EP0750094A1 - Automatische Schliessvorrichtung für Rolladen - Google Patents

Automatische Schliessvorrichtung für Rolladen Download PDF

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Publication number
EP0750094A1
EP0750094A1 EP96304336A EP96304336A EP0750094A1 EP 0750094 A1 EP0750094 A1 EP 0750094A1 EP 96304336 A EP96304336 A EP 96304336A EP 96304336 A EP96304336 A EP 96304336A EP 0750094 A1 EP0750094 A1 EP 0750094A1
Authority
EP
European Patent Office
Prior art keywords
shutter
slats
open
assembly according
drive
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.)
Ceased
Application number
EP96304336A
Other languages
English (en)
French (fr)
Inventor
Fenton J. Wheeler
Harold P. Sales
Terrence Lemcke
Michael P. Sales
John Gerdtz
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.)
Hunter Douglas International NV
Original Assignee
Hunter Douglas International NV
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 Hunter Douglas International NV filed Critical Hunter Douglas International NV
Publication of EP0750094A1 publication Critical patent/EP0750094A1/de
Ceased 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
    • E06B9/80—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
    • 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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E06B9/165—Roller shutters with closing members formed of slats or the like with slats disappearing in each other; with slats the distance between which can be altered
    • 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
    • E06B2009/801—Locking arrangements
    • E06B2009/805—Locking arrangements located on or in the guides

Definitions

  • the present invention relates generally to roller shutters, roller covers and roller doors.
  • Roller shutters are normally installed over windows so that when the shutter is open, the window is exposed and functions in the usual way. In the closed position, however, the shutter covers the window.
  • Such shutters thereby provide a number of advantages including noise reduction, thermal insulation, control over light and air flow, protection against storms and bush fires, increased privacy, and security.
  • Roller shutters normally comprise a series of hingedly interconnected transverse slats which are slidably supported by spaced apart longitudinal guide tracks, disposed on either side of the window frame.
  • a drive mechanism either manual or electric, operates on the interconnected slats to open or close the shutter.
  • the drive mechanism operates to wind the slats to or from a roller, between the open and closed positions.
  • the roller and associated drive mechanism are normally housed within a head box positioned above the window frame.
  • the slats may simply be driven to or from a storage bay by a drive shaft.
  • the slats are typically connected by interlocking edge flanges which are designed with a degree of free play to permit relative translational movement between adjacent slats. Movement of adjacent slats apart from one another into an open configuration normally exposes a series of ventilation holes or slots formed in the interlocking edge flanges. This allows a limited amount of light and air to pass through, with the shutter itself remaining in the closed position. Conversely, movement of adjacent slats toward one another into a closed configuration conceals the ventilation slots and thereby substantially seals the shutter, so that neither light nor air may pass through.
  • EP-B-040,800 discloses a roller shutter assembly comprising a shutter formed from a plurality of hingedly interconnected transverse slats slidably supported by spaced apart guide tracks; drive means operable progressively to move the shutter between an open and a closed position; connection means connecting the slats for relative movement between an open configuration wherein adjacent slats are spaced apart to expose intermediate apertures and thereby to allow light to pass through the shutter, and a closed configuration wherein adjacent slats abut to substantially close the shutter; and remote locking means operable to lock an end of the shutter remote from the drive means in the closed position.
  • the unlocking mechanism can usually be activated externally by a potential intruder.
  • the present invention is characterised in that a partial opening mechanism is provided to enable the drive means to move the shutter a predetermined amount toward the open position with the remote locking means simultaneously engaged, to draw the slats into the open configuration, thereby allowing a degree of light to pass through the open slats with the shutter remaining locked in the closed position.
  • the drive means preferably include a drive roller adapted to wind the shutter between the open and closed positions.
  • each pair of adjacent slats is connected by complementary interlocking edge flanges, at least one of which incorporates a series of said apertures.
  • the apertures preferably take the form of ventilation slots formed in the edge flanges and disposed to permit the passage of both light and air with the slats spaced apart in the open configuration, and to substantially seal the shutter with the slats moved together in the closed configuration. It will be appreciated, however, that the apertures may also take the form of transparent or translucent windows, in which case light, but not necessarily air, would be permitted to pass through the open slats.
  • the interlocking edge flanges preferably also provide the degree of pivotal interconnection between the slats required to enable the shutter to be wound onto the drive roller.
  • the slats may simply be interconnected by flexible backing tape, or other suitable means.
  • the drive roller is preferably housed within a head box, and extends axially between spaced apart end plates.
  • the roller preferably cooperates with a bearing assembly at each end.
  • a bearing assembly is incorporated at each end of the roller, each bearing engaging a complementary spigot protruding inwardly from the respective end plate.
  • the roller may be journalled at each end in a bearing aperture or cavity provided in the respective end plate.
  • the locking means preferably comprise a spring loaded or gravity actuated latch mechanism disposed automatically to lock a lowermost slat or a bottom bar upon closing of the shutter.
  • the partial opening mechanism preferably comprises a ring gear mounted within one of the end caps, and driven by a complementary pinion mounted on the shutter drive roller.
  • the ring gear preferably includes a trigger formation disposed to actuate a lock release mechanism once during each period of rotation of the ring gear.
  • the gear ratio between the pinion and ring gear is preferably 2:1, so that the lock release mechanism is activated only once for each two full rotations of the shutter drive roller.
  • the preferred trigger mechanism includes a cam profile formed on the outer periphery of the ring gear.
  • the cam preferably defines a ramped profile terminating in a protruding shoulder portion.
  • the shoulder portion is preferably adapted to engage an actuating rod upon rotation of the drive roller in a shutter opening direction.
  • the actuating rod preferably extends down one of the guide tracks to release the remote locking mechanism.
  • the cam profile preferably has an effective duration corresponding to around 16° of rotation of the drive roller, so that a minimum of approximately 16° of rotation of the drive roller is required to activate the trigger.
  • Figures 1 and 2 show the general layout of a conventional prior art roller shutter assembly 1.
  • This assembly comprises a plurality of hingedly interconnected transverse slats 2 slidably supported by spaced apart guide tracks 3 which are normally disposed on either side of a window or door (not shown).
  • a drive mechanism 5 is housed within a head box 6 which is normally positioned above the window, between the guide tracks.
  • the drive mechanism 5 includes a main drive roller 10, each end of which incorporates a threaded insert or plug 11 which in turn supports a central bearing assembly 12 (see Figure 2). Each bearing is engaged by a corresponding axial spigot 13 protruding inwardly from the adjacent end cap 14 of the head box.
  • the drive means further includes a drive spool 15 keyed internally to one end of the drive roller 10.
  • the drive spool is actuated remotely by means of a flexible tape 17, which may be drawn either manually, electrically, or by any other suitable means, to progressively wind the shutter to or from the drive roller, between the open and closed positions.
  • Each adjacent pair of slats is connected by a corresponding pair of interlocking edge flanges (not shown), which define a series of longitudinally extending ventilation slots 20, as best seen in Figure 1.
  • the edge flanges are designed to provide a degree of free play between adjacent slats which allows the slats to move apart from one another into an open configuration, wherein the ventilation slots 20 are exposed, to allow a limited degree of light and air to pass through the shutter whilst remaining in the closed position.
  • the slats are also able to butt together into a closed configuration wherein the ventilation apertures 20 are concealed, and the shutter as a whole is thereby substantially sealed.
  • the interlocking edge flanges also provide the degree of pivotal interconnection required between the slats to enable the shutter to be wound onto the drive roller as the shutter is progressively closed.
  • the present invention is adapted to be integrated with the basic framework and components of a conventional shutter assembly as described above.
  • the invention additionally provides a partial opening mechanism.
  • the partial opening mechanism 30 comprises an internal ring gear 31 which is rotatably supported by a housing 32 mounted to one of the end plates 14, and optionally retained by means of a cover plate 33.
  • the internal ring gear is in constant meshing engagement with a pinion 35 which is integrally formed in the corresponding roller insert 11, and is thereby effectively integral and coaxial with the drive roller 10.
  • the external periphery of the ring gear incorporates a trigger mechanism in the form of a lifting cam 36 comprising a ramped portion 37, which terminates in a protruding shoulder portion 38.
  • a trigger mechanism in the form of a lifting cam 36 comprising a ramped portion 37, which terminates in a protruding shoulder portion 38.
  • the cam shoulder 38 is adapted to engage a lifting finger 40 formed in the upper end of an actuating rod 41 which extends down the adjacent guide track 3 to remote locking mechanism (described below).
  • the outwardly protruding shoulder 38 engages and begins to move the lifting finger 40 upwardly.
  • the lifting finger is constrained for movement along guide slot 43, whereby it is constrained progressively to move upwardly and outwardly, away from the lifting cam, against the action of return spring 45.
  • the lifting finger is released from the shoulder of the lifting cam, and returns together with the actuating rod to its original position, downwardly under the influence of gravity, and inwardly under the influence of the return spring 45.
  • the gear ratio between the pinion and ring gear is preferably 2:1, so that the lock release mechanism is activated only once for each two full rotations of the shutter drive roller.
  • Figures 6 to 8 show the lower end of the actuating rod 41, and the associated remote locking mechanism, indicated generally as 50.
  • the locking mechanism is integral with a transverse lower bar 51, which effectively comprises the lowermost slat of the shutter.
  • the locking mechanism incorporates a pivotal latch 55 which, as best seen in Figure 6, is biased outwardly by latch spring 56.
  • a locking tab 57 is mounted within the corresponding guide rail to prevent the shutter from being opened from the closed position with the pivotal latch protruding in the locked configuration ( Figure 6).
  • the shutter drive mechanism is installed with the meshing relationship or "timing" between the pinion and ring gear pre-set. This ensures that the lifting cam on the ring gear is positioned correctly relative to the lifting finger 40 on the actuating rod for a given length of shutter. This would normally be pre-set at the factory or on site, and would not change in use.
  • the drive mechanism is initially activated to commence lowering of the shutter.
  • the drive roller 10 and associated pinion 35 rotate in a clockwise direction, when viewing Figure 3.
  • the outer ring gear will of course rotate in the same direction and so the lifting cam will have no effect on the actuating rod, aside from periodically displacing it horizontally outwardly against the return spring 45.
  • each slat is progressively lifted into the open configuration, thereby exposing the ventilation slots directly below it. This process continues downwardly toward the bottom of the shutter until all the slats are moved apart into the open configuration, with the remote locking mechanism still fully engaged.
  • the ventilation slots allow a limited amount of light and air to pass through, whilst the shutter remains securely and positively locked in the closed position.
  • the timing of the system is calibrated so that just prior to this point, the lifting cam 36 on the ring gear 31 begins to engage the lifting finger 40 of the actuating rod. Consequently, subsequent rotation of the ring gear by further actuation of the drive mechanism lifts the actuating rod upwardly.
  • the lock release cam 60 at its remote end is correspondingly lifted to retract the pivotal latch 55 from the locking tab 57. This effectively releases the locking mechanism, and allows the shutter to open.
  • the guide slot 43 is configured such that, as soon as the pivotal latch 55 has cleared the locking tab 57, the lifting finger of the actuating rod is released from the lifting cam, thereby allowing the actuating rod 41 and the lock release cam 60 to drop down to their rest positions (see Figure 8). Further operation of the drive mechanism progressively winds the slats onto the drive roller, and thereby opens the shutter in the usual way.
  • the angular duration of the lifting cam profile is such that approximately 16° of rotation of the shutter drive roller is required to activate the lock release mechanism. Accordingly, by adjusting the timing of the pinion with respect to the ring gear, the lock release mechanism can be calibrated to trigger anywhere in the range of 16° to 714° of rotation of the drive roller. The desired release point within this range will depend primarily upon the cumulative degree of free play in the slats, as they move between their open and closed configurations. For a given type of slat, this in turn will be a direct function of the length or "drop" of the shutter. However, once the timing has been pre-set it cannot self adjust in service, and therefore provides consistent and reliable operation.
  • the present invention provides a shutter assembly with a remote locking mechanism which is both engaged and released automatically. Furthermore, it allows the shutter slats to be moved into the open configuration, thereby allowing light and air to pass through the ventilation holes, which the shutter itself remaining securely locked in the closed position.
  • the invention represents a practical and commercially significant improvement over the prior art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP96304336A 1995-06-19 1996-06-10 Automatische Schliessvorrichtung für Rolladen Ceased EP0750094A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPN3638A AUPN363895A0 (en) 1995-06-19 1995-06-19 Roller shutter auto-lock assembly
AUPN3638/95 1995-06-19

Publications (1)

Publication Number Publication Date
EP0750094A1 true EP0750094A1 (de) 1996-12-27

Family

ID=3787979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96304336A Ceased EP0750094A1 (de) 1995-06-19 1996-06-10 Automatische Schliessvorrichtung für Rolladen

Country Status (2)

Country Link
EP (1) EP0750094A1 (de)
AU (1) AUPN363895A0 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333312A (en) * 1998-01-15 1999-07-21 Amber Doors Ltd A roller shutter locking mechanism
EP1018592A1 (de) 1999-01-04 2000-07-12 Fritz Stalder Verriegelungsvorrichtung für ein Verschlussorgan einer Gebäudeöffnung, insbesondere einen Rolladen
EP1067270A1 (de) 1999-07-06 2001-01-10 Rufalex Rolladensysteme AG Verriegelungsvorrichtung für ein Verschlussorgan einer Gebäudeöffnung, insbesondere einen Rollladen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2521183A1 (de) * 1975-05-13 1976-11-25 Manfred Michel Rolladensicherung
FR2520432A1 (fr) * 1982-01-26 1983-07-29 Bubendorff Richard Dispositif de verrouillage automatique du tablier deploye d'un volet roulant
DE3323663A1 (de) * 1982-11-23 1984-05-24 Friedhelm 5778 Meschede Houpt Rolladen mit einbruchsicherung
DE9400791U1 (de) * 1994-01-19 1994-03-03 Alwiplast Gmbh & Co Kg Moderne Rolladensicherung
EP0585525A1 (de) * 1992-08-19 1994-03-09 Gmi Holdings Inc Endschalteranordnung für Garagentorantrieb
DE4403651A1 (de) * 1994-02-05 1995-08-10 Helmut Hartmann Rolladen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2521183A1 (de) * 1975-05-13 1976-11-25 Manfred Michel Rolladensicherung
FR2520432A1 (fr) * 1982-01-26 1983-07-29 Bubendorff Richard Dispositif de verrouillage automatique du tablier deploye d'un volet roulant
DE3323663A1 (de) * 1982-11-23 1984-05-24 Friedhelm 5778 Meschede Houpt Rolladen mit einbruchsicherung
EP0585525A1 (de) * 1992-08-19 1994-03-09 Gmi Holdings Inc Endschalteranordnung für Garagentorantrieb
DE9400791U1 (de) * 1994-01-19 1994-03-03 Alwiplast Gmbh & Co Kg Moderne Rolladensicherung
DE4403651A1 (de) * 1994-02-05 1995-08-10 Helmut Hartmann Rolladen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333312A (en) * 1998-01-15 1999-07-21 Amber Doors Ltd A roller shutter locking mechanism
EP1018592A1 (de) 1999-01-04 2000-07-12 Fritz Stalder Verriegelungsvorrichtung für ein Verschlussorgan einer Gebäudeöffnung, insbesondere einen Rolladen
EP1067270A1 (de) 1999-07-06 2001-01-10 Rufalex Rolladensysteme AG Verriegelungsvorrichtung für ein Verschlussorgan einer Gebäudeöffnung, insbesondere einen Rollladen

Also Published As

Publication number Publication date
AUPN363895A0 (en) 1995-07-13

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