EP0135518A1 - Dispositif d'entrainement pour stores a lamelles - Google Patents

Dispositif d'entrainement pour stores a lamelles

Info

Publication number
EP0135518A1
EP0135518A1 EP84900618A EP84900618A EP0135518A1 EP 0135518 A1 EP0135518 A1 EP 0135518A1 EP 84900618 A EP84900618 A EP 84900618A EP 84900618 A EP84900618 A EP 84900618A EP 0135518 A1 EP0135518 A1 EP 0135518A1
Authority
EP
European Patent Office
Prior art keywords
shaft
disc
disk
output
wedge
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Withdrawn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
EP84900618A
Other languages
German (de)
English (en)
Inventor
Hans Dipl.-Ing. Gross
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0135518A1 publication Critical patent/EP0135518A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • 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
    • E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
    • E06B9/361—Transmissions located at the end of the supporting rail
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S160/00—Flexible or portable closure, partition, or panel
    • Y10S160/90—Vertical type venetian blind
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19074—Single drive plural driven
    • Y10T74/19079—Parallel
    • Y10T74/19084—Spur

Definitions

  • the invention relates to a drive device for lamella curtains with slats which can be displaced transversely to their longitudinal axis and rotatable about their longitudinal axis and which have a transmission with a drive and two drives with different torque ment for a transport shaft causing the lamellar displacement and a turning shaft required for the turning of the lamellas, and in which the rotational movement of the output assigned to the turning shaft is limited by stops which are located on the same-axis, rotatably mounted parts which can be driven by the output for the turning shaft, wherein interacting Stops are arranged lying in the same circular motion curves.
  • Such a device is known from DE-PS 24 12 494.
  • the parts carrying the stops are provided by two coaxially arranged gear wheels with a slightly different number of teeth, which are driven by the same gear wheel driving them.
  • the stops are formed by a projection on one gear and by a groove on the other gear, in which the projection engages.
  • the known device is relatively complex to manufacture.
  • the invention has for its object to design a device of the type described so that its manufacture is simplified.
  • This object is achieved according to the invention in that the rotatably mounted parts are at least two disks of substantially the same diameter, which are arranged parallel to one another, and in that the one outermost disk is coupled to the output for the turning shaft, that the other outermost disk has a rotational path limited by a stop which is fixed relative to the housing of the drive device, and that in each case two immediately adjacent disks have the cooperating stops arranged in the same circular movement path.
  • the advantage of the invention is that the discs carrying the stops are very easy to manufacture.
  • the stops are realized in a particularly simple manner in accordance with one embodiment in that they are formed by a projection which is arranged on one edge of the disk, in particular on the outer edge of each disk and extends essentially at right angles to the plane of the disk and extends into the plane of the adjacent one Disk is enough.
  • the protrusion protrudes radially over the edge of the disc.
  • Said projection can also be arranged on an inner edge of the disk, namely if the disk is designed as an annular disk, as is expediently the case.
  • the stop is arranged on the outer edge, it does not restrict the angle of rotation of the disk as much as when it is arranged on the inner edge, and because it has lower torques when it is arranged on the outer edge, it even exists the possibility of making the projection somewhat weaker than if it is arranged on the inner edge.
  • the directly adjacent arrangement of the panes results in an extremely compact, space-saving construction. Special measures for holding the disks in their position are then not necessary, since the individual disks support one another. The frictional forces acting between the disks are expediently kept small.
  • the disk driven by the output for the turning shaft is positively connected to the output for the turning shaft by means of radial projections arranged in a central recess in the disk, at least after having overcome an idle path between the turning shaft and said disk. If such a free travel is provided, then if a certain free travel of, for example, 4.5 revolutions is required, the number of disks can possibly be reduced compared to an embodiment in which the outermost disk is connected to the output for the turning shaft in a rotationally fixed manner .
  • the described connection with the output for the reversing shaft can be implemented very easily.
  • the other outermost disc which is furthest away from the first outermost disc driven by the output for the turning shaft, must cooperate with any fixed stop which limits the rotation of this other outermost disc.
  • this stop is formed by a further coaxial disk which is anchored in the housing in a rotationally fixed manner and which has a stop which interacts with the adjacent disk.
  • the further coaxial disk can be designed differently, that is to say that when it is anchored in the housing, depending on its design, the stop interacting with the disk adjacent to it can assume a different position.
  • the position of the stop can be changed in such a way that the further disk is first produced with a plurality of projections, in particular by injection molding, and then all but one stop is removed.
  • the known arrangement described at the outset already has a slip clutch in the output for the transport shaft, the slip clutch having a first clutch part driven by the transmission, which is pressed under spring force against a drive element for the transport shaft.
  • a conical surface of one part of the slip clutch engages in a hollow conical surface of the other part.
  • the torque that can be absorbed by this slip clutch depends very much on the surface properties of the parts that are in engagement with one another. Slight changes in this surface condition, for example when grease reaches the conical surfaces, can result in a major change in the slip torque.
  • the two parts pressed against each other by the spring are connected to one another in a rotationally fixed manner by at least one wedge-shaped projection which engages in a correspondingly shaped wedge-shaped groove in the adjacent part that when a torque determined by the wedge angle and the coefficient of friction and the force of the spring is exceeded, the wedge slides out of the groove.
  • the advantage of the invention lies in the fact that the wedge shape of the projection makes it possible in a simple manner to transmit a considerable torque even under the assumption of a very low coefficient of friction between the interacting parts if the wedge angle is sufficiently acute.
  • Another advantage is that when the clutch slips through the disengagement of the wedge from the groove and in particular the subsequent re-engagement while the output for the transport shaft continues to be driven, this process being repeated, a noise is generated which draws attention to the malfunction of the device . Such a malfunction can occur, for example, when the end stop for the closed or open position of the Slat curtain is not yet in the correct position, or if the correct position is changed due to improper intervention.
  • a plurality of wedges and corresponding wedge-shaped grooves are preferably provided. As a result, the arrangement becomes symmetrical, which in particular prevents the possibility of inclination or tilting and jamming of the parts which interact with one another.
  • FIG. 2 is a view of the planet carrier in the viewing direction of part II in Fig. 3,
  • FIG. 3 is an end view of the planet carrier in the direction of arrow III in FIG. 2,
  • FIG. 4 and 5 is a view and a section through the leftmost disc in Fig. 1,
  • FIG. 6 and 7 is a view and a section through the following four disks in Fig. 1,
  • FIG. 8 and 9 are a view and a section through the rightmost disc in FIG. 1.
  • FIG. 1 The arrangement shown in Fig. 1 has two housing parts 1 and 2 which receive the transmission and are connected to each other in a manner not shown.
  • a drive wheel 5 adapted to the drive by a ball chain is used for.
  • a drive by means of an articulated arm crank or electric motors could also be provided.
  • a turning shaft 6 and a transport shaft 7 serve to drive the turning device or the transport device of a lamella curtain which can be fastened to the side of the housing facing away from the drive wheel 5 and which can be fastened in a rotationally fixed manner in axial recesses of the turning shaft 6 and the transport shaft 7.
  • the individual lamellae of the curtain are slidably and pivotably suspended by means of carriages which are guided in the hollow profile.
  • the slats are usually arranged hanging in the rail.
  • the turning device causes the individual slats to pivot about their longitudinal axis and the transport device causes the slats to move when the curtain is opened and closed in a guide transverse to their longitudinal axis.
  • a sun gear 8 is non-rotatably, namely integrally connected.
  • a planet gear carrier or basket 9 is rotatably mounted about the same axis, on which four planet gears 12 are rotatably mounted on bearing bolts and engage the sun gear 8.
  • the basket 9 is held at one end in that it engages in an axially extending recess 13 of the turning shaft 6.
  • This recess 13 has strip-like projections which engage in grooves 14 in the right part of the basket 9 in FIG. 2 and thereby bring about a rotationally fixed connection.
  • the basket 9 With its left end section in FIG. 1, the basket 9 is supported on a shoulder 14 of the drive wheel 5, which in turn is supported on an axle bolt 15 which is fixedly arranged on the housing part 1.
  • the right end of the sun gear 8 engages with an axle bolt 16 in a bearing bore of the basket 9.
  • the planet gears 12 are surrounded by an outer gear 20, the internal toothing of which engages with the planet gears.
  • the outer wheel 20 is in engagement with a toothed wheel 22 via an external toothing whose rotational movement is transmitted to the transport shaft 7.
  • a total of six disks are arranged from left to right in the illustration of FIG. 1, namely a first outermost disk 30, see FIGS. 4 and 5, then four disks 32, see. 6 and 7, and a further disc 34, cf. 8 and 9. All disks are essentially circular.
  • the first outermost disk 30 engages with three inner projections 36 in the grooves 14 of the wave-like part 25 of the basket 9 and is connected in a rotationally fixed manner to the basket 9 in this way.
  • the first outermost disk 30 has an outer projection 37, which extends to the right in the illustration of FIG. 1 into the plane of the adjacent pane 32.
  • the rightmost further disk 34 has a somewhat longer projection 40, which also points to the right in the view in FIG. 1 and engages in a recess 45 in the housing part 2 and is thereby arranged in the housing 1, 2 in a rotationally fixed manner.
  • the outer projections 37 and 38 each take up only a small circumferential angle, namely this circumferential angle of the projections 37 and 38 is approximately 13 °.
  • the outer projections protrude radially beyond the otherwise circular outer edge of the disks 30, 32, 34.
  • the free travel which is achieved by the arrangement of disks described in the device according to FIG. 1 is therefore five full revolutions minus 5 ⁇ 13 °, that is to say a total of 1735 °.
  • the disk 32 on the far right in FIG. 1 is the other outermost Disc in the sense of the claims.
  • the gearwheel 22 is formed by a compression spring 50 which is designed as a helical spring and which engages in a right-hand, central, annular recess 52 of the gearwheel 22 and is supported on a stop 54 which is connected to a connected shaft 56 is anchored, on which the gear 22 is rotatably mounted, moved to the right in the illustration of FIG. 1.
  • the left end of the shaft 56 is rotatably mounted in a bore 57 in the housing part 1.
  • the gear wheel 22 In its area on the right in FIG. 1, free of toothing, the gear wheel 22 has four radial, essentially V-shaped grooves 58 at an angular spacing of 90 °, into which V-shaped projections 60 of the transport shaft 7 engage.
  • the transport shaft 7 is supported on the housing part 2 by an annular shoulder 62.
  • the right end of the shaft 56 which is not visible in FIG. 1, is connected in one piece to the transport shaft 7. Because the toothed wheel 22 is pressed against the turning shaft 7 by spring force, a torque can be transmitted from the toothed wheel 22 to the transport shaft 7 via the projections 60 and the associated grooves 58.
  • the magnitude of the transmissible torque is determined by the force of the spring 50, the wedge angle of the wedge-shaped projection 60 and the material properties of the parts 22 and 7 made of plastic. Both the groove 58 and the projection 60 are not exactly wedge-shaped, but are rounded off in the region of the tip of the wedge in order to facilitate production and also to reduce wear.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Transmission Devices (AREA)
  • Blinds (AREA)

Abstract

Le dispositif pour l'entraînement de stores à lamelles, dont les lamelles peuvent pivoter autour de leur axe longitudinal et se déplacer perpendiculairement à cet axe, comprend un organe d'entraînement et deux prises de force ayant des couples différents, dont l'une est un arbre (7) provoquant la translation des lamelles et dont l'autre est un arbre (6) pour le pivotement des lamelles. La rotation de l'arbre de pivotement (6) et limitée par des butées fixées sur des organes coaxiaux entraînés par la prise de force pour l'arbre de pivotement (6). Les butées coopérantes parcourent la même trajectoire circulaire. Les organes coaxiaux rotatifs sont constitués d'au moins deux disques parallèles (30, 32) de diamètres sensiblement identiques. L'un des disques extrêmes est accouplé avec la prise de force pour l'arbre de pivotement (6), tandis que l'autre disque extrême présente une rotation qui est limitée par une butée fixe par rapport au bâti du dispositif. Deux disques voisins sont pourvus de butées coopérantes (37, 38) qui se meuvent dans la même trajectoire circulaire. Ainsi, on obtient une construction simple et compacte.
EP84900618A 1983-02-24 1984-02-04 Dispositif d'entrainement pour stores a lamelles Withdrawn EP0135518A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3306407 1983-02-24
DE19833306407 DE3306407A1 (de) 1983-02-24 1983-02-24 Antriebsvorrichtung fuer lamellenvorhaenge

Publications (1)

Publication Number Publication Date
EP0135518A1 true EP0135518A1 (fr) 1985-04-03

Family

ID=6191684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84900618A Withdrawn EP0135518A1 (fr) 1983-02-24 1984-02-04 Dispositif d'entrainement pour stores a lamelles

Country Status (4)

Country Link
US (1) US4557159A (fr)
EP (1) EP0135518A1 (fr)
DE (1) DE3306407A1 (fr)
WO (2) WO1984003327A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196043A (en) * 1986-10-09 1988-04-20 Chang A Shen Vertical blinds
GB2246155A (en) * 1990-07-18 1992-01-22 Hunter Douglas Ind Bv An operating mechanism for a blind or shielding device.
US5584059A (en) * 1993-06-30 1996-12-10 Motorola, Inc. DC offset reduction in a zero-if transmitter
DK23095A (da) * 1995-03-06 1996-09-07 Rasmussen Kann Ind As Drivindretning til afskærmningsarrangement
US5875829A (en) * 1997-08-23 1999-03-02 Chou; Tser-Wen Bearing structure for vertical blinds and roller shades
CA2634306C (fr) 1999-07-14 2010-11-16 Hunter Douglas Industries B.V. Mecanisme d'entrainement et traverse de sommet pour store
JP4140182B2 (ja) * 2000-09-19 2008-08-27 株式会社ジェイテクト 遊星歯車装置
US6863111B1 (en) 2000-10-03 2005-03-08 Tser-Wen Chou Positive engagement end stop for window covering systems
US20060108076A1 (en) * 2004-11-19 2006-05-25 Shien-Te Huang Rotor brake mechanism for curtain linkage system
US7913738B2 (en) * 2005-09-02 2011-03-29 Hunter Douglas Inc. Selective tilting for blinds—variable radius wrap double pitch
BR112014020913B1 (pt) 2012-02-27 2021-02-17 Hunter Douglas Industries B.V. montagem de inclinação para cortina e método de controle de escadas de inclinaçâo
US11459822B2 (en) * 2019-02-12 2022-10-04 Hunter Douglas Inc. Tilt-control assembly for use with an operating mechanism in an architectural-structure covering

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Publication number Priority date Publication date Assignee Title
FR18864E (fr) * 1906-06-30 1914-07-27 Carburateur Zenith Cessionnair Carburateur pour moteurs à explosions
US1203956A (en) * 1913-05-02 1916-11-07 Ethel L Noble Brake mechanism for vehicles.
US1339052A (en) * 1917-11-09 1920-05-04 Sperry Gyroscope Co Ltd Stop device
US2330734A (en) * 1941-12-31 1943-09-28 Deere & Co Slip clutch
US2644439A (en) * 1948-12-27 1953-07-07 Bayerische Motoren Werke Ag Change speed and starting gearing for motorcycles
GB1159635A (en) * 1967-02-21 1969-07-30 Adolf Stoever Improvements in or relating to Collapsible Louvre Sun-Blinds or like devices
US3434356A (en) * 1967-04-26 1969-03-25 Bendix Corp Shaft position limiting device
US3789905A (en) * 1971-08-22 1974-02-05 Nichi Bei Blind Kogyo Kk Vertical type venetian blind
DE2161117A1 (de) * 1971-12-09 1973-06-14 Herbert Marder Antriebsvorrichtung fuer lamellenvorhaenge od.dgl
DE2637067A1 (de) * 1976-08-18 1978-02-23 August Bolinger Lamellenjalousie mit lotrecht angeordneten lamellen
DE2853763A1 (de) * 1978-12-13 1980-06-26 Willy Bruse Vertikaljalousie mit um ihre lotrechte achse schwenkbaren sowie seitlich verschiebbaren lamellen
DE2913886C2 (de) * 1979-04-06 1983-07-14 Hunter Douglas Industries B.V., 3008 Rotterdam Lamellenjalousie mit vertikalen Lamellen
DE2913887A1 (de) * 1979-04-06 1980-10-23 Hunter Douglas Ind Bv Lamellenjalousie mit vertikalen lamellen
FR2454510A1 (fr) * 1979-04-18 1980-11-14 Manducher Sa Mecanisme de blocage en fin de course d'un element rotatif et son application a un volet rotatif retractable
US4272973A (en) * 1979-04-26 1981-06-16 Fu Tsai Lee Socket joint for torque wrench

Non-Patent Citations (1)

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Title
See references of WO8403327A1 *

Also Published As

Publication number Publication date
US4557159A (en) 1985-12-10
WO1984003327A1 (fr) 1984-08-30
DE3306407A1 (de) 1984-08-30
WO1984003328A1 (fr) 1984-08-30

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