GB2512974A - Cordless curtain assembly - Google Patents
Cordless curtain assembly Download PDFInfo
- Publication number
- GB2512974A GB2512974A GB1400976.5A GB201400976A GB2512974A GB 2512974 A GB2512974 A GB 2512974A GB 201400976 A GB201400976 A GB 201400976A GB 2512974 A GB2512974 A GB 2512974A
- Authority
- GB
- United Kingdom
- Prior art keywords
- curtain
- fixed
- passage
- pillars
- head box
- 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- Withdrawn
Links
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
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
-
- 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
- E06B9/262—Lamellar or like blinds, e.g. venetian blinds with flexibly-interconnected horizontal or vertical strips; Concertina blinds, i.e. upwardly folding flexible screens
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Blinds (AREA)
Abstract
A cordless curtain assembly including a curtain unit, a head box and bottom bar, located in the head box is a fixed part 30, a movable part 40, a spring 20 and an operation cord. The spring is attached at one end 22 to a fixed point 44 and at the other 21 to the moveable part 43. The moveable part and the fixed part each have a passage 31 41, the fixed part having at least two first pillars 310 and multiple first columns 312, the moveable part having at least two second pillars 410 and multiple second rollers 42. The operation cord is wrapped to the two first pillars via the first passage, the second pillars via the second passage with the ends of the operation cord extending through holes in the head box and curtain to the bottom bar. The user pulls the bottom bar to operate the operation cord, the movable part is moved and activates the spring to lower the curtain. When the user lifts the bottom bar, the spring force is release and the movable part moves back to its initial position to let the operation cord to pull the curtain upward. The curtain may be a window blind, honeycomb curtain or foldable shade.
Description
CORDLESS CURTAIN ASSEMBLY
FIELD OF THE INVENTION
The present invention relates to a cordless curtain assembly, and more particularly, to a cordless curtain assembly using a spring to control a movable member to control the operation of the curtain.
BACKGROUND OF THE INVENTION
A conventional curtain assembly generally comprises a curtain, a transmission unit and a control cord, wherein the transmission unit is located in the head box and connected with the control cord. When the user pulls the cord, the curtain is moved upward or downward relative to the operation of the transmission unit and the cord.
However, the conventional curtain assembly involves a complicated structure. The cord is connected to the transmission unit so that if the user, pulls the cord too hard or releases the cord too quickly, the curtain cannot be properly positioned at the desired position. The user has to operate the cord to adjust the position of the curtain several times.
Besides, the cord is connected to the transmission unit and the curtain is moved according to the operation of the transmission unit and the cord. The connection between the transmission unit and the cord is complicated and the manufacturing cost is high.
The present invention intends to provide a curtain assembly which does not need the control cord and the complicated structure.
SUMMARY OF THE INVENTION
The present invention relates to a curtain assembly and comprises a spring having a first end and a second end which is fixed to a first fixed member in the head box. A fixed part has a first passage defined therein, and at least two first pillars, at least one fixed member and multiple first columns are located in the first passage of the fixed part. A movable part has a second passage defined therein, and at least two second pillars located in the second passage. Multiple rollers are located at the periphery of the movable part. Multiple first fixed members are located in the movable part. The first end of the spring is connected to one of the first fixed meEnbers. An operation cord is wrapped to the at least two fir st pillars via the first passage and the at least two second pillars via the second passage.
Alternatively, the present invention provides a cordless curtain assembly and comprises a curtain unit having a head box and a bottom bar, and a curtain is connected between the head box and the bottom bar. The head box has a space defined therein and multiple holes are defined through the bottom of the space. A spring has a first end and a second end which is fixed to a first fixed member in the head box. A fixed part has a first passage defmed therein, and at least two first pillars, at least one fixed member and multiple first columns are located in the first passage of the fixed part. The fixed part is securely located in the space and located in opposite to the first fixed member. A movable part has a second passage defined therein, and at least two second pillars are located in the second passage. Multipk rollers are located at the periphery of the movable part. Multiple first fixed members are located in the movable part which is movably located in the space of the head box. The first end of the spring is connected to one of the first fixed members. An operation cord is wrapped to the at least two first pillars via the first passage and the at least two second pillars via the second passage.
Two ends of the operation cord extend through the holes of the head box and the cflin, and are fixed to the bottom bar.
Preferably, the curtain is window blinds.
Preferably, the curtain is a honeycomb curtain.
Preferably, the curtain is a foldable shade.
The primary object of the present invention is to provide a curtain assembly which does not need the control cable hanging outside of the curtain, and the structure is simple.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a prefened embodiment in accordance with the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is an exploded view to show the curtain assembly of the present invention; Fig. 2 is a top view to show thç parts in the head box of the curtain assembly of the present invention, wherein the spring is not extended; Fig. 3 is a side cross sectional view to show the curtain assembly wherein the curtain is located at the higher position; Fig. 4 is a top view to show the parts in the head box of the curtain assembly of the present invention, wherein the spring is extended, and Fig. S is a side cross sectional view to show the curtain assembly wherein the curtain is located at the lower position.
DETAILED DESCRIPTION OF TIlE PREFERRED EMBODIMENT
Referring to Figs. 1 to 3, the curtain assembly of the present invention comprises a curtain unit 10 having a head box 11 and a bottom bar 12. A curtain 13 is connected between the head box 11 and the bottom bar 12. The head box 11 has a space defined therein and multiple holes 11.1 are defmed through the bottom of the space 110. The curtain is window blinds, a honeycomb curtain or a foldable shade.
A spring 20 has a first end 21 and a second end 22 which is fixed to a first fixed member 44 in the head box 11. A fixed part 30 has a first passage 31 defined therein, and at least two first pillars 310, at least one fixed member and multiple first columns 312 are located in the first passage 31 of the fixed part 30. The fixed part 30 is securely located in the space 110 and located in opposite to the first fixed member 44.
A movable part 40 has a second passage 41 defined therein, and at least two second pillars 410 are located in the second passage 41. Multiple rollers 42 are located at the periphery of the movable part 40. Multiple first fixed members 43 are located in the movable part 40. The movable part 40 is movably located in the space 110 of the head box 11. The first end 21 of the spring 20 is connected to one of the first fixed members 43.
An operation cord 50 is wrapped to the at least two first pillars 310 via the first passage 31 and the at least two second pillars 410 via the second passage 41.The two ends of the operation cord 50 extend through the holes 111 of the head box 11 and the curtain 13, and are fixed to the bottom bar 12.
As shown in Figs. 1-5, the spring 20 and the fixed part 30 are respectively and securely located in two ends of the space 110 of the head box 11. The movable part 40 is movably located in the space 110 of the head box 11, and the rollers 42 contact the inside of the space 110. The first end 2] and the second end 22 of the spring 20 are respectively connected to the second fixed member 43 in the movable part 40 and the first fixed member 44 in the head box 11. The operation cord 50 is wrapped to the at least two first pillars 310 via the first passage 31 and the at least two second pillars 410 via the second passage 41.The two ends of the operation cord 50 extend through the holes 111 of the head box 11 arid the curtain 13, and are fixed to the bottom bar 12.
When the user pulls the bottom bar 12 downward, the operation cable 50 moves so as to extend the spring 20 to expand (lower) the curtain 13. When the user pushes the bottom bar 12 upward, the force of the spring 20 releases and the spring 20 bounces to its initial status, and the movable part 40 is moved, so that the operation cable 50 lifts the curtain 13.
The operation to the bottom bar 12 drives the operation cable 50 to move the movable part 40 and the spring 20 is expanded or bounces to its initial status, such that the curtain 13 is lowered or lifted. The operation is easy and the structure is simple. The manufacturing cost is therefore reduced.
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Claims (5)
- WHAT IS CLAIMED IS: 1. A curtain assembly comprising: a spring having a first end and a second end which is fixed to a first fixed member in a head box; a fixed part having a first passage defined therein, at least two first pillars, at least one fixed member and multiple first colunins located in the first passage of the fixed part; a movable part having a second passage defined therein, at least two second pillars located in the second passage, multiple rollers located at a periphery of the movable part, multiple first fixed members located in the movable part, the first end of the spring connected to one of the first fixed members, and an operation cord wrapped to the at least two first pillars via the firstpassage and the at least two second pillars via the second passage.
- 2. A cordless curtain assembly comprising: a curtain unit having a head box and a bottom bar, a curtain connected between the head box and the bottom bar, the head box having a space defmed therein and multiple holes defined through a bottom of the space; a spring having a first end and a second end which is fixed to a first fixed member in the head box; a fixed part having a first passage defined therein, at least two first pillars, at least one fixed member and multiple first columns located in the first passage of the fixed part, the fixed part being securely located in the space and located in opposite to the first fixed member; a movable part having a second passage defmed therein, at least two second pillars located in the second passage, multiple rollers located at a periphery of the movable part, multiple first fixed members located in the movable part, the movable part movably located in the space of the head box, the first end of the spring connected to one of the first fixed members, and an operation cord wrapped to the at least two first pillars via the first passage and the at least two second pillars via the second passage, two ends of the operation cord extending through the holes of the head box and the curtain and being fixed to the bottom bar.
- 3. The curtain assembly as claimed in claim 2, wherein the curtain is window blinds.
- 4. The curtain assembly as claimed in claim 2, wherein the curtain is a honeycomb curtain.
- 5. The curtain assembly as claimed in claim 2, wherein the curtain is a foldable shade.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW102202402U TWM467724U (en) | 2013-02-04 | 2013-02-04 | Structure of window blind with no lift cord |
Publications (2)
Publication Number | Publication Date |
---|---|
GB201400976D0 GB201400976D0 (en) | 2014-03-05 |
GB2512974A true GB2512974A (en) | 2014-10-15 |
Family
ID=50155380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1400976.5A Withdrawn GB2512974A (en) | 2013-02-04 | 2014-01-21 | Cordless curtain assembly |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140216664A1 (en) |
JP (1) | JP2014152601A (en) |
AU (1) | AU2013205981A1 (en) |
GB (1) | GB2512974A (en) |
TW (1) | TWM467724U (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203789657U (en) * | 2014-02-27 | 2014-08-27 | 亿丰综合工业股份有限公司 | Pulley-type curtain |
TW201544673A (en) * | 2014-05-26 | 2015-12-01 | Ya-Ying Lin | Strip-less rolling blind |
TWM496047U (en) * | 2014-06-25 | 2015-02-21 | Ching Feng Home Fashions Co | Adjusting structure of shutter body expanding length limit |
TWM506880U (en) * | 2014-11-18 | 2015-08-11 | Ya-Ling Huang | Rope-less curtain winding device |
US10221619B2 (en) | 2015-01-21 | 2019-03-05 | Nien Made Enterprise Co., Ltd. | Lifting device of cordless covering |
CN104832076B (en) * | 2015-06-05 | 2017-06-20 | 广州嘉伦橡塑有限公司 | A kind of Cordless curtain |
US9879476B2 (en) * | 2016-02-03 | 2018-01-30 | Guangzhou Garden Rubber & Plastic Co., Ltd. | Cordless curtain |
TWM535733U (en) * | 2016-08-09 | 2017-01-21 | Ching Feng Home Fashions Co | Rope-free curtain-body drawing structure |
CN215889877U (en) * | 2021-04-21 | 2022-02-22 | 亿丰综合工业股份有限公司 | Venetian blind |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2007100153A4 (en) * | 2007-02-27 | 2007-03-29 | Ching Feng Home Fashions Co., Ltd | Cordless window blind structure |
TWM444797U (en) * | 2012-09-11 | 2013-01-11 | Chun-Jan Hsu | Structure of window blind with no lift cord |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3291411B2 (en) * | 1995-05-23 | 2002-06-10 | 大阪金具株式会社 | Automatic door closing device |
US5937929A (en) * | 1997-11-06 | 1999-08-17 | Chen; Ing-Wen | Car curtain |
US6725897B2 (en) * | 2000-08-22 | 2004-04-27 | Newell Window Furnishings, Inc. | Variable friction device for a cordless blind |
TWM289318U (en) * | 2005-11-02 | 2006-04-11 | Ching Feng Home Fashions Co | Retracting-control curtain body structure of window curtain |
TWM289810U (en) * | 2005-11-30 | 2006-04-21 | Ching Feng Home Fashions Co | Rope-free window covering structure |
TWM290528U (en) * | 2005-12-07 | 2006-05-11 | Ching Feng Home Fashions Co | Structure of rope-free window blinds |
US7487817B2 (en) * | 2006-06-09 | 2009-02-10 | Ching Feng Home Fashions Co., Ltd. | Non-pull cord operable window blind structure |
US7686059B2 (en) * | 2006-09-05 | 2010-03-30 | Hunter Douglas Inc. | Top down/bottom up control system for retractable shade |
JP3134771U (en) * | 2007-06-13 | 2007-08-23 | 慶豐富實業股▲ふん▼有限公司 | Cordless blind structure |
US7984745B2 (en) * | 2007-12-20 | 2011-07-26 | Nien Made Enterprise Co., Ltd. | Cordless window blind structure |
-
2013
- 2013-02-04 TW TW102202402U patent/TWM467724U/en not_active IP Right Cessation
- 2013-03-16 US US13/844,829 patent/US20140216664A1/en not_active Abandoned
- 2013-05-22 AU AU2013205981A patent/AU2013205981A1/en not_active Abandoned
- 2013-08-23 JP JP2013173709A patent/JP2014152601A/en active Pending
-
2014
- 2014-01-21 GB GB1400976.5A patent/GB2512974A/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2007100153A4 (en) * | 2007-02-27 | 2007-03-29 | Ching Feng Home Fashions Co., Ltd | Cordless window blind structure |
TWM444797U (en) * | 2012-09-11 | 2013-01-11 | Chun-Jan Hsu | Structure of window blind with no lift cord |
Also Published As
Publication number | Publication date |
---|---|
GB201400976D0 (en) | 2014-03-05 |
AU2013205981A1 (en) | 2014-08-21 |
TWM467724U (en) | 2013-12-11 |
US20140216664A1 (en) | 2014-08-07 |
JP2014152601A (en) | 2014-08-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |