EP0848137B1 - Elektrischer Motor mit Getriebe für metallische Rollgitter - Google Patents

Elektrischer Motor mit Getriebe für metallische Rollgitter Download PDF

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Publication number
EP0848137B1
EP0848137B1 EP19970830648 EP97830648A EP0848137B1 EP 0848137 B1 EP0848137 B1 EP 0848137B1 EP 19970830648 EP19970830648 EP 19970830648 EP 97830648 A EP97830648 A EP 97830648A EP 0848137 B1 EP0848137 B1 EP 0848137B1
Authority
EP
European Patent Office
Prior art keywords
gearmotor
shaft
irreversibility
driving shaft
motor
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
EP19970830648
Other languages
English (en)
French (fr)
Other versions
EP0848137A1 (de
Inventor
Dante Postacchini
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.)
Gaposa SRL
Original Assignee
Gaposa SRL
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 Gaposa SRL filed Critical Gaposa SRL
Publication of EP0848137A1 publication Critical patent/EP0848137A1/de
Application granted granted Critical
Publication of EP0848137B1 publication Critical patent/EP0848137B1/de
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
    • E06B9/74—Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
    • 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
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/86—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against unauthorised opening

Definitions

  • the invention concerns an electric gearmotor for metal rolling gates counter-weighed by springs, equipped with a mechanical irreversibility device fitted between the gearmotor and the motor according to the introductory part of claim 1.
  • said irreversibility mechanism is fitted at one end of the driving shaft which performs a short axial stroke thanks to which it is possible to move away and uncouple the mechanism from the gearmotor.
  • the gearmotor in question is mounted above all on rolling gates counter-weighed by springs which, as such, may also be lifted manually in that the weight of the rolling gate is balanced by a series of springs which wind during the downward stroke of the gate and unwind during the upward stroke.
  • the irreversibility of the gearmotor prevents the rolling gate from being lifted manually by burglars when lowered; in this sense the irreversibility of the gearmotor offers further security against burglary attempts with respect to the locks or keys generally used on compensated rolling gates.
  • the start-up of the motor entails the automatic deactivation, even if not instantaneous, of the electric brake, which is operated by a spring and automatically and instantaneously stops the driving shaft as soon as the electric supply is cut off.
  • gearmotors are always fitted with a device for the manual release of the electric brake, for emergency situations, when it is necessary to lift or lower the rolling gate even in the case of temporary power failure of the electric plant or the mains.
  • Said manual release device is generally operated by pulling a metal cable attached to the electric brake.
  • This free-wheel is combined to means which drive an electric contact set to invert the rolling way of said shaft during the gate descent, as soon as said free-wheel starts working.
  • This gearmotor does not provide for means which allow the temporary interruption of the connection between the free-wheel and the gearmotor's shaft.
  • the purpose of this invention is to design a new gearmotor model for metal rolling gates, counter-weighed by springs, whose movement irreversibility is provided by a completely mechanical device in which the emergency cable that excludes said device is attached to one end of the driving shaft.
  • said mechanical irreversibility device offers two main advantages: the first is an economical saving in that the mechanical device is less expensive than the above electric brake; the second is an operating advantage in that said device can instantaneously stop the driving shaft in the case of a power failure, contrary to the electric brake whose action is not instantaneous.
  • the gearmotor according to the invention uses a mechanical irreversibility device which is commonly known which permits the drive of the rotary motion only if said motion is introduced on one of the two elements of the drive which is on the other hand prevented in the reverse direction.
  • Said irreversibility device is mounted at the end of the driving shaft immediately in front of the gearmotor which is connected to the irreversibility device by a mobile front connecting coupling.
  • the driving shaft is supported so as to perform a backward axial stroke in order to release the irreversibility device from the gearmotor, in case of emergency in order to allow the manual movement of the rolling gate.
  • the backward stroke of the driving shaft can be activated by a special emergency cable attached to the driving shaft on the opposite end with respect to the end on which the irreversibility device is mounted.
  • the gearmotor according to the invention consists of a conventional electric motor (1) and a gearmotor (2) between which is fitted an irreversibility device (3) consisting of two elements (3a and 3b) coupled so as to allow transmission of the motion only in one direction.
  • the other element (3b) of this device (3) is provided with teeth (3c) which permit a front connection type coupling between the device (3) and the gearmotor (2).
  • the shaft (1a) of the motor (1) is supported so as to perform a short axial stroke (d) which makes it possible to engage and disengage the device (3) and the gearmotor (2) which are coupled by means of a spring (4) fitted on the shaft (1a) and pressing against the element (3a) keyed on the shaft in order to push and keep the device (3) pressed against the gearmotor (2).
  • a fork bracket (5), sliding within a housing (6) and fixed to the motor (1) casing, is hooked at the end of the shaft (1a) opposite to the end on which the device (3) is keyed.
  • the emergency cable (7) is in turn attached to said bracket (5); it being provided that by pulling the cable (7) it is possible to slide back the shaft (1a) in order to disengage the device (3) from the gearmotor (2). Naturally said cable (7) should be pulled with enough force to overcome the resistance of the spring (4) which presses against the above element (3a) - belonging to the irreversibility device (3) - keyed on shaft (1a).

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Transmission Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Gear Transmission (AREA)

Claims (1)

  1. Elektrogetriebemotor für Metallrollläden, bestehend aus einem Elektromotor (1), einer Welle (1a), einem Untersetzungsgetriebe (2) und einer Nichtumkehrbarkeitsvorrichtung (3), welche aus zwei Teilen (3a und 3b) gebildet wird, die so gekoppelt sind, dass die Bewegungsübertragung nur von der Welle (1a) in Richtung Untersetzungsgetriebe (2) möglich ist, dadurch gekennzeichnet, dass:
    die besagte Nichtumkehrbarkeitsvorrichtung (3) zwischen den Motor (1) und das Untersetzungsgetriebe (2) eingebaut ist, welches an die Vorrichtung (3) mit einer beweglichen Fronteinsteck-Kupplung verbunden ist;
    besagte Motorwelle (1a) so gelagert ist, dass ein kurzer Achslauf (d) ausgeführt werden kann, mit dem das Ein- und Auskuppeln zwischen der Vorrichtung (3) und dem Untersetzungsgetriebe (2) ermöglicht wird, welche normalerweise dank einer Feder (4) zusammengekuppelt sind, die auf der Welle (1a) steckt und gegen das auf die Welle aufgepresste Element (3a) drückt;
    ein gabelförmiger Bügel (5) an jenem Ende der Welle (1a) eingehängt ist, welches der aufgepressten Vorrichtung (3) gegenüberliegt und in einem Aufnahme- und Führungssitz (6) gleitet, welcher auf dem Gehäuse des Motors (1) befestigt ist;
    ein Notseil (7) seinerseits an dem besagten Bügel (5) eingehängt ist.
EP19970830648 1996-12-13 1997-12-04 Elektrischer Motor mit Getriebe für metallische Rollgitter Expired - Lifetime EP0848137B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMC960134 1996-12-13
IT96MC000134A IT1289339B1 (it) 1996-12-13 1996-12-13 Motoriduttore elettrico per serrande metalliche avvolgibili

Publications (2)

Publication Number Publication Date
EP0848137A1 EP0848137A1 (de) 1998-06-17
EP0848137B1 true EP0848137B1 (de) 2001-06-27

Family

ID=11357296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970830648 Expired - Lifetime EP0848137B1 (de) 1996-12-13 1997-12-04 Elektrischer Motor mit Getriebe für metallische Rollgitter

Country Status (3)

Country Link
EP (1) EP0848137B1 (de)
ES (1) ES2159103T3 (de)
IT (1) IT1289339B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007011244A1 (en) * 2005-07-21 2007-01-25 Chamberlain Australia Pty Limited Door opener

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19953200A1 (de) * 1999-11-05 2001-05-10 Valeo Auto Electric Gmbh Rohrmotor
DE102008052843B4 (de) * 2008-10-23 2019-05-02 Küster Holding GmbH Antriebseinheit für Verstelleinrichtungen in Kraftfahrzeugen
IT201800004927A1 (it) * 2018-04-27 2019-10-27 Motoriduttore elettrico perfezionato per serrande avvolgibili.
IT202200008747A1 (it) * 2022-05-03 2022-08-03 Paolo Sacco Dispositivo di sezionamento elettrico - dispositivo in dotazione su freno elettromagnetico, per motoriduttori centrali per serrande avvolgibili, in grado di inibire il funzionamento del motoriduttore centrale in caso venga posizionato in stato di sblocco (motoriduttore centrale reversibile)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519063A1 (fr) * 1981-12-30 1983-07-01 Carpano & Pons Dispositif auxiliaire de commande pour portes ou grilles enroulables, portes selectionnelles ou similaires
DE3608988A1 (de) * 1986-03-18 1987-09-24 Lothar Huber Vorrichtung zur handbetaetigung einer elektromotorisch antreibbaren wickelwelle z.b. eines rolladens
JPH076470B2 (ja) * 1989-03-15 1995-01-30 三菱電機株式会社 同軸形スタータ装置
FR2671582B1 (fr) * 1991-01-14 1993-04-16 Simu Mecanisme de securite pour dispositifs de fermeture a commande electrique du type des volets roulants et similaires.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007011244A1 (en) * 2005-07-21 2007-01-25 Chamberlain Australia Pty Limited Door opener

Also Published As

Publication number Publication date
ITMC960134A1 (it) 1998-06-13
EP0848137A1 (de) 1998-06-17
ES2159103T3 (es) 2001-09-16
IT1289339B1 (it) 1998-10-02

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