EP0722031A1 - Dispositif de surveillance d'un ressort de torsion précontraint - Google Patents

Dispositif de surveillance d'un ressort de torsion précontraint Download PDF

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Publication number
EP0722031A1
EP0722031A1 EP96100490A EP96100490A EP0722031A1 EP 0722031 A1 EP0722031 A1 EP 0722031A1 EP 96100490 A EP96100490 A EP 96100490A EP 96100490 A EP96100490 A EP 96100490A EP 0722031 A1 EP0722031 A1 EP 0722031A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
winding body
door leaf
shaped element
axis
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.)
Withdrawn
Application number
EP96100490A
Other languages
German (de)
English (en)
Inventor
Stephan Dipl.-Phys. Hörmann
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.)
Hoermann KG Dissen
Original Assignee
Hoermann KG Dissen
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
Priority claimed from DE19524495A external-priority patent/DE19524495A1/de
Application filed by Hoermann KG Dissen filed Critical Hoermann KG Dissen
Publication of EP0722031A1 publication Critical patent/EP0722031A1/fr
Withdrawn legal-status Critical Current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
    • E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
    • E05D13/1269—Spring safety devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/003—Anti-dropping devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
    • E05D13/1261—Counterbalance devices with springs with canted-coil torsion springs specially adapted for overhead wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Definitions

  • the invention relates to a device for monitoring a prestressed torsion spring of a door, a door or the like, in particular a weight compensation spring for a one or more-part overhead door leaf or a roller shutter.
  • a roller curtain In the case of door leaves or roller curtains that can be moved overhead, it is customary, for example, to roll up a roller curtain onto a winding body, namely a shaft, in order to expose a building opening, for example an entrance or the like.
  • a winding body namely a shaft
  • the cable drums sit on a shaft which has a torsion spring at least at one end.
  • the winding body has torsion springs that support the movement of the door leaf or the roller shutter.
  • the torsion springs are tensioned during the closing movement of the door leaf or roller shutter.
  • the energy stored in the torsion springs is released during the opening movement of the door leaf or the roller curtain to the winding body or the shaft with the cable drums, so that the torsion springs act in particular as weight compensation springs that support the opening of the door leaf or the roller curtain by release of energy and which counteract the closing of the door leaf or the roller shutter to the extent that a sudden closing of the door leaf or the roller shutter with the associated risk of injury is avoided.
  • This separate energy accumulator for the actuation of the catching member causes corresponding costs and, depending on the design, harbors the risk that in the normal operating state of the torsion spring a malfunction (broken spring) of this additionally provided energy accumulator will not be noticed and will not be available in the event of the torsion spring breaking.
  • the invention has for its object to provide a generic device that enables quick activation in the event of damage and has a simple and space-saving construction.
  • the solution to this problem provides a generic device that has a preferably non-rotatably mounted axle with a relatively rotatable winding body on this and a door leaf blocking device that connects the winding body rotatably with the axis in the event of spring breakage, so that the door leaf or the roller curtain crashes is avoided, in the event of spring breakage, a force acts in the axial direction of the axis on the door leaf blocking device, which connects the winding body to the axis.
  • the winding body rotatably mounted on the axis with the door leaf blocking device is thus used in the event of damage connected in such a way that a fall of the door leaf or the roller shutter is avoided.
  • a force acting in the axial direction of the axis acts on the door leaf blocking device.
  • the winding body is connected to the axis, so that a further rotation of the winding body and thus a crash of the roll armor is avoided.
  • a cable drum can also be arranged, which, as explained above with regard to the prior art, interacts with a sectional door.
  • the axial force component acting on the door leaf blocking device can be applied, for example, by the torsion spring, since torsion springs of the type in question change their axial length in the event of spring breakage, for example expand or shorten in particular.
  • the type of axial length change depends on the type of winding of the torsion spring wound from a spring bar. If, for example, the torsion spring is shortened axially during the tensioning process, its diameter increases and if the spring breaks, the axial length of the torsion spring increases.
  • the torsion spring is lengthened axially during the tensioning process, as a result of which its diameter is reduced in a space-saving and therefore advantageous manner and the torsion spring is axially shortened in the event of spring breakage.
  • the change in length of the torsion spring for example a torsion spring wound around the axis, can act on the door leaf blocking device, so that it is moved into its locked position.
  • additional energy storage devices are provided which act on the door leaf blocking device when a torsion spring connected to the door leaf blocking device breaks and releases the door leaf blocking device for axial movement along the axis.
  • the door leaf blocking device preferably consists of a locking element which is connected indirectly or directly to the axle in a rotationally fixed manner and a locking element which is connected indirectly or directly to the winding body, the locking element and locking element being displaceable in the axial direction relative to one another.
  • the blocking of the axle is thus carried out in a form-fitting manner, the locking element being designed as a ratchet wheel and the locking element as a pawl.
  • the blocking device is preferably designed as a claw coupling.
  • the pawl is ring-shaped and slidable over the ratchet wheel.
  • the ratchet wheel is non-rotatably arranged on the non-rotatable axis.
  • the pawl is pushed over the ratchet wheel, for example, by the torsion spring which changes in its axial length, as a result of which the blocking device engages in a form-fitting manner.
  • the winding body is also fixed to the axis, so that the door leaf or the roller curtain, which is fastened to the winding body, does not fall.
  • the door leaf blocking device preferably has a sleeve-shaped element which overlaps the axis.
  • the sleeve-shaped element is mounted so as to be displaceable in the axial direction of the axis.
  • the winding body is fixed on the axis in the axial direction, so that the sleeve-shaped element can be displaced relative to the winding body towards and away from the latter.
  • the sleeve-shaped element is preferably positively connected to the winding body.
  • the positive connection between the winding body and the sleeve-shaped element has the particular advantage that in the event of spring breakage, the winding body is braked quickly and effectively or the winding body is locked effectively, so that the door leaf is blocked as soon as possible after the torsion spring breaks.
  • the winding body has at least two, preferably four diametrically opposed receptacles, in which engage corresponding projections which are fastened to the sleeve-shaped element.
  • the forces transmitted in the event of spring breakage from the winding body to the door leaf blocking device pushed into its locked position act on as large an area as possible, so that only low pressures are transmitted to components of the two construction elements.
  • the sleeve-shaped element is preferably indirectly or directly connected to the torsion spring, which is in particular wound around the axis and is arranged either with its end opposite the sleeve-shaped element on the rotationally fixed axis or another element connected to the building in a rotationally fixed manner.
  • the torsion spring breaks, the sleeve-shaped element is retracted in the direction of the winding body by the expanding or contracting torsion spring, as a result of which the annular pawl is displaced over the ratchet wheel, so that the sleeve-shaped element rotates around the axis is interrupted or avoided.
  • the torsion spring can, in the event of spring breakage, also indirectly transmit a force component running in the axial direction of the axis to the sleeve-shaped element.
  • the sleeve-shaped element is connected to the torsion spring against a restoring force, so that the restoring force pulls the sleeve-shaped element into the blocking position when the torsion spring breaks.
  • the pawl is preferably located at an end of the sleeve-shaped element facing the winding body, the sleeve-shaped element in particular being formed in one piece with the pawl.
  • the ratchet wheel is arranged in the immediate vicinity of the pawl, so that even slight axial movements of the breaking torsion spring are sufficient to move the pawl into engagement with the ratchet wheel.
  • the sleeve-shaped element preferably has a collar which extends radially outwards at the end facing the winding body, it being provided according to a further feature of the invention that the projections are arranged in the region of the collar.
  • the axially movable transition to the locked state can also be made in such a way that the winding body is connected in a rotationally fixed manner to part of the door leaf blocking device by means of form-fitting elements, the elements being displaceable and by means of at least one force accumulator, preferably a compression spring, are preloaded, which relaxes when the torsion spring breaks and moves the part of the door leaf blocking device relative to the winding body into the locking position, in particular the pawl being pushed over the ratchet wheel.
  • a torsion spring is provided which contracts axially when the spring breaks. The door leaf blocking device is released in the axial direction, so that the necessary displacement of the door leaf blocking device into the locked position takes place by means of the energy accumulator.
  • An embodiment of this embodiment provides that the elements are designed as at least two bolts, which are mounted in at least two bores, which are arranged diametrically opposite on the winding body, and the bores in the sleeve-shaped element, preferably in the region of the collar, in particular in the region of the Reach through the projections.
  • the bolts are advantageously located in corresponding bores, which are arranged coaxially opposite one another both in the winding body and in the sleeve-shaped element, the compression springs being arranged between a wall of the sleeve-shaped element either in the area of the winding body or in the area of the sleeve-shaped element or the winding body and a bolt head or a plate locked on the bolt are biased.
  • the arrangement of at least two bolts has the advantage that a relative rotation of the sleeve-shaped element to the winding body, in particular about an axis essentially perpendicular to its axis of rotation, is avoided in the event of a spring break.
  • the axis is encased at least in the area of the winding former and the door leaf blocking device with a sleeve which is fixed in a rotationally fixed manner on the axis.
  • the door leaf blocking device and the winding body are mounted so that the sleeve can be regarded as a bearing which is intended to avoid wear of the axle in this area.
  • bearing elements are arranged between the sleeve-shaped element and the sleeve and / or between the winding body and the sleeve, which enable the winding body and the sleeve-shaped element to be rotated about the axis with as little friction as possible.
  • the sleeve is fixed in the axial direction via at least one pin connection on the axis, so that the sleeve cannot rotate with the winding body and the door leaf blocking device.
  • a device for monitoring a prestressed torsion spring of a door, a door or the like, in particular a weight compensation spring for a one-part or multi-part door leaf or a roller shutter consists of a non-rotatably mounted axis 1, which is arranged, for example, between two substantially parallel and oppositely arranged walls of a building.
  • a sleeve 2 is arranged on the axle, the inside diameter of which essentially corresponds to the outside diameter of the axle 1.
  • the sleeve 2 is non-rotatably via at least one pin connection 3 and is fixed in the axial direction on the axis 1.
  • the axis 1 consists of a hollow cylindrical tube.
  • a winding body 4 and a door leaf blocking device 5 are placed on the axis 1, the winding body 4 being designed, for example, as a shaft which is rotatably pushed onto the sleeve 2 with the interposition of bearing elements 6.
  • the winding body 4 is designed in a manner known per se and is used to wind up a roll armor, which is arranged in guide rails of a door opening, in order to expose the door opening.
  • the winding body 4 is supported on a torsion spring, which is not shown in the figures.
  • This at least one torsion spring is arranged at least on one side of the winding body 4 in such a way that it surrounds the axis 1, one end is fixed to the axis and the other end is directly or indirectly connected to the winding body 4.
  • the torsion spring is tensioned in such a way that the tension counteracts the downward movement of the roll armor.
  • the torsion spring that relaxes supports the upward movement, i.e. the rolling movement of the roll armor onto the winding body 4.
  • the door leaf blocking device 5 is also pushed onto the sleeve 2 with the interposition of bearing elements 7.
  • the door leaf blocking device 5 has a sleeve-shaped element 8, which is slightly conical at its end facing the torsion spring.
  • the sleeve-shaped element 8 has a collar 9 which extends radially outwards.
  • four diametrically opposed projections 10 are fastened, which consist essentially of U-shaped profiles in cross section.
  • the projections 10 are held between two profiles 11 of U-shaped cross section in such a way that the web connecting the legs of the profiles 11 abuts one leg of a projection 10.
  • the profiles 11 are fastened to the end face of the winding body 4 facing the door leaf blocking device 5, so that the sleeve-shaped element 8 is positively and non-rotatably connected to the winding body 4 via the projections 10 and the profiles 11 and thus turns together with the winding body 4 can turn axis 1.
  • the profiles 11 are dimensioned such that the sleeve-shaped element 8 can be moved in the axial direction relative to the winding body 4 without the projections 10 being able to disengage from the profiles.
  • the sleeve-shaped element 8 has a ring-shaped pawl 12 which is formed in one piece with the sleeve-shaped element 8 and can be connected to a pawl edge 13 which is arranged on the sleeve 2 in a rotationally fixed manner.
  • the torsion spring also acts directly or indirectly on the sleeve-shaped element 8.
  • the torsion spring breaks, it releases the sleeve-shaped element 8, so that prestressed springs 18 move the sleeve-shaped element 8 in the direction of the winding body 4, the sleeve-shaped element 8 being guided in the axial direction by the projections 10 and the profiles 11, and on the other hand the pawl 12 is brought into engagement with the ratchet wheel 13, whereby the winding body 4 is positively connected to the non-rotatably mounted axle 1 via the sleeve-shaped element 8, so that a crash of the roll armor wound on the winding body 4 is avoided in the event of a spring break in the torsion spring.
  • a device for monitoring a prestressed torsion spring of a gate, a door or the like, in particular a weight compensation spring for a one-part or multi-part overhead door leaf or a roller shutter, is provided in this way, which is very compact and therefore only takes up little space and which in addition, a secure locking of the winding body 4 on the non-rotatable axis in the event of spring breakage is made possible.
  • the winding body 4 has in the area of its profiles 11 bores 14 through which bolts 15 are inserted, which also each penetrate a bore 16 in the collar 9, specifically in the area of the projections 10 of the sleeve-shaped element 8.
  • the bores 14 and 16 are thus arranged coaxially with one another.
  • the spring 18 is arranged, which is supported on the one hand on the groove base of the annular groove 17 and on the other hand via a disk 19 on the bolt head 20.
  • the annular groove 17 is here formed within a hollow cylindrical section 21 on the surface of the winding body 4 opposite the profiles 11.
  • the bolt 15 is supported by a split pin 22 with the interposition of a washer 23 on the collar 9 of the sleeve-shaped element.
  • Figures 1 and 2 show the normal operating position of the device for monitoring a prestressed torsion spring, i.e. the operating position with the torsion spring intact. It can be seen that the spring 18 is biased in this position. Accordingly, the spring 18 is a compression spring.
  • connection of the door leaf blocking device 5 is interrupted via the torsion spring with the axis 1 or with another structural element which is mounted fixedly on the masonry, so that the sleeve-shaped element 8 of the door leaf blocking device 5 is in the axial direction of the axis 1 is moved.
  • This displacement of the sleeve-shaped element 8 is, as already described, caused by the abruptly relaxing springs 18, so that the pawl 12 positively engages with the ratchet wheel 13 and the winding body 4 is fixed with respect to the axis 1.
  • This operating position when the torsion spring is broken is in the Figures 4 and 5 shown.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP96100490A 1995-01-13 1996-01-15 Dispositif de surveillance d'un ressort de torsion précontraint Withdrawn EP0722031A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19500894 1995-01-13
DE19500894 1995-01-13
DE19524495A DE19524495A1 (de) 1995-01-13 1995-07-05 Vorrichtung zur Überwachung einer vorgespannt betriebenen Torsionsfeder
DE19524495 1995-07-05

Publications (1)

Publication Number Publication Date
EP0722031A1 true EP0722031A1 (fr) 1996-07-17

Family

ID=26011593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100490A Withdrawn EP0722031A1 (fr) 1995-01-13 1996-01-15 Dispositif de surveillance d'un ressort de torsion précontraint

Country Status (1)

Country Link
EP (1) EP0722031A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741662A1 (fr) * 1995-11-27 1997-05-30 Simu Dispositif de securite pour volet roulant
FR2756319A1 (fr) * 1996-11-28 1998-05-29 Javey Michel Dispositif anti-chute pour fermetures a effacement vertical
EP1475500A1 (fr) * 2003-03-17 2004-11-10 Ballan S.p.A. Dispositiv anti-chute pour porte sectionelle avec une ressort de compensation
US6862845B2 (en) * 2000-12-07 2005-03-08 Flexi-Force, B.V. Drop-catch mechanism for an overhead door
GB2428758A (en) * 2005-07-26 2007-02-07 Alan Paul Young Roller shutter braking mechanism

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8202877A (nl) * 1982-07-15 1984-02-01 Cornelis Willem Nissen Beveiligingsmechanisme voor een met medewerking van de zwaartekracht naar de sluitstand bewegende deur.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8202877A (nl) * 1982-07-15 1984-02-01 Cornelis Willem Nissen Beveiligingsmechanisme voor een met medewerking van de zwaartekracht naar de sluitstand bewegende deur.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741662A1 (fr) * 1995-11-27 1997-05-30 Simu Dispositif de securite pour volet roulant
FR2756319A1 (fr) * 1996-11-28 1998-05-29 Javey Michel Dispositif anti-chute pour fermetures a effacement vertical
EP0845575A1 (fr) * 1996-11-28 1998-06-03 Michel Javey Dispositif anti-chute pour fermetures à effacement vertical
US6862845B2 (en) * 2000-12-07 2005-03-08 Flexi-Force, B.V. Drop-catch mechanism for an overhead door
EP1475500A1 (fr) * 2003-03-17 2004-11-10 Ballan S.p.A. Dispositiv anti-chute pour porte sectionelle avec une ressort de compensation
GB2428758A (en) * 2005-07-26 2007-02-07 Alan Paul Young Roller shutter braking mechanism
GB2428758B (en) * 2005-07-26 2008-01-16 Alan Paul Young Roller shutter braking mechanism

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