EP0380346A1 - Dispositif pour l'entraînement et la rotation des lamelles d'un store vénitien du type horizontal - Google Patents

Dispositif pour l'entraînement et la rotation des lamelles d'un store vénitien du type horizontal Download PDF

Info

Publication number
EP0380346A1
EP0380346A1 EP90300811A EP90300811A EP0380346A1 EP 0380346 A1 EP0380346 A1 EP 0380346A1 EP 90300811 A EP90300811 A EP 90300811A EP 90300811 A EP90300811 A EP 90300811A EP 0380346 A1 EP0380346 A1 EP 0380346A1
Authority
EP
European Patent Office
Prior art keywords
winding drum
cord
lowering
spindle
slats
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
EP90300811A
Other languages
German (de)
English (en)
Other versions
EP0380346B1 (fr
Inventor
Masaaki C/O Kabushiki Kaisha Nichibei Daizen
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.)
Nichibei Co Ltd
Original Assignee
Nichibei Co Ltd
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
Priority claimed from JP732389U external-priority patent/JPH0712638Y2/ja
Priority claimed from JP732489U external-priority patent/JPH076473Y2/ja
Application filed by Nichibei Co Ltd filed Critical Nichibei Co Ltd
Publication of EP0380346A1 publication Critical patent/EP0380346A1/fr
Application granted granted Critical
Publication of EP0380346B1 publication Critical patent/EP0380346B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E06B9/308—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape with coaxial tilting bar and raising shaft
    • 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
    • E06B2009/3225—Arrangements to aid the winding of cords rollers
    • 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
    • E06B2009/3225—Arrangements to aid the winding of cords rollers
    • E06B2009/3227—Axially moving rollers

Definitions

  • the present invention relates to a slat raising/lowering and rotating apparatus for a horizontal type venetian blind and, more particularly, a slat raising/lowering and rotating apparatus including pull cords for raising and lowering horizontal slats and ladder cords for supporting the horizontal slats and for controlling rotation of them in which each pull cord is arranged to be wound onto or unwound from a winding drum to raise or lower the slats, and each ladder cord is mounted at its upper end on said winding drum, whereby raising and lowering of the slats and rotation of them can be controlled by operating a single rotating shaft for driving the winding drums.
  • a horizontal type venetian blind having a slat raising and lowering mechanism in which horizontal slats are raised or lowered under the action of pull cords which are arranged to be wound onto or unwound from winding drums driven by a single driving shaft to raise or lower the horizontal slats has been widely used.
  • the slat raising and lowering mechanism of the above kind has several disadvantages. Firstly, if the pull cord is collectively wound onto a particular position of the winding drum, a diameter of the cord wound onto the winding drum is gradually increased and a speed of winding the pull cord is gradually increased as an amount of the wound pull cord is increased. secondly, if the pull cord becomes caught between the previously wound turns of the pull cord, the pull cord cannot be smoothly unwound from the winding drum when the slats are lowered.
  • the horizontal type venetian blind in which the slat raising/lowering operation and the slat rotating operation are effected by rotation of the single driving shaft usually comprises a slat raising/lowering and rotating mechanism including winding drums for winding pull cords for raising and lowering the slats and rotating drums supporting upper ends of ladder cords.
  • the slat raising and lowering speed is also decreased, while if the diameter of the winding drum is increased, the size of the headbox must be increased and the diameter of the winding drum is necessarily increased, with the result that the slat rotating characteristic is deteriorated, as described above.
  • the torque required to rotate the slats is necessarily increased and in the conventional construction in which the upper portion of the ladder cord is frictionally engaged on the winding drum, the larger friction is required, so that more heavy force is required to effect slat raising/lowering operation or the slat rotating characteristic is deteriorated.
  • Such actuating pieces act to loosen the clutch spring after completion of the slat rotating operation, so that the rotation of the slats can be smoothly effected. If the above-mentioned ladder cord narrowering construction is applied to this apparatus, the upper end portions of the ladder cord are directly connected to the outwardly projecting end portions of the clutch spring, so that the ladder cord constantly acts to decrease the diameter of the clutch spring, with the result that the operating force is increased.
  • a slat raising/lowering and rotating apparatus for a horizontal venetian blind including a cord winding drum for winding a slat raising/lowering cord thereon, said cord winding drum being arranged in a headbox of the blind so that said winding drum is moved in axial direction, depending upon a rotation thereof, and a slat raising/lowering cord connected, at its upper end, to an end of said cord winding drum so that the cord is successively wound in a helical form around the winding drum, said apparatus comprising a male thread portion integrally formed near an end of said winding drum opposite to the end thereof to which the slat raising/lowering cord is connected and a drum bearing member for rotatably supporting said cord winding drum, said drum bearing member having an upwardly opened side and inner side walls having racks arranged to make meshing engagement with said male thread portion of the winding drum.
  • a slat raising/lowering and rotating apparatus for a horizontal venetian blind including a cord winding drum for winding a slat raising/lowering cord thereon, said apparatus comprising a clutch spring having a diameter slightly smaller than an outer diameter of said winding drum and mounted thereon, said clutch spring being projected, at its both ends, outwardly of the winding drum, a support piece horizontally arranged and connected to an upper end of a ladder cord for supporting blind slats, said support piece being mounted on a peripheral surface of said winding drum at a position between the outwardly projected ends of said clutch spring, an actuating portion formed on a drum bearing member for supporting said winding drum, said actuating portion being arranged at a position where said clutch spring comes into contact with said actuating portion, and a narrowering portion for narrowering a horizontal width of said ladder cord to a width smaller than an outer diamcter of said winding drum.
  • Fig. 1 is an exploded perspective view of the apparatus according to the embodiment of the present invention and Fig. 2 is a side view, partly broken, of the apparatus shown in Fig. 1.
  • the apparatus shown in Figs. 1 and 2 includes a cord winding drum 1 for winding and unwinding a slat raising/lowering cord 2 for raising and lowering blind slats.
  • Said cord winding drum 1 is supported in a drum bearing member 3.
  • a rotating shaft 4 for driving said winding drum 1 is passed through the winding drum, so that said drum 1 is rotated by said rotating shaft 4 but it is freely slidable along its axial direction.
  • a ladder cord 5 is provided to support blind slats and to control rotation of the blind slats.
  • the slat raising/lowering and rotating apparatus is so constructed that slat raising/lowering operation and slat rotating operation can be controlled by rotating the single driving shaft in one direction or the other.
  • a male thread portion 11 is formed at one end of said winding drum 1.
  • the drum bearing member 3 for supporting the winding drum 1 is formed as an upwardly opened case, and rack portions 31 are formed on inside walls of said drum bearing member so that said male thread portion 11 is in meshing engagement with said rack portions 31.
  • the winding drum 1 when the rotating shaft 4 is rotated in one direction, the winding drum 1 is moved in an axial direction, so that the cord 2 is successively wound in a helical form around the winding drum 1, thereby raising the slats.
  • the winding drum 1 When the rotating shaft 4 is rotated in the other direction, the winding drum 1 is moved in the opposite axial direction, so that the cord 2 is successively unwound from the winding drum 1, thereby lowering the slats.
  • a clutch spring 6 having an inner diameter slightly smaller than an outer diameter of the winding drum 1 is mounted on said winding drum 1.
  • the clutch spring 6 has projected portions 6a and 6b, at its both ends, which project outwardly of the winding drum 1.
  • the ladder cord 5 has a support piece 7 which is disposed in the horizontal direction at the upper end of said ladder cord. This support piece 7 is mounted on an outer surface of the winding drum 1 at a position between said outwardly projected end portions 6a and 6b of the clutch spring 6.
  • Actuating portions 8 are formed on the drum bearing member 3 for supporting the winding drum 1 and said actuating portions are arranged to receive the end portion 6a or 6b of the clutch spring 6.
  • Guide portions 9 are formed on the drum casing at positions where the ladder cord 5 passes into the drum bearing member. Said guide portions 9 serve to narrower a horizontal width of the ladder cord to a size smaller than the outer diameter of the winding drum 1.
  • Fig. 3A shows a state of the apparatus where the slats are not yet rotated.
  • the cord 2 is unwound from the winding drum 1, whereby the slats are lowered.
  • one vertical cord portion at one side of the ladder cord 5 moves in downward direction, while the other vertical cord portion at the outer side of the ladder cord moves in upward direction, whereby the slats are rotated in one direction.
  • the horizontal width of the ladder cord 5 is narrowered at its upper portion by the guide portions 9, as described above, so that the slats are forcibly rotated toward their vertical positions and thus superior rotating characteristic can be attained.
  • the clutch spring 5 is connected with the ladder cord through the intermediary of the horizontal support piece 7, as described above. At the time of the slat raising and lowering operation, one of the outwardly projected end portions of the clutch spring comes into engagement with the corresponding actuating portion of the drum bearing member, so that the clutch spring becomes expanded. Accordingly, the clutch spring is relieved of the load of the ladder cord, so that the operating force required to raise or lower the slats becomes lighter.
  • the support piece 7 attached to the upper end of the ladder cord 5 is slidable in circumferential direction around the winding drum 1 between the projected end portions 6a and 6b of the clutch spring, so that after the projected end portion of the clutch spring has come into engagement with the actuating portion 8, as shown in Fig.
  • the present invention provides a slat raising/lowering and rotating apparatus for a horizontal type blind in which a slat raising/lowering cord is wound on and unwound from a cord winding drum in a helical form, whereby the slat raising/lowering cord can be smoothly wound on and unwound from the winding drum, without causing gradual increasing of the wound diameter of the cord or without causing the cord to be caught between the previously wound turns of the slat raising/lowering cord.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
EP19900300811 1989-01-25 1990-01-25 Dispositif pour l'entraînement et la rotation des lamelles d'un store vénitien du type horizontal Expired - Lifetime EP0380346B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP732389U JPH0712638Y2 (ja) 1989-01-25 1989-01-25 横型ブラインドのスラット昇降回転機構
JP7323/89U 1989-01-25
JP732489U JPH076473Y2 (ja) 1989-01-25 1989-01-25 ブラインドの昇降コード巻取り装置
JP7324/89U 1989-01-25

Publications (2)

Publication Number Publication Date
EP0380346A1 true EP0380346A1 (fr) 1990-08-01
EP0380346B1 EP0380346B1 (fr) 1994-04-13

Family

ID=26341596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900300811 Expired - Lifetime EP0380346B1 (fr) 1989-01-25 1990-01-25 Dispositif pour l'entraînement et la rotation des lamelles d'un store vénitien du type horizontal

Country Status (2)

Country Link
EP (1) EP0380346B1 (fr)
DE (1) DE69007992T2 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0551486A4 (fr) * 1991-08-02 1994-01-05 General Clutch Corporation
US6964291B2 (en) 2003-01-14 2005-11-15 Ren Judkins Double shade headrail with removable cord collection spools
EP1557524A3 (fr) * 2003-03-31 2009-05-27 Jørn Krab Holding APS Mécanisme de levage et de basculement pour store vénitien
WO2011020881A1 (fr) * 2009-08-21 2011-02-24 Jørn Krab Holding APS Mécanismes de levage pour store vénitien
CN102733742A (zh) * 2012-07-17 2012-10-17 苏州太丰玻璃饰品有限公司 一种中空玻璃内置遮阳装置绕绳结构
WO2017088191A1 (fr) * 2015-11-24 2017-06-01 雷振邦 Mécanisme d'enroulement de rideau sans cordon d'actionnement
CN106968584A (zh) * 2017-05-31 2017-07-21 义乌市斯卡丹遮阳设备有限公司 一种百叶窗帘卷绳器
EP3263824A1 (fr) * 2016-06-29 2018-01-03 Storenmaterial Ag Store à lamelles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686934B1 (fr) * 1992-01-30 1994-04-15 Somfy Dispositif d'enroulement de cordon de suspension de store.
EP0600133A1 (fr) * 1992-12-04 1994-06-08 Nien Made Enterprise Co., Ltd. Dispositif d'inclinaison
CH693423A5 (de) 1999-09-09 2003-07-31 Silent Gliss Int Ag Lamellenstore.
AU737382B3 (en) * 2001-02-15 2001-08-16 Tai-Ping Liu Lift control device for a roller shade

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE648122A (fr) * 1963-05-24 1964-09-16
US3310099A (en) * 1965-07-19 1967-03-21 Hunter Electric venetian blind
DE1509809A1 (de) * 1964-12-19 1969-02-27 Giuseppe Russo Steuerungsvorrichtung fuer Jalousien,Venezianische Markisen od.dgl.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE648122A (fr) * 1963-05-24 1964-09-16
DE1509809A1 (de) * 1964-12-19 1969-02-27 Giuseppe Russo Steuerungsvorrichtung fuer Jalousien,Venezianische Markisen od.dgl.
US3310099A (en) * 1965-07-19 1967-03-21 Hunter Electric venetian blind

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0551486A4 (fr) * 1991-08-02 1994-01-05 General Clutch Corporation
US6964291B2 (en) 2003-01-14 2005-11-15 Ren Judkins Double shade headrail with removable cord collection spools
EP1557524A3 (fr) * 2003-03-31 2009-05-27 Jørn Krab Holding APS Mécanisme de levage et de basculement pour store vénitien
WO2011020881A1 (fr) * 2009-08-21 2011-02-24 Jørn Krab Holding APS Mécanismes de levage pour store vénitien
EP2295703A1 (fr) * 2009-08-21 2011-03-16 Jørn Krab Holding APS Mécanisme de relevage pour store vénitien
CN102733742A (zh) * 2012-07-17 2012-10-17 苏州太丰玻璃饰品有限公司 一种中空玻璃内置遮阳装置绕绳结构
WO2017088191A1 (fr) * 2015-11-24 2017-06-01 雷振邦 Mécanisme d'enroulement de rideau sans cordon d'actionnement
EP3263824A1 (fr) * 2016-06-29 2018-01-03 Storenmaterial Ag Store à lamelles
CN106968584A (zh) * 2017-05-31 2017-07-21 义乌市斯卡丹遮阳设备有限公司 一种百叶窗帘卷绳器
CN106968584B (zh) * 2017-05-31 2018-07-31 义乌市斯卡丹遮阳设备有限公司 一种百叶窗帘卷绳器

Also Published As

Publication number Publication date
DE69007992T2 (de) 1994-09-01
EP0380346B1 (fr) 1994-04-13
DE69007992D1 (de) 1994-05-19

Similar Documents

Publication Publication Date Title
KR100229947B1 (ko) 롤러 차양막 클러치 제어
US5123472A (en) Apparatus for lifting and tilting slats in a venetian blind
US5103888A (en) Blind slats lifting device
US5927370A (en) Release brake shade operator
WO2011052772A1 (fr) Dispositif de blindage et embrayage utilisé à cet effet
US7523777B2 (en) Roman shade
EP0380346B1 (fr) Dispositif pour l'entraînement et la rotation des lamelles d'un store vénitien du type horizontal
US20220205320A1 (en) Top-down bottom-up window covering
US20050045279A1 (en) Window covering and method of use
JP3064243B2 (ja) 横型ブラインドの操作装置
JPH0480492A (ja) 連装型ロールブラインドのスクリーン昇降装置
EP1052365B1 (fr) Dispositif d'entraînement pour un store vénitien
JP2011094458A (ja) 遮蔽装置
EP0551486B1 (fr) Store a lamelles a commande unique
JPH027186Y2 (fr)
JP3138227B2 (ja) 横型ブラインドの操作装置
JPH07122386B2 (ja) シャッタ、主にローラシャッタのための駆動装置
JPH0214633Y2 (fr)
JP2912139B2 (ja) ブラインドの昇降コードストッパ装置
JPH0712638Y2 (ja) 横型ブラインドのスラット昇降回転機構
JPH0328155Y2 (fr)
JPS642945Y2 (fr)
JP3910923B2 (ja) 横型ブラインドの下限停止装置
JPH0750551Y2 (ja) ブラインドのスラット昇降装置
JP4087525B2 (ja) 縦型ブラインドのスラット駆動装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19901024

17Q First examination report despatched

Effective date: 19920727

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

REF Corresponds to:

Ref document number: 69007992

Country of ref document: DE

Date of ref document: 19940519

ITF It: translation for a ep patent filed
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080129

Year of fee payment: 19

Ref country code: NL

Payment date: 20080116

Year of fee payment: 19

Ref country code: GB

Payment date: 20080117

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080121

Year of fee payment: 19

Ref country code: DE

Payment date: 20080228

Year of fee payment: 19

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090125

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20090801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090801

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090125