EP1746245A2 - Frein à friction méchanique unidirectionel pour enroulement régulier d'une moustiquaire - Google Patents

Frein à friction méchanique unidirectionel pour enroulement régulier d'une moustiquaire Download PDF

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Publication number
EP1746245A2
EP1746245A2 EP20060386022 EP06386022A EP1746245A2 EP 1746245 A2 EP1746245 A2 EP 1746245A2 EP 20060386022 EP20060386022 EP 20060386022 EP 06386022 A EP06386022 A EP 06386022A EP 1746245 A2 EP1746245 A2 EP 1746245A2
Authority
EP
European Patent Office
Prior art keywords
fly
screen
axis
roll
friction
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Withdrawn
Application number
EP20060386022
Other languages
German (de)
English (en)
Inventor
Emmanouel Varitis
Dimitrios Sagris
Dimitrios Varitis
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1746245A2 publication Critical patent/EP1746245A2/fr
Withdrawn legal-status Critical Current

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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
    • E06B9/44—Rollers therefor; Fastening roller blinds to rollers
    • 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
    • E06B2009/807—Brakes preventing fast screen movement
    • 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
    • E06B9/60—Spring drums operated only by closure members

Definitions

  • the present invention refers to a speed - controlling mechanism (braking) of rotary roll used in rotary fly-screen / mosquito mesh of both vertical and horizontal unwinding.
  • a classic structure of a rotary fly-screen comprises of a fly-screen (mesh), which, on one end, has got an ell that the user sets in motion.
  • the ell is forced into motion within the vertical or horizontal guides respectively, resulting in the unwinding of the fly-screen.
  • the other end of the fly-screen is stably mounted at an axis at which it unwinds or rolls up depending on the rotating direction.
  • a rotary spring is mounted with initial pre-stress for the automatic roll-up of the fly-screen, while the other end rotates freely.
  • the operation of the fly-screen takes place in two stages. During the first stage, the user extends the fly-screen until the position of full extension and the force acted is accumulated in the rotary spring. At the position of full extension a device that locks the fly-screen acts upon, so as the fly-screen not to return by itself to the initial position of full roll-up due to the rotary spring. This rotation takes place only during the second stage, that is only if the user releases the locking device.
  • the use of the rotary roll-up fly-screen is wide in modern houses.
  • the fly-screen structure does not comprise any brake mechanism.
  • This lack of brake mechanism in relation to the need of initial pre-stress of the rotary spring, leads to high speeds during the roll-up of the fly-screen resulting to its unsafe operation.
  • the risks present refer, on the one hand, to the user's physical integrity and, on the other hand, to the fly-screen itself due to its wear or damage, resulting from the collision of its various parts. That is the reason why several attempts have taken place towards the development of a brake mechanism with a different operation principle.
  • Another brake category has as principle the centrifugal force as presented in the EP919854 document.
  • the weakness of the brakes of this category is the increased production cost, due to their complexity and the increased volume of their structure. Due to the increased volume, the internal incorporation of the brake mechanism at the axis of the fly-screen is very difficult, while its external placement leads to the increase of the volume of the whole structure.
  • the smooth and proper operation of the fly-screen is succeeded by the use of an one-direction mechanical friction brake.
  • the mechanism is comprised by friction elements for reducing the roll-up speed of the fly-screen and a ratchet lock mechanism, which allows the free one-direction rotation of the fly-screen.
  • the transportational movement of the nut results in the compression or the decompression of a spring, which by turn creates a variable vertical force at the friction elements.
  • the initial placement of the nut in relation to the spring determines the initial pre-stress of the spring, on the one hand, and the maximum growing friction force, on the other hand.
  • a brake mechanism, with variable friction force, according to the above description has a lot of advantages.
  • ratchet lock ensures the development of braking force only towards the direction of rotation (towards the roll-up of the fly-screen), while it allows the free rotation towards the opposite direction. Thus, the user is not aggravated with additional force during the extension of the fly-screen.
  • the solid components of the mechanism in relation to the small developing forces at the distinct friction elements ensure null wear of all mechanism's components, on the one hand, and unaffected operation regardless of environmental conditions, on the other hand.
  • the combination of the two makes the mechanism reliable in the long run.
  • the mechanism's components are small and of simple geometry so as to compose a mechanism of small total volume that allows its internal incorporation into the axis of a fly-screen of any kind.
  • the production cost of these components as well as their incorporation cost at the fly-screen structure is kept particularly low.
  • the operation of the mechanism is characterised by two extreme positions, the upper and down one. In the upper extreme position the fly-screen is totally rolled at its axis, while in the down extreme position the fly-screen is in total extension.
  • Figures 1 and 2 only the end of the fly-screen is depicted, at which the brake mechanism is mounted, while the other end is mounted to the roll-up spring.
  • Figure 1 presents a three-dimensional perspective drawing of the brake mechanism mounted at the side face of the rotary fly-screen at the upper position.
  • Figure 2 presents the drawing of the mechanism at the down position.
  • Figure 3 presents a three-dimensional perspective drawing of the development of the ratchet lock mechanism, as well as its elevation.
  • the fly-screen unrolls from its fly-screen axis (1) putting it at the same time into rotation.
  • the fly-screen axis itself rotates the nut (2) which has the same external form with the side face of the fly-screen axis.
  • the nut is mounted to an axis (3) with screw thread which remains stable (fastened) at the cover (9).
  • This spring presses the friction element (5) on the ratchet lock mechanism (6) that presses by turn the friction element (7).
  • the axial movement of the elements (5), (6) and (7) is prohibited due to a retaining ring (8).
  • the elements (5) and (7) due to their external form, follow the rotary movement of the fly-screen axis (1) and in relation to the force acted upon them by the spring (4) force the ratchet lock (6) to rotate towards the same direction.
  • the ratchet lock (6) rotates freely and, thus, the engaged elements (5), (6) and (7) perform a simultaneous rotary movement as one body, without developing friction forces in the intermediate surfaces.
  • no further resistance is developed and the existence of a brake mechanism does not influence the operation of the fly-screen during its extension.
EP20060386022 2005-07-18 2006-07-10 Frein à friction méchanique unidirectionel pour enroulement régulier d'une moustiquaire Withdrawn EP1746245A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR2005100369 2005-07-18

Publications (1)

Publication Number Publication Date
EP1746245A2 true EP1746245A2 (fr) 2007-01-24

Family

ID=37052540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060386022 Withdrawn EP1746245A2 (fr) 2005-07-18 2006-07-10 Frein à friction méchanique unidirectionel pour enroulement régulier d'une moustiquaire

Country Status (1)

Country Link
EP (1) EP1746245A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20161721A1 (it) * 2016-03-16 2017-09-16 Matteo Spegne "dispositivo rallentatore a portanza variabile per sistemi avvolgibili"
WO2018049462A1 (fr) * 2016-09-13 2018-03-22 Grant Raymond Norton Système de ressort réglable et procédé pour stores déroulants
JP2020502395A (ja) * 2016-11-21 2020-01-23 ウィンテック コリア インコーポレーテッド コードレスブラインド装置
EP3680446A4 (fr) * 2017-09-06 2021-04-21 TOK, Inc. Dispositif de freinage pour un dispositif formant store du type à enroulement automatique
US11970906B2 (en) 2018-12-28 2024-04-30 7912854 Canada Inc. Roller blind limiter assembly, roller blind mechanism, roller blind system and method for adjusting an end position of a roller blind

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919854A1 (fr) 1997-11-27 1999-06-02 Kabushiki Kaisha Nichibei Ecran à rouleau
GR1004263B (el) 2002-01-31 2003-06-12 Κωνσταντινος Παναγιωτη Σταυρακας Μηχανισμος ελεγχομενης κινησεως πετασματος σιτας θυρων/παραθυρων

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919854A1 (fr) 1997-11-27 1999-06-02 Kabushiki Kaisha Nichibei Ecran à rouleau
GR1004263B (el) 2002-01-31 2003-06-12 Κωνσταντινος Παναγιωτη Σταυρακας Μηχανισμος ελεγχομενης κινησεως πετασματος σιτας θυρων/παραθυρων

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20161721A1 (it) * 2016-03-16 2017-09-16 Matteo Spegne "dispositivo rallentatore a portanza variabile per sistemi avvolgibili"
EP3219903A1 (fr) * 2016-03-16 2017-09-20 Matteo Spegne Dispositif arrêter de retard variable pour volets roulants
WO2018049462A1 (fr) * 2016-09-13 2018-03-22 Grant Raymond Norton Système de ressort réglable et procédé pour stores déroulants
CN109906302A (zh) * 2016-09-13 2019-06-18 格朗特·雷蒙德·诺顿 用于卷帘的可调节的弹簧系统和方法
CN109906302B (zh) * 2016-09-13 2021-08-27 遮挡器具有限公司 用于卷帘的可调节的弹簧系统和方法
US11339608B2 (en) 2016-09-13 2022-05-24 Blindware Pty Ltd Adjustable spring system and method for roller blinds
JP2020502395A (ja) * 2016-11-21 2020-01-23 ウィンテック コリア インコーポレーテッド コードレスブラインド装置
EP3680446A4 (fr) * 2017-09-06 2021-04-21 TOK, Inc. Dispositif de freinage pour un dispositif formant store du type à enroulement automatique
US11970906B2 (en) 2018-12-28 2024-04-30 7912854 Canada Inc. Roller blind limiter assembly, roller blind mechanism, roller blind system and method for adjusting an end position of a roller blind

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