WO2006102894A1 - A device for fine adjustment of roller blinds - Google Patents

A device for fine adjustment of roller blinds Download PDF

Info

Publication number
WO2006102894A1
WO2006102894A1 PCT/DK2006/000174 DK2006000174W WO2006102894A1 WO 2006102894 A1 WO2006102894 A1 WO 2006102894A1 DK 2006000174 W DK2006000174 W DK 2006000174W WO 2006102894 A1 WO2006102894 A1 WO 2006102894A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller blind
drive shaft
fine adjustment
roller
unwrap spring
Prior art date
Application number
PCT/DK2006/000174
Other languages
French (fr)
Inventor
Ken Rasmussen
Original Assignee
Faber A/S
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 Faber A/S filed Critical Faber A/S
Priority to CA2604989A priority Critical patent/CA2604989C/en
Priority to US11/910,804 priority patent/US7891399B2/en
Priority to EP06722867A priority patent/EP1893841B1/en
Priority to AU2006228865A priority patent/AU2006228865B2/en
Publication of WO2006102894A1 publication Critical patent/WO2006102894A1/en
Priority to NO20075360A priority patent/NO20075360L/en
Priority to US13/032,003 priority patent/US8403020B2/en

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
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E06B9/50—Bearings specially adapted 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
    • E06B9/40—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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions
    • E06B2009/905—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions using wrap spring clutches

Definitions

  • a device for fine adjustment of roller blinds is provided.
  • the invention relates to a device for fine adjustment of at least one roller blind relative to a driving shaft comprising a roller blind tube with two end plugs and a drive shaft in engagement with at least one end plug.
  • a number of roller blinds for use in very long window openings may be manipulated synchronously by driving the outermost roller blind at one side and to transmit the rotation from one to the next, there being bearing brackets with bearings provided between the roller blinds. Frequently, the end plugs will engage small pieces of drive shaft that are carried in the bearing brackets.
  • An uncoupling between two tubes may occur by sideways shifting of a cylindrical bushing that engages both tubes, in order that the tubes may be turned independently.
  • a bearing bracket between the tubes.
  • the bearing bracket carries a short piece of shaft between the tubes mentioned and is essential to retain the straightness of the axis of rotation, even though it is long.
  • An uncoupling may be obtained in this case in that a bushing with a grub screw connects one of the roller blind tubes with the piece of shaft.
  • Such a bushing may be loosened by loosening the grub screw, the adjustment may be performed, and the grub screw is tightened again.
  • An adjustment device that does not require tools or requirements for the placement of a control unit is particular according to the invention, in that one end plug consists of several parts, some of which may under certain circumstances be rotated with respect to each other, comprising a central part that is surrounded by an unwrap spring having means for engagement with a surrounding part during tightening of the unwrap spring and in that a rotatable control element has means for engaging the unwrap spring in order to loosen it, whereby the roller blind becomes un-coupled from the drive shaft. It will be noted that the rotation of the control element both un- couples the roller blind and turns for fine adjustment in the same movement.
  • the drive shaft is in this case fitted between two end plugs, of which one is fixed and belongs to a first roller blind, and the second belongs to a second roller blind and consists of several parts, in which the drive shaft that is carried by a bearing bracket connects the two end plugs.
  • unwrap spring has outwards protruding elements that cooperate with an inwards projecting part on the control element therebetween for loosening of the unwrap spring.
  • the control element has a negligible increase in diameter with respect to the roller blind.
  • Fig. 1 shows two roller blinds side by side with a difference in height
  • Fig. 2 shows an arrangement for adjustable coupling of two roller blinds
  • Fig. 3 shows an end plug in several parts with the components it consists of for obtaining adjustability.
  • Fig. 1 In Fig. 1 is seen a first roller blind 1 with a carrier tube (I 1 ) inside, a bearing bracket 2, a second roller blind 3 that also has a carrier tube (3') inside.
  • the roller blinds are almost completely raised, but there is a difference in height, because the section 1 " is further up than the section 3". Without demonstrating how it is obtained, the functionality is shown that turning the ring 4 may un-couple the roller blind 1, while the end 1 " may be raised or lowered. Turning occurs in the direction that entails elimination of the height difference.
  • Fig. 2 is seen an exploded drawing of a connection in greater detail. It is seen that the carrier tube 1 ' is finished by an end plug 5 that has a rotation transmitting hole 5', in which is fitted one end 6' of a drive shaft 6 that is carried by the bearing bracket 2. The other end 6" is also profiled to transmit rotation, and it engages a second end plug 7 that finishes a carrier tube 3', that is not shown, of the neighbouring roller blind.
  • This end plug consists of several parts, as shown in greater detail in Fig. 3.
  • the end plug 7 is a hollow construction consisting of the inner part T that cooperates with the end 6" of the drive shaft and a surrounding part 7" that cooperates with the not shown roller blind tube 3'.
  • the two parts 7' and 7" may rotate with respect to each other but are prevented from it by an unwrap spring 8. This is placed on an intermediate tube 9 that is secured against rotation on its placement on the inner part T by means of axial protrusions or keys 9'.
  • the unwrap spring 8 grips the intermediate tube 9 firmly, and its outwards directed parts 8' and 8" are placed between the abutments 10 and 10' on the surrounding part, which means that the surrounding part 7" cannot rotate more with respect to the inner part 7' than the space between 8', 8" and the abutments 10, 10'.
  • the action on the unwrap spring is against its direction of winding, and hence it is loosened.

Abstract

Two neigbouring roller blinds on the same drive shaft may be adjusted with respect to each other by letting one end plug comprise an un-coupling device. This un-coupling device may advantageously be made by means of an unwrap spring that is actuated by means of a ring that surrounds one end plug.

Description

A device for fine adjustment of roller blinds.
The invention relates to a device for fine adjustment of at least one roller blind relative to a driving shaft comprising a roller blind tube with two end plugs and a drive shaft in engagement with at least one end plug.
A number of roller blinds for use in very long window openings may be manipulated synchronously by driving the outermost roller blind at one side and to transmit the rotation from one to the next, there being bearing brackets with bearings provided between the roller blinds. Frequently, the end plugs will engage small pieces of drive shaft that are carried in the bearing brackets.
However, differences in the rolling that have occurred during installation may entail that some of the roller blinds fitted hang lower and cannot be raised completely, because the drive motor stops when the first roller blind has reached its upmost position. There is hence a need to turn a neighbouring roller blind in order that it may be fine-adjusted independently of the others. This must occur by uncoupling the force transmitting element between the roller blind tubes.
An uncoupling between two tubes may occur by sideways shifting of a cylindrical bushing that engages both tubes, in order that the tubes may be turned independently. Such a solution cannot be used, however, when there is fitted a bearing bracket between the tubes. The bearing bracket carries a short piece of shaft between the tubes mentioned and is essential to retain the straightness of the axis of rotation, even though it is long. An uncoupling may be obtained in this case in that a bushing with a grub screw connects one of the roller blind tubes with the piece of shaft. Such a bushing may be loosened by loosening the grub screw, the adjustment may be performed, and the grub screw is tightened again. This is a solution that requires tools and furthermore that the grub screw is accessible, i.e. facing the room in which the roller blind is placed. This means that when adjusting, the roller blind must be lowered until the grub screw is accessible. Furthermore, a grub screw for fine adjustment must work against a cylindrical part of a shaft. However, drive shafts for roller blinds frequently have a polygonous cross section in order to transmit a torque.
Hence there must be a part of a drive shaft that needs special machining in order to provide a cylindrical surface, and this is costly. A lowering in this situation would occur by means of the usual control unit, which is frequently fixed in one place, while the adjustment must occur between the two roller blinds that do not have the same rolled length. The two activities may rarely be performed without the need for the operator to move from one place to the other.
There is hence a need for a fine-adjusting element that is capable of uncoupling a roller blind from a shaft during the fine adjustment and without the use of tools.
An adjustment device that does not require tools or requirements for the placement of a control unit is particular according to the invention, in that one end plug consists of several parts, some of which may under certain circumstances be rotated with respect to each other, comprising a central part that is surrounded by an unwrap spring having means for engagement with a surrounding part during tightening of the unwrap spring and in that a rotatable control element has means for engaging the unwrap spring in order to loosen it, whereby the roller blind becomes un-coupled from the drive shaft. It will be noted that the rotation of the control element both un- couples the roller blind and turns for fine adjustment in the same movement.
An embodiment of the invention that is particularly useful for solving the fine adjustment problem described above regarding two consecutive roller blinds. The drive shaft is in this case fitted between two end plugs, of which one is fixed and belongs to a first roller blind, and the second belongs to a second roller blind and consists of several parts, in which the drive shaft that is carried by a bearing bracket connects the two end plugs.
In connection with adjustment of limit switches it may be advantageous to be able to adjust also the first roller blind, and according to an embodiment of the invention this may occur by letting the drive shaft connect an end plug consisting of several parts and a motor drive for the roller blind. A motor drive, in which a limit switch has disconnected the current will act as a fixed connection to the surroundings, and it is relative to this fixed connection that it may be desirable to adjust the height of the roller blind.
There are possibilities for various configurations of unwrap spring and the means used for loosening and tightening, respectively. It has been found to be particularly advantageous in a fine adjustment device according to the invention that the unwrap spring has outwards protruding elements that cooperate with an inwards projecting part on the control element therebetween for loosening of the unwrap spring. Hereby a particularly compact construction is obtained, in which the control element has a negligible increase in diameter with respect to the roller blind.
The invention will be described in greater detail in the following with reference to the drawing, in which
Fig. 1 shows two roller blinds side by side with a difference in height,
Fig. 2 shows an arrangement for adjustable coupling of two roller blinds, and
Fig. 3 shows an end plug in several parts with the components it consists of for obtaining adjustability.
In Fig. 1 is seen a first roller blind 1 with a carrier tube (I1) inside, a bearing bracket 2, a second roller blind 3 that also has a carrier tube (3') inside. The roller blinds are almost completely raised, but there is a difference in height, because the section 1 " is further up than the section 3". Without demonstrating how it is obtained, the functionality is shown that turning the ring 4 may un-couple the roller blind 1, while the end 1 " may be raised or lowered. Turning occurs in the direction that entails elimination of the height difference.
In Fig. 2 is seen an exploded drawing of a connection in greater detail. It is seen that the carrier tube 1 ' is finished by an end plug 5 that has a rotation transmitting hole 5', in which is fitted one end 6' of a drive shaft 6 that is carried by the bearing bracket 2. The other end 6" is also profiled to transmit rotation, and it engages a second end plug 7 that finishes a carrier tube 3', that is not shown, of the neighbouring roller blind. This end plug consists of several parts, as shown in greater detail in Fig. 3.
In Fig. 3 it is shown that the end plug 7 is a hollow construction consisting of the inner part T that cooperates with the end 6" of the drive shaft and a surrounding part 7" that cooperates with the not shown roller blind tube 3'. The two parts 7' and 7" may rotate with respect to each other but are prevented from it by an unwrap spring 8. This is placed on an intermediate tube 9 that is secured against rotation on its placement on the inner part T by means of axial protrusions or keys 9'. The unwrap spring 8 grips the intermediate tube 9 firmly, and its outwards directed parts 8' and 8" are placed between the abutments 10 and 10' on the surrounding part, which means that the surrounding part 7" cannot rotate more with respect to the inner part 7' than the space between 8', 8" and the abutments 10, 10'. However, the ring 4 which surrounds the surrounding part 7" and hence the unwrap spring 8, an inwards directed projection 4' that is placed between the two outwards directed parts 8', 8", and by turning in one or the other direction the unwrap spring is loosened, and the surrounding part 7" that is firmly joined to the first roller blind may rotated with respect to the inner part T that via the the drive shaft is connected to the second roller blind. The action on the unwrap spring is against its direction of winding, and hence it is loosened.
Several configurations of unwrap spring and surfaces for acting on its outwards or inwards facing ends may be manufactured, and the one above described is only one embodiment that has been shown to work well in practice.

Claims

1. A device for fine adjustment of at least one roller blind (3) relative to a driving shaft comprising a roller blind tube belonging to the roller blind (3) with two end plugs and a drive shaft (6) in engagement with at least one end plug (7), characterized in that one end plug (7) consists of several parts, some of which (T, 7") may under certain circumstances be rotated with respect to each other, comprising a central part (7') that is surrounded by an unwrap spring (8) having means (8'58") for engagement with a surrounding part (7") during tightening of the unwrap spring (8) and in that a rotatable control element (4) has means (4') for engaging the unwrap spring (8) in order to loosen it, whereby the roller blind (3) becomes un-coupled from the drive shaft (6).
2. A device for fine adjustment according to claim 1 for fine adjustment of roller blinds that are disposed consecutively and which are reliable around the same axis, characterized in that the drive shaft (6) is fitted between two end plugs, of which the first (5) is fixed to and belongs to a first roller blind (1), and the second belongs to a second roller blind (3) and consists of several parts (7', 7"), whereby the drive shaft (6) carried by a bearing bracket (2) connects the two end plugs (5,7).
3. An adjustment device according to claim 1, characterized in that the drive shaft (6) connects an end plug (7) consisting of several parts and a motor drive for the roller blind (3).
4. An adjustment device according to claim 1, characterized in that the unwrap spring (8) has outwards protruding elements (8', 8") that cooperate with an inwards projecting part (4') on the control element (4) therebetween for loosening of the unwrap spring (8).
PCT/DK2006/000174 2005-03-29 2006-03-28 A device for fine adjustment of roller blinds WO2006102894A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA2604989A CA2604989C (en) 2005-03-29 2006-03-28 A device for fine adjustment of roller blinds
US11/910,804 US7891399B2 (en) 2005-03-29 2006-03-28 Device for fine adjustment of roller blinds
EP06722867A EP1893841B1 (en) 2005-03-29 2006-03-28 A device for fine adjustment of roller blinds
AU2006228865A AU2006228865B2 (en) 2005-03-29 2006-03-28 A device for fine adjustment of roller blinds
NO20075360A NO20075360L (en) 2005-03-29 2007-10-19 Device for fine adjustment of blinds
US13/032,003 US8403020B2 (en) 2005-03-29 2011-02-22 Device for fine adjustment of roller blinds

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200500465 2005-03-29
DKPA200500465 2005-03-29

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US11/910,804 A-371-Of-International US7891399B2 (en) 2005-03-29 2006-03-28 Device for fine adjustment of roller blinds
US13/032,003 Continuation US8403020B2 (en) 2005-03-29 2011-02-22 Device for fine adjustment of roller blinds

Publications (1)

Publication Number Publication Date
WO2006102894A1 true WO2006102894A1 (en) 2006-10-05

Family

ID=37052952

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2006/000174 WO2006102894A1 (en) 2005-03-29 2006-03-28 A device for fine adjustment of roller blinds

Country Status (6)

Country Link
US (2) US7891399B2 (en)
EP (1) EP1893841B1 (en)
AU (1) AU2006228865B2 (en)
CA (1) CA2604989C (en)
NO (1) NO20075360L (en)
WO (1) WO2006102894A1 (en)

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WO2008049431A1 (en) * 2006-10-26 2008-05-02 Faber A/S A bearing insert fitting for roller blinds
EP1936107A2 (en) 2006-12-21 2008-06-25 Hunter Douglas Industries B.V. Adjustable drive coupling for adjacent architectural coverings
CN101205795B (en) * 2006-12-21 2012-01-04 荷兰亨特工业有限公司 Adjustable drive coupling for adjacent architectural coverings
WO2016132276A1 (en) 2015-02-18 2016-08-25 Renson Sunprotection-Screens Nv Screen device
JP7267515B1 (en) 2020-05-12 2023-05-01 レンソン サンプロテクション－スクリーンズ エンフェー System for mounting roll-type screens

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US8575872B2 (en) 2010-02-23 2013-11-05 Homerun Holdings Corporation High efficiency roller shade and method for setting artificial stops
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WO2014169093A1 (en) * 2013-04-11 2014-10-16 Qmotion Incorporated Motorized drapery apparatus, system and method of use
AU2012101665A4 (en) * 2012-11-09 2012-12-06 Acmeda Pty Ltd Improved winder assembly
TWM467417U (en) * 2013-01-07 2013-12-11 zhe-wen Zhou Installation component for dual roller blinds
US9279286B2 (en) * 2013-03-14 2016-03-08 QMotion, Incorporated Methods and systems for mechanically operating a group of shades or blinds
KR101309167B1 (en) * 2013-04-17 2013-09-23 (주)준쉐이드 Electric blind apparatus
WO2015009565A2 (en) * 2013-07-19 2015-01-22 Qmotion Incorporated Motorized drapery apparatus with batteries positioned in the brackets
US20160053537A1 (en) * 2014-08-22 2016-02-25 Shawn Dybdahl High efficiency system and method for controlling one or more roller shades
US10323793B2 (en) * 2016-05-04 2019-06-18 Windowcraft, Inc. Mounting bracket
US10017984B2 (en) * 2016-06-15 2018-07-10 Tribute Window Coverings Inc. Apparatus for supporting blind rollers
CN106193979B (en) * 2016-08-29 2017-12-12 无锡市绿色情丝帘业有限公司 A kind of torque force adjusting mechanism and its structure of rolling
DE202016106026U1 (en) * 2016-10-26 2018-01-28 Mhz Hachtel Gmbh & Co. Kg Shading system with at least two shading devices arranged side by side
CA3012256A1 (en) * 2017-07-31 2019-01-31 Zmc Metal Coating Inc. Adjustment and alignment system for a roller blind
US11655673B2 (en) 2018-10-16 2023-05-23 Mechoshade Systems, Llc Drive hub dampening posts
US11261661B2 (en) 2018-10-16 2022-03-01 Mechoshade Systems, Llc Roller shade system
CN111489843B (en) * 2020-04-28 2022-02-18 中国人民解放军总医院第八医学中心 Medical radiation protection device
US11965380B2 (en) 2021-09-10 2024-04-23 Draper, Inc. Idler bracket for roller shade

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008049431A1 (en) * 2006-10-26 2008-05-02 Faber A/S A bearing insert fitting for roller blinds
EP1936107A2 (en) 2006-12-21 2008-06-25 Hunter Douglas Industries B.V. Adjustable drive coupling for adjacent architectural coverings
CN101205795B (en) * 2006-12-21 2012-01-04 荷兰亨特工业有限公司 Adjustable drive coupling for adjacent architectural coverings
WO2016132276A1 (en) 2015-02-18 2016-08-25 Renson Sunprotection-Screens Nv Screen device
JP7267515B1 (en) 2020-05-12 2023-05-01 レンソン サンプロテクション－スクリーンズ エンフェー System for mounting roll-type screens
JP2023519764A (en) * 2020-05-12 2023-05-12 レンソン サンプロテクション－スクリーンズ エンフェー System for mounting roll-type screens

Also Published As

Publication number Publication date
AU2006228865A1 (en) 2006-10-05
CA2604989A1 (en) 2006-10-05
EP1893841A4 (en) 2011-04-13
AU2006228865B2 (en) 2012-04-12
EP1893841A1 (en) 2008-03-05
EP1893841B1 (en) 2012-06-13
US20090090474A1 (en) 2009-04-09
NO20075360L (en) 2007-10-19
US7891399B2 (en) 2011-02-22
US8403020B2 (en) 2013-03-26
CA2604989C (en) 2013-10-01
US20120043032A1 (en) 2012-02-23

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