EP0318496B1 - Sicherheitsvorrichtung für den fall eines federbruches an einer rolltür - Google Patents

Sicherheitsvorrichtung für den fall eines federbruches an einer rolltür Download PDF

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Publication number
EP0318496B1
EP0318496B1 EP87905307A EP87905307A EP0318496B1 EP 0318496 B1 EP0318496 B1 EP 0318496B1 EP 87905307 A EP87905307 A EP 87905307A EP 87905307 A EP87905307 A EP 87905307A EP 0318496 B1 EP0318496 B1 EP 0318496B1
Authority
EP
European Patent Office
Prior art keywords
door
spring
movement
cable
arresting
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
EP87905307A
Other languages
English (en)
French (fr)
Other versions
EP0318496A1 (de
Inventor
Fred Bengtsson
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.)
Crawford Door Production AB
Original Assignee
Crawford Door Production AB
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 Crawford Door Production AB filed Critical Crawford Door Production AB
Priority to AT87905307T priority Critical patent/ATE70882T1/de
Publication of EP0318496A1 publication Critical patent/EP0318496A1/de
Application granted granted Critical
Publication of EP0318496B1 publication Critical patent/EP0318496B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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 present invention relates to a spring fracture safety device intended for use in an overhead sliding door or similar closing element which is arranged to move between a raised and a lowered end position and which is attached to a helical door-actuating spring and controlled by guide rollers or similar control means running in tracks extending along the intended path of movement of the door, the helical door-actuating spring being wound about a support to which it is secured by means of a clamp.
  • EP-A-0 151 427 One prior-art device of the kind referred to is disclosed in EP-A-0 151 427.
  • this device when the spring fractures, its end releases a spring-loaded detent which moves into braking engagement with a sprocket wheel, retarding the movement of the door.
  • a tension detector means is provided to sense the spring tension in order to indicate the occurrence of a spring fracture.
  • the present invention provides means to ensure that without any use of fracture sensing means, in the event of fracture of the spring arranged to balance the overhead sliding door, the door is nonetheless positively arrested in its then position, thus obviating all risks for accidents.
  • the principal object of the present invention thus is to provide a device of the kind indicated above which is arranged to function efficiently and reliably in the event of spring fracture, irrespective of where along the length of the spring that said fracture occurs.
  • Fig. 1 illustrates the device in accordance with the invention applied to one of the side tracks of an overhead sliding door 6.
  • a helically wound door-actuation spring 1 is supported by a number of brackets 3 which may be secured at the upper part of a door opening.
  • the spring 1 is connected to the door panel 6 or similar closing element in a manner known in the art and the door panel 6 is provided with a number of guide rollers 5 or equivalent guide means running in guide tracks 4 extending along the lateral edges of the door opening.
  • a movement transfer means 9 for instance in the form of a cable 9
  • one free end 1A of the spring 1 is connected to a mechanism 7 arranged to trigger off a door-arresting element 8 in interacting relationship with the guide rollers 5.
  • the cable 9 is preferably accommodated in a protected position inside a cable protector tube 10 extending between the free spring end 1A and the door-arresting element 8. End 9A of the cable 9 is attached to a sleeve 11 which is mounted over the spring end 1A whereas the opposite cable end 9B is attached to the trigger-off mechanism 7 in a manner and for a purpose to be described more in detail in the following.
  • the sleeve 11 is formed with a hole 12 at its outer end and the cable end 9A is passed through said sleeve hole 12 and then bent over and attached to the cable 9 by means of a suitable fastener 13 in order to be securely attached to the cable.
  • the spring end 1A preferably extends straight outwards from the helically wound spring 1, i.e. more or less tangentially with respect to the spring windings, so as to be able to cooperate with a stop 14 on the spring bracket 3.
  • the stop 14 serves to support the spring end 1A when the spring 1 is held under tension during normal operation of the door and its spring 1.
  • a recess 15, having a configuration matching that of the spring end 1A, is formed in the stop 14 for the purpose of receiving and securely retaining the spring end 1A therein, thus preventing the spring 1 from spinning during operation and/or,when placed under tension.
  • the spring 1 is wound about a sleeve-shaped support 16 which extends around and encloses a shaft 19.
  • the shaft 19 is attached in any convenient manner as known in the art to a cable drum 18 connected to a door operating cable 17, and to said shaft is secured the spring end opposite to that of spring end 1A.
  • a clamp 20 which is fastened in a suitable manner, e.g. by means of screws.
  • the door-arresting element 8 is arranged for movement between Position I, shown in Fig. 5, in which it is ready to be released by means of the trigger-off mechanism 7, and a door-arresting position, Position II, illustrated in Figs. 1 and 2.
  • Position I the spring-fracture safety device is in a readiness position in which the guide rollers 5 are able to move freely inside their associated track 4 during normal door-raising and lowering movements.
  • the spring-fracture safety device will be released automatically, as will be explained in closer detail in the following, whereby the door-arresting element 8, in response to actuation by the trigger-off mechanism 7, will project into the path of movement 22 of a guide roller 5, for example into the internal space 4A of the track defined by the transversely opposite track surfaces 4B, on either side of the running surface on the guide roller.
  • the track surfaces are arranged to cooperate with the guide roller running surfaces in order to stop the movement of the door.
  • the door-arresting element 8 consists of a brake block 23 which is provided with a number of stop projections 24 projecting in the same direction away from the block 23.
  • the brake block 23 is arranged to be moved from Position I in which it is ready to be released in response to actuation from a number of release springs 25, the latter in accordance with the embodiment shown being made from an arcuately bent, resilient material, or in response to spring-actuation in some other way, to ensure that the block 23 is triggered off to its active position, when necessary.
  • the triggering-off of the block 23 is prevented in Position I by means of the trigger-off mechanism 7 which may consists of a pin one end 7A of which is attached to the cable end 9B which, as indicated in the aforegoing is remote from the cable end 9A attached to the spring end 1A.
  • the opposite end 7B of the mechanism 7 is received in an aperture 26 formed in a tongue-shaped attachment 27 which projects in a direction away from the bottom 28A of a trough-shaped casing 28 housing the door-arresting element 8 in its internal cavity 29.
  • the attachment tongue 27 projects through a matching reception aperture 30 formed in the brake block 23.
  • the associated springs 25 are free to push the brake block 23 outwards, in the direction of arrow 32, which will occur precisely at the same moment as the fracture occurs in the spring 1, owing to the interconnection in accordance with the invention of components 1A, 9, 9A and 11.
  • the springs 25 may be arranged for contact with respectively the bottom 28A of the casing and with the rear surface 23A of the brake block. They are provided with guide pins 33 projecting at right angles, for example, from the central part 25A of the spring and thus also from the bottom 28A of the casing so as to project into matching holes 34 in the brake blocks 23.
  • the casing 28 has fastening means 35 for attachment of the casing 28, e.g. to the exterior or other surface of the door guide track 4, as clearly shown in Figs. 1 and 2.
  • it is formed with an elongated opening 36 in one of its sides, through which the cable 9 may be inserted to be secured to the attachment 27.
  • the springs 25 are acommodated in a space 28B formed between the bottom 28A of the casing and the brake block, whilst the brake block 23 and its stop projections 24 are fully retracted inside a space 28D defined by an opening edge 28C.
  • the stop projections 24 are formed with a notch 37 for accommodation therein of a part of the associated guide roller, so as to function as a support for said guide roller 5 and preferably also for a swinging roller holder 38 attached to the door element 6 as will be described in more detail below.
  • the roller holder 38 consists of two spaced-apart swinging arms 39, 40 which are attached at one end 39A, 40A to a swinging axle 42 accommodated in a bearing 41 attached to the door panel 6, so as to be permitted to be pivoted about the bearing 41.
  • a tube 43 is securely attached to the arms 39, 40, and a mounting shaft 44 for a door guide roller 5 is accommodated by said tube 43, as illustrated in Fig. 2.
  • the swinging arms 39, 40 are attached by means of bolted connections 45 to a mounting plate 46, which is secured to the inner face 6A of the door by means of screws 47, and which comprises two flanges 48, 49 projecting at right angles from the door panel 6, one for each arm 39, 40.
  • the bolts 45 are accommodated in curved openings 50 in the flanges and in holes 51 which extend through the swinging arms 39, 40.
  • a suitable mounting component 52 which is received in an adjacent section 61 of the door panel and which is attached to the shaft 42 by means of a tongue 53 containing a hole, forms a link between two sections 61, 62 of the door panel which are thus hingedly interconnected.
  • the safety device can be re-used after replacement of the broken spring 1, once the constituent parts have been repositioned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Window Of Vehicle (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Body Structure For Vehicles (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Building Environments (AREA)
  • Centrifugal Separators (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Gates (AREA)

Claims (9)

1. Sicherheitsvorrichtung für den Fall eines Federbruches an einer Decken-Rolltür (6) oder einem ähnlichen Verschlusselement (6), das sich zwischen einer hochgefahrenen und einer heruntergefahrenen Endstellung bewegt, wobei die Tür an einer schraubenförmigen Türbetätigungsfeder (1) befestigt und von Führungsrollen (5) oder ähnlichen Führungsgliedern gesteuert ist, welche in sich längs der vorgesehenen Bewegungsbahn der Tür erstreckenden Spuren (4) laufen, und wobei die schraubenförmige Türbetätigungsfeder (1) um eine Stütze (16) gewunden und mit einer Klammer (20) an dieser befestigt ist, dadurch gekennzeichnet,
   dass das eine, freie Ende (1A) der Feder einen vorragenden Teil bildet, der bei normalem Türbetrieb mit einem Anschlag (14) zusammenwirkt, der das Federende (1A) an einem Punkt im Abstand vom äusseren Rand des Federendes abstützt.
   dass das obere Ende eines Bewegungsübertragungsglieds (8), beispielsweise eines Seils (9), am äusseren Rand des Federendes (1A) und das entgegengesetzte Ende an einer Auslöseeinrichtung (7) befestigt ist,
   dass ein mit den Führungsrollen (5) in den Spuren (4) zusammenwirkendes Türbremselement (8) mit der Auslöseeinrichtung verbunden ist und bei Betätigung der Auslöseeinrichtung (7) aus einer eingefahrenen Stellung (I), in der es freigabebereit ist und die Führungsrollen (5) in den zugehörigen Spuren (4) frei hin- und herlaufen, in eine Türbremsstellung (II) führbar ist, in der das Element (8) in die Bewegungsbahn der Rollen (5) hineinragt und somit die weitere Bewegung der Tür anhält,
   dass die Auslöseeinrichtung (7) das Türbremselement (8) in dessen Freigabestellung (I) hält, wenn das Federende (1A) vom Anschlag (14) abgestützt und die Feder (1) gespannt ist, jedoch bei einem das Federende (1A) von seiner Stütze (14) lösenden und demzufolge das Seil (9) dehnenden Bruch der Feder (1) das Türbremselement (8) auslöst, so dass das Element (8) seine Türbremsstellung (II) einnimmt, in der es in die zugehörige Spur (4) hineinragt und somit die Bewegungsbahn der Rollen (5) darin blockiert.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das als Bewegungsübertragungsglied wirkende Seil (9) am vorragenden Teil (1A) der Betätigungsfeder (1) vorzugsweise mittels einer Hülse (11) befestigt ist, welche an ihrem anderen Ende ein Loch zur Befestigung am Federende aufweist.
3. Vorrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass das Seil (9) in einem sich zwischen dem Federende (1A) und dem Türbremselement (8) erstreckenden Seilschutzrohr (10) untergebracht ist.
4. Vorrichtung nach einem der Ansprüche 1-3, dadurch gekennzeichnet, dass das Türbremselement (8) ein mit einer Anzahl Bremsansätze (24) versehener, federbetätigter Bremsklotz (23) ist, der in einem an der Seite einer Spur (4) angebrachten Gehäuse (28) angeordnet ist.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Bremsklotz (23) mittels vom Boden (28A) des Gehäuses vorragender Führungsglieder (33) gesteuert ist, welche vorzugsweise eine Anzahl in Bohrungen (34) im Bremsklotz (23) untergebrachter Führungsbolzen sind.
6. Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass eine vorzugsweise aus gebogenem Federmaterial hergestellte Auslösefeder (25) in einem vom Boden (28A) des Gehäuses (28) und dem Bremsklotz (23) abgegrenzten Raum (28B) untergebracht ist.
7. Vorrichtung nach einem der Ansprüche 4-6, dadurch gekennzeichnet, dass einer der Bremsänsatze (24) eine Aussparung (37) zur Aufnahme eines Teils einer Führungsrolle (5) od. dgl. aufweist.
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Bremsansätze als Auflagen für am Türelement (6) befestigte, pendelnde Rollenhalter (38) dienen.
9. Vorrichtung nach einem der Ansprüche 4-8, dadurch gekennzeichnet, dass die Auslöseeinrichtung (7) einen am Bewegungsübertragungsseil (9) befestigten Bolzen (9) umfasst, der mit einer am Gehäuse (28) befestigten Halterung (27) verbunden ist, um den Bremsklotz (23) zwangsläufig in seiner Auslösestellung (I) zu halten.
EP87905307A 1986-08-07 1987-08-05 Sicherheitsvorrichtung für den fall eines federbruches an einer rolltür Expired - Lifetime EP0318496B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87905307T ATE70882T1 (de) 1986-08-07 1987-08-05 Sicherheitsvorrichtung fuer den fall eines federbruches an einer rolltuer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8603341 1986-08-07
SE8603341A SE457814B (sv) 1986-08-07 1986-08-07 Anordning vid ett fjaederbrottskydd foer en takskjutport eller liknande

Publications (2)

Publication Number Publication Date
EP0318496A1 EP0318496A1 (de) 1989-06-07
EP0318496B1 true EP0318496B1 (de) 1991-12-27

Family

ID=20365233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87905307A Expired - Lifetime EP0318496B1 (de) 1986-08-07 1987-08-05 Sicherheitsvorrichtung für den fall eines federbruches an einer rolltür

Country Status (9)

Country Link
EP (1) EP0318496B1 (de)
AT (1) ATE70882T1 (de)
AU (1) AU7806287A (de)
DE (1) DE3775566D1 (de)
DK (1) DK187088A (de)
FI (1) FI890355A0 (de)
NO (1) NO166666C (de)
SE (1) SE457814B (de)
WO (1) WO1988001002A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU662019B2 (en) * 1991-11-13 1995-08-17 G & C Research & Development Pty Ltd Support mechanism for motorized doors
US7114753B2 (en) 2001-02-09 2006-10-03 Rite-Hite Holding Corporation Latch assembly for a sectional door

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258062A (en) * 1964-01-09 1966-06-28 Lucian T Lambert Overhead door safety catch
GB1591406A (en) * 1977-01-24 1981-06-24 Quaker Oats Co Matrix for a food product employing said matrix and process for preparing same
DE3378836D1 (en) * 1983-09-26 1989-02-09 Crawford Door Ab An arrangement for preventing a door from dropping down precipitately
DE3425909A1 (de) * 1984-01-24 1986-01-23 Hörmann KG Brockhagen, 4803 Steinhagen Federueberwachungsgeraet
DE3515257A1 (de) * 1985-04-27 1986-11-06 Rollwände- & Jalousienfabrik C. Behrens GmbH & Co, 3000 Hannover Absturzsicherung fuer die verschlusselemente von gebaeude- und fahrzeugverschluessen

Also Published As

Publication number Publication date
DE3775566D1 (de) 1992-02-06
DK187088D0 (da) 1988-04-06
FI890355A7 (fi) 1989-01-25
NO166666B (no) 1991-05-13
EP0318496A1 (de) 1989-06-07
SE457814B (sv) 1989-01-30
SE8603341D0 (sv) 1986-08-07
AU7806287A (en) 1988-02-24
DK187088A (da) 1988-04-06
NO166666C (no) 1991-08-21
WO1988001002A1 (en) 1988-02-11
ATE70882T1 (de) 1992-01-15
NO881485L (no) 1988-06-06
FI890355A0 (fi) 1989-01-25
SE8603341L (sv) 1988-02-08
NO881485D0 (no) 1988-04-06

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