EP2955314A1 - Casier à cordon réglable et store de fenêtre ayant un tel casier à cordon réglable - Google Patents

Casier à cordon réglable et store de fenêtre ayant un tel casier à cordon réglable Download PDF

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Publication number
EP2955314A1
EP2955314A1 EP15166180.8A EP15166180A EP2955314A1 EP 2955314 A1 EP2955314 A1 EP 2955314A1 EP 15166180 A EP15166180 A EP 15166180A EP 2955314 A1 EP2955314 A1 EP 2955314A1
Authority
EP
European Patent Office
Prior art keywords
reel
cord
control wheel
barrel
locker
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Withdrawn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
EP15166180.8A
Other languages
German (de)
English (en)
Inventor
Yu-Che Wen
Chao-Hung Nien
Xu-Wu QU
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.)
Nien Made Enterprise Co Ltd
Original Assignee
Nien Made Enterprise 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
Application filed by Nien Made Enterprise Co Ltd filed Critical Nien Made Enterprise Co Ltd
Priority to EP16174552.6A priority Critical patent/EP3095951A1/fr
Publication of EP2955314A1 publication Critical patent/EP2955314A1/fr
Withdrawn legal-status Critical Current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
    • E06B9/324—Cord-locks
    • 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
    • E06B9/38—Other details
    • E06B9/388—Details of bottom or upper slats or their attachment

Definitions

  • the present invention relates generally to window covering, and more particularly to an adjustable cord locker, and a window blind equipped with the adjustable cord locker.
  • a conventional window blind is provided with a headrail, a bottom rail, and a plurality of slats between the headrail and the bottom rail.
  • the slats are connected to the headrail and the bottom rail through ladder cords and lift cords.
  • the ladder cords controls tilt of the slats, and the lift cord controls the bottom rail to lift and lower.
  • the ladder cords and the lift cords will be lengthened while the ladder cords and the lift cords are working under tensions for a long time. Once the ladder cords are lengthened, a distance between the headrail and the bottom rail increases, and the slats might tilt from the normal.
  • U.S. 2009/0294076 application provides a window blind, in which a cord locker is provided. The cord locker is provided with a turnable reel to wind the ladder cords therearound once the ladder cords are lengthened.
  • this invention is unable to fix the problem of extension of the lift cord. As a result, the slats tilt for a large angle because of the tension and the length of the lift cord are different from that of the ladder cords.
  • the primary objective of the present invention is to provide an adjustable cord locker and a window blind having the adjustable cord locker, which is able to regulate the length of the lift cord to balance the bottom rail.
  • an adjustable cord locker includes a barrel; and a reel received in the barrel for rotation by control, wherein a lift cord is fastened to the reel to wind the lift cord around the reel while the reel is rotated.
  • the present invention further provides a window blind, including a headrail; a bottom rail; a plurality of slats between the headrail and a bottom rail; and at least a lift cord passing through the headrail and the slats in sequence, and connected to the bottom rail through an adjustable cord locker.
  • the adjustable cord locker includes a barrel; and a reel received in the barrel for rotation, wherein the lift cord is fastened to the reel to wind the lift cord around the reel while the reel is rotated.
  • the length of the lift cord could be regulated by turning the reel to balance the bottom rail.
  • a window blind 1, of the first preferred embodiment of the present invention includes a headrail 10, a bottom rail 12, and a plurality of slats 14 between the headrail 10 and the bottom rail 12.
  • Two ladder cords 16 are connect to the headrail 10 and the bottom rail 12, and the slats 14 are spaced and supported by the ladder cords 16 between the headrail 10 and the bottom rail 12.
  • a lift cord 18 has an end fastened to the bottom rail 12, passes through the slats 14 in sequence, goes into the headrail 10, and then goes out of the headrail 10 to beheld and operated by a user.
  • the window blind 1 further is provided with two adjustable cord lockers 20, which are received in bores on a bottom of the bottom rail 12.
  • the lift cords 18 are fastened to the cord lockers 20 respectively to be connected to the bottom rail 12.
  • each cord locker 20 has a barrel 22, a reel 24, and two control wheels 26.
  • the barrel 22 has a cylinder 221, a bottom board 222, two rib board 223, and two pawls 224.
  • the cylinder 221 is hollow, and has a top opening 221a at a top thereof for the lift cord 18 passing through.
  • the bottom board 222 is connected to a bottom of the cylinder 221, and has a bottom opening 222a.
  • the bottom opening 222a is communicated with the top opening 221a.
  • the rib boards 223 are parallel, and received in the cylinder 221.
  • the rib boards 223 have opposite ends connected to the cylinder 221, and a bottom end connected to the bottom board 222.
  • Each rib board 223 is provided with a slot 223a at a side facing each other.
  • the bottom opening 222a is communicated with the slots 223a.
  • the pawls 224 are two hooks projected from an inner side of the cylinder 221.
  • the reel 24 is a round rod having a cord portion 24a and a cord hole 24b on the cord portion 24a.
  • the lift cord 18 passes through the cord hole 24b after the top opening 221a, and then is knotted.
  • the lift cord 18 will be wound around the cord portion 24a while the reel 24 is turning.
  • the reel 24 is transversely arranged in the cylinder 221 with opposite ends engaging the slots 223a of the rib boards 223, which means that the reel 24 is vertical to an axial direction of the barrel 22.
  • the reel 24 is dragged by the lift cord 18, so that the reel 24 rests against top sidewalls of the slots 223a, and is turnable.
  • the control wheels 26 are fixed to the reel 24, and the cord portion 24a is between the control wheels 26.
  • the reel 24 works like an axle of the control wheels 26.
  • the control wheels 26 and the reel 24 are made into a single element.
  • the control wheels are two independent elements fixed to the reel.
  • Each control wheel 26 has teeth 26a on a circumference thereof.
  • the teeth 26a are ratchet teeth. As shown in FIG. 4 , some of the teeth 26 extend out of the cylinder 221 via the bottom opening 222a to be operated by user to turn the reel 24.
  • the cord locker 20 of the present invention may wind the lift cord 18 around the reel 24 in one direction to regulate the length change of the lift cord 18, and to balance the bottom rail 12.
  • a cord locker 30 of the second preferred embodiment is shown in FIG. 5 to FIG. 7 , which includes a barrel 32, a reel 34, and a control wheel 36.
  • the different part of the cord locker 30 of the second preferred embodiment is that a top board 321 is connected to a top of the barrel 32.
  • the top board 321 is provided with a bore 321a and a top opening 321b.
  • a lift cord 18 is inserted into the top opening 321b.
  • the barrel 32 is provided with a bottom opening 322 and a flexible arm 323 at a bottom thereof.
  • the flexible arm 323 has a pawl 324, which is a protrusion, on an inner side and adjacent to a free end thereof.
  • the control wheel 36 is connected to an end of the reel 34.
  • the reel 34 is vertical, parallel to the axial direction of the barrel 32, and inserted into the bore 321a via the bottom opening 322 while the control wheel 36 covers the bottom opening 322 of the barrel 32.
  • the reel 34 has a cord hole 34a and a slot 34b.
  • the cord hole 34a is radially passing through the reel 34, and the slot 34b breaks the reel 34 into two pieces from a free end, through the cord hole 34a, to a position adjacent to the control wheel 36.
  • the reel 34 is provided with a recess at an end of the cord hole 34a, and the recess is larger than the cord hole 34a. At distal ends of the pieces of the reel 34 two hooks are provided.
  • the hooks extend out of the bore 321a and hook an edge of the bore 321a that the reel 34 and the control wheel 36 will not escape from the barrel 32, but are turnable.
  • the lift cord 18 is inserted into the top opening 321b, and then goes through the cord hole 34a via an end opposite to the recess, so that a knot of the lift cord 18 is received in the recess. As a result, the lift cord 18 is fastened to the reel 34, and wound around the reel 34 while the reel 34 is turning.
  • the control wheel 36 is provided with a driving portion 36a at a bottom thereof for an external force to engage to turn the control wheel 36, and the reel 34 will be turned at the same time to wind the lift cord 18.
  • the driving portion 36a includes a straight slot for a screwdriver 100 (dot line in FIG. 7 ) to engage and turn the control wheel 36 by turning the screwdriver 100.
  • the driving portion 36a further includes two protrusions at opposite ends of the straight slot for a user to hold them to turn the control wheel 36.
  • the control wheel 36 is provided with ratchet teeth 36b on a circumference to be engaged with the pawl 324 that the reel 34 and the control wheel 36 are able to turn in one direction only.
  • the function of the second preferred embodiment is the same as above, so we do not describe it again.
  • the barrel 32 is provided with two side openings 325 on an annular wall thereof.
  • the lift cord 18 may be inserted into the barrel 32 through any of the side openings 325 instead of the top opening 321b to be fastened to the reel 34.
  • Some window blinds are provided with two or more lift cords, and these lift cords do not pass through the slats. For this kind of lift cords, two of the lift cords could be inserted into the side openings 325 respectively to be fastened to the reel 34.
  • the barrel 32 further is provided with several ribs 326 on the annular wall make the barrel 32 firmed engage the bore of the bottom rail 12.
  • FIG. 8 and FIG. 9 show a cord locker 40 of the third preferred embodiment of the present invention, which includes a barrel 42, a reel 44, and a control wheel 46.
  • the barrel 42 has a top opening 42a on a top and two side openings 42b on an annular wall for the lift cord 18 to be inserted into the barrel 42 through any of them.
  • the reel 44 has a cord hole 44b, a recess at an end of the cord hole 44b, and a slot 44c breaking the reel 44 into two pieces.
  • the barrel 42 also has ribs 42c to make the barrel 42 firmly engage the bottom rail 12.
  • the different part of the third embodiment is that a pawl 42d is not on a flexible arm, it's on an inner side of the barrel 42 and adjacent to a bottom opening 42e thereof.
  • the reel 44 is connected to the control wheel 46, and both of them are received in the barrel 42.
  • the control wheel 46 is provided with ratchet teeth 46a to be engaged with the pawl 42a to secure the control wheel 46 as well as the reel 44 while they are engaged.
  • the reel 44 is provided with legs 44d projected from a bottom of a cord portion 44a, and each leg 44d is provided with a hook 44e at a distal end thereof.
  • the control wheel 46 is provided with through holes 46b and a driving portion 46c (the straight slot).
  • the legs 44d are inserted into the through hole 46b of the control wheel 46 respectively, and the hooks 44e extend out of the through hole 46b and engage an edge of the through hole 46b to make the control wheel 46 is able to move related to the reel 44 between a first position P1 ( FIG. 10 ) and a second position P2 ( FIG. 11 ).
  • the control wheel 46 keeps a distance from the reel 44, and the control wheel 46 moves towards the reel 44 while it move to the second position P2.
  • the control wheel 46 at the second position P2 is closer to the reel 44 than the control wheel 46 at the first position P1.
  • the pawl 42d engages teeth 46a of the control wheel 46, and the pawl 42d disengages the teeth 46a when the control wheel 46 is moved to the second position P2.
  • the cord locker 40 further is provide with at least an elastic member between the reel 44 and the control wheel 46 to urge the control wheel 46 toward the first position P1.
  • the control wheel 46 will be stopped at the first position P1 because of the hooks 44e of the legs 44.
  • the elastic member includes several flexible pieces 48 projected from the reel 42. Distal ends of the flexible pieces 48 touch and urge the control wheel 46 toward the first position P1.
  • An alternate elastic member is shown in FIG. 12 , which is a spring 49 with opposite end urging the reel 44 and the control wheel 46. They achieve the same function.
  • FIG. 13 shows a barrel 50, which has a polygonal cylinder 52 instead of the round cylinder as described above.
  • the polygonal cylinder 52 may make the barrel 50 much firmly engage the bottom rail 13.
  • FIG. 13 and FIG. 14 show an alternate design of teeth of the control wheel 54.
  • the teeth 54a of the control wheel 54 are trapezoidal teeth, and recesses 54b between the trapezoidal teeth 54a are complementary to the pawl 50a for engagement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Blinds (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
EP15166180.8A 2014-06-13 2015-05-04 Casier à cordon réglable et store de fenêtre ayant un tel casier à cordon réglable Withdrawn EP2955314A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16174552.6A EP3095951A1 (fr) 2014-06-13 2015-05-04 Casier a cordon reglable et store de fenetre ayant un tel casier a cordon reglable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420317008.6U CN203978234U (zh) 2014-06-13 2014-06-13 可调节式尾扣及具有该尾扣的窗帘

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP16174552.6A Division EP3095951A1 (fr) 2014-06-13 2015-05-04 Casier a cordon reglable et store de fenetre ayant un tel casier a cordon reglable

Publications (1)

Publication Number Publication Date
EP2955314A1 true EP2955314A1 (fr) 2015-12-16

Family

ID=51975692

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15166180.8A Withdrawn EP2955314A1 (fr) 2014-06-13 2015-05-04 Casier à cordon réglable et store de fenêtre ayant un tel casier à cordon réglable
EP16174552.6A Withdrawn EP3095951A1 (fr) 2014-06-13 2015-05-04 Casier a cordon reglable et store de fenetre ayant un tel casier a cordon reglable

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP16174552.6A Withdrawn EP3095951A1 (fr) 2014-06-13 2015-05-04 Casier a cordon reglable et store de fenetre ayant un tel casier a cordon reglable

Country Status (4)

Country Link
EP (2) EP2955314A1 (fr)
CN (1) CN203978234U (fr)
AU (2) AU2015202103B2 (fr)
CA (2) CA2944604A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106089002A (zh) 2016-07-25 2016-11-09 苏州鸿仁窗饰有限公司 绕线组件及收放式窗帘
CN106050109B (zh) 2016-07-25 2018-12-07 苏州鸿仁窗饰有限公司 用于窗帘拉绳的调节装置及收放式窗帘
CN106050108B (zh) 2016-07-25 2018-05-08 苏州鸿仁窗饰有限公司 用于窗帘拉绳收放的收放装置及收放式窗帘
CN108661525A (zh) * 2018-07-25 2018-10-16 江苏赛迪乐节能科技有限公司 双操控暖边框中空玻璃百叶窗
CN111677433A (zh) * 2020-08-12 2020-09-18 广东金成汉狮建材科技有限公司 一种电子限位同步平行电动卷绳中空百叶窗帘玻璃

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090294076A1 (en) 2008-05-27 2009-12-03 Hunter Douglas Inc. Bottom rail anchor for cord ladder
DE102009008774A1 (de) * 2009-02-13 2010-08-19 Mhz Hachtel Gmbh & Co. Kg Aufzugsschnurbefestigungsanordnung für eine Horizontaljalousie
US20120312486A1 (en) * 2011-06-07 2012-12-13 Hunter Douglas Inc. Adjustable lift cord anchor for movable rails in coverings for architectural openings

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7025107B2 (en) * 2001-07-31 2006-04-11 Newell Window Furnishings, Inc. One-way tensioning mechanism for cordless blind
US6761202B1 (en) * 2002-06-05 2004-07-13 Zipshade Industrial (B.V.I.) Corp. Window covering height adjustment method and apparatus using traveling rotor
US7578334B2 (en) * 2005-06-03 2009-08-25 Hunter Douglas Inc. Control system for architectural coverings with reversible drive and single operating element
US20100206492A1 (en) * 2009-02-13 2010-08-19 Shades Unlimited, Inc. Window covering featuring automatic cord collection
TW201307667A (zh) * 2011-08-04 2013-02-16 Teh Yor Co Ltd 設有阻力平衡機構的窗簾

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090294076A1 (en) 2008-05-27 2009-12-03 Hunter Douglas Inc. Bottom rail anchor for cord ladder
DE102009008774A1 (de) * 2009-02-13 2010-08-19 Mhz Hachtel Gmbh & Co. Kg Aufzugsschnurbefestigungsanordnung für eine Horizontaljalousie
US20120312486A1 (en) * 2011-06-07 2012-12-13 Hunter Douglas Inc. Adjustable lift cord anchor for movable rails in coverings for architectural openings

Also Published As

Publication number Publication date
AU2016273936A1 (en) 2017-01-12
CA2944604A1 (fr) 2015-12-13
AU2016273936B2 (en) 2017-08-31
CN203978234U (zh) 2014-12-03
CA2891816A1 (fr) 2015-12-13
AU2015202103A1 (en) 2016-01-07
AU2015202103B2 (en) 2017-01-19
EP3095951A1 (fr) 2016-11-23

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