EP0050677A1 - Store vénitien - Google Patents

Store vénitien Download PDF

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Publication number
EP0050677A1
EP0050677A1 EP80106536A EP80106536A EP0050677A1 EP 0050677 A1 EP0050677 A1 EP 0050677A1 EP 80106536 A EP80106536 A EP 80106536A EP 80106536 A EP80106536 A EP 80106536A EP 0050677 A1 EP0050677 A1 EP 0050677A1
Authority
EP
European Patent Office
Prior art keywords
slats
drum
stop
pawls
drive shaft
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
EP80106536A
Other languages
German (de)
English (en)
Other versions
EP0050677B1 (fr
Inventor
Paul Frei
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 AG
Original Assignee
Griesser 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 AG filed Critical Griesser AG
Priority to AT80106536T priority Critical patent/ATE8424T1/de
Publication of EP0050677A1 publication Critical patent/EP0050677A1/fr
Application granted granted Critical
Publication of EP0050677B1 publication Critical patent/EP0050677B1/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
    • E06B9/32—Operating, guiding, or securing devices therefor
    • 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 Roman blind, the drive shaft of which is mounted in a bearing housing and carries an elevator and adjusting device, with winding drums for elevator belts engaging on a lower end rail and with coupling supports for adjusting belts, on which support members for the lamellas engage.
  • slat blinds of this type are usually designed in such a way that rotating the drive shaft in the sense of lifting the slats (shirring) causes it to pivot into a generally approximately horizontal open position, while rotating the drive shaft in the sense of lowering the slats, pivoting it into between Open and closed position, mostly referred to as the working position, causes an intermediate position (eg with a 45 ° inclination); the slats (approximate vertical position) should only be able to close when the store is completely lowered.
  • Known designs of this type are usually quite complicated and therefore prone to failure.
  • the adjustment straps form a non-positive slip clutch with the coupling supports, it can in the case of completely or partially open slats, for example under the influence of wind, undesired adjustment of the slats easily occurs.
  • the arrangement is also such that the elevator belt releases a spring-loaded coupling member from the winding drum when the last winding of the belt ends, which is intended to pivot the slats into the closed position.
  • the known designs of this type have the disadvantage that, for example in the case of slats standing on an obstacle, any loosening of the elevator belt on the drum leads to an undesired premature release of the coupling member. Even when the store is driven by a motor, a mostly unavoidable overrun of the motor can lead to an overturning of the clutch element which is in the active position, which can result in damage.
  • the present invention aims to provide a roman blind of the type mentioned, in which the mentioned disadvantages of the known constructions are avoided, whereby this is to be achieved by means that are particularly simple in manufacture, assembly, handling and function.
  • the roman blinds according to the invention are characterized in that, on the adjusting bands on the one hand and on bearing supports in the support housing on the other hand, paired stops are provided which, when the store is raised, cause the slats to pivot> into the open position and when the store is lowered into one Allow predetermined inclination, the stop provided when lowering the store on the rising adjusting belt strand, in cooperation with a fixed stop on the bearing support of the support housing, limiting the predetermined inclined position of the slats when the store is lowered by spring-loaded, radially released from the unwound elevator belt and with the drive shaft Rotationally connected pawls can be brought out of engagement with the fixed stop for the purpose of closing the slats, while a further stop provided on the adjusting band in
  • a restoring element is arranged on the bearing housing in the circumferential path of the pawl in the operative position, which, after reaching the slat closed position, ensures that the pawl, even if the drive shaft continues to rotate (e.g. overrun with a motor drive), even without a winding belt winding up their ineffective position is moved back.
  • a restoring device is also advantageous if, for example, when the store stands up when lowering on an obstacle, the windings of the still wound winding belt become so loose, that the jack is brought into its operative position at an inappropriate time.
  • the drawn Roman blinds has a usual support housing 1 designed as a U-profile that is open at the bottom.
  • Bearing supports 2 are fixed at points of this support housing 1 that are axially spaced.
  • These bearing supports 2 are each formed by two transverse walls 2a which are connected to one another by base webs 2a, 2b.
  • Cylindrical end parts 3a of the hub of a winding drum 3 are mounted in upwardly open bearing cutouts 2d of the transverse walls 2c, which in turn sits firmly on the drive shaft 4 having a hexagonal cross section.
  • the drive shaft 4 can be driven in the usual manner, not shown, either via a gear, by a hand crank or by an electric motor.
  • the winding channel of the drum 3 is covered by a cover web 5 fixed to the support housing in order to prevent undesired escaping of tape turns to avoid textile elevator belt 6.
  • This elevator belt 6 is fixed on the drum core 3b by means of a conventional holding pin 7.
  • the lateral hub sections of the winding drum 3 are provided with a toothing 8 formed by longitudinal grooves, the cylindrical outer circumference of which in the area of the transverse walls 2c each serves as a textile adjustment band 9 to form a slip clutch.
  • the inner portions of the hub sections, which are not occupied by the adjustment bands 9, are covered by reset curves 10b fixed to cover webs 10a, the function of which will be explained in more detail below.
  • a pin 11 projecting on both sides beyond these disks 3c is mounted in a groove 11a of the winding drum 3 which is provided in the drum core 3b and is guided radially into the drum disks 3c delimiting the winding channel.
  • a leaf spring 12 which loads the pin radially outward is provided between pin 11 and groove base. The arrangement is such that when the elevator belt 6 is unwound, the pin 11 lies flush with the bottom of the winding channel in the groove 11a.
  • the part of the disks 3c of the drum 3 which delimits the winding channel has the groove 11a and is thickened.
  • Each of these disc sections is provided with radial recesses 13 with a rectangular cross section, which are aligned with the groove 11a approximately to the bottom of the longitudinal grooves of the hub sections of the drum 3.
  • the length of the pawl 14 is selected such that it is completely sunk into the relevant pane section when the elevator belt 6 is wound up (FIGS. 2, 3 ), on the other hand, when the elevator belt 6 is unwound (by means of the spring-loaded pin 11) protrudes beyond the circumference of the window (Fig. 1,4,5).
  • the adjusting bands 9 placed over the two hub sections of the drum 3 provided with the toothing 8 are each connected at their ends by a connecting plate 15.
  • On these two end plates 15 are expedient, as drawn, by means of chain pieces 16 which, e.g. suspension members 17 formed by cords for the slats 18.
  • chain pieces 16 which, e.g. suspension members 17 formed by cords for the slats 18.
  • a driving web 19 connecting them is fixed, which is intended for cooperation on the one hand with stop tabs 20 bent out of the transverse walls 2c and on the other hand with the pawls 14.
  • a securing cam 21 is fixed on the inside of each of the two adjustment bands and is intended to interact with the toothing 8 of the associated hub section of the drum 3.
  • the base web 2a is provided on both sides and the base web 2b on the inside with crimped edges which serve as sliding guides for the adjustment bands 9 and the elevator band 6; on the underside of the transverse walls 2c, stop tabs 22 are also provided in the area of the bottom web 2a for interacting with the connecting plate 15 connecting the adjustment straps 9 on the relevant outside store side.
  • the mode of operation of the Roman blinds described here is as follows: Assume that the blind parts are in the lever position shown in FIG. 2, ie the drive shaft 4 is rotated clockwise and the elevator belt 6 is wound by at least one full turn. On the one hand, the elevator belt 6 has pulled the pawls 14 into the disks 3c via the pin 11, while on the other hand the adjusting belts 9, which are carried clockwise by the support sections of the drum hub, assume a position in which the slats 18 are pivoted into their open position, ie with an inclination of the slat plane to the horizontal of about 30 °, the slat leading edge is slightly higher than the trailing edge.
  • the securing cam 21 is located directly at the end of the inner run of the adjusting straps 9 running from the toothed hub section. If the slats 18 be loaded, for example by the influence of wind, in the sense of closing (pivoting in FIG. 2 counterclockwise) , this would immediately result in the safety cam 21 engaging in the nearest gap in the toothing 8 of the hub section. Since the take-up drum 3 is non-rotatably seated on the drive shaft 4 which is self-locking (through gear or motor), further movement of the adjustment belts 9 in the sense of closing the slats 18 under the influence of wind is impossible.
  • the safety cams 21, which, thanks to their engagement in the gaps in the toothing 8, support the correct entrainment of the adjusting straps 9, have passed through the hub sections.
  • the slanted position 18 of the slats 18 (expediently about 45 ° to the horizontal) determined by striking the driving web 19 against the stop tab 20 is reached, as can be seen in FIG. 3, the securing cams 2l lie directly in front of the toothed hub sections of the winding drum 3
  • Driver web 19 and securing cams 21, like the slats 18, maintain this position until the store is almost completely lowered.
  • the securing cams 21 prevent the slats 18 from pivoting back in the open position, for example due to the influence of wind, when the drive shaft 4 is at a standstill.
  • the elevator belt 6 In this lowered position of the store with slanted slats 18, the elevator belt 6 is wound with one last turn around the drum core 3b; this winding tensioned under the weight of the store holds the pin 11 with its pawls 14 against the action of the leaf spring 12 in its radially inner end position, in which the pawls 14 are completely retracted into the disks 3c. If the slats 18 are now to be closed completely (FIG. 4), the elevator belt 6 is completely unwound by further rotating the drive shaft 4 in the (counterclockwise) sense of lowering the store. As a result, the pin 11 is released and pressed radially outward by the leaf spring 12 in the recess 11a.
  • the pawls 14 are, as can be seen in FIG. 5, above the edge of the disks 3c before. As the drive shaft 4 continues to rotate, these pawls 14 press the carrier web 19 out of engagement with the stop flap 2o, while at the same time the strand of the adjusting straps 9 carrying the rear carrying cord 17, as shown in FIG Carrying cords 17 and thus closing the slats 18 results. If it is a store with an articulated crank drive of the drive shaft 4, an end stop (not shown) can be provided in the support housing 1, which prevents the end position of the driver web 19 given by the closed position of the slats 18 from being over-tightened.
  • the store described thus not only enables the desired slat positions to be reached and maintained correctly, but also ensures that the slats are properly secured against the effects of wind, namely, thanks to the cams 21 interacting with the toothing 8, in any slat position possible between the open position and the predetermined inclined position.
  • the closing of the slats e.g. for the purpose of darkening the room, thanks to the positive connection between the carrier web 19 and the pawl 14 (in contrast to the frictional connection by means of a slip clutch), while faults or damage due to undesired action of this positive connection are excluded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Temperature-Responsive Valves (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Finger-Pressure Massage (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Tents Or Canopies (AREA)
EP80106536A 1980-01-24 1980-10-24 Store vénitien Expired EP0050677B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80106536T ATE8424T1 (de) 1980-01-24 1980-10-24 Rafflamellenstore.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH559/80 1980-01-24
CH55980A CH644669A5 (de) 1980-01-24 1980-01-24 Rafflamellenstore.

Publications (2)

Publication Number Publication Date
EP0050677A1 true EP0050677A1 (fr) 1982-05-05
EP0050677B1 EP0050677B1 (fr) 1984-07-11

Family

ID=4189815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106536A Expired EP0050677B1 (fr) 1980-01-24 1980-10-24 Store vénitien

Country Status (8)

Country Link
US (1) US4334572A (fr)
EP (1) EP0050677B1 (fr)
JP (1) JPS56108487A (fr)
AT (1) ATE8424T1 (fr)
CH (1) CH644669A5 (fr)
DE (1) DE3068545D1 (fr)
DK (1) DK32581A (fr)
ES (1) ES8204040A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0500499A1 (fr) * 1991-02-22 1992-08-26 Somfy Store vénitien

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE65824T1 (de) * 1987-12-21 1991-08-15 Griesser Ag Rafflamellenstore.
GB2213855A (en) * 1987-12-22 1989-08-23 Raymond John Luget Window blind
US6116323A (en) * 1999-06-14 2000-09-12 Huang; Shien-Te Dual function dragging device for curtain
US6527034B1 (en) * 2001-08-30 2003-03-04 Tai-Ping Liu Slat-positioning drum for a venetian blind
US20060137831A1 (en) * 2004-12-29 2006-06-29 Henry Lin Winding mechanism of blind
US20080304947A1 (en) * 2007-06-11 2008-12-11 Stout Kenneth A Cleanout system for a reciprocating slat conveyor
US20100319859A1 (en) * 2009-06-23 2010-12-23 Taihao Knitting Belt Co., Ltd. Ladder cord lattice for window blinds
AU2012101508A4 (en) * 2012-10-04 2012-11-08 Acmeda Pty Ltd Spindle cover
TWI564468B (zh) * 2014-11-17 2017-01-01 德侑股份有限公司 窗簾及其致動系統

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE145464C (fr) *
DE953501C (de) * 1951-09-27 1956-11-29 Rolladenfabrik A Griesser A G Lamellenstore
AT301142B (de) * 1970-03-11 1972-08-25 Erste Oesterreichische Metall Wendevorrichtung bei Lamellen-Jalousien

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE13376C (de) * J. EIGEL in Cöln Kork- und Füllmaschine für moussirende Flüssigkeiten
US2381060A (en) * 1944-05-11 1945-08-07 Lewis I Kahn Venetian blind structure
US2723010A (en) * 1952-10-23 1955-11-08 Stelmack Stanley Hill holder and safety brake
CH400817A (de) * 1963-05-24 1965-10-15 Griesser Ag Raff-Lamellenstore
DE1683177A1 (de) * 1965-12-16 1969-09-18 Lageson Per Stephan Kordelantriebsvorrichtung fuer Jalousien mit Lamellen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE145464C (fr) *
DE953501C (de) * 1951-09-27 1956-11-29 Rolladenfabrik A Griesser A G Lamellenstore
AT301142B (de) * 1970-03-11 1972-08-25 Erste Oesterreichische Metall Wendevorrichtung bei Lamellen-Jalousien

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0500499A1 (fr) * 1991-02-22 1992-08-26 Somfy Store vénitien
FR2673232A1 (fr) * 1991-02-22 1992-08-28 Somfy Store venitien.

Also Published As

Publication number Publication date
EP0050677B1 (fr) 1984-07-11
ES498783A0 (es) 1982-04-01
DK32581A (da) 1981-07-25
CH644669A5 (de) 1984-08-15
DE3068545D1 (en) 1984-08-16
US4334572A (en) 1982-06-15
ATE8424T1 (de) 1984-07-15
ES8204040A1 (es) 1982-04-01
JPS6357595B2 (fr) 1988-11-11
JPS56108487A (en) 1981-08-28

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