EP0645518B1 - Dispositif d'entraînement et de mise sous tension d'un élément souple de protection, tel qu'une bande, un rideau ou un tablier - Google Patents

Dispositif d'entraînement et de mise sous tension d'un élément souple de protection, tel qu'une bande, un rideau ou un tablier Download PDF

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Publication number
EP0645518B1
EP0645518B1 EP94440061A EP94440061A EP0645518B1 EP 0645518 B1 EP0645518 B1 EP 0645518B1 EP 94440061 A EP94440061 A EP 94440061A EP 94440061 A EP94440061 A EP 94440061A EP 0645518 B1 EP0645518 B1 EP 0645518B1
Authority
EP
European Patent Office
Prior art keywords
control shaft
rolling
motor
unrolling
apron
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.)
Expired - Lifetime
Application number
EP94440061A
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German (de)
English (en)
French (fr)
Other versions
EP0645518A1 (fr
Inventor
Louis Plumer
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.)
Bubendorff SA
Original Assignee
Bubendorff SA
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
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Application filed by Bubendorff SA filed Critical Bubendorff SA
Publication of EP0645518A1 publication Critical patent/EP0645518A1/fr
Application granted granted Critical
Publication of EP0645518B1 publication Critical patent/EP0645518B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/70—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller

Definitions

  • the invention relates to a device for driving and tensioning a flexible protective element, such as a strip, a curtain or an apron, comprising a winding control shaft, from which and on which unrolls and coils said flexible protection element, and a unwinding control shaft acting on the latter, directly or by means of transmission for its deployment, the winding control shaft and l 'unwinding control shaft being each driven in rotation by means of a motor with which are associated braking means activated to no longer brake when one of these motors is powered.
  • this drive device comprises a winding control shaft, from which and on which the flexible element is unwound and wound.
  • This winding control shaft is driven in rotation by means of a tubular or other type of motor, this in the winding phase of the flexible element.
  • this motor is equipped with an electromagnetic brake which is activated, that is to say that it no longer brakes when the motor with which it is associated is running, that is to say during winding, but also in the deployment phase controlled by the unwinding control shaft.
  • the winding control shaft it cooperates with a motor which ensures its rotational drive during the deployment phase of the protective element.
  • this motor is associated with an electromagnetic brake which is activated, that is to say which no longer brakes, as soon as one of the motors of the winding control shaft or of the sequence control is supplied.
  • the winding control shaft and the unwinding control shaft are arranged parallel to each other and of on either side of the surface to be covered by means of the flexible protective element. Furthermore, this is, initially, wound around the winding control shaft and comprises, at the height of its free end, straps joining the unwinding control shaft where they are wound on drums equipping the latter.
  • this type of flexible protection element is intended to be deployed in an almost horizontal position or with a slight slope above the surface to be protected. Also, this poses the problem of tensioning this flexible element and of maintaining it in such a position. Indeed, by its own weight, this flexible protective element necessarily collapses between the winding control shaft and the unwinding control shaft, more particularly during the deployment phase. It should be recalled, in fact, that during the operation of one of the motors, the brakes associated with each of them are activated in order to allow free rotation of the winding control shaft and of the sequence control tree.
  • This auxiliary brake can be of the mechanical or eddy current type.
  • an eddy current brake is effective as soon as there is rotation. Consequently, it may be the cause of a loosening of the protective element at the end of the deployment stroke. Also, it only partially solves the problem posed.
  • a mechanical brake, of the friction type frequently incorporates a rock wheel so as not to operate in a determined direction of rotation, that is to say in the direction of rotation taken by the control shaft. winding in winding phase.
  • such a mechanical brake which provides a solution to the drawbacks encountered with an eddy current brake, proves to be particularly complex and leads to a significant increase in the cost price of the drive device.
  • Such problems of energizing or, more particularly, of maintaining tension are also found at the level of the flexible windable protective elements, of the rolling shutter type, the deck of which is almost horizontal in movement, or at least of insufficient inclination for its deployment to be carried out by its own weight.
  • said rolling shutter comprises a control shaft for winding the deck mounted in rotation in a box inside which is also located the control shaft for unwinding this deck.
  • the latter is disposed below the winding control shaft and comprises, at its ends, toothed wheels meshing in openings arranged at the ends of the blades making up said deck.
  • the unwinding control shaft is rotated by a motor associated with it. It also includes a brake which is activated, that is to say which no longer brakes when the motor is powered and, on the contrary, prevents the rotation of the unwinding control shaft in the event of stop of operation. of the motor so as to block, on the descent, the roller shutter curtain.
  • the brake is also activated so that it no longer brakes when the winding control shaft is rotated by the motor which is specific to it.
  • this curtain winding control shaft is often devoid of electromagnetic brake. Indeed, as already specified, the blocking of the bulkhead is obtained by means of the brake motor fitted to the unwinding control shaft. Also, the winding control shaft is not subjected to a significant torque corresponding to the total weight of the deck.
  • the motor of this winding control shaft is associated with auxiliary braking means.
  • the reducer creates a braking force capable of opposing the rotation of the winding shaft under the influence of the reduced torque produced by the few blades of the deck separating the unwinding control shaft from this winding control shaft.
  • the deck of such roller shutters is designed by a juxtaposition of slats which not only are articulated with respect to one another, but often are also telescopic in a direction perpendicular to them. so as to be able to give the deck an openwork position. More precisely, when the blades are kept apart from each other, they reveal days allowing the passage of light rays. In fact, this type of telescopic articulation connecting the blades of a roller shutter deck poses significant difficulties, especially in the context of rolling shutters with almost horizontal deployment. More specifically, such roller shutters are applied to roof windows or the like. As a result, they are particularly exposed to the weather.
  • the The engine since the winding of the deck is only obtained under the rotational drive of the winding control shaft, the The engine must necessarily have sufficient torque so as to be able to compensate for the torque produced by the total weight of the bulkhead.
  • this excessive torque constitutes a handicap in the event of blockage of the apron, in particular, in its upper part housed in the box. Indeed, being greater than the mechanical strength of the deck. it can lead to the rupture of it.
  • the object of the present invention is, precisely, to provide a solution to the drawbacks encountered in the above-mentioned cases, this through simple solutions, employing standard equipment and, consequently, inexpensive.
  • the invention relates to a device for driving and tensioning a flexible protective element such as a strip, a curtain or an apron, comprising a winding control shaft from which and on which unrolls and winds up said flexible protection element and an unwinding control shaft acting on the latter, directly or by means of transmission, with a view to its deployment, the winding control shaft and l 'unwinding control shaft each being driven in rotation by means of a motor with which associated braking means activated so as to no longer brake when one of these motors is powered, characterized in that it comprises means for management of the power supply of the motors capable of ensuring the operation, at reduced power and in the opposite direction of the operation, of the motor of the winding control shaft or of the unwinding control shaft, depending on whether the 'o n is in phase, respectively, of unwinding or winding, in order to create a resistant torque with respect to this maneuver controlled by the operation of the motor, respectively, of the unwinding control shaft or of the shaft winding control.
  • the invention also relates to a device for driving and tensioning a flexible protective element, such as a strip, a curtain or an apron, comprising a winding control shaft, from which and on which unwinds and winds up said flexible protection element, and an unwinding control shaft acting on the latter, directly or by means of transmission, with a view to its deployment, the winding control shaft and the unwinding control shaft each being driven in rotation by means of a motor with which associated braking means are activated so that they no longer brake when one of these motors is powered, characterized in that it comprises means for managing the supply of the motors capable of ensuring the operation, at reduced speed and in the same direction as the operation, of the motor of the winding control shaft or of the unwinding control shaft, according to e one is in phase, respectively, of unwinding or winding, with a view to creating a resistant torque with respect to this maneuver controlled by the operation of the motor, of the unwinding control shaft or, respectively, of the winding control shaft.
  • the invention relates to a device for driving and tensioning a flexible protective element, such as a strip, a curtain or an apron, comprising a winding control shaft, from which and on which unwinds and winds up the flexible protection element, and an unwinding control shaft acting on the latter, directly, or by means of transmission, with a view to its deployment, the control shaft d winding and the unwinding control shaft each being driven in rotation by means of a motor to which at least for the motor of the unwinding control shaft are associated braking means, possibly activated to no longer brake when one of these motors is powered, characterized in that it comprises means for managing the power supply of these motors capable of ensuring, at least in the winding phase, the operation, on the one hand, of the drive shaft motor bearing at reduced power and, on the other hand, the motor of the unwinding control shaft at its nominal power and in the direction of the maneuver.
  • the motors are preferably chosen with identical characteristics.
  • the present invention relates to a drive and tensioning device 1 for flexible protective element 2 which can be wound up of the strip or curtain type 3, as shown in FIG. 1, or again of the apron type 4 for rolling shutter, as illustrated in FIG. 2.
  • this drive and tensioning device 1 aims to ensure the deployment horizontally or with a slight inclination, of this flexible protective element 2. Also, it comprises, first of all, a winding control shaft 5 from which and on which the flexible protective element 2 is unwound and wound up. It further comprises a unwinding control shaft 6 acting on this flexible protective element 2, either directly as shown in Figure 2, or via transmission means 7, in particular straps, corresponding to the embodiment of Figure 1, this in order to obtain its deployment.
  • the control shaft of unwinding 6 is arranged parallel to the winding control shaft 5 and is located, with respect to the latter, on the other side of the surface 8 to be covered and to be protected.
  • the winding control shaft 5 and the unwinding control shaft 6 are each driven in rotation by means of a motor, respectively 12, 13, which, as shown, may be of the type tubular or placed at the end of the shaft.
  • a motor respectively 12, 13, which, as shown, may be of the type tubular or placed at the end of the shaft.
  • Each of these motors 12, 13 is associated with braking means 14, 15, constituted, for example, by a brake of the electromagnetic type.
  • This brake 14, 15 is activated, that is to say that it no longer brakes when any of the motors 12, 13 is supplied.
  • the brakes 14, 15 are deactivated so that the winding control shaft 5, respectively, the unwinding control shaft 6 is locked in rotation .
  • the drive and energizing device within the framework of the embodiment illustrated in FIG. 1, comprises means 16 for managing the power supply to the motors 12, 13 in the same ensure the operation, at reduced power and in the opposite direction of the maneuver during execution, of the motor 12, 13, of the drive control shaft 5 or of the unwinding control shaft 6, according to that one is in phase, respectively, of deployment or winding of the flexible element 2.
  • the motor 13 in deployment phase, not only the motor 13 is supplied so as to drive in rotation l unwinding control shaft 6 causing the transmission means 7 to be wound on the drums 9, 10, but also the motor 12 of the winding control shaft 5, but at reduced power and in the opposite direction by in relation to the maneuver in progress, i.e. the deployment of the flexible element 2.
  • this motor 12 operating in reverse, produces a resistant torque with respect to the operation controlled by the operation of the motor 13 of the unwinding control shaft 6.
  • This situation is the same, but conversely, during the folding phase of the flexible element 2.
  • the motor 12 of the winding control shaft 5 is normally supplied, while the motor 13 of the control shaft unwinding 6 is supplied with reduced power and operates in reverse of the operation to produce a resistant torque.
  • This resistant torque can also be obtained by ensuring the operation of the motor 12, 13 in the same direction as the maneuver being executed, but at a lower speed compared to that of the motor respectively 13, 12, depending on whether one is, respectively, during deployment or folding of the flexible element 2.
  • the power of the motors 12, 13 may be reduced, since the latter assist each other during the various maneuvers.
  • the resistive torque thus produced at the level of the shaft of winding control 5 or the unwinding control shaft 6, ensures that the flexible element 2 is kept in tension, both during the maneuvers and at the time when these motors 12, 13 stop operating.
  • the unwinding control shaft 6 being arranged downstream of the winding control shaft, acts directly on the blades 17 of the deck 4 making up the flexible element 2.
  • this unwinding control shaft 6 comprises, at its ends, drive means 22 in the form of toothed wheels 23 cooperating with the blades 17 coming to mesh in openings 24 made at the ends of the latter.
  • management means 16 of the supply of motors 12, 13 associated, respectively, with this winding control shaft 5 and with the unwinding control shaft 6, can guarantee the supply at reduced power and in the opposite direction of one of these motors 12 , 13 with a view to creating a resistant torque opposing the maneuver in progress, respectively, the deployment and the folding of the flexible element 2.
  • the motor 12 of the winding control shaft 5 is suitably supplied, while the motor 13 of the unwinding control shaft 6 is supplied with a reduced power and in a reverse direction of rotation so as to produce a resisting torque with respect to the folding element's maneuver of the flexible element 2.
  • the motor 12, associated with the control shaft of winding 5 must have a power not only sufficient to cope with the total weight of the deck 4, but also to compensate for the resistant torque produced by the motor 13 of the unwinding control shaft 6.
  • this solution of operating the motors 12, 13 in the same direction, during a deployment maneuver or, more particularly, of folding the apron 4 has the advantage that these motors 12, 13 assist each other , during these different maneuvers.
  • this standardization of motors contributes significantly to a reduction in the cost price of such a rolling shutter.
  • an advantageous solution consists in choosing a sufficient winding control shaft diameter 5, that is to say which allows, from the initial winding phase, to ensure, under the influence of the rotation of the motor 12, a theoretical linear speed to the bulkhead 4 which is greater than the actual linear speed transmitted to this bulkhead 4 via the unwinding control shaft 6 and therefore of the motor 13. More precisely, the diameter of the winding control shaft 5 will be chosen to be greater than the nominal diameter of the toothed wheels 23 equipping, at its ends, the unwinding control shaft 6 and coming to mesh in the openings 24 present in the deck 4.
  • the braking means 14, 15 associated with the motor 12, 13 can be constituted, just as in the context of the previous embodiment, by an electromagnetic brake directly coupled to each of its motors 12, 13.
  • an electromagnetic brake directly coupled to each of its motors 12, 13.
  • braking means directly dependent on the configuration of the motor 13 and the drive means associated therewith, of the speed reducer type are, in this case, sufficient to keep the blades of the section of apron separating in tension the winding control shaft 5 and the unwinding control shaft 6 after the engines 12, 13 have stopped operating.
  • the present invention not only provides a solution to a real technical problem in the deployment of flexible protective elements horizontally or at low inclination, but, moreover, by virtue of its simplicity, turns out to be a lower cost price and allows a certain standardization at the manufacturing level. Therefore, the present invention represents a clear technical progress in the field concerned.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Retarders (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Blinds (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
EP94440061A 1993-09-29 1994-09-23 Dispositif d'entraînement et de mise sous tension d'un élément souple de protection, tel qu'une bande, un rideau ou un tablier Expired - Lifetime EP0645518B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9311767A FR2710685B1 (fr) 1993-09-29 1993-09-29 Dispositif d'entraînement et de mise sous tension d'un élément souple de protection, tel qu'une bande, un rideau ou un tablier.
FR9311767 1993-09-29

Publications (2)

Publication Number Publication Date
EP0645518A1 EP0645518A1 (fr) 1995-03-29
EP0645518B1 true EP0645518B1 (fr) 1997-01-08

Family

ID=9451493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94440061A Expired - Lifetime EP0645518B1 (fr) 1993-09-29 1994-09-23 Dispositif d'entraînement et de mise sous tension d'un élément souple de protection, tel qu'une bande, un rideau ou un tablier

Country Status (6)

Country Link
US (1) US5547009A (es)
EP (1) EP0645518B1 (es)
AT (1) ATE147475T1 (es)
DE (1) DE69401410T2 (es)
ES (1) ES2098113T3 (es)
FR (1) FR2710685B1 (es)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6422965B1 (en) * 2000-04-20 2002-07-23 Overhead Door Corporation Door operator unit
US6725897B2 (en) 2000-08-22 2004-04-27 Newell Window Furnishings, Inc. Variable friction device for a cordless blind
US6644375B2 (en) 2001-01-09 2003-11-11 Newell Window Furnishings Cordless blind brake
US6675861B2 (en) 2001-12-14 2004-01-13 Newell Window Furnishings, Inc. Brake for a cordless blind
US7096917B2 (en) * 2001-12-14 2006-08-29 Newell Window Furnishings, Inc. One way brake for a cordless blind
US6684930B2 (en) 2001-12-14 2004-02-03 Newell Window Furnishings, Inc. Brake for a cordless blind
US7389863B2 (en) * 2006-01-27 2008-06-24 Warner Electric Technology, Llc Automatically releaseable bidirectional overrunning clutch
CA2446650A1 (en) * 2003-10-24 2005-04-24 Jean-Robert Tremblay Windable curtain assembly for hiding the bottom of a raised patio construction
FR2875531B1 (fr) * 2004-09-21 2006-12-08 Bubendorff Sa Dispositif d'entrainement pour tablier de volet roulant.
DE102004046783A1 (de) * 2004-09-27 2006-04-06 Webasto Ag Rolloanordnung für ein Kraftfahrzeug
US7387344B2 (en) * 2005-12-09 2008-06-17 Yu Xiaohui Echo Easy assembly sofa kit
JP2006177152A (ja) * 2006-03-22 2006-07-06 Wayne-Dalton Corp 建物の開口部を被覆するウィンドロック機構
US20080156679A1 (en) * 2006-12-08 2008-07-03 Bonora Anthony C Environmental isolation system for flat panel displays
EP1956176A1 (fr) * 2007-02-07 2008-08-13 Dynaco International S.A. Dispositif à rideau enroulable
GB0703285D0 (en) * 2007-02-20 2007-03-28 Cutler Daniel Retractable covering apparatus
CN102946767B (zh) 2010-05-28 2016-11-23 亨特道格拉斯公司 由回转电机提供动力的建筑开口遮挡物
FR2971646B1 (fr) * 2011-02-14 2014-04-25 Bubendorff Dispositif d’alimentation en energie electrique d’une charge a courant continu
CN103889281B (zh) 2011-10-03 2017-10-20 亨特道格拉斯公司 用于控制建筑开口覆盖物总成的方法和装置
CA2828819C (en) 2012-10-03 2020-03-10 Hunter Douglas Inc. Methods and apparatus to control an architectural opening covering assembly
TWI673429B (zh) 2013-03-14 2019-10-01 美商漢特道格拉斯股份有限公司 用以控制建築開口遮蓋物總成之方法及裝置
US9951524B2 (en) * 2015-06-08 2018-04-24 Samuel Mazzarelli Retractable awning
AU2015249099B2 (en) * 2015-10-28 2021-08-19 Hodge Systems Pty Ltd Motor-driven roller system
PL240870B1 (pl) * 2017-08-07 2022-06-20 Fakro Pp Spolka Z Ograniczona Odpowiedzialnoscia Zespół napędowy rolety, zwłaszcza listwowej
US10676990B2 (en) * 2017-09-19 2020-06-09 Thomas L Delvecchio Motorized window shades for RVs
FR3127010A1 (fr) 2021-09-10 2023-03-17 Bhg Procédé de pilotage d’un dispositif d’entraînement d’un élément souple de protection et dispositif d’entraînement d’un tel élément souple de protection.
EP4148227A1 (fr) 2021-09-10 2023-03-15 Bhg Procédé de pilotage d'un dispositif d'entraînement d'un élément souple de protection et dispositif d'entraînement d'un tel élément souple de protection
FR3127011B1 (fr) 2021-09-10 2024-09-27 Bhg Procédé de pilotage d’un dispositif d’entraînement d’un élément souple de protection et dispositif d’entraînement d’un tel élément souple de protection.

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US2347845A (en) * 1941-12-03 1944-05-02 Fanner Mfg Co Electrically operated awning
DE2303782A1 (de) * 1973-02-26 1974-08-01 Guenter Kindervater Rollo mit auf- und abwickelbarem vorhang
FR2502597A1 (fr) * 1981-03-24 1982-10-01 Carpano & Pons Dispositif d'entrainement d'un element souple de protection
FR2544887B1 (fr) * 1983-04-25 1985-07-19 Somfy Dispositif automatique de commande d'un store de protection solaire ou similaire
US4766941A (en) * 1986-06-09 1988-08-30 Sytron Corporation Window shade with selectively variable shading characteristics
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US5355927A (en) * 1992-12-17 1994-10-18 Mckeon Rolling Steel Door Company, Inc. Self-closing fire door

Also Published As

Publication number Publication date
DE69401410D1 (de) 1997-02-20
FR2710685B1 (fr) 1995-12-22
FR2710685A1 (fr) 1995-04-07
US5547009A (en) 1996-08-20
EP0645518A1 (fr) 1995-03-29
ATE147475T1 (de) 1997-01-15
ES2098113T3 (es) 1997-04-16
DE69401410T2 (de) 1997-06-19

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