EP1568845B1 - Vorrichtung zum Verschliessen und Öffnen eines Öffnungselementes mit Kopplungbegrenzungsfähigkeit - Google Patents

Vorrichtung zum Verschliessen und Öffnen eines Öffnungselementes mit Kopplungbegrenzungsfähigkeit Download PDF

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Publication number
EP1568845B1
EP1568845B1 EP05370001.9A EP05370001A EP1568845B1 EP 1568845 B1 EP1568845 B1 EP 1568845B1 EP 05370001 A EP05370001 A EP 05370001A EP 1568845 B1 EP1568845 B1 EP 1568845B1
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EP
European Patent Office
Prior art keywords
rotation
torque
slope
opening
driven
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
EP05370001.9A
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English (en)
French (fr)
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EP1568845A1 (de
Inventor
Régis c/o Deprat Jean SA Couturier
Frédéric c/o Deprat Jean SA Prouvost
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Deprat Jean SA
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Deprat Jean SA
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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
    • E06B9/76—Operating devices or mechanisms, e.g. with electric drive using crank handles
    • 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
    • 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

Definitions

  • the present invention relates to a device for closing and opening an opening, such as in particular a shutter, blind or the like, comprising actuating means, transmission means and mechanical end-of-travel means.
  • the limiting torque from which the pin will emerge from the impressions is determined by the elastic means and in particular the stiffness of the spring used and the geometry of the contact zone between the pin and the impression.
  • the contact zone is generally semi-cylindrical and identical in both directions of rotation. This does not allow in particular to easily define the limit torque by playing on said contact geometry. In addition, such a geometry does not allow to obtain a different limit torque according to the two directions of rotation.
  • a folding blind comprising maneuvering means, in this case a crank rod, a movable member, in this case the hollow support of the deck, and an intermediate winch linking the rotation of the crank and that of the hollow support.
  • maneuvering means in this case a crank rod
  • a movable member in this case the hollow support of the deck
  • an intermediate winch linking the rotation of the crank and that of the hollow support.
  • a torque limiting device, marked 17, is interposed between the deck support and its drive shaft.
  • This torque limiting device comprises two gear elements, pressed against each other by a spring, which deviate from one another when the torque becomes too large.
  • the inclinations of the teeth of the two elements are different so that the limit torque in a first drive direction differs from that in the other drive direction.
  • the object of the present invention is to provide a device for closing and opening an opening, comprising transmission means, operating means and end-of-stroke means.
  • torque limiting function in both directions of rotation which overcomes the aforementioned drawbacks, and in particular allows to have a contact zone whose geometry allows, in the design, to define the limit pairs easily and standardized in said two directions of rotation.
  • Another object of the invention is to provide a device for adjusting jointly and easily, during the installation of said opening and / or closing device, or the limit couples in both directions of rotation.
  • Another object of the invention is to provide a closing and opening device provided with a brake system which retains the roller shutter even when the clutch device decouples the means of maneuvering the transmission means or during a failure of said clutch device.
  • the invention relates to a device for closing and opening 15 an opening, in particular a shutter (not shown), blind or the like, comprising a movable member such as in particular a drum (not shown), maneuvering means such as that including a crank (not shown), transmission means 16, 17, such as including a winch, and mechanical end-of-travel means 2, 3, torque limiting function in both directions of rotation.
  • the invention will find a particular application for shutter aprons rigidly attached to the drum by means of a lock.
  • a lock allows the jamming of the apron at the end of the low stroke and prevents any fraudulent lifting of said roller shutter.
  • the roller shutter aprons additionally have stop-action projections which come into contact at the end of the high run with the crossbar, the trunk or the lintel.
  • the end-of-stroke means according to the invention make it possible to protect the closing device and the opening, and in particular the rolling shutter apron and its transmission means in the case of a high abutment and in the case of an abutment. low.
  • the end-of-travel means constituted by a clutch device are arranged between the actuating means and the transmission means. They thus make it possible to protect the entire kinematic and mechanical chain; and according to the embodiment, crank, rod, hinge, tip, axis of the flap, fastener and blades will be protected.
  • the transmission means such as in particular gear and worm can then be made of plastic.
  • the first driving element may take the form of a plate 2 having a double slope radial toothing pressed by resilient means 6 against a second driven element in the form of a plate 3 provided with a toothing radial with double slope.
  • the first driving element may take the form of a tubular element in which is inserted coaxially a flexible tubular element of smaller diameter constituting the second driven element, as disclosed in document CH-666.560 .
  • the first tubular element may have a radial internal toothing in double-slope crown adapted to mesh with an external radial toothing of the second tubular driven element.
  • the second tubular driven element may then have internal elastic means, as illustrated in document CH-666.560 and in particular at least one longitudinal groove, allowing deformation of the external radial toothing of said second tubular element and allowing said external radial toothing. to deviate when the transmitted torque becomes too important.
  • a radial toothing provided with a first and a second slope for meshing in the two directions of rotation allows during the design a better determination of the limit couples.
  • the limit torque depends on several parameters and more particularly on the angle of each slope, the average radius of the toothing, the force induced by the elastic means and the coefficients of friction of the materials used in the teeth. . The importance of these parameters on the limit torque will become clearer when describing the Figures 2 and 3 .
  • correspondence tables may allow, depending on the slopes used, the average radius of the toothing, the materials used and the elastic force to determine a limit torque.
  • the device is able to present in limiting torque C 1 in a first direction of rotation, distinct from a limiting torque C 2 in a second direction of rotation.
  • the angle 7 formed between the action line 8 induced by the torque along said first direction of rotation and said first slope 4 is less than the angle 13 formed between the line of action 12 induced by the torque along said second direction of rotation and said second slope 5, so that the limiting torque C 1 necessary for said first drive element 2 to no longer mesh with said second element 3 entrained in said first direction of rotation is less than the limit torque C 2 required for said first drive element 2 no longer causes said second element 3 driven in said second direction of rotation.
  • action line 8, 12 is meant torque-induced, the line at the level of the toothing contained in a plane perpendicular to the axis of rotation of said clutch device 1 and perpendicular to a radius of the circle following the radial toothing.
  • the figure 2 illustrates the forces involved at the level of the teeth of the clutch device 1 according to the invention, in equilibrium, and for a limit torque C 1 according to a first direction of rotation.
  • the first driving element 2 meshes with the second driven element 3 in a first direction of rotation in the same direction as the vector 8.
  • the force F 23 14 represents the resultant of the forces of the first driving element 2 on the second driven element 3.
  • the force F 23 can decompose as the sum of the force F e 9 induced by the elastic means and the force F C1 8 due to the limiting torque C 1 induced by the operating means and the opposing resistance of the means of transmission.
  • the force F R 10 then represents the resultant of the forces opposed to the force F 23 .
  • the limit torque depends on the angle ⁇ 1 and the average radius R 1 of the toothing as well as the forces F e induced by the elastic means.
  • figure 3 illustrates the forces involved at the level of the toothing of the clutch device according to the invention at equilibrium and for a limit torque C 2 in a second direction of rotation.
  • the slope 5 is subject to the transmission forces.
  • the force F 23 24 which can be decomposed as the sum of the force F C2 12 due to the limit torque C 2 and the force F e 9 due to the elastic means.
  • the force F R 26 opposed to the force F 23 24.
  • the scheme of the figure 3 is made on the same scale as the diagram of the figure 2 and for a force F e 9 identical, that is to say, the same force induced by the elastic means.
  • the force F C2 12 is greater than the force F C1 8.
  • the limit torque formula which is a function increasing in ⁇ over the useful interval.
  • the first direction of rotation is the direction of downward actuation of the closing and opening device and in particular of said shutter, said second direction of rotation being the direction of actuation uphill.
  • the limiting torque C 2 of rise must be greater than the limiting torque C 1 of descent.
  • the elastic means consist of Belleville washers 6 connected in series.
  • the addition or withdrawal of a said washer makes it possible to increase or decrease the forces of the elastic means and makes it possible to jointly adjust the limit torque C 1 and the limit torque C 2 .
  • the elastic means consist of a spring 6 '.
  • the transmission means of the closing and opening device are constituted by a pair of toothed wheels 16 and endless screws 17 arranged in a housing 25.
  • Said toothed wheel 16 is secured in particular to the roller shutter drum, meshing with the worm 17.
  • the worm 17 is actuated by the operating means by means of the clutch device.
  • said second driven element 3 is constituted by the worm 17 with the presence of a radial toothing at one of its ends, said first drive element being in the form of a ratchet 2 located on the same axis of rotation of the worm 17.
  • This pawl is free to move in a housing relative to the screw and deviates in the case of excessive torque.
  • the pawl 2 is pressed elastically against the worm 17 by means of Belleville washers mounted in series, one against the other, in a housing of the common housing to that of the pawl, the addition or removal of a said Belleville washer to jointly adjust the limit torque or pairs in both directions of rotation.
  • Belleville washers also make it possible not to damage the casing on which they rest, the latter being able to slide on one another in rotation.
  • said pawl 2 and the worm 17 are traversed by a same polygonal shaft, or splined (not shown), said pawl 2 having an opening of complementary polygonal section 19, or splined to said polygonal shaft, or fluted, in such a way said pawl 2 is free in translation but locked in rotation relative to said polygonal shaft, said shaft constituting an axis of rotation for the worm 17.
  • the pawl is made using two parts, a sleeve 2 'and a ring 2 "having a radial toothing.
  • the sleeve 2 ' is traversed by a polygonal or fluted control shaft and has for this purpose a polygonal section hole 19 or corrugated conformal such that said sleeve 2' is rotated by said polygonal shaft or fluted.
  • the sleeve 2 'further has on its outer circumference longitudinal grooves 30 cooperating with conformal grooves on the inner circumference of said ring 2 "so as to cause said ring to rotate.
  • said sleeve 2' is preferably fixed in translation, against said crown 2 "is able to move along the longitudinal grooves of said sleeve 2 '.
  • Said sleeve 2 ' has a shoulder 31 on which the elastic means 6' bear to press said ring 2 "against the radial toothing of said worm 17.
  • said device has braking means 20 cooperating with said worm screw 17.
  • braking means 20 cooperating with said worm screw 17.
  • said closing and opening device means of braking are particularly necessary in the case of a pair of toothed wheels 16 / worm 17 having a pitch between teeth and a large screw pitch and making the transmission system reversible when the weight of the rolling shutter deck is too high .
  • the braking means 20 act on the kinematic chain downstream of the interconnection means and more particularly at the level of the worm. This arrangement improves safety and allows in particular to retain the rolling shutter apron when the clutch device decouples the means of maneuvering the transmission means.
  • the braking means are constituted by resilient means 20 secured to said housing 25 and cooperating by friction at an extension 21 of said worm 17. They may in particular be in the form of a spring of conventional form 20 secured to the casing 25 by two lugs and clamped on an extension 21 of said worm 17.
  • the winch casing has symmetrical fastenings along the axis of rotation of said toothed wheel 16. This characteristic makes it possible to use the casing for attachment to the right or to the left of any trunk of shutter or with a winding the apron to the outside or inside the house.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Endoscopes (AREA)

Claims (7)

  1. Schließ- und Öffnungsvorrichtung (15) einer Tür, die ein bewegliches Organ, Handhabungsmittel, Übertragungsmittel und mechanische Endschaltermittel mit Momentbegrenzerfunktion in die zwei Drehrichtungen umfasst, wobei die Endschaltermittel aus einer Klauenvorrichtung (1) bestehen, die mindestens Folgendes aufweist:
    - ein erstes Antriebselement (2), das eine radiale Verzahnung mit doppelter Schräge aufweist, eine erste Schräge (4), um in eine erste Drehrichtung einzugreifen, eine zweite Schräge (5), um in eine zweite Drehrichtung einzugreifen,
    - ein zweites angetriebenes Element (3), das eine radiale Verzahnung mit doppelter Schräge aufweist, die mit der radialen Verzahnung des ersten Antriebselement (2) übereinstimmt,
    - elastische Mittel, das erste Element (2) und das zweite Element (3) im Bereich ihrer Verzahnung gegeneinander zu drücken,
    die derart zusammenwirken, dass, wenn das Drehmoment, das von dem ersten Antriebselement (2) an das zweite angetriebene Element (3) übertragen wird, größer wird als ein vorbestimmter Wert, sich mindestens eines der zwei Elemente abspreizt, so dass das erste Antriebselement (2) nicht mehr in das zweite angetriebene Element (3) eingreift, und wobei der Winkel (7), der zwischen der Aktionslinie (8), die von dem Drehmoment in die erste Drehrichtung induziert wird, und der ersten Schräge (4) kleiner ist als der Winkel (13), der zwischen der Aktionslinie (12), die von dem Drehmoment in die zweite Drehrichtung induziert wird, und der zweiten Schräge (5) gebildet wird, so dass das Grenzdrehmoment C1, das erforderlich ist, damit das erste Antriebselement (2) nicht mehr in das zweite angetriebene Element (3) in die erste Drehrichtung eingreift, kleiner ist als das Grenzdrehmoment C2, das erforderlich ist, damit das erste Antriebselement (2) nicht mehr in das zweite angetriebene Element (3) in die zweite Drehrichtung eingreift, dadurch gekennzeichnet, dass die Übertragungsmittel aus einem in einem Gehäuse (25) angeordneten Paar Zahnrädern (16) / Endlosschraube (17), bestehen, und dass das erste Antriebselement (2) mit den Handhabungsmitteln verbunden ist und das zweite Element (3) mit den Übertragungsmitteln verbunden ist, und dass das zweite angetriebene Element (3) gebildet ist, aus der Endlosschraube (17) in Gegenwart einer radialen Verzahnung an einem (18) ihrer Enden, wobei das erste Antriebselement in der Form einer Schaltklinke (2) ausgebildet ist, die sich auf derselben Drehachse wie die Endlosschraube (17) befindet.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die erste Drehrichtung die Betätigungsrichtung zum Senken der Schließ- und Öffnungsvorrichtung ist, wobei die zweite Drehrichtung die Hubbetätigungsrichtung ist.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die elastischen Mittel aus Belleville-Scheiben (6), die in Serie montiert sind, bestehen.
  4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Schaltklinke (2) und die Endlosschraube (17) von ein und derselben vieleckigen Welle durchquert sind, wobei die Schaltklinke (2) eine Öffnung mit vieleckigem Querschnitt (19), die zu der vieleckigen Welle komplementär ist, derart aufweist, dass die Schaltklinke (2) in Verschiebung frei aber in Drehung in Bezug auf die vieleckige Welle blockiert ist, wobei die Welle eine Drehachse für die Endlosschraube (17) bildet.
  5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Vorrichtung Bremsmittel (20) aufweist, die mit der Endlosschraube (17) zusammenwirken.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Bremsmittel aus elastischen Mitteln (20) bestehen, die mit dem Gehäuse verbunden sind und durch Reibung im Bereich einer Verlängerung (21) der Endlosschraube (17) zusammenwirken.
  7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Schaltklinke (2) aus einem Kranz (2") besteht, der in Drehung verbunden aber in Verschiebung in Bezug auf einen Stutzen (2'), der in Drehung von den Handhabungsmitteln angetrieben wird, frei ist, wobei der Kranz (2") über elastische Mittel (6), die auf den Stutzen (2') drücken, gegen die radiale Verzahnung der Schraube gedrückt wird.
EP05370001.9A 2004-02-26 2005-02-24 Vorrichtung zum Verschliessen und Öffnen eines Öffnungselementes mit Kopplungbegrenzungsfähigkeit Expired - Lifetime EP1568845B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0401959A FR2866921B1 (fr) 2004-02-26 2004-02-26 Dispositif de fermeture et d'ouverture d'un ouvrant a fonction de limiteur de couple
FR0401959 2004-02-26

Publications (2)

Publication Number Publication Date
EP1568845A1 EP1568845A1 (de) 2005-08-31
EP1568845B1 true EP1568845B1 (de) 2016-04-20

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EP05370001.9A Expired - Lifetime EP1568845B1 (de) 2004-02-26 2005-02-24 Vorrichtung zum Verschliessen und Öffnen eines Öffnungselementes mit Kopplungbegrenzungsfähigkeit

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EP (1) EP1568845B1 (de)
ES (1) ES2582183T3 (de)
FR (1) FR2866921B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2973061B1 (fr) 2011-03-24 2016-05-13 Zurfluh-Feller Dispositif de manoeuvre pour installation de fermeture ou de protection solaire, et installation de fermeture ou de protection solaire equipee d'un tel dispositif
GB2504115A (en) * 2012-07-19 2014-01-22 Soper Ltd R A manual drive mechanism positionable on either side of the blind

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530218A (en) * 1946-04-22 1950-11-14 Safety Car Heating & Lighting Window shade construction
CH631514A5 (en) * 1979-08-24 1982-08-13 Lamelcolor Sa Folding blind
CH666560A5 (de) 1983-03-01 1988-07-29 Tadeusz Bobak Anzeigevorrichtung.
CH662859A5 (en) * 1984-03-21 1987-10-30 Griesser Ag Overload safety device for a roller shutter, blind or awning drive
FR2572155B1 (fr) * 1984-10-18 1989-12-01 Simu Soc Ind Metal Usine Perfectionnements aux mecanismes d'entrainement du type a vis sans fin pour volets roulants et appareillages analogues
US5117893A (en) * 1985-08-07 1992-06-02 Excel Shutter Systems, Inc. Rolling shutter system
FR2729771B1 (fr) 1995-01-24 2002-06-07 Zurfluh Feller Sa Perfectionnement apporte a un limiteur de couple
FR2777037B1 (fr) * 1998-04-02 2000-05-26 Bubendorff Sa Dispositif de blocage unidirectionnel pour volet roulant
FR2785274B1 (fr) * 1998-11-02 2000-12-29 Fermetures Henri Peyrichou Dispositif d'arret automatique de la manoeuvre d'un element enroulable motorise
FR2816016B1 (fr) * 2000-10-27 2003-02-07 Zurfluh Feller Dispositif limiteur de couple

Also Published As

Publication number Publication date
ES2582183T3 (es) 2016-09-09
FR2866921A1 (fr) 2005-09-02
EP1568845A1 (de) 2005-08-31
FR2866921B1 (fr) 2006-06-02

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