.
  • the first type as shown in US-A-4 345 636 or GB-A-2 199 065 has a manual pull in the lower edge part so that a spring inside the roller blind roller is tightened when the blind is pulled down.
  • This is a self-raising roller blind.
  • Such elements are presently frequently balls which are carried in pockets in the rotating outer part.
  • the roller blind is to be raised again the lower edge part has to be pulled, and it must be quickly released, in order that the wedged-in ball is released, and the roller blind must under the influence of the spring obtain such a great rotational speed that all balls remain in the pockets in the outer part.
  • the other type is activated by pulling an endless ball chain at one end of the roller blind.
  • a pull in one direction causes raising against gravity, and the ball chain must be blocked when the roller blind has the correct position. Lowering is performed by releasing the blocking and braking against gravity.
  • DE-A-23 39 170 describes a blocking member which is positively controlled by guide surfaces, the position of which is established by a resilient member.
  • the problem solved by these constructions is that of obtaining instant stopping at the moment the ball chain is released during the winding or unwinding operation.
  • the flexible element is an endless ball chain and in that the pulley is a chain wheel carrying a number of axially protruding arms in a number which corresponds to the number of balls, wherein by pulling the ball chain in one direction it establishes a link between the the chain wheel and the roller blind tube and wherein by pulling the ball chain in the other direction it releases the ball (10) which is presently wedged-in.
  • the axially protruding arms are provided with symmetrically placed release surfaces.
  • Fig. 1 shows the internal mechanism in a roller for a roller blind with operation control to be located on the left side. It consists of an inner part having the form of a rod 1, around which a raising helical spring which is not shown may be placed, so that one end of the spring is connected to an outer part having the form of a bushing 2, and the other end of the spring is connected to the end of the rod 1.
  • the rod 1 is non-rotating, in that it is provided with an insert 3 which is secured against rotation by insertion into a bracket.
  • the insert 3 furthermore ensures that a shield 4 for a pull cord also remains non-rotating.
  • the roller blind which is not shown will rotate around the stationary rod 1, wherein the bushing 2 constitutes a bearing.
  • Fig. 2 some of the elements of Fig. 1 are shown in larger scale.
  • the shield 4 is provided with two large openings 8 and 9 which permit a large deviation angle for the operating cord.
  • the chain wheel 5 is placed rotatably on the part 6 and has three arms A which engage into the bushing 2.
  • the directions S show how the cord or the ball chain mesh with the chain wheel 5.
  • the arms A have a particular cross section which make the invention operational.
  • Fig. 3a a cross section of the bushing 2 which rotates around the part 6 on the rod 1 is shown. Only one ball is shown, in the pocket 11, but in practical use there are also balls in the pockets 12 and 13. The ball is flung against that part of the pocket which is most remote from the axis of rotation, and for this reason it does not create any blocking.
  • Driving from the chain wheel 5 occurs by engagement of the arms A in corresponding hollows B in the bushing 2.
  • Fig. 3b a corresponding cross section as in Fig. 3a is seen, wherein only the ball performs its blocking function.
  • the ball 10 is wedged between the left edge of the pocket 11 and the right edge of the depression 7.
  • the invention is brought into action by pulling in the ball chain, so that the flange A' on the arm A pushes the ball 10 out of engagement between the edge 11 of the pocket and the depression 7. In the figure this corresponds to a clockwise rotation of the cord pulley 5 with the arms A mentioned.
  • the arms A have a symmetrical cross section with two similarly made flanges A' which means that the chain wheel 5 may be made in one piece and still be used for operation from the left side or from the right side, wherein there will be a flange A' available in both situations for acting on a blocking ball.

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 (3)

  1. Mécanisme de blocage et déclenchement pour un store roulant comprenant
    a) une partie intérieure non-rotatif (1)
    b) une partie extérieure tournable (2)
    c) une poulie (5) pourvue a une coté de la partie intérieure (1)
    d) et et dans lequel la poulie (5) et situé tournable sur une partie (6) de la partie intérieure (1)
    e) un nombre de billes (10) qui sont capables d'être coincé entre la partie intérieure (1, 6) et la partie extérieure (2), ledit mécanisme étant du type permettant, sous certain conditions de vitesse de rotation, le coincement d'une des billes (10) entre la partie intérieure (1, 6) et la partie extérieure (2)
    caracterisé en ce que le mécanisme comprends en outre
    f) un élement de tirage flexible (S) pour faire fonctionner le store, mis autour de la poulie (5) pres d'une coté de la partie intérieure (1),
    g) dans lequel la polie (5) porte un élement (A) qu'engrène la partie extérieure tournable (2), ainsi que quand l'élément de tirage flexible (S) est tiré, il est capable de pousser une bille coincé (10) pour permettre le rotation de la partie extérieure (2) relative à la partie intérieure (1, 6).
  2. Mécanisme selon revendication 1, l'élement flexible est une chaîne a billes infini (S) et en ce que la poulie est à chaîne (5) qui porte des bras saillant axialement (A) au nombre correspondent au nombre de billes (10), le tirage de la chaîne a billes (S) dans une direction établissant une connexion entre la poulie a chaîne (5) et la partie intérieure, et le tirage dans la direction opposée dégage la bille (10) que est coincé.
  3. Mécanisme selon revendication 2, caracterisé en ce que les bras saillant axialement (A) sont pourvue des surfaces de dégagement (A') placé symmetriquement.
EP99971890A 1998-11-09 1999-11-09 Mecanisme de blocage et declenchement de rotation pour stores roulants Expired - Lifetime EP1045957B9 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK144498 1998-11-09
DK199801444A DK199801444A (da) 1998-11-09 1998-11-09 En spærreanordning til et rullegardin
PCT/DK1999/000618 WO2000028187A1 (fr) 1998-11-09 1999-11-09 Mecanisme de blocage de rotation pour stores roulants

Publications (3)

Publication Number Publication Date
EP1045957A1 EP1045957A1 (fr) 2000-10-25
EP1045957B1 EP1045957B1 (fr) 2009-08-19
EP1045957B9 true EP1045957B9 (fr) 2010-02-03

Family

ID=8104904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99971890A Expired - Lifetime EP1045957B9 (fr) 1998-11-09 1999-11-09 Mecanisme de blocage et declenchement de rotation pour stores roulants

Country Status (5)

Country Link
EP (1) EP1045957B9 (fr)
AU (1) AU1150700A (fr)
DE (1) DE69941286D1 (fr)
DK (2) DK199801444A (fr)
WO (1) WO2000028187A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005075788A1 (fr) * 2004-01-30 2005-08-18 Carl Emil Felix Minder Dispositif de blocage de rideau au moyen d'un mecanisme d'enroulement elastique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5520815A (en) * 1978-07-31 1980-02-14 Metako Kigyo Kk Rolled screen
FR2547855A1 (fr) * 1983-06-22 1984-12-28 Farnier & Penin Store deroulable a moyens d'arret multiples le long de sa course
US5099906A (en) * 1989-09-19 1992-03-31 Metaco Co., Ltd. Roller screen unit
US5566741A (en) * 1993-06-02 1996-10-22 Kabushiki Kaisha Nichibei Roll screen apparatus
ITAN940011A1 (it) * 1994-03-09 1995-09-11 Gaposa Srl Dispositivo di arresto ammortizzato per serrande o tapparelle
DE19542565A1 (de) * 1995-11-15 1997-05-22 Wiral Rolladenfertigungs Und V Sicherungsvorrichtung für einen Rolladen oder ein Rolltor

Also Published As

Publication number Publication date
DE69941286D1 (de) 2009-10-01
AU1150700A (en) 2000-05-29
DK1045957T3 (da) 2009-12-21
DK199801444A (da) 2000-05-10
EP1045957B1 (fr) 2009-08-19
EP1045957A1 (fr) 2000-10-25
WO2000028187A1 (fr) 2000-05-18

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