GB2487380A - Roller mechanism for a roller shade - Google Patents
Roller mechanism for a roller shade Download PDFInfo
- Publication number
- GB2487380A GB2487380A GB1100857.0A GB201100857A GB2487380A GB 2487380 A GB2487380 A GB 2487380A GB 201100857 A GB201100857 A GB 201100857A GB 2487380 A GB2487380 A GB 2487380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- end bracket
- roller
- support shaft
- winding mechanism
- stop plate
- 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- Withdrawn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
- 238000004804 winding Methods 0.000 claims abstract description 53
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
A roller shade assembly includes a first end bracket 11, a second end bracket 21, a winding mechanism 10, a follower 20, a roller 31, and a shading member 30. The winding mechanism includes a rotation member 12 rotatably mounted on the first end bracket, a mounting member 14 rotatable with the rotation member, and a stop plate 15 located between the roller and the rotation member to separate the roller and the shading member from the rotation member. Thus the shading member is limited by the stop plate and will not touch the rotation member, preventing the shading member being tangled with or twisted by the rotation member. The winding mechanism may be a ball chain 13. The second end bracket 21 may have a V shaped positioning slot 212 into which a support shaft with a tapered catch block 231 which abuts a tapered outer face of the positioning slot 212 so as the catch block does project outward from the positioning slot.
Description
ROLLER SHADE ASSEMBLY THAT IS OPERATED SMOOTHLY
WITHOUT INCURRING TANGLING OR TWISTING
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a window covering and, more particularly, to a roller shade assembly for a window.
2. Description of the Related Art
A conventional roller shade assembly for a window in accordance with the prior art shown in Figs. 5 and 6 comprises a first end bracket 41, a second end bracket 51 spaced from the first end bracket 41, a winding mechanism 40 mounted on the first end bracket 41, a follower 50 rotatably mounted on the second end bracket 51, a tubular roller 61 rotatably mounted between the winding mechanism 40 and the follower 50, and a shading member 60 wound around the roller 61. The winding mechanism 40 includes a rotation member 42 rotatably mounted on the first end bracket 41, and a ball chain 43 mounted on the rotation member 42 to rotate the rotation member 42.
The rotation member 42 is partially inserted into the roller 61. The follower 50 has a first side provided with a plug 53 inserted into the roller 61 and a second side provided with a rotation shaft 52 rotatably mounted on the second end bracket 51. The width of the shading member 60 is smaller than the length of the roller 61 to form two gaps "x" and "y" between the two opposite ends of the shading member 60 and the two opposite ends of the roller 61 so as to prevent the shading member 60 from being tangled with or twisted by the rotation member 42 and the ball chain 43 of the winding mechanism 40. In operation, when the ball chain 43 of the winding mechanism 40 is pulled, the rotation member 42 of the winding mechanism 40 is driven to rotate the roller 61 so that the roller 61 is rotated to wind or unwind the shading member 60. When the roller 61 is rotated, the follower 50 is also rotated, and the rotation shaft 52 is rotated on the second end bracket 51. However, when the shading member is rotated and moved by the roller 61, the shading member 60 is easily deflected and displaced toward the rotation member 42 and the ball chain 43 of the winding mechanism 40 so that the shading member 60 is easily tangled with or twisted by the rotation member 42 and the ball chain 43 of the winding mechanism 40, thereby affecting operation of the winding mechanism 40. In addition, the width of the shading member 60 is smaller than the length of the roller 61 to form two gaps "x" and "y" between the two opposite ends of the shading member 60 and the two opposite ends of the roller 61 so as to prevent the shading member 60 from being tangled with or twisted by the rotation member 42 and the ball chain 43 of the winding mechanism 40 so that the sunlight will permeate through the two gaps "x" and "y", thereby decreasing the shading effect of the shading member 60.
BRIEF SUMMARY OF THE INVENTION
In accordance with the present invention, there is provided a roller shade assembly, comprising a first end bracket, a second end bracket spaced from the first end bracket, a winding mechanism mounted on the first end bracket, a follower mounted on the second end bracket, a tubular roller rotatably mounted between the winding mechanism and the follower, and a shading member wound around the roller. The winding mechanism includes a rotation member rotatably mounted on the first end bracket, a mounting member connected with the rotation member to rotate in concert with the rotation member, and a stop plate mounted on the mounting member and located between the roller and the rotation member to separate the roller and the shading member from the rotation member.
The primary objective of the present invention is to provide a roller shade assembly that is operated smoothly without incurring tangling or twisting.
According to the primary advantage of the present invention, the shading member is limited between the stop plate and the second end bracket so that when the shading member is rotated and moved by the roller, the shading member is limited by the stop plate and will not directly touch the rotation member to prevent the shading member from being tangled with or twisted by the rotation member so as to facilitate operation of the winding mechanism.
According to another advantage of the present invention, the shading member is limited between the stop plate and the second end bracket and will not be tangled with or twisted by the rotation member so that the shading * member can be made to have a larger width that is flush with the distance between the stop plate and the second end bracket so as to enhance the shading effect of the shading member.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S) Fig. 1 is a perspective view of a roller shade assembly in accordance with the preferred embodiment of the present invention.
Fig. 2 is an exploded perspective view of the roller shade assembly as shown in Fig. 1.
Fig. 3 is a front cross-sectional view of the roller shade assembly as shown in Fig. 1.
Fig. 4 is a schematic operational view of the roller shade assembly as shown in Fig. 3 in use.
Fig. 5 is an exploded perspective view of a conventional roller shade
assembly in accordance with the prior art.
Fig. 6 is a front cross-sectional assembly view of the roller shade assembly as shown in Fig. 5.
DETAILED DESCRIPTION OF THE INVENTION
Referring to the drawings and initially to Figs. 1-3, a roller shade assembly for a window in accordance with the preferred embodiment of the present invention comprises a first end bracket 11, a second end bracket 21 spaced from the first end bracket 11, a winding mechanism 10 mounted on the first end bracket 11, a follower 20 mounted on the second end bracket 21, a tubular roller 31 rotatably mounted between the winding mechanism 10 and the follower 20, a shading member 30 wound around the roller 31, a support shaft 23 mounted on the second end bracket 21 and disposed in the follower 20, and a bearing 22 mounted between the support shaft 23 and the follower 20.
The winding mechanism 10 includes a rotation member 12 rotatably mounted on the first end bracket 11, a ball chain 13 mounted on the rotation member 12 to rotate the rotation member 12, a mounting member 14 connected with the rotation member 12 to rotate in concert with the rotation member 12, a stop plate 15 mounted on the mounting member 14 and located between the roller 31 and the rotation member 12 to separate the roller 31 and the shading member 30 from the rotation member 12, and a winding sleeve 16 mounted between the mounting member 14 and the roller 31 to rotate the roller 31 in concert with the rotation member 12.
The mounting member 14 of the winding mechanism 10 is inserted into the roller 31. The stop plate 15 of the winding mechanism 10 has two opposite sides each provided with a bent limit strip 151 abutting the first end bracket 11. The stop plate 15 of the winding mechanism 10 has an upper end 152 abutting a top side 110 of the first end bracket 11. The rotation member 12 of the winding mechanism 10 is covered by and limited between the stop plate and the first end bracket 11. The winding sleeve 16 of the winding mechanism 10 is secured on and rotated by the mounting member 14 and is inserted into the roller 31. The winding sleeve 16 of the winding mechanism 10 has an end portion 160 abutting the stop plate 15 to limit the stop plate 15 on the mounting member 14. The ball chain 13 of the winding mechanism 10 protrudes downward from the limit strip 151 of the stop plate 15.
The follower 20 is attached to the second end bracket 21 by the support shaft 23 and is rotatably mounted on the support shaft 23 by the bearing 22. The follower 20 is inserted into the roller 31. The bearing 22 is inserted into the follower 20.
The shading member 30 has a width flush with a length of the roller 31 and flush with a distance between the stop plate 15 and the second end bracket 21. The shading member 30 is limited between the stop plate 15 of the winding mechanism 10 and the second end bracket 21 and has a first end 32 abutting the stop plate 15 and a second end 33 abutting the second end bracket 21. The roller 31 is limited between the stop plate 15 of the winding mechanism 10 and the second end bracket 21.
The second end bracket 21 has a surface provided with a positioning slot 212 to position the support shaft 23. The positioning slot 212 of the second end bracket 21 has a substantially V-shaped profile and has a side provided with an entrance 211 to allow passage of the support shaft 23 into the * positioning slot 212. The positioning slot 212 of the second end bracket 21 has a an outer face provided with a tapered abutting face 2120.
The support shaft 23 is axially inserted into the bearing 22. The support shaft 23 is transversely extended through the entrance 211 into the s positioning slot 212 of the second end bracket 21 and is limited in the positioning slot 212 of the second end bracket 21. The support shaft 23 has an end portion provided with tapered catch block 231 fixed in the positioning slot 212 of the second end bracket 21 to affix the support shaft 23 to the second end bracket 21 so that the support shaft 23 is non-rotatable relative to the second end bracket 21. The tapered catch block 231 of the support shaft 23 abuts the tapered abutting face 2120 of the positioning slot 212 and is flush with the positioning slot 212 of the second end bracket 21 so that the tapered catch block 231 of the support shaft 23 does not project outward from the positioning slot 2 l of the second end bracket 21. The tapered catch block 231 of the support shaft 23 has a size greater than that of the support shaft 23.
In operation, referring to Figs. 3 and 4 with reference to Figs. 1 and 2, when the ball chain 13 of the winding mechanism 10 is pulled, the rotation member 12 of the winding mechanism 10 is driven to rotate the mounting member 14 which rotates the winding sleeve 16 which rotates the roller 31 so that the roller 31 is rotated to wind or unwind the shading member 30. When the roller 31 is rotated, the follower 20 is also rotated about the support shaft 23 so that the roller 31 is supported by the winding sleeve 16 and the follower 20 and is rotated in a balance manner.
Accordingly, the shading member 30 is limited between the stop plate 15 and the second end bracket 21 so that when the shading member 30 is rotated and moved by the roller 31, the shading member 30 is limited by the stop plate 15 and will not directly touch the rotation member 12 to prevent the shading member 30 from being tangled with or twisted by the rotation member 12 so as to facilitate operation of the winding mechanism 10. In addition, the shading member 30 is limited between the stop plate 15 and the second end bracket 21 and will not be tangled with or twisted by the rotation member 12 SO that the shading member 30 can be made to have a larger width that is flush with the distance between the stop plate 15 and the second end bracket 21 so as to enhance the shading effect of the shading member 30.
Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.
Claims (8)
- CLAIMSI. A roller shade assembly, comprising: a first end bracket; a second end bracket spaced from the first end bracket; a winding mechanism mounted on the first end bracket; a follower mounted on the second end bracket; a tubular roller rotatably mounted between the winding mechanism and the follower; and a shading member wound around the roller; wherein the winding mechanism includes: a rotation member rotatably mounted on the first end bracket; a mounting member connected with the rotation member to rotate in concert with the rotation member; and a stop plate mounted on the mounting member and located between *the roller and the rotation member to separate the roller and the shading member from the rotation member.
- 2. The roller shade assembly of claim 1, wherein the roller shade assembly further comprises: a support shaft mounted on the second end bracket and disposed in the follower; and a bearing mounted between the support shaft and the follower; the winding mechanism further includes: a ball chain mounted on the rotation member to rotate the rotation member; and a winding sleeve mounted between the mounting member and the roller to rotate the roller in concert with the rotation member; the shading member has a width flush with a length of the roller and flush with a distance between the stop plate and the second end bracket.
- 3. The roller shade assembly of claim 1, wherein the stop plate of the winding mechanism has two opposite sides each provided with a bent limit strip abutting the first end bracket.
- 4. The roller shade assembly of claim 2, wherein the second end bracket has a surface provided with a positioning slot to position the support shaft; the positioning slot of the second end bracket has a substantially V-shaped profile and has a side provided with an entrance to. allow passage of the support shaft into the positioning slot; the support shaft is transversely extended through the entrance into the positioning slot of the second end bracket and is limited in the positioning slot of the second end bracket; the support shaft has an end portion provided with tapered catch block fixed in the positioning slot of the second end bracket to affix the support shaft to the second end bracket so that the support shaft is non-rotatable relative to the second end bracket.
- 5. The roller shade assembly of claim 4, wherein the positioning slot of the second end bracket has a an outer face provided with a tapered abutting face; the tapered catch block of the support shaft abuts the tapered abutting face of the positioning slot and is flush with the positioning slot of the second end bracket so that the tapered catch block of the support shaft does not project outward from the positioning slot of the second end bracket; the tapered catch block of the support shaft has a size greater than that of the support shaft.
- 6. The roller shade assembly of claim 2, wherein the mounting member of the winding mechanism is inserted into the roller; the stop plate of the winding mechanism has an upper end abutting a top side of the first end bracket; the rotation member of the winding mechanism is covered by and limited between the stop plate and the first end bracket; the winding sleeve of the winding mechanism is secured on and rotated by the mounting member and is inserted into the roller; the winding sleeve of the winding mechanism has an end portion abutting the stop plate to limit the stop plate on the mounting member; the ball chain of the winding mechanism protrudes downward from the limit strip of the stop plate; the follower is attached to the second end bracket by the support shaft and is rotatably mounted on the support shaft by the bearing; the follower is inserted into the roller; the bearing is inserted into the follower; the support shaft is axially inserted into the bearing.
- 7. The roller shade assembly of claim 1, wherein the shading member is limited between the stop plate of the winding mechanism and the second end bracket and has a first end abutting the stop plate and a second end abutting the second end bracket; the roller is limited between the stop plate of the winding mechanism and the second end bracket.
- 8. A roller shade substantially as hereinbefore described with reference to and as shown in Figures 1 to 4 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1100857.0A GB2487380A (en) | 2011-01-19 | 2011-01-19 | Roller mechanism for a roller shade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1100857.0A GB2487380A (en) | 2011-01-19 | 2011-01-19 | Roller mechanism for a roller shade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201100857D0 GB201100857D0 (en) | 2011-03-02 |
| GB2487380A true GB2487380A (en) | 2012-07-25 |
Family
ID=43736624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1100857.0A Withdrawn GB2487380A (en) | 2011-01-19 | 2011-01-19 | Roller mechanism for a roller shade |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2487380A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016185436A1 (en) * | 2015-05-20 | 2016-11-24 | Coc Design (Hk) Limited | Shading assemblies and arrangements |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5927370A (en) * | 1997-11-18 | 1999-07-27 | Judkins; Ren | Release brake shade operator |
| GB2392946A (en) * | 2003-08-19 | 2004-03-17 | Louver Lite Ltd | Roller blind control unit |
| GB2406623A (en) * | 2003-10-01 | 2005-04-06 | Levolux At Ltd | A clutch mechanism for a roller blind |
| US20070007100A1 (en) * | 2005-07-08 | 2007-01-11 | Allsopp Reginald C | Centre-pin plug |
| DE202007007423U1 (en) * | 2007-05-24 | 2007-08-09 | Chen, Chen-Min, Putzu City | Winding device for light shielding blind, has carrier with base plate and supporting rod fastened at base plate, and rotating body rotatably arranged at carrier, where rotating disk of body is rotatably arranged at one end of rod |
| US20090014134A1 (en) * | 2007-07-13 | 2009-01-15 | Kenney Manufacturing Company | Energy efficient window shade |
-
2011
- 2011-01-19 GB GB1100857.0A patent/GB2487380A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5927370A (en) * | 1997-11-18 | 1999-07-27 | Judkins; Ren | Release brake shade operator |
| GB2392946A (en) * | 2003-08-19 | 2004-03-17 | Louver Lite Ltd | Roller blind control unit |
| GB2406623A (en) * | 2003-10-01 | 2005-04-06 | Levolux At Ltd | A clutch mechanism for a roller blind |
| US20070007100A1 (en) * | 2005-07-08 | 2007-01-11 | Allsopp Reginald C | Centre-pin plug |
| DE202007007423U1 (en) * | 2007-05-24 | 2007-08-09 | Chen, Chen-Min, Putzu City | Winding device for light shielding blind, has carrier with base plate and supporting rod fastened at base plate, and rotating body rotatably arranged at carrier, where rotating disk of body is rotatably arranged at one end of rod |
| US20090014134A1 (en) * | 2007-07-13 | 2009-01-15 | Kenney Manufacturing Company | Energy efficient window shade |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016185436A1 (en) * | 2015-05-20 | 2016-11-24 | Coc Design (Hk) Limited | Shading assemblies and arrangements |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201100857D0 (en) | 2011-03-02 |
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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) |