EP0190626A2 - Dispositif de commande de l'axe basculant d'un store vénitien - Google Patents

Dispositif de commande de l'axe basculant d'un store vénitien Download PDF

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Publication number
EP0190626A2
EP0190626A2 EP86100979A EP86100979A EP0190626A2 EP 0190626 A2 EP0190626 A2 EP 0190626A2 EP 86100979 A EP86100979 A EP 86100979A EP 86100979 A EP86100979 A EP 86100979A EP 0190626 A2 EP0190626 A2 EP 0190626A2
Authority
EP
European Patent Office
Prior art keywords
wrap spring
ring element
turning device
spring
ring
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
EP86100979A
Other languages
German (de)
English (en)
Other versions
EP0190626A3 (en
EP0190626B1 (fr
Inventor
Petrus Johannes Hennequin
Dirk Alxander Ploeg
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.)
Hunter Douglas Industries BV
Original Assignee
Hunter Douglas Industries BV
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 Hunter Douglas Industries BV filed Critical Hunter Douglas Industries BV
Priority to AT86100979T priority Critical patent/ATE48886T1/de
Publication of EP0190626A2 publication Critical patent/EP0190626A2/fr
Publication of EP0190626A3 publication Critical patent/EP0190626A3/de
Application granted granted Critical
Publication of EP0190626B1 publication Critical patent/EP0190626B1/fr
Expired 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
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E06B9/307—Details of tilting bars and their operation

Definitions

  • the invention relates to a turning device for a louvre blind, with a drive shaft surrounding, on this directly or indirectly via a non-rotatable coupling sleeve, at least under load, frictionally mounted wrap spring, each with an end turn of the wrap spring bent outwards, with a for holding the lamellae serving conductors are connected, and with fixed counter-stops, on which one or the other wrap spring end comes to rest when the drive shaft rotates and brings about a reduction in the frictional engagement.
  • the wrap spring is carried along by the rotary movement of the drive shaft until one of the two wrap spring ends bears against the associated counterstop and a driving torque still exerted on the wrap spring causes the wrap spring to open, ie to increase the diameter.
  • a driving torque still exerted on the wrap spring causes the wrap spring to open, ie to increase the diameter.
  • the frictional engagement between the wrap spring and the drive shaft or the coupling sleeve is reduced to a very small value.
  • one end generally engages one end of a conductor consisting of a cord, a chain or a band and used to carry the slats.
  • the conductor ends are designed as closed eyelets and the wrap spring ends as hooks into which the eyelets can be hung.
  • Another turning device is also known in which the conductor ends are not attached directly to the ends of the wrap spring. Rather, a ring element is associated with each wrap spring end, which surrounds the wrap spring in the end region and which receives the wrap spring end bent radially outwards in a bore. At a suitable point on its circumference, the ring element has a stop projecting radially outwards, which serves both for cooperation with the counter-stop and for fastening the associated conductor end.
  • the ring element is therefore switched into the force transmission path between the wrap spring end and the conductor. While it can essentially prevent permanent wrap spring deformation, but the disadvantage of a relatively large effort for the manufacture or assembly must be accepted. This effort is partly due to the fact that it is relatively difficult to insert a wrap spring end bent radially outwards from the inside of the ring element into a radial bore located therein. On the other hand, the attachment of a conductor end is carried out in such a way that an approximately tangential bore is provided in the stop, through which the conductor end must be passed in a relatively cumbersome manner in order to be able to be subsequently locked by means of a knot or in another suitable manner. A further disadvantage is that when each ring element is installed, the position of the ring element must be adapted to the position of the wrap spring end on the one hand and the counter-stop on the other.
  • the end windings each have a ring element which can be taken through one of the wrap spring ends in the direction of rotation and is not involved in the force transmission between wrap spring and conductor and which is provided at one point on its circumference with a recess penetrated by the wrap spring end, and that the ring element surrounds the respective end turn of the wrap spring with such a game that without interference tiung the spring function a permanent deformation resulting in the wrap spring deflection is prevented.
  • the ring element is now not involved in the power transmission, so that its training or dimensioning must be based solely on the existing conditions for the fulfillment of the support function.
  • the recess in the ring element according to the invention need not be designed as a narrow bore, because the ring element is not involved in the power transmission between the wrap spring and the conductor.
  • a correspondingly larger dimensioning of the recess is sufficient for the fulfillment of the support function and at the same time facilitates the insertion of the wrap spring end into the recess, if the recess is not open at least on one side according to an embodiment of the invention to be described later.
  • the rotational position of the ring element adjusts itself automatically as a function of the respective rotational movement of the associated wrap spring end and that, on the one hand, direct support of the spring end bent radially outwards and also a support of the spring coils surrounded by the ring element in one takes place in such a way that they cannot expand radially outwards.
  • the spring end first in the radial direction to the loop spring circumference and then bent back in the circumferential direction and that the circumferential part of the spring end is overlapped on its outside by the ring element, preferably by means of a web.
  • the part of the ring element in question can be appropriately recessed to accommodate the part which is bent back in the circumferential direction, or else can be provided with a web which may also protrude from the outer circumference of the ring element.
  • the assembly of a ring element on the wrap spring is, as already mentioned, simplified according to the invention in that the recess is open at least on one end face of the ring element.
  • the ring element can therefore be pushed in the axial direction onto the side of the wrap spring facing it.
  • the ring element does not need to be closed over the entire circumference, because the recess can also be formed by a slot that is continuous in the axial direction.
  • a ring element on one side has an inwardly extending ring flange and is supported by the ring flange next to the wrap spring on the drive shaft or a coupling sleeve surrounding it without rotation. Since the ring element is intended to surround the wrap spring without rotation, play of a certain minimum size will always have to be provided between the wrap spring circumference and the ring element. With the help of the ring flange a more stable mounting of the ring element can be achieved.
  • the ring element has a radially outwardly projecting flange on its axially outwardly facing side. Under certain operating conditions, this can serve as a guide for the conductors attached to the wrap spring ends.
  • the Rir.ilemente extend to the wrap spring area lying between the spring ends and are supported on each other.
  • the ring elements are guided or locked in one axial direction. This measure is particularly advantageous if ring elements provided with an annular flange are used, since the annular flange then respectively locks or supports in the other axial direction.
  • one of the end faces of the ring element facing one another is provided with a groove and the other end side is provided with one or more guide elements engaging in the groove. This ensures that the ring elements maintain a coaxial position with one another, the freedom of rotation of course not being impaired by the engagement of the guide elements in the groove.
  • the guide elements can be formed by an annular spring.
  • the blind drive has a housing 10 in which a hub 11 is rotatably mounted and can be driven by a drive shaft, not shown here.
  • the hub 11 has a winding spool 12, which is used to wind up a lifting belt.
  • a coupling sleeve 14 which is connected in a rotationally fixed manner.
  • a wrap spring 15 is placed thereon by frictional engagement, the end turns of which are located on the end faces are designated by the reference numerals 16 and 17.
  • the latter have wrap spring ends 16a and 17a which are bent radially outward and formed into an eyelet, which are each formed from a part which is bent back radially in the direction of the wrap spring circumference and then angled again in the circumferential direction. This part is designated by the reference number 18.
  • ring flange 21 is integrally formed on the respective ring element 19 and 20 and serves, as Fig.l shows, for rotational support on the coupling sleeve 14 such that between the outer periphery of the wrap spring 15 and the inside of the ring elements 19 and 20 still at least little game remains.
  • flanges 28, which are also formed also extend outwards and can serve as a guide for a conductor fastened to the wrap spring ends 16a and 17a.
  • the ring elements 19 and 20 each have a recess 22 through which the wrap spring ends 16a and 17a pass.
  • a web 23 is located above each part 18 of the wrap spring ends 16a and 17a, which is bent in the circumferential direction, and engages over that part of the recess 22 in which the bent part 18 of a wrap spring end 16a and 17a is located.
  • the web 23 is in each case on a diameter which is somewhat larger than the outer diameter of the actual ring element 19 or 20 and will generally consist of one piece with this.
  • Figure 2 shows the wrap spring 15 in the rest position.
  • the wrap spring 15 can be taken along in this direction of rotation until its wrap spring end 17a abuts a counter stop 24.
  • the loop-forming end 17a like of course the Schlina spring end 16a and, like the associated winding threads 16 and 17 in all conceivable operating positions, is supported by the ring element 1 or 20, This is particularly true for the broken lines in figure 2 illustrated end position at the counter-stop 24.
  • One of the wrap spring 17a secured L pus end 25 can certainly receive a high overload, which is overlapped by the bridge 23 portion 18 R'a not in the radially outward direction emigrate can and thus the wrap spring end 17a, the end turn 17 and also the subsequent turns of the wrap spring 15 are protected against deflection.
  • the ring elements 19 and 20 each extend to the central region of the wrap spring 15 and have on their mutually facing end faces a groove 26 or a spring 27 engaging in these, which are dimensioned such that a relative rotatability between the ring elements 19 and 20 remains guaranteed .
  • the ring elements 19 and 20 receive additional guidance or stabilization.
  • a corresponding dimension of the other parts of the drive prevents the ring elements 19 and 20 from being able to be moved apart in the axial direction.
  • the part 18 angled in the circumferential direction can also be missing at the wrap spring ends 16a and 17a.
  • the web 23 is then also unnecessary.
  • the wrap spring end is supported by the fact that its part bent back in the radial direction bears against the inside of the web or, if this is missing, the inside of the recess in the ring element which is correspondingly smaller in the circumferential direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Earth Drilling (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Steering Controls (AREA)
  • Mechanical Operated Clutches (AREA)
EP86100979A 1985-02-05 1986-01-24 Dispositif de commande de l'axe basculant d'un store vénitien Expired EP0190626B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100979T ATE48886T1 (de) 1985-02-05 1986-01-24 Wendevorrichtung fuer eine lamellenjalousie.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8503040U DE8503040U1 (de) 1985-02-05 1985-02-05 Wendevorrichtung für eine Lamellenjalousie
DE8503040U 1985-02-05

Publications (3)

Publication Number Publication Date
EP0190626A2 true EP0190626A2 (fr) 1986-08-13
EP0190626A3 EP0190626A3 (en) 1987-06-03
EP0190626B1 EP0190626B1 (fr) 1989-12-20

Family

ID=6777056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100979A Expired EP0190626B1 (fr) 1985-02-05 1986-01-24 Dispositif de commande de l'axe basculant d'un store vénitien

Country Status (4)

Country Link
EP (1) EP0190626B1 (fr)
AT (1) ATE48886T1 (fr)
DE (2) DE8503040U1 (fr)
DK (1) DK41686A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996027727A1 (fr) * 1995-03-06 1996-09-12 Norbert Marocco Commande combinee d'inclinaison et de levage pour couvre-fenetres
WO1999043965A1 (fr) * 1998-02-27 1999-09-02 Ford Global Technologies, Inc. Accouplement conformable
EP1052365A2 (fr) 1999-05-11 2000-11-15 Hunter Douglas Industries B.V. Dispositif d'entraínement pour un store vénitien
US11480479B2 (en) * 2019-02-04 2022-10-25 The Board Of Trustees Of The University Of Illinois Microscale thermocouple probe for intracellular temperature measurements

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH273325A (de) * 1950-04-19 1951-02-15 Ag Rolladenfabrik A Griesser Mechanische Aufzieh- und Arretiervorrichtung an einem Lamellenstore.
CH400817A (de) * 1963-05-24 1965-10-15 Griesser Ag Raff-Lamellenstore
NL148375C (nl) * 1966-07-15 1976-06-15 Hunter Douglas Lamellenjaloezie.
DE2400643C2 (de) * 1974-01-08 1983-12-15 Dieter 7340 Geislingen Rau Auf einer Betätigungswelle einer Lamellenjalousie anzuordnende, mit Leiterschnüren einer Schnurleiter für die Lamellen zusammenwirkenden Wendevorrichtung
DE2726452A1 (de) * 1977-06-11 1979-05-23 Hunter Douglas Ind Bv Antrieb fuer eine lamellenjalousie
DE3037759A1 (de) * 1980-10-06 1982-11-04 Emil Schenker AG, 5012 Schönenwerd Rafflamellenstore

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996027727A1 (fr) * 1995-03-06 1996-09-12 Norbert Marocco Commande combinee d'inclinaison et de levage pour couvre-fenetres
WO1999043965A1 (fr) * 1998-02-27 1999-09-02 Ford Global Technologies, Inc. Accouplement conformable
EP1052365A2 (fr) 1999-05-11 2000-11-15 Hunter Douglas Industries B.V. Dispositif d'entraínement pour un store vénitien
EP1052365A3 (fr) * 1999-05-11 2000-12-06 Hunter Douglas Industries B.V. Dispositif d'entraínement pour un store vénitien
US11480479B2 (en) * 2019-02-04 2022-10-25 The Board Of Trustees Of The University Of Illinois Microscale thermocouple probe for intracellular temperature measurements

Also Published As

Publication number Publication date
EP0190626A3 (en) 1987-06-03
DE3667692D1 (de) 1990-01-25
EP0190626B1 (fr) 1989-12-20
ATE48886T1 (de) 1990-01-15
DK41686A (da) 1986-08-06
DE8503040U1 (de) 1985-06-20
DK41686D0 (da) 1986-01-28

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