EP2777444A1 - Curtain driving assembly - Google Patents
Curtain driving assembly Download PDFInfo
- Publication number
- EP2777444A1 EP2777444A1 EP13158784.2A EP13158784A EP2777444A1 EP 2777444 A1 EP2777444 A1 EP 2777444A1 EP 13158784 A EP13158784 A EP 13158784A EP 2777444 A1 EP2777444 A1 EP 2777444A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flange
- chain wheel
- driving assembly
- chain
- cover
- 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
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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
- E06B9/40—Roller blinds
- E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
- E06B9/50—Bearings specially adapted therefor
Definitions
- the present invention relates to a curtain driving assembly, and more particularly, to a driving assembly wherein the bead chain is easily connected to the driving assembly and the steps for assembling is simplified.
- a conventional curtain driving assembly is shown in Fig. 6 and generally includes a bead chain seat 4, a mount 5 and a bead chain 6, wherein the bead chain seat 4 is pivotably connected with a chain wheel 41.
- a wall 42 extends from the chain seat 4 and is located around the chain wheel 41.
- the mount 5 is connected to the bead chain wheel 41 so as to position the chain wheel 41 located between the bead chain seat 4 and the mount 5.
- the mount 5 has a flange 51 located corresponding to the chain wheel 41.
- the bead chain 6 is wrapped to the bead chain seat 4 and does not drop from the bead chain seat 4 by the wall 42 and the flange 51.
- the steps for assembling the curtain driving assembly are complicated and inconvenient.
- the main driving set is always assembled firstly, and then the chosen bead chain 6 is installed to the chain wheel 41 of the main driving set by the consumers.
- the assemblers/consumers have to separate the bead chain seat 4 and the mount 5, or to forcibly bend the wall 42 and the flange 51 to install the bead chain 6.
- the former way may easily lose the parts, and the latter way may break the bead chain 6 by the wall 42 and/or the flange 51.
- the present invention relates to a curtain driving assembly and comprises a control set having a stationary seat and a chain wheel which is cooperated with a bead chain.
- the stationary seat has a shaft extending therefrom and a wall is located partially around the shaft so as to cover the bead chain.
- the chain wheel has a sleeve extending therefrom which is mounted to the shaft.
- a mount is mounted to the sleeve and has a flange.
- the flange is located corresponding to the stationary seat.
- At least one of the flange and the chain wheel has a lip so as to form a gap between the flange and the chain wheel.
- a cover is mounted to the chain wheel of the control set so as to cover the bead chain.
- the cover is a ring-shaped cover and has multiple engaging portions on the inside thereof. The engaging portions are installed in the gap and engaged with the flange.
- the shaft has a torsion spring mounted thereto which has two legs on two ends thereof.
- the sleeve has an opening defined axially therethrough so as to communicate with the inner space of the sleeve, and is located corresponding to the torsion spring.
- the sleeve has two contact edges on two ends defining the opening, and the two legs contact the two contact edges.
- the flange has a guide portion defined in the periphery thereof and the guide portion is an inclined face or a curved face so as to guide the engaging portions to install in the gap and engage with the flange.
- the cover has multiple stops which contact the wall of the stationary seat.
- the lip is a protrusion which extends outwardly from the flange and the chain wheel has a recess which accommodates the lip.
- the shaft of the stationary seat has an extension portion to which a cap is mounted.
- the cap contacts the mount.
- the primary object of the present invention is to provide a curtain driving assembly and the bead chain can be easily installed to the driving assembly after the driving assembly is initially assembled without repeatedly separating all of the parts or forcibly bent the wall.
- the bead chain does not drop by the wall and the cover.
- the curtain driving assembly of the present invention comprises a control set 1 having a stationary seat 11 and a chain wheel 12, wherein the stationary seat 11 has a shaft 111 extending therefrom and at least one torsion spring 112 is mounted to the shaft 111.
- the torsion spring 112 has two legs 113 on two ends thereof.
- the shaft 111 of the stationary seat 11 has an extension portion 114 to which a cap 115 is mounted.
- a wall 116 extends from the stationary seat 11 and is partially located around the shaft 111.
- the chain wheel 12 further has a sleeve 121 extending therefrom which is mounted to the shaft 111.
- the sleeve 121 has an opening 122 defined axially therethrough which is located corresponding to the torsion spring 112.
- the sleeve 121 has two contact edges 123 on two ends defining the opening 122, and the two legs 113 contact the two contact edges 123.
- the chain wheel 12 has a recess 124.
- a mount 2 is mounted to the sleeve 121 and located between the cap 115 and the chain wheel 12.
- the mount 2 has a flange 21 which is located corresponding to the chain wheel 12.
- At least one of the flange 21 and the chain wheel 12 has a lip 22 which, for example, is a protrusion.
- the lip 22 is located between the flange 21 and the chain wheel 12, so that a gap "S" is formed between the flange 21 and the chain wheel 12.
- the lip 22 extends from the flange 21 and is located corresponding to the recess 124.
- the lip 22 can also extend from the chain wheel 12.
- the flange 21 has a guide portion 23 defined in the periphery thereof and the guide portion 23 is an inclined face or a curved face.
- a cover 3 is installed on the chain wheel 12 of the control set 1 and has multiple stops 31 which contact the wall 116 of the stationary seat 11.
- the cover 3 is a ring-shaped cover and has multiple engaging portions 32a, 32b on the inside thereof.
- the shaft 111 when assembling, the shaft 111 is installed in the sleeve 121 and is pivotably connected to the sleeve 121.
- the mount 2 is then mounted to the sleeve 121 of the chain wheel 12, the cap 115 is then mounted to the extension portion 114 of the shaft 111 to clamp the mount 2 between the cap 15 and the chain wheel 12 to complete the initial assembling configuration.
- the control set 1 is connected with the mount 2 without assembling the cap 15.
- the bead chain “A” is connected to the chain wheel 12.
- the radial width of the flange 21 is smaller than the radial width of the chain wheel 12, so that when installing the bead chain “A” to the initial assembling configuration, the bead chain “A” can be easily assembled to the chain wheel 12.
- the bead chain “A” when assembling the bead chain “A” to the chain wheel 12, the bead chain “A” is firstly partially engaged in the chain wheel 12 and preferably forms a pulling portion and a follow-on engaging portion which are not engaged with the chain wheel 12 (not shown), and then the pulling portion of the bead chain “A” is pulled so as to rotate the chain wheel 12, and simultaneously the rotation of the chain wheel 12 gradually wraps the follow-on engaging portion of the bead chain “A” as shown in Fig. 4 .
- the bead chain “A” can be installed to the control set 1 after the initial assembling configuration is completed and does not have to bend the wall 116 or separate the parts to install the bead chain "A".
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
Description
- The present invention relates to a curtain driving assembly, and more particularly, to a driving assembly wherein the bead chain is easily connected to the driving assembly and the steps for assembling is simplified.
- A conventional curtain driving assembly is shown in
Fig. 6 and generally includes abead chain seat 4, amount 5 and abead chain 6, wherein thebead chain seat 4 is pivotably connected with achain wheel 41. Awall 42 extends from thechain seat 4 and is located around thechain wheel 41. Themount 5 is connected to thebead chain wheel 41 so as to position thechain wheel 41 located between thebead chain seat 4 and themount 5. Themount 5 has aflange 51 located corresponding to thechain wheel 41. Thebead chain 6 is wrapped to thebead chain seat 4 and does not drop from thebead chain seat 4 by thewall 42 and theflange 51. - However, the steps for assembling the curtain driving assembly are complicated and inconvenient. In the present time, concerning the requirements of the consumers on the flexibility for choosing the
bead chain 6 from various specifications and types, and to avoid the inconvenience to the consumers from assembling thebead chain seat 4,chain wheel 41 and themount 5 to be a main driving set by themselves, the main driving set is always assembled firstly, and then the chosenbead chain 6 is installed to thechain wheel 41 of the main driving set by the consumers. Because thewall 42 and theflange 51 block thebead chain 6 from assembling to thechain wheel 41, the assemblers/consumers have to separate thebead chain seat 4 and themount 5, or to forcibly bend thewall 42 and theflange 51 to install thebead chain 6. The former way may easily lose the parts, and the latter way may break thebead chain 6 by thewall 42 and/or theflange 51. - The present invention relates to a curtain driving assembly and comprises a control set having a stationary seat and a chain wheel which is cooperated with a bead chain. The stationary seat has a shaft extending therefrom and a wall is located partially around the shaft so as to cover the bead chain. The chain wheel has a sleeve extending therefrom which is mounted to the shaft. A mount is mounted to the sleeve and has a flange. The flange is located corresponding to the stationary seat. At least one of the flange and the chain wheel has a lip so as to form a gap between the flange and the chain wheel. A cover is mounted to the chain wheel of the control set so as to cover the bead chain. The cover is a ring-shaped cover and has multiple engaging portions on the inside thereof. The engaging portions are installed in the gap and engaged with the flange.
- Preferably, the shaft has a torsion spring mounted thereto which has two legs on two ends thereof. The sleeve has an opening defined axially therethrough so as to communicate with the inner space of the sleeve, and is located corresponding to the torsion spring. The sleeve has two contact edges on two ends defining the opening, and the two legs contact the two contact edges.
- Preferably, the flange has a guide portion defined in the periphery thereof and the guide portion is an inclined face or a curved face so as to guide the engaging portions to install in the gap and engage with the flange.
- Preferably, the cover has multiple stops which contact the wall of the stationary seat.
- Preferably, the lip is a protrusion which extends outwardly from the flange and the chain wheel has a recess which accommodates the lip.
- Preferably, the shaft of the stationary seat has an extension portion to which a cap is mounted. The cap contacts the mount.
- The primary object of the present invention is to provide a curtain driving assembly and the bead chain can be easily installed to the driving assembly after the driving assembly is initially assembled without repeatedly separating all of the parts or forcibly bent the wall. The bead chain does not drop by the wall and the cover.
- 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 preferred embodiment in accordance with the present invention.
-
-
Fig. 1 is an exploded view to show the curtain driving assembly of the present invention; -
Fig. 2 is a perspective view to show the curtain driving assembly of the present invention; -
Fig. 3 is a partial cross sectional view of the curtain driving assembly of the present invention; -
Fig. 4 shows the assembling configuration of the bead chain connecting to the initial assembling configuration of the curtain driving assembly of the present invention; -
Fig. 5 shows the assembling configuration of the cover connecting to the initial assembling configuration of the curtain driving assembly of the present invention, and -
Fig. 6 shows the assembling configuration of the bead chain connecting to the conventional main driving set of the curtain driving assembly. - Referring to
Figs. 1 to 3 , the curtain driving assembly of the present invention comprises a control set 1 having astationary seat 11 and achain wheel 12, wherein thestationary seat 11 has ashaft 111 extending therefrom and at least onetorsion spring 112 is mounted to theshaft 111. Thetorsion spring 112 has twolegs 113 on two ends thereof. Theshaft 111 of thestationary seat 11 has anextension portion 114 to which acap 115 is mounted. Awall 116 extends from thestationary seat 11 and is partially located around theshaft 111. Thechain wheel 12 further has asleeve 121 extending therefrom which is mounted to theshaft 111. Thesleeve 121 has an opening 122 defined axially therethrough which is located corresponding to thetorsion spring 112. Thesleeve 121 has twocontact edges 123 on two ends defining theopening 122, and the twolegs 113 contact the twocontact edges 123. Thechain wheel 12 has arecess 124. - A
mount 2 is mounted to thesleeve 121 and located between thecap 115 and thechain wheel 12. Themount 2 has aflange 21 which is located corresponding to thechain wheel 12. At least one of theflange 21 and thechain wheel 12 has alip 22 which, for example, is a protrusion. Thelip 22 is located between theflange 21 and thechain wheel 12, so that a gap "S" is formed between theflange 21 and thechain wheel 12. In this embodiment, thelip 22 extends from theflange 21 and is located corresponding to therecess 124. Alternatively, thelip 22 can also extend from thechain wheel 12. Theflange 21 has aguide portion 23 defined in the periphery thereof and theguide portion 23 is an inclined face or a curved face. - A
cover 3 is installed on thechain wheel 12 of thecontrol set 1 and hasmultiple stops 31 which contact thewall 116 of thestationary seat 11. Thecover 3 is a ring-shaped cover and has multipleengaging portions - As shown in
Figs. 1 and5 , when assembling, theshaft 111 is installed in thesleeve 121 and is pivotably connected to thesleeve 121. Thelegs 113 of thetorsion spring 112, extending in theopening 122, contact thecontact edges 123 of thesleeve 121. Themount 2 is then mounted to thesleeve 121 of thechain wheel 12, thecap 115 is then mounted to theextension portion 114 of theshaft 111 to clamp themount 2 between the cap 15 and thechain wheel 12 to complete the initial assembling configuration. Preferably, in another initial assembling configuration, thecontrol set 1 is connected with themount 2 without assembling the cap 15. After the desired bead chain "A" is chosen, the bead chain "A" is connected to thechain wheel 12. Preferably, the radial width of theflange 21 is smaller than the radial width of thechain wheel 12, so that when installing the bead chain "A" to the initial assembling configuration, the bead chain "A" can be easily assembled to thechain wheel 12. More specifically, when assembling the bead chain "A" to thechain wheel 12, the bead chain "A" is firstly partially engaged in thechain wheel 12 and preferably forms a pulling portion and a follow-on engaging portion which are not engaged with the chain wheel 12 (not shown), and then the pulling portion of the bead chain "A" is pulled so as to rotate thechain wheel 12, and simultaneously the rotation of thechain wheel 12 gradually wraps the follow-on engaging portion of the bead chain "A" as shown inFig. 4 . By the above-mentioned arrangement, the bead chain "A" can be installed to the control set 1 after the initial assembling configuration is completed and does not have to bend thewall 116 or separate the parts to install the bead chain "A". Further, after the bead chain "A" or the follow-on portion of the bead chain "A", adjacent to the wall 16, is engaged in thechain wheel 12, thecover 3 is then mounted to theflange 21 as shown inFig. 5 . More specifically, when thecover 3 is mounted/pressed on thechain wheel 12, the engagingportions flange 21.
Consequently, the curtain driving assembly is completely assembled. The bead chain "A" is prevented from being disengaged from the control set 1 by thewall 116 and thecover 3. - 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 (7)
- A curtain driving assembly comprising: a control set (1) and a mount (2), the control set (1) having a stationary seat (11) and a chain wheel (12) with which a bead chain (A) is engaged, the stationary seat (11) having a shaft (111) extending therefrom and a wall (116) which is located partially around the shaft (111) so as to be configured to cover the bead chain (A), the chain wheel (12) having a sleeve (121) extending therefrom which is mounted to the shaft (111); characterized in that the mount (2) is mounted to the sleeve (121) and has a flange (21), the flange (21) is located corresponding to the chain wheel (12), at least one of the flange (21) and the chain wheel (12) has a lip (22) so as to form a gap (S) between the flange (21) and the chain wheel (12), a cover (3) is mounted to the chain wheel (12) of the control set (1) so as to be configured to cover the bead chain (A), the cover (3) is a ring-shaped cover and has multiple engaging portions (32a, 32b) on an inside thereof, the engaging portions (32a, 32b) are installed in the gap (S) and engaged with the flange (21).
- The driving assembly as claimed in claim 1, wherein the shaft (111) has at least one torsion spring (112) mounted thereto which has two legs (113) on two ends thereof, the sleeve (121) has an opening (122) defined axially therethrough, the opening (122) located corresponding to the torsion spring (112), the sleeve (121) has two contact edges (123) on two ends defining the opening (122), and the two legs (113) contact the two contact edges (123).
- The driving assembly as claimed in claim 1, wherein the flange (21) has a guide portion (23) defined in a periphery thereof and the guide portion (23) is an inclined face or a curved face so as to guide the engaging portions (32a, 32b) to install in the gap (S) and engaged with the flange (21).
- The driving assembly as claimed in claim 1, wherein the cover (3) has multiple stops (31) which contact the wall (116) of the stationary seat (11).
- The driving assembly as claimed in claim 1, wherein the lip (22) is a protrusion which extends outwardly from the flange (21), the chain wheel (12) has a recess (124) which accommodates the lip (22).
- The driving assembly as claimed in claim 1, wherein the shaft (111) of the stationary seat (11) has an extension portion (114) to which a cap (115) is mounted, the cap (115) contacts the mount (5).
- The driving assembly as claimed in claim 1, wherein the radial width of the flange (21) is smaller than the radial width of the chain wheel (12).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20130158784 EP2777444B1 (en) | 2013-03-12 | 2013-03-12 | Curtain driving assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20130158784 EP2777444B1 (en) | 2013-03-12 | 2013-03-12 | Curtain driving assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2777444A1 true EP2777444A1 (en) | 2014-09-17 |
EP2777444B1 EP2777444B1 (en) | 2015-05-06 |
Family
ID=47891424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20130158784 Not-in-force EP2777444B1 (en) | 2013-03-12 | 2013-03-12 | Curtain driving assembly |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2777444B1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6739373B1 (en) * | 2003-03-10 | 2004-05-25 | Tai-Ping Liu | Lift control device for a roller shade |
US20070007100A1 (en) * | 2005-07-08 | 2007-01-11 | Allsopp Reginald C | Centre-pin plug |
AU2010100124A4 (en) * | 2009-02-09 | 2010-03-04 | Acmeda Pty Ltd | A Winder |
EP2284353A2 (en) * | 2009-08-13 | 2011-02-16 | Turnils (UK) Limited | Locking system for blinds |
AU2012101288A4 (en) * | 2012-08-23 | 2012-09-27 | Yi-Chin Tao | Scrolling device for curtain |
DE202010017913U1 (en) * | 2010-11-26 | 2013-02-14 | Mottura S.P.A. | Device for actuating a roller blind |
-
2013
- 2013-03-12 EP EP20130158784 patent/EP2777444B1/en not_active Not-in-force
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6739373B1 (en) * | 2003-03-10 | 2004-05-25 | Tai-Ping Liu | Lift control device for a roller shade |
US20070007100A1 (en) * | 2005-07-08 | 2007-01-11 | Allsopp Reginald C | Centre-pin plug |
AU2010100124A4 (en) * | 2009-02-09 | 2010-03-04 | Acmeda Pty Ltd | A Winder |
EP2284353A2 (en) * | 2009-08-13 | 2011-02-16 | Turnils (UK) Limited | Locking system for blinds |
DE202010017913U1 (en) * | 2010-11-26 | 2013-02-14 | Mottura S.P.A. | Device for actuating a roller blind |
AU2012101288A4 (en) * | 2012-08-23 | 2012-09-27 | Yi-Chin Tao | Scrolling device for curtain |
Also Published As
Publication number | Publication date |
---|---|
EP2777444B1 (en) | 2015-05-06 |
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