EP0210381B1 - Dispositif de positionnement de rideau pour un store à rouleau - Google Patents

Dispositif de positionnement de rideau pour un store à rouleau Download PDF

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Publication number
EP0210381B1
EP0210381B1 EP86107630A EP86107630A EP0210381B1 EP 0210381 B1 EP0210381 B1 EP 0210381B1 EP 86107630 A EP86107630 A EP 86107630A EP 86107630 A EP86107630 A EP 86107630A EP 0210381 B1 EP0210381 B1 EP 0210381B1
Authority
EP
European Patent Office
Prior art keywords
screw
screen
roll
spring
nut
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
Application number
EP86107630A
Other languages
German (de)
English (en)
Other versions
EP0210381A2 (fr
EP0210381A3 (en
Inventor
Yoshihiro Shoji
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.)
Tosoh Corp
Original Assignee
Toso KK
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 Toso KK filed Critical Toso KK
Priority to AT86107630T priority Critical patent/ATE48884T1/de
Publication of EP0210381A2 publication Critical patent/EP0210381A2/fr
Publication of EP0210381A3 publication Critical patent/EP0210381A3/en
Application granted granted Critical
Publication of EP0210381B1 publication Critical patent/EP0210381B1/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
    • E06B9/56—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
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • 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
    • E06B9/60—Spring drums operated only by closure members
    • 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
    • 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
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809—Control
    • E06B2009/6872—Control using counters to determine shutter position
    • E06B2009/6881—Mechanical counters

Definitions

  • the invention relates to a screen-positioning device for use in a roll blind of the type defined in the preamble of Claim 1.
  • the device as disclosed by JP Y 58-21919 allows the spring-motor to roll up the screen to a predetermined height and stop the same without shock when the screen is released. It comprises a screw-bolt coaxially connected to the free end of the fixed shaft, a screw-nut mounted on the screw-bolt for rotation with the screen-roll, and a stopper attached to the screw-bolt to prevent a further axial movement of the screw-nut toward the stopper or rotation of the screen-roll.
  • the stopper is composed of a first disc secured to the screw-bolt, a second disc axially movably but non-rotatably mounted on the screw-bolt to catch the screw-nut, and a plurality of belleville springs interposed between the first and second discs.
  • the known device has disadvantages one of which is that the screen is somewhat heavy to be lowered from the roll-up height. The reason for this is that the second non-rotatable disc frictionally resists the rotation of the screw-nut when the screen is lowered.
  • Another disadvantage is that it is not easy to adjust the axial position of the screw-nut or roll-up height of the screen, because the screw-nut can not be adjusted unless the screen-roll is removed from the brackets. In the case of a plurality of parallel roll blinds, it is impossible to raise all the screen-ends in a line without many trials each needing removal of the screen-roll from the brackets.
  • the invention as claimed is intended to provide a remedy by virtue of the features of the characterising portion of claim 1.
  • the torsional spring When the torsional spring is frictionally engaged with the screw-nut, it is so twisted as to prevent a further rotation of the screw-nut without bringing any shock and have a spring-back force to rotate the screw-nut or screen-roll in the direction in which the screen is lowered. Therefore, it is very smooth to lower the screen from the roll-up position.
  • the fixed shaft is supported by a bracket with the intervention of a mechanism comprising a dial-ring coaxially fitted on a sector, a brake drum secured to said bracket and coaxially contained within said sector, and a coil spring fitted on said brake drum, said dial-ring having an inner projection disposed between the both ends of said coil spring in a slit which is formed in the sector.
  • the advantages offered by the invention are mainly that the screen is lightly lowered from its roll-up position.
  • the roll-up height of screen is exactly adjusted by fingering the dial-ring while the screen-roll is kept supported by the brackets.
  • Each trial of pulling and releasing the screen for an adjustment of the roll-up height needs no removal of the screen-roll from the brackets, so that it is very quick and easy to adjust the roll-up height of the screen.
  • the figures show one end portion of a roll blind equipped with the device according to the invention.
  • a screen-roll 10 has one end portion rotatably supported by a fixed shaft 20 passing through the end cap 14 of the screen-roll.
  • the fixed shaft 20 has its outer end fixedly sustained by a bracket 12 and the other end pinned to an extension shaft 21, which is composed of an outer drum portion 22, an intermediate screw-bolt portion 23 and an inner end portion 24.
  • a non-illustrated spring-motor is interposed between the opposite fixed shaft (not shown) and the screen-roll 10 to rotate the screen-roll 10 in the direction in which the screen 30 is rolled up.
  • the drum portion 22 is slightly tapered toward the screw-bolt portion 23 and coupled with a torsion spring 25 in the form of a coil which has an end secured to the drum portion 22 and the other free end loosely turning around the screw-bolt portion 23.
  • a screw-nut 26 is screwed on the screw-bolt portion 23 and circumferentially formed with splines 27 which are coupled with axial projections 16 on the inner circumference of the screen-roll 10. This means that the screw-nut 26 moves back and forth along the screw-bolt portion 23 as the screen-roll 10 rotates to wind up and down the screen 30.
  • the inner end portion 24 is rotatably supported by a rotary collar 29, which is peripherally splined to couple with the axial projection 16 for rotation with the screen-roll 10.
  • the screw-nut 26 has a conical surface 28 for fitting engagement with the spring 25, the inner diameter of which is larger than the minimum diameter of the conical surface 28 but smaller than the maximum diameter thereof.
  • the conical surface 28 is so engaged with the free end portion of the spring 25 that the spring 25 is caused to tighten on the drum portion 22.
  • the spring 25 allows no further rotation of the screw-nut 26 as well as the screen-roll 10 and absorbs a shock when the screen 30 stops at the height.
  • the inventive device allows the screen to be lightly lowered because the screw-nut always receives a spring-back force to rotate the screen-roll in the direction in which the screen is lowered whenever it is engaged with the stopper in the form of a torsional spring.
  • the roll blind is provided with the screen-roll 10 one end portion of which is rotatably fitted on a cylindrical portion of the fixed shaft 20.
  • the fixed shaft has an angular portion 20a fitted in an angular bore of a collar 32, which is secured to a sector 34 by set screws.
  • the sector 34 coaxially contains a brake coil spring 36 around a brake drum 38.
  • the brake drum 38 is rivetted to a bracket 50, which is fixed to a ceiling or the like by set screws.
  • a dial-ring 40 is somewhat loosely fitted on the sector 34.
  • the sector 34 has its periphery partly cut off as a slit 35 into which the opposite ends 36a, 36b of the brake coil spring 36 are inserted.
  • the both ends 36a, 36b are not crossed but open when axially viewed.
  • the dial-ring 40 has an inner projection 41 put in a space between the both ends 36a, 36b.
  • the collar 32 is fitted on the angular portion 20a of the fixed shaft and rotatably contained within the brake drum 38.
  • a snap ring 33 is mounted within the brake drum 38 to prevent the collar 32 from slipping out of the brake drum 38.
  • the collar 32 is fixed to the sector 34 by set screws so that the sector 34 is also prevented from axially slipping out of the the brake drum 38 and always kept on the outer periphery of the brake coil spring 36.
  • the inner projection 41 pushes one of the ends 36a, 36b in the direction in which the brake coil spring 36 is loosened to rotate together with the dial-ring 40 and then cause the sector 34 or fixed shaft 20 to turn.
  • the fixed shaft 20 can not cause the dial-ring 40 to rotate, because the fixed shaft 20 or sector 34 always pushes the end in the counter direction in which the brake coil spring 36 is tightened on the brake drum 38 to stop the rotation of the sector 34 or fixed shaft 20.
  • the fixed shaft 20, passing through the end cap 14 of the screen-roll 10, is pinned to an extension shaft 21, which has a drum portion 22, a screw-bolt portion 23 and an end portion 24.
  • the end portion 24 is loosely supported by a rotary collar 29, which is peripherally coupled with the screen-roll 10 by an axial projection 16.
  • the drum portion 22 is slightly tapered toward the screw-bolt portion 23.
  • a closely coiled spring 25 is coaxially put on the drum portion 22, having one end fixed to the drum portion and the other free end loosely turning around the screw-bolt 23 portion.
  • a screw-nut 26 is threadedly fitted on the screw-bolt portion 23.
  • the screw-nut 26 is peripherally formed with grooves 27, which is coupled with the axial projection 16 on the inner periphery of the screen-roll 10.
  • the screw-nut 26 rotates together with the screen-roll 10 and moves back and forth along the screw-bolt portion 23.
  • the screw-nut 26 is formed with a conical surface 28 for frictionally fitting engagement with the closely coiled spring 25.
  • the inner diameter of the coiled spring 25 is larger than the minimum diameter of the conical surface 28 but smaller than the maximum diameter of the same.
  • the screw-nut 26 When the screen-roll 10 winds up the screen 30 to a predetermined height, the screw-nut 26 has its conical surface 28 engaged with the free end of the coil spring 25 in a manner that the conical surface 28 rotates the coil spring 25 to tighten on the brake drum 22.
  • the coil spring 25 allows no further rotation of the screw-nut 26 or screen-roll 10 to stop the screen 30 at the predetermined height.
  • the spring-back force of the coil spring 25 acts on the screw-nut 26 in the direction in which the screw-nut 26 or screen-roll 10 rotates to wind down the screen.
  • the roll-up height of the screen is determined by an axial position of the screw-nut 26 on the screw-bolt portion 23.
  • the axial position is easily adjusted by the use of the dial-ring 40, which is rotatable together with the fixed shaft 20 or extension shaft 21 to move the screw-nut 26 along the screw-bolt portion 23.
  • the dial-ring 40 is easily operated by fingers to adjust the axial position of the screw-nut 26 or roll-up height of the screen while the screen-roll is kept supported by the brackets.
  • the device of the invention ensures that the roll-up height of the screen is exactly adjusted by a finger operation to move the screw-nut along the screw-bolt portion while the screen-roll remains in the brackets. It is most suitable for use in a roll blind to be required to raise a screen not fully but half. In the case of a plurality of roll blinds which are mounted side by side, the device can easily make all the screen-ends in a line when they are raised, because each trial of pulling and releasing the screen for an adjustment of the roll-up height needs no removal of the screen-roll from the brackets, so that it is very quick and easy to adjust the roll-up height of the screen.

Claims (5)

1. Dispositif de positionnement de rideau pour store à rouleau, comprenant un axe fixe (20), porté de manière fixe par une ferrure (12) de façon à supporter, de manière rotative, un rouleau à rideau (10) sur lequel est enroulé un rideau (30), une tige filetée (23), fixée de manière coaxiale sur cet axe fixe (20), un écrou (26), vissé sur la tige filetée (23) et venant au contact du rouleau à rideau (10) de façon à se déplacer en rotation avec celui-ci, un organe d'arrêt (25) fixé sur la tige filetée (23) de façon à venir en contact de freinage avec l'écrou (26), caractérisé en ce que la tige filetée (23) se présente sous la forme d'une partie d'un axe de prolongement (21), cet axe de prolongement comprenant une partie en forme de tambour (22) fixée sur l'axe fixe (21), en ce que l'écrou (26) comporte une surface conique (28) et en ce que l'organe d'arrêt est constitué par un ressort de torsion (25) en forme de ressort hélicoïdal dont l'une des extrémités est fixée sur la partie en forme de tambour (22), tandis que son autre extrémité, libre, s'enroule librement autour de la tige filetée (23) de façon à venir au contact de la surface conique (28).
2. Dispositif suivant la revendication 1, dans lequel le ressort de torsion (25) est enroulé de façon serrée autour de la partie en forme de tambour (22) d'une manière telle que ce ressort de torsion (25) se resserre lorsqu'il tourne dans le même sens que le rouleau à rideau (10) enroule le rideau (30) vers le haut.
3. Dispositif suivant la revendication 2, dans lequel le ressort de torsion (25) possède un diamètre intérieur supérieur au diamètre minimum de la surface conique (28), mais inférieur au diamètre maximum de cette surface conique (28).
4. Dispositif suivant l'une quelconque des revendications 1 à 3, dans lequel l'axe fixe (20) est porté par la ferrure (12) par l'intermédiaire d'un mécanisme comprenant un tambour de frein (38) fixé sur cette ferrure (12), un ressort hélicoïdal de frein (36) enroulé autour de ce tambour de frein (38), un secteur cylindrique (34) fixé sur l'axe fixe (20) et emboîté sur ce ressort hélicoïdal de frein (36), une fente (35) ménagée dans la périphérie de ce secteur cylindrique (34) de façon à recevoir les deux extrémités (36a, 36b) du ressort hélicoïdal de frein (36), une bague de réglage (40) emboîtée librement sur le secteur cylindrique (34) et comportant une saillie intérieure (41) placée entre ces deux extrémités de ressort (36a, 36b).
5. Dispositif suivant la revendication 4, dans lequel le secteur cylindrique (34) est empêché de quitter le tambour de frein (38), en glissant axialement sur lui, par une collerette (32) qui est fixée sur ce secteur cylindrique (34) et est montée à l'intérieur du tambour de frein (38) au moyen d'un circlip (39).
EP86107630A 1985-07-29 1986-06-05 Dispositif de positionnement de rideau pour un store à rouleau Expired EP0210381B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86107630T ATE48884T1 (de) 1985-07-29 1986-06-05 Schirmpositionierungsvorrichtung fuer einen rollvorhang.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP165842/85 1985-07-29
JP60165842A JPS6229693A (ja) 1985-07-29 1985-07-29 スクリ−ン巻上げ高さ調整装置

Publications (3)

Publication Number Publication Date
EP0210381A2 EP0210381A2 (fr) 1987-02-04
EP0210381A3 EP0210381A3 (en) 1987-08-19
EP0210381B1 true EP0210381B1 (fr) 1989-12-20

Family

ID=15820032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107630A Expired EP0210381B1 (fr) 1985-07-29 1986-06-05 Dispositif de positionnement de rideau pour un store à rouleau

Country Status (5)

Country Link
EP (1) EP0210381B1 (fr)
JP (1) JPS6229693A (fr)
AT (1) ATE48884T1 (fr)
DE (1) DE3667689D1 (fr)
ES (1) ES8704578A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11396773B2 (en) 2018-06-12 2022-07-26 Hunter Douglas, Inc. Limit stop assembly for an architectural-structure covering

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439027B1 (fr) * 1990-01-25 1992-11-25 Lista Ag Dispositif pour volets roulants
JP2679883B2 (ja) * 1991-01-29 1997-11-19 立川ブラインド工業株式会社 電動ロールブラインドの昇降装置
AU782302B2 (en) * 1997-07-16 2005-07-14 A/S Chr. Fabers Fabriker Winding mechanism for roller blinds
DK1009904T3 (da) * 1997-07-16 2004-04-05 Fabers Fab As C Optræksmekanisme til rullegardiner
JP3892972B2 (ja) * 1998-06-12 2007-03-14 不二ラテックス株式会社 ロールスクリーンの巻き取り装置
FR2790031B1 (fr) * 1999-02-19 2001-05-04 Wagon Automotive Snc Store a enrouleur a fixation amelioree du ressort de store, et bouchon correspondant
DE102006052969B4 (de) * 2006-11-08 2008-07-17 Vkr Holding A/S Anschlageinrichtung für die Öffen- und Schließbewegung einer Verschattungsanlage sowie Verschattungsanlage mit einer solchen Anschlageinrichtung
AU2010200306B2 (en) * 2009-02-09 2014-08-28 Hunter Douglas Industries B.V. A covering for an architectural opening
DE102010010648A1 (de) * 2010-03-09 2011-09-15 Stobag Ag Beschattungsvorrichtung
WO2013075747A1 (fr) 2011-11-24 2013-05-30 Silent Gliss International Ag Dispositif de réglage de store
NL2016905B1 (en) * 2016-06-07 2017-12-13 Coulisse Bv Spring operated roller blind system with end position adjusting mechanism
KR101717047B1 (ko) * 2016-12-26 2017-03-27 곽재석 롤 블라인드의 스프링 장력 사전 구속장치
CN109989698A (zh) * 2019-02-19 2019-07-09 广州市掬水帘饰品有限公司 一种无绳卷帘用弹簧结构
DE102021114022A1 (de) 2021-05-31 2022-12-01 Mhz Hachtel Gmbh & Co. Kg Beidseitig einstellbare Spindelsperrvorrichtung

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
JPS5162581A (ja) * 1974-11-26 1976-05-31 Kazumi Masaki Teishuhachiryoyokanetsudoshi
JPS5215023A (en) * 1975-07-26 1977-02-04 Makiichiro Takei Slip preventing drive device with weight at wheel shaft
JPS5821919Y2 (ja) * 1979-12-17 1983-05-10 メタコ企業株式会社 ロ−ルスクリ−ンの巻上げ制動装置
JPS6132076Y2 (fr) * 1980-08-29 1986-09-18
US4482137A (en) * 1982-12-10 1984-11-13 Irvin Industries, Inc. Compartment shade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11396773B2 (en) 2018-06-12 2022-07-26 Hunter Douglas, Inc. Limit stop assembly for an architectural-structure covering

Also Published As

Publication number Publication date
EP0210381A2 (fr) 1987-02-04
DE3667689D1 (de) 1990-01-25
ES8704578A1 (es) 1987-04-01
EP0210381A3 (en) 1987-08-19
JPS6229693A (ja) 1987-02-07
ATE48884T1 (de) 1990-01-15
ES556294A0 (es) 1987-04-01

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