WO2001055548A1 - Systeme d'entrainement - Google Patents

Systeme d'entrainement Download PDF

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Publication number
WO2001055548A1
WO2001055548A1 PCT/GB2001/000250 GB0100250W WO0155548A1 WO 2001055548 A1 WO2001055548 A1 WO 2001055548A1 GB 0100250 W GB0100250 W GB 0100250W WO 0155548 A1 WO0155548 A1 WO 0155548A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
drive
contact surface
output shaft
drive system
Prior art date
Application number
PCT/GB2001/000250
Other languages
English (en)
Inventor
Dominic William Barraclough
Original Assignee
Securedrive Systems Limited
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 Securedrive Systems Limited filed Critical Securedrive Systems Limited
Priority to AU2001226965A priority Critical patent/AU2001226965A1/en
Priority to EP01901306A priority patent/EP1252412A1/fr
Publication of WO2001055548A1 publication Critical patent/WO2001055548A1/fr

Links

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
    • E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
    • 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

Definitions

  • the present invention relates to a drive system, in particular a drive system for a roller door, in particular a roller shutter door or a rubber door.
  • Roller shutter doors and rubber doors are widely used in commercial and industrial application, as security doors and/or for protection against fire.
  • the door is mounted on a barrel and is raised by rotating the barrel in a first direction and hence winding the door onto the barrel and lowered by rotating the barrel in the opposite direction and hence unwinding the door from the barrel.
  • Known manual override systems may have the disadvantage that they require an electromechanical interlock. This means that, in order to engage the manual drive it is necessary to engage the manual drive mechanically, allow a microswitch to detect that the manual drive is engaged and then to switch off power to the motor. It is a disadvantage of such a system that, in the case of failure of the microswitch to operate, power is still switched to the main motor.
  • the motor must be able to operate for a reasonable period, typically for at least 8 minutes before thermal cut out, which means in practice that, in order to achieve this performance, it has been found desirable to use a motor which can operate at a high temperature.
  • an F-class motor is generally used, but even with such a motor the working temperature is close to the temperature at which the thermal cut out will operate, which is clearly disadvantageous. If it were not necessary to overcome the added frictional forces, then it would be possible either to use a cheaper B-class motor or to use an F-class motor operating well within its temperature range. The use of a motor to overcome excessive frictional forces leads to increased energy consumption and may reduce the life of the motor.
  • the present invention provides a drive system for a roller door, which drive system comprises a motor; an output shaft from the motor; and a drive flange drivably connected to the output shaft and adapted to be mounted within the barrel of the roller door in driving engagement therewith characterised in that the drive assembly further comprises a braking surface mounted for rotation with the output shaft of the motor, auxiliary drive means for driving the output shaft of the motor and comprising a friction disc having a first frictional contact surface selectively engageable with the braking surface mounted for rotation with the motor output shaft and a second frictional contact surface, and an electromagnetic brake assembly including a contact pad for contacting the second frictional contact surface of the override drive means, which contact pad is movable between a release position when electrical energy is being supplied to the motor and to the electromagnetic brake assembly and a braking position when the supply of electrical energy to the motor and to the electromagnetic brake assembly is interrupted and the first frictional contact surface is engaged with the braking surface and the second frictional contact surface is engaged with the second contact surface of the auxiliary drive means.
  • the auxiliary drive means is manually powered.
  • the auxiliary drive means is powered by means of an auxiliary motor which auxiliary motor is preferably powered by a battery, in particular a rechargeable battery.
  • the auxiliary motor can be programmed to drive the door into the closed state in a controlled manner if, for example, there is a power failure when the door is in the open or partially open state.
  • This embodiment is particularly suitable for use where the roller door operates as a fire door, since if there is a failure of mains power, the door can be lowered automatically in a controlled manner using the auxiliary motor and thus providing an effective fire barrier.
  • Figure 1 is a view of a shutter door assembly
  • FIG. 2 is a longitudinal sectional view of an embodiment of a drive system.
  • a roller door assembly shown generally at 10 comprises a door 2 mounted on a barrel 4 by means of fixings 6.
  • the assembly 10 is mounted in a fixed framework 8.
  • An axle 12 projects from one end 14 of the barrel 4 and is received in a bearing 16 mounted on the framework 8.
  • a drive assembly shown generally at 18 is located at the other end 20 of the barrel 4 in driving engagement therewith.
  • the door 2 may be of any suitable flexible construction, such as interlinked metal laths or rubber sheeting.
  • the barrel 4 As the barrel 4 is rotated in a first direction, the door 2 is wound onto the barrel 4 and the door 2 is raised and hence is opened. Rotation of the barrel 4 in the opposite direction unwinds the door 2 from the barrel 4, and the door is lowered and hence closed.
  • a motor 22 which is of the squirrel cage or induction type is located within a housing 24.
  • the motor 22 comprises a rotor assembly 26 mounted within a stator 28.
  • a hollow rotor shaft 30 is mounted in the rotor 26 for rotation therewith.
  • a first end 32 of the shaft 30 engages the first stage 34 of a three stage planetary gear box 36.
  • the first stage 34 of the gear box 36 is connected via a second stage 38 to an output or third stage 40 of the gear box 36.
  • the output stage 40 is drivingly connected to a drive bung 42 by means of a drive pin 44.
  • the shaft 30 is supported by a bearing 46, which is itself retained by a ring gear end cap 48 fixedly mounted within the housing 2.
  • the drive bung 42 is adapted to be mounted inside the barrel 4 of the door assembly 10 in driving engagement therewith.
  • the second end 50 of the shaft 30 of the motor 22 extends from the rotor 26 away from the gearbox assembly 36.
  • a brake disc 52 is mounted on the end 50 of the shaft 30 for rotation therewith.
  • the brake disc 52 is supported by a ball bearing 54 and is provided with a polished contact surface 56 on its face remote from the motor 22.
  • An electro magnetic brake assembly shown generally at 60 comprises a pair of electromagnets 62, compression springs 64 and a polished contact surface 66, and is mounted within the housing 24 in axial alignment with the motor 22 and shaft 30.
  • the contact surface 66 of the electromagnetic brake assembly 60 faces towards the contact surface 56 of the brake disc 52 and is spaced therefrom.
  • a clutch/brake assembly shown generally at 68 comprises a friction disc 70 provided with friction pads 72, 74 mounted on an auxiliary drive shaft 76 for rotation therewith and is mounted within the housing 24.
  • the shaft 76 is axially aligned with the shaft 30 of the motor 22 and extends through the hollow centre of the electromagnetic brake assembly 60 effectively to form a split spine shaft assembly.
  • the end of the shaft 76 remote from the friction disc 70 is connected to an auxiliary drive system 78, which may be operated manually or by means of an auxiliary motor.
  • the clutch/brake assembly 68 is located so that the friction disc 70 is positioned between the brake disc 52 and the brake surface 66.
  • the friction disc 70 is provided on each face thereof with a friction surface 72, 74.
  • the contact surface 66 engages and brakes the braking surface 72 of the friction disc 70 and the opposed brake surface 74 engages and brakes the contact surface 56 of the brake disc 52.
  • the drive flange 42 is thus braked against rotation.
  • Power can be selectively supplied to the motor 22, and to the electromagnetic brake assembly 60 by means of a conventional switch mechanism (not shown).
  • a conventional switch mechanism (not shown).
  • the magnets 62 operate against the biassing force of the compression spring 64 and the contact surface 66 is disengaged from the facing brake surface 72 of the friction disc 70.
  • the brake surface 74 disengages from the contact surface 56 and the shaft 30 is thus free to rotate.
  • the electromagnetic brake assembly 60 At the same time as power is supplied to the electromagnetic brake assembly 60, it is also supplied to the motor 22.
  • the shaft 30 is driven by the motor 22 and drive is transmitted to the drive flange 42 via the three stage planetary gear box 36.
  • the interruption in power supply to the electromagnetic brake assembly 60 causes the brake assembly to engage and allows the door 2 to be held in the position, either open, closed or partially open, in which it was when the supply failed.
  • An auxiliary drive 78 may be incorporated to allow the door to be opened or closed either manually or automatically in the case of an interruption to the power supply.
  • the shaft 76 is rotated in the appropriate direction and the friction disc 70 rotates with the shaft 76.
  • the friction surface 72 slips against the contact subrace 66 of the brake assembly 60 which is prevented from rotating, but the friction surface 74 engages the surface 56 of the brake disc 52 and hence drive the shaft 32, as the friction disc 70 is rotated.
  • the materials from which the friction pads 72 and 74 are manufactured may be selected so that the friction between the pad 74 and the surface 56 is greater than the friction between the pad 72 and the surface 66, suitably by a factor of 2:1.
  • roller shutter door is intended primarily as a security door, for example as the entrance door to commercial premises then the auxiliary manual drive 78 may be designed so that it is operable only to lower and close the door 2.
  • the auxiliary drive 78 may be an auxiliary motor (not shown) powered by rechargeable battery.
  • the auxiliary drive 78 in such a case may be designed in known manner so as to operate in response to a signal either that there has been a mains power failure or that a fire has been detected, to lower the door and thus provide an effective fire barrier.

Abstract

L'invention concerne un système d'entraînement pour une porte à volet roulant. Ce système comprend un moteur, un arbre de sortie provenant de ce moteur, et une bride d'entraînement reliée en vue d'assurer un entraînement à l'arbre de sortie, et adaptée pour être fixée dans le barillet de la porte, en prise d'entraînement avec ce dernier. L'ensemble d'entraînement comprend, en outre, une surface de freinage fixée en vue de sa rotation à l'arbre de sortie du moteur et des moyens d'entraînement auxiliaires pour entraîner l'arbre de sortie du moteur. Ces moyens comprennent un disque de frottement présentant une première surface de contact par friction pouvant se mettre en prise de manière sélective avec la surface de freinage fixée en vue de sa rotation à l'arbre de sortie du moteur. Ces moyens comprennent une deuxième surface de contact par friction et un ensemble de frein électromagnétique comportant un plot de contact pour entrer en contact avec la deuxième surface de contact par friction du moyen d'entraînement du mécanisme de surpassement. Ce plot de contact peut se déplacer entre une position de libération lorsque l'énergie électrique est fournie au moteur et à l'ensemble de frein électromagnétique, et une position de freinage lorsque l'alimentation en énergie électrique du moteur et de l'ensemble de frein électromagnétique est interrompue. Lorsque l'alimentation en énergie électrique du moteur et l'ensemble de frein électromagnétique est interrompue, la première surface de contact par friction se met en prise avec la surface de freinage et la deuxième surface de contact par friction se met en prise avec la deuxième surface de contact du moyen d'entraînement auxiliaire.
PCT/GB2001/000250 2000-01-25 2001-01-24 Systeme d'entrainement WO2001055548A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001226965A AU2001226965A1 (en) 2000-01-25 2001-01-24 Drive system
EP01901306A EP1252412A1 (fr) 2000-01-25 2001-01-24 Systeme d'entrainement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0001529.7 2000-01-25
GB0001529A GB0001529D0 (en) 2000-01-25 2000-01-25 Drive system for roller shutter

Publications (1)

Publication Number Publication Date
WO2001055548A1 true WO2001055548A1 (fr) 2001-08-02

Family

ID=9884196

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/000250 WO2001055548A1 (fr) 2000-01-25 2001-01-24 Systeme d'entrainement

Country Status (4)

Country Link
EP (1) EP1252412A1 (fr)
AU (1) AU2001226965A1 (fr)
GB (1) GB0001529D0 (fr)
WO (1) WO2001055548A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2875530A1 (fr) * 2004-09-21 2006-03-24 Bubendorff Sa Dispositif d'entrainement a debrayage automatique pour systeme de fermeture de batiment.
WO2006040747A1 (fr) * 2004-10-15 2006-04-20 Dynaco International S.A. Dispositif avec un tambour dans lequel est monte un moteur d'entrainement
CN107829669A (zh) * 2017-12-01 2018-03-23 福建安麟智能科技股份有限公司 一种卷帘门电机手动开门系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2568932A1 (fr) * 1984-08-09 1986-02-14 Lassie Patrick Dispositif pour manoeuvrer les volets roulants
DE3504489A1 (de) * 1985-02-09 1986-08-14 Lothar 7984 Wolpertswende Huber Vorrichtung zur handbetaetigung der elektromotorisch antreibbaren wickelwelle z.b. eines rolladens bei stromlosem elektromotor
EP0775798A1 (fr) * 1995-11-27 1997-05-28 Simu Dispositif d'entraînement en rotation d'un élément d'enroulement de volet roulant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2568932A1 (fr) * 1984-08-09 1986-02-14 Lassie Patrick Dispositif pour manoeuvrer les volets roulants
DE3504489A1 (de) * 1985-02-09 1986-08-14 Lothar 7984 Wolpertswende Huber Vorrichtung zur handbetaetigung der elektromotorisch antreibbaren wickelwelle z.b. eines rolladens bei stromlosem elektromotor
EP0775798A1 (fr) * 1995-11-27 1997-05-28 Simu Dispositif d'entraînement en rotation d'un élément d'enroulement de volet roulant

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2875530A1 (fr) * 2004-09-21 2006-03-24 Bubendorff Sa Dispositif d'entrainement a debrayage automatique pour systeme de fermeture de batiment.
EP1640555A1 (fr) * 2004-09-21 2006-03-29 BUBENDORFF Société Anonyme Dispositif d'entraînement a débrayage automatique pour système de fermeture de bâtiment
WO2006040747A1 (fr) * 2004-10-15 2006-04-20 Dynaco International S.A. Dispositif avec un tambour dans lequel est monte un moteur d'entrainement
BE1016242A3 (fr) * 2004-10-15 2006-06-06 Dynaco International Sa Dispositif avec un tambour dans lequel est monte un moteur d'entrainement.
US8608457B2 (en) 2004-10-15 2013-12-17 Dynaco Europe Nv Device with a drum with a drive motor mounted therein
CN107829669A (zh) * 2017-12-01 2018-03-23 福建安麟智能科技股份有限公司 一种卷帘门电机手动开门系统
CN107829669B (zh) * 2017-12-01 2023-12-26 福建安麟智能科技股份有限公司 一种卷帘门电机手动开门系统

Also Published As

Publication number Publication date
GB0001529D0 (en) 2000-03-15
EP1252412A1 (fr) 2002-10-30
AU2001226965A1 (en) 2001-08-07

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