EP1045955B1 - Dispositif de cordon de tirage pour store venitien ou analogue - Google Patents

Dispositif de cordon de tirage pour store venitien ou analogue Download PDF

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Publication number
EP1045955B1
EP1045955B1 EP99900443A EP99900443A EP1045955B1 EP 1045955 B1 EP1045955 B1 EP 1045955B1 EP 99900443 A EP99900443 A EP 99900443A EP 99900443 A EP99900443 A EP 99900443A EP 1045955 B1 EP1045955 B1 EP 1045955B1
Authority
EP
European Patent Office
Prior art keywords
cord
pulley
shaft
pulleys
housing
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
EP99900443A
Other languages
German (de)
English (en)
Other versions
EP1045955A1 (fr
Inventor
Poul Christian Jensen
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
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 Chr Fabers Fabriker AS filed Critical Chr Fabers Fabriker AS
Publication of EP1045955A1 publication Critical patent/EP1045955A1/fr
Application granted granted Critical
Publication of EP1045955B1 publication Critical patent/EP1045955B1/fr
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
    • E06B9/24—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 mechanism in a toprail for an actuating cord for Venetian blinds and the like comprising a driven cord pulley and friction reducing means at the exit of the cord from the mechanism.
  • US 1,822,318 shows a construction that is combination of the two types described above, in that it has a gearing for actuating the Venetian blind that is operated by a cord, and small-diameter rollers at the side of the toprail attempt to reduce the friction of the cord where it enters and exits.
  • This is obtained in a construction according to the characterising part of Claim 1.
  • one end of the cord is caused to drive the shaft directly in one direction, and the other end of the cord to drive in the other direction on the first pulley, because the direction is changed by means of the second and third pulleys.
  • the particular advantage of this solution is that the two ends of the cord exit next to each other at the same height in the side of the top rail, and that the string is no where curved around a small radius of curvature with a support that creates friction.
  • An advantageous use of the invention is particular in that a direct pull on a first cord end is used on the fixed pulley for lifting of the Venetian blind or roller blind, and that an indirect pull on a second cord end via the first pulley is used for lowering. In this way, any friction will equalise the forces required for raising and lowering.
  • a housing 1 which contains a shaft 2 and two pulleys 3 and 4, around which are wrapped two ends 5 and 6 of a cord.
  • the cord is a ball chain, i.e. a thin and flexible cord with spheres cast around it at equal distances.
  • the housing 1 is fitted into a top rail which is not shown, which is provided with openings for the cord ends 5 and 6 next to each other.
  • the shaft 2 is connected to the further mechanism which acutates a roller blind, a folding blind, a Venetian blind or a similar screening device.
  • the pulley 3 is fitted non-rotatably to the shaft 2, and a pull on the end 5 of the cord hence causes rotation in one direction (in the figure counter-clockwise) of the shaft 2.
  • Fig. 2 the parts fitted into the housing are seen from behind, and it is seen that the ball chain has been placed around both pulleys as well as around a "reversing pulley" 7 fitted therebetween.
  • This reversing pulley has its axis perpendicular to the shaft 2 and serves to ensure that a pull in the end 6 of the cord is transmitted as a rotation in the opposite direction of the pulley 3 and hence the shaft 2.
  • a further function of the reversing pulley is to increase the amount of wrap around the pulley 3, which is important for the transmission of forces in case a thick cord without spheres is used for the actuation.
  • the pulley 4 is freely rotatable on the shaft 2. However, the friction may be further reduced and still further stability be obtained by an independent bearing for the pulley 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Laminated Bodies (AREA)
  • Catching Or Destruction (AREA)
  • Pulleys (AREA)
  • Noodles (AREA)

Claims (4)

  1. Mécanisme adapté a monter dans une profilé pour une store vénetien et constructions similaires, comprenant une corde opérationelle (5, 6), des poulies, une première (2) et une deuxième arbre et un carter (1), les bouts (5, 6) de ladite corde opérationelle sortant du mécanisme au même coté du carter (1), les bouts de la corde sortant de deux poulies (3, 4) du mécanisme,
    caractérisé en ce que ladite première arbre (2) est parallele au profilé, et que pendant l'opération agit directement sur ladite store vénetien et construction similaire, par lequel une première pouli (4) des deux poulies est monté de rotation libre sur la première arbre (2) et une deuxième pouli (3) des deux poulies est fixé a ladite première arbre (2), et en ce que le mécanisme en outre comprend une troisième pouli (7) de rotation libre monté entre lesdites deux poulies (3, 4) sur une deuxième arbre perpendiculaire a la première arbre (2), ladite deuxiéme arbre étant fixé dans le carter (1), dans lequel la corde opérationelle (5, 6) passe par la première (4), troisième (7) et en suite par la deuxième poulie.
  2. Mécanisme selon la revendication 1,
    caractérisé en ce qu'un palier de la première poulie (4) de libre rotation est fixé directement sur la première arbre (2).
  3. Mécanisme selon la revendication 1,
    caractérisé en ce qu'un palier de la première poulie (4) de libre rotation est fixé dans le carter (1) de la mécanisme.
  4. Utilisation d'une mécanisme selon quelconque des revendications précédents,
    caractérisé en ce qu'une traction directe en un premier bout (5) d'une corde est appliquée sur la poulie fixé (3) pour lever le store venétien ou roulteur, et qu'une traction indirecte en un deuxième bout (6) de la corde via la première poulie est utilisé pour descendre.
EP99900443A 1998-01-09 1999-01-11 Dispositif de cordon de tirage pour store venitien ou analogue Expired - Lifetime EP1045955B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK2198 1998-01-09
DK199800021A DK2198A (da) 1998-01-09 1998-01-09 Træksnorsindretning til persienner og lignende
PCT/DK1999/000013 WO1999037874A1 (fr) 1998-01-09 1999-01-11 Dispositif de cordon de tirage pour store venitien ou analogue

Publications (2)

Publication Number Publication Date
EP1045955A1 EP1045955A1 (fr) 2000-10-25
EP1045955B1 true EP1045955B1 (fr) 2004-12-15

Family

ID=8088853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99900443A Expired - Lifetime EP1045955B1 (fr) 1998-01-09 1999-01-11 Dispositif de cordon de tirage pour store venitien ou analogue

Country Status (7)

Country Link
EP (1) EP1045955B1 (fr)
AT (1) ATE285019T1 (fr)
AU (1) AU752194B2 (fr)
DE (1) DE69922632D1 (fr)
DK (1) DK2198A (fr)
NO (1) NO317007B1 (fr)
WO (1) WO1999037874A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2820453B1 (fr) * 2001-02-05 2003-09-19 Oxford Automotive Mecanismes E Dispositif d'entrainement de porte coulissante d'un vehicule automobile et vehicule equipe d'un tel dispositif
US20080121353A1 (en) * 2006-11-16 2008-05-29 Detmer Brandon J Manual roller shade having clutch mechanism, chain guide and universal mounting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1822318A (en) * 1931-01-09 1931-09-08 Russell James Gordon Tilting and locking device for venetian blinds
DE3509047A1 (de) * 1985-03-14 1986-09-18 Sunteca Sonnenschutztechnik Gmbh, 2850 Bremerhaven Jalousieantrieb mittels zugschnur

Also Published As

Publication number Publication date
AU752194B2 (en) 2002-09-12
NO317007B1 (no) 2004-07-19
ATE285019T1 (de) 2005-01-15
NO20003504L (no) 2000-07-07
DE69922632D1 (de) 2005-01-20
DK2198A (da) 1999-10-01
AU1960699A (en) 1999-08-09
EP1045955A1 (fr) 2000-10-25
WO1999037874A1 (fr) 1999-07-29
NO20003504D0 (no) 2000-07-07

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