EP3143232A1 - Device for rotating the shaft of a roller blind - Google Patents

Device for rotating the shaft of a roller blind

Info

Publication number
EP3143232A1
EP3143232A1 EP15726365.8A EP15726365A EP3143232A1 EP 3143232 A1 EP3143232 A1 EP 3143232A1 EP 15726365 A EP15726365 A EP 15726365A EP 3143232 A1 EP3143232 A1 EP 3143232A1
Authority
EP
European Patent Office
Prior art keywords
roller
housing
shaft
chain
coupling member
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
Application number
EP15726365.8A
Other languages
German (de)
French (fr)
Other versions
EP3143232B1 (en
Inventor
Henricus Wilhelmus Frederikus Bosgoed
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.)
Forest Group Nederland BV
Original Assignee
Forest Group Nederland BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=51266387&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3143232(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Forest Group Nederland BV filed Critical Forest Group Nederland BV
Priority to PL15726365T priority Critical patent/PL3143232T3/en
Publication of EP3143232A1 publication Critical patent/EP3143232A1/en
Application granted granted Critical
Publication of EP3143232B1 publication Critical patent/EP3143232B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E06B9/326—Details of cords, e.g. buckles, drawing knobs
    • 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
    • E06B9/28—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
    • E06B9/326—Details of cords, e.g. buckles, drawing knobs
    • E06B2009/3265—Emergency release to prevent strangulation or excessive load

Definitions

  • the invention relates to a device for rotating a shaft of a roller blind either of a such like product, said device comprising at least one roller which directly either indirectly might be coupled to said shaft, over which roller an operating chain either a cord can be guided by which said roller can be rotated.
  • the object of the invention is to raise this objection and to that end said roller, over which said operating chain is guided, is rotatable supported in a housing in such a way that when on said chain a force is exerted higher than a given value, said roller will be drawn out of said housing.
  • said device can be used in the normal way for rotating the roller and by this for operating said roller blind.
  • the roller will leave said housing such that no longer a force will be exerted on said chain .
  • the side walls of said roller are provided with substantially conical cavities in which from both sided suitable shaped support members are received being taken up in said housing and from which at least one is resilient pressed against said roller.
  • the side walls of said roller might be provided with a substantial conical cavity in which in one side wall a complementary part of a sliding member can be received, being limited movable in said housing and is resilient pressed toward said roller, with in the other side wall of said roller a complementary part of a coupling member can be received, said coupling member being supported in said housing, said cooperating planes of said roller and said coupling member being provided with means by which said coupling member will rotate with said roller and in which said coupling member is direct either indirect coupled to said shaft of said roller blind.
  • both side walls of said roller will be provided with corresponding cavities such that said roller can be received in said housing in each of both positions.
  • said complementary part of said sliding member will be executed such that said roller can freely rotate on it.
  • the surfaces of said conical cavities in the side walls of said roller and those of said conical surface of said coupling member might be provided with ribs extending according to describing lines of said conical surfaces.
  • said housing can be executed such that this can be connected to a wall, a plane, a frame either such like being suitable for supporting the shaft of a roller blind either of such like object.
  • this will give no difficulties.
  • the mounting of the device described above will bring labour with it so that this will not be done soon.
  • said housing is executed as a longly extending free part in which said roller is rotatable supported in the way described above and can be drawn out of said housing and said roller, by means of at least one tooth wheel, can drive a secondary roller being rotatable supported in said housing and over which secondary roller a chain can be guided which further is guided over a roller serving for rotating the shaft of a roller blind either a such like object.
  • said primary operating chain can be made shorter and can be guided over said secondary roller in said housing. Then said housing will hang at a relatively short distance below said roller blind and the operating chain hanging out of said housing will be protected, in the way indicated above, because the roller can be drafted out of said housing when a too great force is executed on said chain .
  • Fig. 1 shows a side view of a first embodiment of a device according to the invention in the active position of this ;
  • Fig. 2 shows a cross section of the device of fig. 1 according to the line II-II in this;
  • Fig. 3 shows a side view of the device of fig. 1 but after the roller is drawn out of the device;
  • Fig. 4 shows a cross section of the device of fig. 3 according to the line IV-IV in this;
  • Fig. 5 shows a side view of a second embodiment of a device according to the invention in which this is executed as a separate part and is in the active position;
  • Fig. 6 shows a cross section of the device of fig. 5 according to the line VI-VI in this;
  • Fig. 7 shows a side view of the device of fig. 5 after the roller is drawn out of the device.
  • Fig. 8 shows a cross section over the device of fig. 7 according to the line VIII-VIII in this.
  • the figures 1-4 show a device comprising a housing 1, being provided with means, such as screw holes, for connecting a part 2 of a not further shown tooth wheel transmission.
  • a sliding member 3 is present being influenced by a spring 4 such that it is pressed against the roller 5 with the surrounding surface 6, over which a chain 7 might run which in the known way might drive the roller.
  • Both side surfaces 8 of the roller 5 are provided with substantial conical cavities 9.
  • a corresponding part of said sliding member 3 can be freely rotatable received, while in the other cavity a corresponding part 10 of a coupling member 11 can be received.
  • the part 10 and the cooperating part of the conical cavity 9 in the roller 5 are executed such that the roller 5 will take said coupling member with it when said roller is rotated.
  • the shaft 12 of a further not shown roller blind either a such like object, is fixedly connected.
  • FIGS 5-8 show a device in which parts corresponding with parts used in this case of the device described above, are indicated with the same numbers.
  • a housing 21 consisting of two parts as indicated in fig. 5 either of more parts as indicated in fig. 7. Said parts are connected to each other by means of screws 22.
  • roller 5 is supported at both sides by a sliding member 3, being influenced by a spring 4. Again a chain 7 is guided over the periphery 6 of the roller 5. When a too high force is exerted on the chain 7 said roller will be drawn out of the housing 21 in the same way as shown in the figures 7 and 8.
  • the roller 5 is in its active position via one or more tooth wheels 23, being coupled to a secondary roller 24 being rotatable receiving in the housing 21.
  • the primary operating chain 25 runs over said secondary roller 24 and serves for directly rotating of the shaft of a roller blind or a such like object.
  • said primary chain 25 is made shorter such that said housing 21 is positioned near the shaft of said roller blind.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Blinds (AREA)

Abstract

Device for rotating the shaft (12) of a roller blind or such like, comprising a roller (5) for coupling with said shaft. A chain (7) either a cord running over said roller. Said roller is supported in a housing (1, 21) such that when a force higher than a given value is exerted, said roller will be drawn out of said housing. The side walls (8) of said roller (5) are provided with conical cavities in which support members (3, 10, 11) are received being taken up in said housing and from which at least one is resilient pressed against said roller. Said housing being fixedly connected to a building either a part (21) of this and being connected via a secondary roller (24) to a chain (25) driving the shaft (1, 2) of said roller blind.

Description

DEVICE FOR ROTATING THE SHAFT OF A ROLLER BLIND
The invention relates to a device for rotating a shaft of a roller blind either of a such like product, said device comprising at least one roller which directly either indirectly might be coupled to said shaft, over which roller an operating chain either a cord can be guided by which said roller can be rotated.
In case of known roller blinds said operating chain either said cord is having the shape of a loop hanging downwardly from said roller being connected to said roller blind. In what follows there will be shortly spoken of a chain, the invention not being limited to this.
Now it has appeared that such a downwardly hanging loop might be dangerous for a child who at play is putting its head through said loop, either accidentally said loop will land over its head. In praxis such accidents have appeared.
Now the object of the invention is to raise this objection and to that end said roller, over which said operating chain is guided, is rotatable supported in a housing in such a way that when on said chain a force is exerted higher than a given value, said roller will be drawn out of said housing.
So, as long as the force exerted on said chain is not higher than a given value said device can be used in the normal way for rotating the roller and by this for operating said roller blind.
If now by a child, either in another way, a force higher than e.g. 6 kg, is exerted on said chain, said roller will leave said housing such that no longer a force will be exerted on said chain . According to an embodiment of the invention, the side walls of said roller are provided with substantially conical cavities in which from both sided suitable shaped support members are received being taken up in said housing and from which at least one is resilient pressed against said roller.
In particular the side walls of said roller might be provided with a substantial conical cavity in which in one side wall a complementary part of a sliding member can be received, being limited movable in said housing and is resilient pressed toward said roller, with in the other side wall of said roller a complementary part of a coupling member can be received, said coupling member being supported in said housing, said cooperating planes of said roller and said coupling member being provided with means by which said coupling member will rotate with said roller and in which said coupling member is direct either indirect coupled to said shaft of said roller blind.
Preferably both side walls of said roller will be provided with corresponding cavities such that said roller can be received in said housing in each of both positions. Obviously said complementary part of said sliding member will be executed such that said roller can freely rotate on it. For coupling said roller to said coupling member the surfaces of said conical cavities in the side walls of said roller and those of said conical surface of said coupling member might be provided with ribs extending according to describing lines of said conical surfaces.
According to an embodiment of the invention said housing can be executed such that this can be connected to a wall, a plane, a frame either such like being suitable for supporting the shaft of a roller blind either of such like object. For new roller blinds, which have to be mounted, this will give no difficulties. For an already present roller blind the mounting of the device described above will bring labour with it so that this will not be done soon.
In view of this according to the invention it is provided that said housing is executed as a longly extending free part in which said roller is rotatable supported in the way described above and can be drawn out of said housing and said roller, by means of at least one tooth wheel, can drive a secondary roller being rotatable supported in said housing and over which secondary roller a chain can be guided which further is guided over a roller serving for rotating the shaft of a roller blind either a such like object.
In case of an already present roller blind said primary operating chain can be made shorter and can be guided over said secondary roller in said housing. Then said housing will hang at a relatively short distance below said roller blind and the operating chain hanging out of said housing will be protected, in the way indicated above, because the roller can be drafted out of said housing when a too great force is executed on said chain .
The invention is further elucidated on hand of embodiments, shown in the drawing, in which:
Fig. 1 shows a side view of a first embodiment of a device according to the invention in the active position of this ;
Fig. 2 shows a cross section of the device of fig. 1 according to the line II-II in this;
Fig. 3 shows a side view of the device of fig. 1 but after the roller is drawn out of the device; Fig. 4 shows a cross section of the device of fig. 3 according to the line IV-IV in this;
Fig. 5 shows a side view of a second embodiment of a device according to the invention in which this is executed as a separate part and is in the active position;
Fig. 6 shows a cross section of the device of fig. 5 according to the line VI-VI in this;
Fig. 7 shows a side view of the device of fig. 5 after the roller is drawn out of the device; and
Fig. 8 shows a cross section over the device of fig. 7 according to the line VIII-VIII in this.
The figures 1-4 show a device comprising a housing 1, being provided with means, such as screw holes, for connecting a part 2 of a not further shown tooth wheel transmission.
In said housing 1 a sliding member 3 is present being influenced by a spring 4 such that it is pressed against the roller 5 with the surrounding surface 6, over which a chain 7 might run which in the known way might drive the roller. Both side surfaces 8 of the roller 5 are provided with substantial conical cavities 9. In one of said cavities a corresponding part of said sliding member 3 can be freely rotatable received, while in the other cavity a corresponding part 10 of a coupling member 11 can be received. The part 10 and the cooperating part of the conical cavity 9 in the roller 5 are executed such that the roller 5 will take said coupling member with it when said roller is rotated. To said coupling member 11 the shaft 12 of a further not shown roller blind, either a such like object, is fixedly connected. When the chain 7 will be loaded in the normal way said roller 5 will be rotated and by this the shaft 12 for operating said roller blind. If, however, a too high force is executed on said chain 7 the roller will press away said sliding member 3, against the force of the spring 4, and will snap over the part 10 of said coupling member 11 and will fall downwards as shown in the figures 3 and 4.
The figures 5-8 show a device in which parts corresponding with parts used in this case of the device described above, are indicated with the same numbers. In case of this embodiment of the device, use is made of a housing 21 consisting of two parts as indicated in fig. 5 either of more parts as indicated in fig. 7. Said parts are connected to each other by means of screws 22.
In this case the roller 5 is supported at both sides by a sliding member 3, being influenced by a spring 4. Again a chain 7 is guided over the periphery 6 of the roller 5. When a too high force is exerted on the chain 7 said roller will be drawn out of the housing 21 in the same way as shown in the figures 7 and 8.
Now the roller 5 is in its active position via one or more tooth wheels 23, being coupled to a secondary roller 24 being rotatable receiving in the housing 21. The primary operating chain 25 runs over said secondary roller 24 and serves for directly rotating of the shaft of a roller blind or a such like object. In respect of the normal executed operating of said roller blind with a primary operating chain extending over a reasonable height, now said primary chain 25 is made shorter such that said housing 21 is positioned near the shaft of said roller blind. It will be obvious that only two possible embodiments of a device according to the invention are shown in the drawing and are described above and that many modifications can be applied without leaving the inventive idea as this is indicated in the accompanying claims.

Claims

Claims
1. Device for rotating the shaft (12) of a roller blind either of a such like product, said device comprising at. least one roller (5) being directly either indirectly coupled to said shaft, (12) over which roller an operating chain (7) either a cord can be guided by which said roller (5) can be rotated, characterized in that said roller (5), over which said operating chain (7) is guided, is rotatable supported in a housing (1, 21) in such a way that when on said chain a force is exerted higher than a given value, said roller (5) will be drawn out of said housing (1, 21) .
2. Device according to claim 1, characterized in that the side walls (8) of said roller (5) are provided with substantially conical cavities (9) in which from both sides suitable shaped support members (3, 10, 11) are received being taken up in said housing (1, 2) and from which at least one (3) is resilient pressed against said roller (5) .
3. Device according to claim 2, characterized in that the side walls (8) of said roller (5) are provided with a substantial conical cavity (9) in which one side wall (8) a complementary part of a sliding member (3) can be received, being limited movable in said housing (1, 21) and being resilient pressed towards said roller, with in the other side wall (8) of said roller (5) a complementary part of a coupling member (LI) can be received, said coupling member (11) being rotatable supported in said housing (1) , said cooperating planes (8) of said roller (5) and said coupling member (11) being provided with means by which said coupling member will rotate with said roller, said coupling member (11) being connected, direct either indirect, to said shaft (12) of said roller blind.
4. Device according to claim 3, characterized in that both side walls (8) of said roller (5) are provided with corresponding cavities (9) such that said roller in each of both positions can be mounted in said housing (1, 21) .
5. Device according to claim 1, characterized in that said housing (21) is executed as a longly extending member, in which said roller (5) is rotatable supported and can be drawn out of said housing, said roller (5) can drive a secondary roller (24) by means of at least one toothed wheel (23) , being rotatable supported in said housing (21), a primary chain (25) being guided over said secondary roller (24) running on the other side over a roller serving for rotating the shaft (12) of a roller blind either such like object.
EP15726365.8A 2014-05-16 2015-05-07 Device for rotating the shaft of a roller blind Active EP3143232B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15726365T PL3143232T3 (en) 2014-05-16 2015-05-07 Device for rotating the shaft of a roller blind

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1040807A NL1040807B1 (en) 2014-05-16 2014-05-16 Device for rotating the axis of a roller blind or similar object.
PCT/NL2015/000016 WO2015174827A1 (en) 2014-05-16 2015-05-07 Device for rotating the shaft of a roller blind

Publications (2)

Publication Number Publication Date
EP3143232A1 true EP3143232A1 (en) 2017-03-22
EP3143232B1 EP3143232B1 (en) 2018-10-17

Family

ID=51266387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15726365.8A Active EP3143232B1 (en) 2014-05-16 2015-05-07 Device for rotating the shaft of a roller blind

Country Status (6)

Country Link
EP (1) EP3143232B1 (en)
CN (1) CN106255796B (en)
NL (1) NL1040807B1 (en)
PL (1) PL3143232T3 (en)
TW (1) TWI657778B (en)
WO (1) WO2015174827A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI581740B (en) * 2016-07-15 2017-05-11 程田有限公司 Safety device for curtain controller
TWI628351B (en) 2016-12-26 2018-07-01 程田有限公司 Curtain controller
GB2559796A (en) * 2017-02-20 2018-08-22 Uni Soleil Entpr Co Ltd Curtain control assembly with safety device for bead chain
TWM559682U (en) 2018-01-11 2018-05-11 Uni Soleil Enterprise Co Ltd Safety device of bead rope of curtain controller
JP7094634B2 (en) * 2018-11-16 2022-07-04 芦森工業株式会社 Rewind-type shade device
NL2024608B1 (en) 2020-01-06 2021-09-07 Vako B V Cord operated device for a blind, an assembly of such a device and a blind

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2414555C (en) * 2001-12-17 2009-07-21 Hunter Douglas Industries B.V. Safety device for cord-operated control system
US20030150567A1 (en) * 2002-02-12 2003-08-14 Hyman James J. Releasable cord apparatus and breakaway end portion for window treatments
DE202009013368U1 (en) * 2009-10-16 2010-04-01 Huang, Hsien-Te A safety device for window curtains
TW201204918A (en) * 2010-07-20 2012-02-01 xian-de Huang Safety-ensured window curtain brake system and method
EP2530234B1 (en) 2011-05-28 2015-08-19 WAREMA Kunststofftechnik und Maschinenbau GmbH Drive device for adjusting sunscreens

Also Published As

Publication number Publication date
TW201607478A (en) 2016-03-01
CN106255796A (en) 2016-12-21
HK1231535A1 (en) 2017-12-22
CN106255796B (en) 2019-04-16
TWI657778B (en) 2019-05-01
EP3143232B1 (en) 2018-10-17
PL3143232T3 (en) 2019-05-31
WO2015174827A1 (en) 2015-11-19
NL1040807B1 (en) 2016-03-02

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