US20120285631A1 - Pull Cord Mechanism for a Window Shade - Google Patents

Pull Cord Mechanism for a Window Shade Download PDF

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Publication number
US20120285631A1
US20120285631A1 US13/225,754 US201113225754A US2012285631A1 US 20120285631 A1 US20120285631 A1 US 20120285631A1 US 201113225754 A US201113225754 A US 201113225754A US 2012285631 A1 US2012285631 A1 US 2012285631A1
Authority
US
United States
Prior art keywords
barrel
pull cord
shade
sliding block
window shade
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.)
Abandoned
Application number
US13/225,754
Other languages
English (en)
Inventor
Xiang-Rong Zhu
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 US20120285631A1 publication Critical patent/US20120285631A1/en
Abandoned 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
    • E06B2009/3222—Cordless, i.e. user interface without cords
    • 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
    • E06B9/78—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
    • E06B2009/785—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles by belts, straps, bands, tapes, cords, tassels

Definitions

  • the present invention relates to a pull cord mechanism for a window shade.
  • An objective of the present invention is to provide a pull cord mechanism for a window shade capable of effectively preventing the pull cord from tangling a child.
  • the present invention fulfills the above objective by providing a pull cord mechanism including a frame, a shade, a shade driving mechanism, and a pull cord for driving the shade driving mechanism.
  • the shade driving mechanism is fixed to the frame and drives the shade to fold and unfold.
  • a barrel is mounted through a hook to the frame at a location corresponding to the pull cord.
  • the barrel includes a peripheral wall having a slit extending in an axial direction.
  • a sliding block is slideably received in the barrel.
  • a handle is mounted to an outer periphery of the peripheral wall of the barrel.
  • the sliding block is connected to the handle by a link extending through the slit.
  • the pull cord is received in the barrel.
  • the sliding block is fixed to the pull cord in the barrel.
  • the handle In operation, the handle is moved to move the sliding block upward or downward in the axial direction.
  • the sliding block moves upward or downward in a passageway in the barrel, actuating the pull cord to move upward or downward, which, in turn, drives the shade driving mechanism to fold or unfold the shade. Since the pull cord is received in the passageway of the barrel, children are prevented from being tangled by the pull cord, assuring use safety of the shade.
  • an end cap is mounted to a tail end of the barrel to effectively prevent the sliding block from moving out of the barrel.
  • the handle is a sleeve including a hole having a shape of cross sections corresponding to that of the cross sections of the barrel.
  • the hole of the barrel is cylindrical.
  • the sliding block includes two ends each having an end face. Each of the end faces of the sliding block has a curve corresponding to that of the inner periphery of the hole of the barrel.
  • the pull cord extends through a center of the sliding block and is fixed to the sliding block.
  • the sleeve and the sliding block are made of plastic.
  • the present invention can effectively prevent the pull cord from tangling a child, providing use safety.
  • FIG. 1 shows a schematic view of a pull cord mechanism for a window shade according to the present invention.
  • FIG. 2 shows a cross sectional taken along section line A-A of FIG. 1 .
  • a pull cord mechanism for a window shade includes a frame 1 , a shade 2 , a shade driving mechanism 3 , and a pull cord 4 for driving the shade driving mechanism 3 .
  • the shade driving mechanism 3 is fixed to the frame 1 and drives the shade 2 to fold and unfold.
  • a barrel 5 is mounted through a hook 6 to the frame 1 at a location corresponding to the pull cord 4 .
  • the barrel 5 includes a peripheral wall having a slit 7 extending in an axial direction.
  • a sliding block 8 is slideably received in the barrel 5 .
  • a handle 9 is mounted to an outer periphery of the peripheral wall of the barrel 5 .
  • the sliding block 8 is connected to the handle 9 by a link 10 extending through the slit 7 .
  • the pull cord 4 is received in the barrel 5 .
  • the sliding block 8 is fixed to the pull cord 4 in the barrel 5 .
  • the shape of the cross sections 5 a of the barrel 5 is one of square, rectangular, circular, elliptic, polygonal, and plum blossom-shaped.
  • An end cap 11 is mounted to a tail end of the barrel 5 .
  • the handle 9 is a sleeve having a hole 9 a.
  • the hole 9 a has a shape of cross sections corresponding to that of the cross sections 5 a of the barrel 5 .
  • the hole 5 b of the barrel 5 is cylindrical.
  • the sliding block 8 includes two ends each having an end face 8 a. Each of the end faces 8 a of the sliding block 8 has a curve corresponding to that of the inner periphery of the hole 5 b of the barrel 5 .
  • the pull cord 4 extends through a center of the sliding block 8 and is fixed to the sliding block 8 .
  • the sleeve 9 is made of plastic or aluminum alloy.
  • the sliding block 8 is made of plastic or aluminum alloy.
  • the sleeve 9 , the sliding block 8 , and the link 10 are integrally formed of plastic by injection molding or integrally formed by processing aluminum alloy.
  • the barrel 5 is made of aluminum alloy or plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Blinds (AREA)
US13/225,754 2011-05-13 2011-09-06 Pull Cord Mechanism for a Window Shade Abandoned US20120285631A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110123942.5 2011-05-13
CN201110123942A CN102213071B (zh) 2011-05-13 2011-05-13 一种窗帘用拉绳机构

Publications (1)

Publication Number Publication Date
US20120285631A1 true US20120285631A1 (en) 2012-11-15

Family

ID=44651326

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/225,754 Abandoned US20120285631A1 (en) 2011-05-13 2011-09-06 Pull Cord Mechanism for a Window Shade

Country Status (3)

Country Link
US (1) US20120285631A1 (zh)
EP (1) EP2522804A3 (zh)
CN (1) CN102213071B (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170241197A1 (en) * 2016-02-19 2017-08-24 Hunter Douglas Inc. Wand for architectural covering
US20170284155A1 (en) * 2016-04-05 2017-10-05 Holis Industries Ltd. Regulation mechanism for a venetian blind
WO2018195580A1 (en) * 2017-04-24 2018-11-01 Blindware Pty Ltd Motor for a spring assisted roller blind
US11299931B2 (en) 2019-09-10 2022-04-12 Hunter Douglas Inc. Wand assembly for use with a vertical architectural-structure covering

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553653A (en) * 1994-06-20 1996-09-10 2844788 Canada Ltee Cord retractor for window blinds
US5465779A (en) * 1994-07-22 1995-11-14 Rozon; David Integrated cord loop drive means and housing for window covering
DE19549035A1 (de) * 1995-12-30 1997-07-03 Neher Systeme Gmbh & Co Kg Haltevorrichtung für ein Rollo
CN2385065Y (zh) * 1999-06-10 2000-06-28 杨振江 手动式卷帘
CN201401115Y (zh) * 2009-02-26 2010-02-10 高林 卷帘式隔音门或窗
CN201416382Y (zh) * 2009-06-17 2010-03-03 李浩然 窗帘
CN101608530B (zh) 2009-07-16 2012-01-25 李七妹 一种卷帘用的卷筒驱动装置的改进结构
CN201605983U (zh) * 2009-12-23 2010-10-13 林世明 卷帘装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170241197A1 (en) * 2016-02-19 2017-08-24 Hunter Douglas Inc. Wand for architectural covering
US10538963B2 (en) * 2016-02-19 2020-01-21 Hunter Douglas Inc Wand for architectural covering
US20170284155A1 (en) * 2016-04-05 2017-10-05 Holis Industries Ltd. Regulation mechanism for a venetian blind
WO2018195580A1 (en) * 2017-04-24 2018-11-01 Blindware Pty Ltd Motor for a spring assisted roller blind
US11299931B2 (en) 2019-09-10 2022-04-12 Hunter Douglas Inc. Wand assembly for use with a vertical architectural-structure covering
USD950976S1 (en) 2019-09-10 2022-05-10 Hunter Douglas Inc. Wand assembly for use in an architectural-structure covering

Also Published As

Publication number Publication date
EP2522804A3 (en) 2013-02-27
CN102213071B (zh) 2012-10-17
EP2522804A2 (en) 2012-11-14
CN102213071A (zh) 2011-10-12

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Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION