EP3002406A1 - Dispositif pour assister le levage d'un volet roulant, ensemble volet roulant doté de ce dispositif et trousse d'administration pour sa fabrication - Google Patents

Dispositif pour assister le levage d'un volet roulant, ensemble volet roulant doté de ce dispositif et trousse d'administration pour sa fabrication Download PDF

Info

Publication number
EP3002406A1
EP3002406A1 EP14425122.0A EP14425122A EP3002406A1 EP 3002406 A1 EP3002406 A1 EP 3002406A1 EP 14425122 A EP14425122 A EP 14425122A EP 3002406 A1 EP3002406 A1 EP 3002406A1
Authority
EP
European Patent Office
Prior art keywords
rolling shutter
support
shaft
winding roll
shutter assembly
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Withdrawn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
EP14425122.0A
Other languages
German (de)
English (en)
Inventor
Marco Maggi
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.)
Ristema SRLS
Original Assignee
Ristema SRLS
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 Ristema SRLS filed Critical Ristema SRLS
Priority to EP14425122.0A priority Critical patent/EP3002406A1/fr
Publication of EP3002406A1 publication Critical patent/EP3002406A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • E06B9/56—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
    • 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
    • E06B9/62—Counterweighting arrangements

Definitions

  • the present invention concerns a rolling shutter group with manual lifting with an assisting belt.
  • the majority of rolling shutters currently known are actuated manually through a lifting belt.
  • One end of the rolling shutter is fixed to a shaft, or roller, generally having octagonal-shaped cross-sections.
  • a pulley is coaxially fixed to one end of the octagonal shaft.
  • the lifting belt is wound around the pulley.
  • the rolling shutter is lifted, the belt is pulled, downwards by hand, unwinding from the pulley.
  • one purpose of the present invention is to provide a device for assisting the lifting of rolling shutters that is easier and simpler to install with respect to known assisting devices.
  • Such a purpose is achieved, in a first aspect of the invention, with a device for the assisted lifting of a rolling shutter having the characteristics according to claim 1.
  • Figures 1-6 relate to a rolling shutter assembly according to a particular embodiment of the invention, wholly indicated with reference numeral 10 and comprising:
  • the pulley 18 is preferably mounted coaxially with respect to the winding roll 11 and is fixedly attached to it.
  • the rolling shutter assembly 10 preferably comprises a lifting belt 24 that is fixed to the pulley 18 so as to be able to unwind or wind up on it according to the rotation direction of the roller 11 + pulley 18 assembly around the axis AR.
  • a shaft 12 can be inserted that is preferably coaxial with respect to the roller itself, and preferably longer than the roller 11 so as to extend from both of its ends; the roller 11 can rotate relatively to the shaft 12, for example because it is mounted on the shaft through a pair of roller or plain bearings 20 located, for example, at the ends of the roller 11 itself.
  • the external part of these bearings can be engaged with the inside of the roller 11 through suitable adapter flanges 21 -shown in Figure 2 - which, if the roller has octagonal sections, will also have an outer perimeter that is substantially octagonal so as to not rotate with respect to the roller.
  • each adapter flange 21 during normal operation of the rolling shutter assembly can rotate with respect to the shaft 12.
  • one end of the shaft 12 is fixed to a bracket 26A.
  • the opposite end of the roller 11, on the other hand, is fixed, so as to be able to rotate around itself, to another bracket or other fixing element 26B.
  • the bracket 26A and the other bracket or other fixing element 26B are fixed to a common wall box, to a wall, or to another part of the building or fixed structure on which the rolling shutter assembly is mounted.
  • the bracket or other fixing element 26B allows the roller 11 to freely rotate on itself around the longitudinal axis AR.
  • the shaft 12 cannot rotate with respect to the wall, or with respect to another part of the building or fixed structure on which the rolling shutter assembly is mounted, so as to be able to load the rewinding spring 19, and allow it to apply a driving torque on the roller 11.
  • the elastic element 19 is preferably a helical spring which overall preferably has a conical shape or, in any case, a tapered shape - Figures 1 , 2 .
  • the helical spring 19 can be made, by winding a tape or a metal wire, for example made of suitable spring steel, into a spiral. If formed by a tape, the helical spring 19 is capable of storing greater elastic energy for a smaller bulk and of releasing it more gradually and homogeneously.
  • One end of the spring 19 is fixed to the shaft 12, the other end is fixed to the roller 11 so that, when the rolling shutter 22 is unwound, i.e. lowered, the latter loads the spring 19 by rotating around their axis AR in the direction opposite to the winding direction of their turns; the spring 19 partially opposes the force of gravity making it less tiring for the user to lower the rolling shutter.
  • the rewinding spring 19 is progressively unloaded so as to assist the lifting movement of the rolling shutter, and therefore tiring the user pulling the belt 24 less. In such a way it has been possible to reduce the lifting force needed by up to 50% with respect to that which is necessary for lifting a normal rolling shutter.
  • At least one of the brackets 26A, 26B can comprise a plate for fixing to wall 15 and an adapter 13 which makes it possible to fix the support 14 to the wall plate 15 ( Figures 4 , 6 ).
  • the plate 15 is advantageously of the known and standardised type.
  • the support 14 forms a shaft seat 140 that is arranged for receiving and locking both the translations and the rotations on it -i.e. with respect to a longitudinal rotation axis of the shaft 12- of one end of the shaft 12.
  • the support 14 comprises two or more jaws 142, 144 that are arranged for grasping and blocking the ends of the shaft 12 and that can be locked against one another for example through screws 146. If the shaft 12 has substantially flat sides, it can be grasped and blocked by the jaws 142, 144 simply through friction, so as to not be able to rotate around itself.
  • the shaft 12 is provided with radial projections, for example because it forms a "stub shaft"
  • the jaws 142, 144 can be provided with corresponding recesses or with radial projections thereof that engage with those of the shaft 12, again preventing it from rotating on itself. Portions of the shaft seat 140 can be obtained on the different jaws 142, 144.
  • the adapter 13 is advantageously overall substantially T-shaped, made up of:
  • the base 130 and the seat 150 have a width LB, LS that is preferably of between 32-52 mm, more preferably between 38-46 mm and even more preferably between 41-43 mm.
  • the support 14 is suitable for being reversibly fixed to the bracket portion 132, for example through a threaded stem 131 + nut 134, another threaded connection element, a fit- or interlock-coupling system, a snap-coupling system, a bayonet coupling system or another quick coupling system that can be mounted and demounted quickly and adjust the height HA of the axis of the shaft 12 with respect to the bracket portion 132, to a clamp or to other variants of the bracket 26A.
  • the stem 131 clearly makes it possible to fix the support 14 even to clamps, which have possibly already been installed in the wall and perforated, of a pre-existing rolling shutter that is intended to be provided with the mechanism for assisted lifting that has previously been described.
  • the clamp or the bracket portion 132 can be provided with a through hole 133, which is preferably not threaded, within which the threaded stem 131 can be introduced.
  • the stem 131 is locked to the bracket portion 132 or to other clamps or wall fixing elements through a second nut 136, which is screwed on at the opposite side of the nut 134 with respect to the bracket portion 132 or to other clamp or wall fixing element ( Figures 3 , 4 ).
  • Such a quick coupling system makes it possible to adjust the height HA in a range preferably of between 10-40 mm, more preferably between -20 mm and even more preferably between 10-20 mm.
  • a single rewinding spring 19 is housed inside the roller: this makes it possible to considerably simplify both its mechanical construction and the mounting of the rewinding mechanism of the rolling shutter.
  • the rewinding spring 19 has a length LM that is equal to or greater than 0.3-0.4 metres.
  • the wire of the spring 19 has a diameter that is preferably of between 2-4 mm, and more preferably between 2.8-3.1 mm so as to lift the rolling shutter with enough strength.
  • the rewinding spring 19 has a maximum diameter DMax of between 4-5.5 cm, and more preferably equal to around 4.5-5 cm.
  • the assembly formed by the internal shaft 12, by the spring 19 and by the roller or plain bearings 20 can be provided as a kit that is already assembled ready to be quickly inserted inside the roller 11 of a rolling shutter that has already been installed.
  • the quick coupling systems previously described make it possible to facilitate and speed up the mounting and the adjustment of such a kit, both when modifying pre-existing rolling shutters and when installing new ones.
  • it makes it possible to assemble the kit on a wide variety of already installed and currently widespread wall plates and clamps, also thanks to the adapter 13.
  • the jaws 142, 144 make it possible to align, lock and level the shaft 12 and the roller 11 rapidly and precisely.
  • the embodiments previously described can undergo different modifications and variations without for this reason departing from the scope of protection of the present invention. Moreover, all the details can be replaced by technically equivalent elements.
  • the materials used, as well as the dimensions can be any according to the technical requirements.
  • the threaded stem 131 can be replaced with a non-threaded one, possibly which is locked axially by adjustment nipples, jaws or other pressure systems.
  • the rewinding spring 19 may not only be helical, but even of other kinds, for example a flat spiral. It should be understood that an expression of the type "A comprises B, C, D" or "A is formed by B, C, D" comprises and describes also the particular case in which "A is made up of B, C, D".
  • the examples and lists of possible variants of the present application should be taken as non-exhaustive lists.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP14425122.0A 2014-10-03 2014-10-03 Dispositif pour assister le levage d'un volet roulant, ensemble volet roulant doté de ce dispositif et trousse d'administration pour sa fabrication Withdrawn EP3002406A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14425122.0A EP3002406A1 (fr) 2014-10-03 2014-10-03 Dispositif pour assister le levage d'un volet roulant, ensemble volet roulant doté de ce dispositif et trousse d'administration pour sa fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14425122.0A EP3002406A1 (fr) 2014-10-03 2014-10-03 Dispositif pour assister le levage d'un volet roulant, ensemble volet roulant doté de ce dispositif et trousse d'administration pour sa fabrication

Publications (1)

Publication Number Publication Date
EP3002406A1 true EP3002406A1 (fr) 2016-04-06

Family

ID=52003708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14425122.0A Withdrawn EP3002406A1 (fr) 2014-10-03 2014-10-03 Dispositif pour assister le levage d'un volet roulant, ensemble volet roulant doté de ce dispositif et trousse d'administration pour sa fabrication

Country Status (1)

Country Link
EP (1) EP3002406A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10557296B2 (en) * 2011-11-29 2020-02-11 Gabrijel Rejc Weight compensation device of a lifting door with at least one compression spring
US11905758B2 (en) 2020-07-02 2024-02-20 Springs Window Fashions, Llc Roller shade assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790385A1 (fr) * 1996-02-14 1997-08-20 Simu Dispositif de manoeuvre pour volet roulant
WO2000008288A2 (fr) 1998-08-04 2000-02-17 Qmi Roll Shutter Supply Dispositif de separation modulaire roulant muni d'un mecanisme de reglage de la tension
WO2010089118A1 (fr) * 2009-02-09 2010-08-12 Hunter Douglas Industries B.V. Système de ressort pour stores à rouleau

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790385A1 (fr) * 1996-02-14 1997-08-20 Simu Dispositif de manoeuvre pour volet roulant
WO2000008288A2 (fr) 1998-08-04 2000-02-17 Qmi Roll Shutter Supply Dispositif de separation modulaire roulant muni d'un mecanisme de reglage de la tension
WO2010089118A1 (fr) * 2009-02-09 2010-08-12 Hunter Douglas Industries B.V. Système de ressort pour stores à rouleau

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10557296B2 (en) * 2011-11-29 2020-02-11 Gabrijel Rejc Weight compensation device of a lifting door with at least one compression spring
US11905758B2 (en) 2020-07-02 2024-02-20 Springs Window Fashions, Llc Roller shade assembly

Similar Documents

Publication Publication Date Title
AU2019222890B2 (en) Shading device for an architectural opening and method for adjusting an end stop position of the shading device
US10501988B2 (en) Power assist module for coverings for architectural structures
US20150179994A1 (en) Element for mounting a battery in a winding tube of a home-automation screen
US8739854B2 (en) Pre-assembled and pre-tensioned shade with indexing gear tensioner
US20120048152A1 (en) Winch and autonomous mobile apparatus including the same
US20160290043A1 (en) Window shade with spring assist
EP3002406A1 (fr) Dispositif pour assister le levage d'un volet roulant, ensemble volet roulant doté de ce dispositif et trousse d'administration pour sa fabrication
AU2016222264B2 (en) Spool assembly for a blind system
KR101232227B1 (ko) 안전네트 유닛
US8459329B2 (en) Flexible partition roller system
EP1764472A1 (fr) Ajustage de tension ressort
TW201116705A (en) Adjustable counterbalance system for roller doors
TW201144201A (en) Hose reel frame and guide arm
ES2926823T3 (es) Sistema de arrastre en rotación de un miembro de enrollamiento
US11187032B2 (en) Power assist module for coverings for architectural structures and related drive plug assemblies
JP6100440B2 (ja) ストリップ材料をコイルに巻くための装置
CN220684352U (zh) 一种pvc卷材收放卷装置
JP2015117500A (ja) 遮光幕昇降装置
JP2012047027A (ja) 開閉機の巻取りドラムの駆動装置
CN207063885U (zh) 车库门用铝制绕线轮
JP6172968B2 (ja) 電動スクリーン装置
US11105442B2 (en) Mount for hose reel
US20230313611A1 (en) Window Treatment Having a Spring Wrap Brake
JP6614686B1 (ja) シャッター巻上げ装置
WO2015060990A1 (fr) Système de câble de sûreté horizontal doté d'un élément déformant par torsion

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20161007