EP0314201A2 - Lüftungsklappe - Google Patents

Lüftungsklappe Download PDF

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Publication number
EP0314201A2
EP0314201A2 EP88120252A EP88120252A EP0314201A2 EP 0314201 A2 EP0314201 A2 EP 0314201A2 EP 88120252 A EP88120252 A EP 88120252A EP 88120252 A EP88120252 A EP 88120252A EP 0314201 A2 EP0314201 A2 EP 0314201A2
Authority
EP
European Patent Office
Prior art keywords
flap
prop
ventilator
fire
opening
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.)
Granted
Application number
EP88120252A
Other languages
English (en)
French (fr)
Other versions
EP0314201B1 (de
EP0314201A3 (en
Inventor
Brian Charles Tregenna
Richard William Flat 1 Churchill
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.)
Troldtekt Ltd
Original Assignee
Colt International Ltd
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 GB868628112A external-priority patent/GB8628112D0/en
Priority claimed from GB878723551A external-priority patent/GB8723551D0/en
Application filed by Colt International Ltd filed Critical Colt International Ltd
Priority to EP88120252A priority Critical patent/EP0314201B1/de
Priority to AT88120252T priority patent/ATE84232T1/de
Publication of EP0314201A2 publication Critical patent/EP0314201A2/de
Publication of EP0314201A3 publication Critical patent/EP0314201A3/en
Application granted granted Critical
Publication of EP0314201B1 publication Critical patent/EP0314201B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/247—Operating or controlling mechanisms having non-mechanical actuators electric
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/002—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means
    • E05F1/006—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means by emergency conditions, e.g. fire
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1292—Mechanisms in the shape of hinges or pivots, operated by springs with a gas spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/627—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
    • 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
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows

Definitions

  • the present invention comprises improvements relating to ventilators and concerns controllable venti­lators which are required to open to exhaust heat, smoke and fumes from a building in the event of a fire and to close to conserve heat in the building under normal conditions.
  • such a venti­lator comprises an opening flap ventilator for buildings having a frame defining a ventilation opening, a hinged ventilation flap for closing the opening, and springs for opening the ventilation flap characterized by a fused fire prop pivotally mounted on the flap to swing round to engage an abutment on the frame to prop the flap open in the event of a fire which might otherwise cause failure of the springs.
  • the ventilator may be opened by its springs in the event of a fire, and this may be done automatically in response to the onset of a fire condition using a suitable fire and/or smoke detector.
  • the fused prop then acts as an additional safety measure to prevent reclosing of the flap.
  • the ventilator has a hollow frame 10 and a single, bottom hung, outwardly hingeing ventilator flap 11 to provide for day-to-day and for fire ventilation hinged to the frame at 12.
  • Gas springs 13, one at each side, are provided for opening the flap 11, the flap then assuming its substantially vertical position as shown in Fig. 1.
  • An electric motor-gear drive mechanism 14 is installed inside a hollow, top frame member 10 a of the ventilator about midway between the side frame members 10 b of the frame 10.
  • the bottom frame member is indicated at 10 c .
  • the unit 14 comprises an electric motor 15 and a gear drive mechanism 16 housed in a gear box housing 17 adapted for flange mounting at 18 inside the ventilator top frame member 10 a .
  • the unit 14 has an output drive in the form of a winch pulley generally indicated at 20 and disposed laterally to one side of the unit which is generally elongated to fit within the hollow top frame member 10 a .
  • the pulley 20 is fixedly carried by an output drive shaft 22 which also carries the final gear 24 of a spur gear set 24, 26, 28 contained within the housing 17.
  • the gears 26 and 28 of the spur gear set are mounted on further drive shafts 30, 32.
  • the drive shafts 22, 30 run in ball races 34 and 36 carried by the housing 17.
  • the drive shaft 32 runs at one end in a ball race 38 carried by the housing 17, the shaft 32 also being rotatably supported concentrically within a hollow drive shaft 40 which runs in a ball race 42 carried by the housing 17.
  • the motor shaft 44 fixedly carries a worm 46 which drives a worm wheel 48 fixedly carried by the shaft 40.
  • the shafts 32, 40 carry laterally outside the housing 17, on the side opposite the winch pulley 20, the two elements 50 and 52 respectively of an electromagnetic clutch 54.
  • the clutch 54 when energised, drivably engages the drive shaft 40 with the drive shaft 32 and operation of the motor 15 in one direction or the other drives the pulley 20 to open or close the ventilator.
  • the clutch 54 is incorporated in a separate electrical circuit, controlled by automatic fire response means, which maintains the clutch energised so long as a power supply is available and no fire response is required, so that in the event of a power failure, the ventilator opens automatically and cannot fail to function as a fire ventilator under such conditions.
  • the electrical circuit of the clutch 54 includes a smoke or fire detecting device operable to de-energise the clutch to release the ventila­tion flap for automatic opening by its gas-springs in the event of a fire being detected.
  • the clutch may be incorporated in the electrical circuit of the motor so that the clutch remains energised so long as an electrical power supply is available to operate the motor and open the ventilator in response to the operation of a smoke or fire detecting device. With this arrange­ment the clutch operates simply as a fail safe device.
  • the ventilator may be opened by its gas-springs 13, upon de-energisation of the clutch 54, and closed by operation of the motor 15, the clutch 54 then being energised.
  • the ventilator may be opened and closed by operation of the motor.
  • a fused fire prop 85 (see Fig. 1), pivotally mounted on the frame of the flap 11 swings downwardly to engage an abutment 86 on the frame 10 to prop the flap 11 open in the event of a fire which might otherwise cause the gas-springs 13 to buckle.
  • the prop 85 is formed in two sections normally soldered together as at 87. The prop sections may be joined together with a separate fusible joint mechanically fastened to the sections of the prop.
  • a spring 88 may be provided to swing the prop downwardly and the flap 11 may carry a stop 90 to arrest the prop in its operative position.
  • the electric motor 15 has an operating voltage of 24V DC, an output of 80 watts and a normal operating speed of 3,200 r.p.m.
  • the clutch 54 has an operating voltage of 24 volts DC.
  • the output torque of the gear drive mechanism 16 is 50 Nm at a speed of approximately 7 r.p.m.
  • the worm gear set has a gear ratio of 48 to 1 and the spur gear set a gear ratio of 10 to 1.
  • the cable 76 is 2 mm diameter stainless steel wire.
  • the electric motor-­gear drive units 14 which has been described may be incorporated in other kinds of controllable ventilators used for fire ventilation purposes, the cable 76 being connected to close, and to control the opening of, e.g. a pair of hinged, oppositely opening ventilation flaps in a roof mounted ventilator to close, and to control the opening of, the louvres of a controllable louvred ventilator by spring action.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Air-Flow Control Members (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP88120252A 1986-11-25 1987-11-25 Lüftungsklappe Expired - Lifetime EP0314201B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP88120252A EP0314201B1 (de) 1986-11-25 1987-11-25 Lüftungsklappe
AT88120252T ATE84232T1 (de) 1986-11-25 1987-11-25 Lueftungsklappe.

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB8628112 1986-11-25
GB868628112A GB8628112D0 (en) 1986-11-25 1986-11-25 Ventilators
GB8723551 1987-10-07
GB878723551A GB8723551D0 (en) 1987-10-07 1987-10-07 Ventilators
EP88120252A EP0314201B1 (de) 1986-11-25 1987-11-25 Lüftungsklappe

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP87310382.4 Division 1987-11-25

Publications (3)

Publication Number Publication Date
EP0314201A2 true EP0314201A2 (de) 1989-05-03
EP0314201A3 EP0314201A3 (en) 1990-02-07
EP0314201B1 EP0314201B1 (de) 1993-01-07

Family

ID=27231363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120252A Expired - Lifetime EP0314201B1 (de) 1986-11-25 1987-11-25 Lüftungsklappe

Country Status (2)

Country Link
EP (1) EP0314201B1 (de)
AT (1) ATE84232T1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405959A1 (de) * 1989-06-29 1991-01-02 Colt International B.V. Luke für ein Dach oder eine Dachverkleidung
EP0430720A3 (en) * 1989-12-01 1992-09-02 Colt International Limited Improvements relating to ventilators
US6991536B2 (en) 2000-12-01 2006-01-31 Kent Tooling And Components Limited Air flow controller and fire damper in an air flow duct
IT201900003499A1 (it) * 2019-03-11 2020-09-11 Iveco Spa Veicolo provvisto di sistema di sicurezza per il thermal runaway

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323438A (en) * 1965-08-23 1967-06-06 Western Eng & Mfg Co Explosion and fire release ventilator
US3728956A (en) * 1971-05-24 1973-04-24 Jenn Air Corp Smoke and heat relief vent
FR2254183A5 (en) * 1973-12-11 1975-07-04 Sofrair Ventilation duct flap with fire lock - strip melts to release latch to prevent remote flap operation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405959A1 (de) * 1989-06-29 1991-01-02 Colt International B.V. Luke für ein Dach oder eine Dachverkleidung
EP0430720A3 (en) * 1989-12-01 1992-09-02 Colt International Limited Improvements relating to ventilators
US6991536B2 (en) 2000-12-01 2006-01-31 Kent Tooling And Components Limited Air flow controller and fire damper in an air flow duct
IT201900003499A1 (it) * 2019-03-11 2020-09-11 Iveco Spa Veicolo provvisto di sistema di sicurezza per il thermal runaway
EP3708754A1 (de) * 2019-03-11 2020-09-16 Iveco S.p.A. Fahrzeug mit einem thermischen fluchtwegsicherungssystem
US11946287B2 (en) 2019-03-11 2024-04-02 Iveco S.P.A. Vehicle provided with a security system for thermal runaway

Also Published As

Publication number Publication date
EP0314201B1 (de) 1993-01-07
EP0314201A3 (en) 1990-02-07
ATE84232T1 (de) 1993-01-15

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